Highlights of Condensed Matter Physics (DCMP) Talks @ APS 2019 March Meeting (2)
American Physics Society (APS) March meeting is one of the largest physics meetings in the world. In 2019, it was held in Boston, Massachusetts. More than 10,000 talks were presented in this meeting.
To help the community quickly catch up on the work presented in this meting, Paper Digest Team processed all talk abstracts, and generated one highlight sentence (typically the main topic) for each. Readers are encouraged to read these machine generated highlights / summaries to quickly get the main idea of each talk.
This article is on the talks related to Condensed Matter Physics (DCMP).
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TABLE : Condensed Matter Physics (DCMP) 2
| Title | Authors | Highlight | Session | |
|---|---|---|---|---|
| 991 | Asymmetric g Tensor in Low-Symmetry Two-Dimensional Hole Systems | Winkler, Roland; Gradl, C.; Schueller, C.; Korn, T. | In contrast, our study demonstrates that the tensor g is generally neither symmetric nor antisymmetric. | Session 80: Spin-orbit Coupling in Semiconductors |
| 992 | Enhancement of the Spin-Orbit Coupling in Silicon by Bismuth Doping | Rortais, Fabien; LEE, SOOBEOM; Ohshima, Ryo; Dushenko, Sergey; Ando, Yuichiro; Shiraishi, Masashi | The purpose of this study is to create a sizable spin-orbit interaction in Si by implantation of a heavy element, bismuth (Bi). | Session 80: Spin-orbit Coupling in Semiconductors |
| 993 | Strain engineering of Rashba-Dresselhaus spin-orbit coupling and intrinsic spin-Hall effect in Si | Lou, Paul; Katailiha, Anand; Bhardwaj, Ravindra; Kumar, Sandeep | In this experimental study, we use strain gradient to break the structural inversion symmetry, which causes flexoelectric effect and charge separation. | Session 80: Spin-orbit Coupling in Semiconductors |
| 994 | Unidirectional magnetoresistance in a bulk Rashba ferromagnet | Yoshimi, Ryutaro; Yasuda, Kenji; Tsukazaki, Atsushi; Kawamura, Minoru; Takahashi, Kei; Kawasaki, Masashi; Tokura, Yoshinori | In this study, we investigated the unidirectional magnetoresistance in thin films of Ge 1-xMn xTe, which is a bulk ferromagnetic Rashba semiconductor. | Session 80: Spin-orbit Coupling in Semiconductors |
| 995 | The temperature and doping dependence of inverse spin Hall effect in n-GaAs | Jiang, Zhen; Patel, Sahil; Crowell, Paul; Palmstrom, Chris | We find that the ISHE voltage at low temperatures is much larger than expected based on previous measurements of the direct spin Hall effect. | Session 80: Spin-orbit Coupling in Semiconductors |
| 996 | Time resolved spectroscopy of n-type InAsP films | Herath Mudiyanselage, Rathsara; Magill, Brenden; Khodaparast, Giti; Spencer, Joseph; McMillan, Kiara; Choi, Sukgeun; Palmstrom, Chris | In this study, we employed ultrafast Time Resolved Differential Reflectivity (TRDR) and ultrafast time resolved Magneto-optic Kerr Effect (MOKE) on InAs xP 1-x ternary alloy. | Session 80: Spin-orbit Coupling in Semiconductors |
| 997 | Protected Hidden Spin Polarization by Crystalline Symmetry in Centrosymmetric Nonmagnetic Systems | Zhang, Yingjie; Liu, Qihang | We derive a tight-binding model with spin-orbital interaction to describe the band edge behaviors of a two-dimensional centrosymmetric system with non-symmorphic symmertry. | Session 80: Spin-orbit Coupling in Semiconductors |
| 998 | Uncovering and tailoring hidden Rashba spin-orbit coupling in centrosymmetric crystals | Yuan, Linding; Liu, Qihang; Zhang, Xiuwen; Luo, Jun-Wei; Li, Shu-Shen; Zunger, Alex | Here we demonstrate that the spin-splitting in R-2 is enforced by the non-symmorphic symmetry of the wavevectors, which ensures that the pertinent spin wavefunctions segregate spatially on just one of the two inversion-partner sectors and thus avoid compensation. | Session 80: Spin-orbit Coupling in Semiconductors |
| 999 | Ubiquitous Spin-Orbit Coupling in a Screw Dislocation with High Spin Coherency | Hu, Lin; Huang, Huaqing; Wang, Zhengfei; Jiang, Wei; Ni, Xiaojuan; Zhou, Yinong; Zielasek, V; Lagally, Max; Huang, Bing; Liu, Feng | We theoretically demonstrate that screw dislocation (SD), a 1D topological defect widely present in semiconductors, exhibits ubiquitously a new form of spin-orbit coupling (SOC) effect. | Session 80: Spin-orbit Coupling in Semiconductors |
| 1000 | Ubiquitous Spin-orbit Coupling in a Screw Dislocation of Semiconductors | Huang, Bing; Hu, Lin; Liu, Feng | We demonstrate that screw dislocation (SD), a 1D topological defect widely present in semiconductors, exhibits ubiquitously a new form of spin-orbit coupling (SOC) effect. | Session 80: Spin-orbit Coupling in Semiconductors |
| 1001 | Extreme asymmetry of 90-degree domain walls in multilayered films of (Ga,Mn)(As,P) | Vlasko-Vlasov, Vitalii; Kwok, Wai-Kwong; Dong, Sining; Liu, Xinyu; Dobrowolska, Malgorzata; Furdyna, J | We discuss how such totally asymmetric Neel domain walls can appear due to Dzyaloshinskii-Moriya interactions enhanced by the multiple sharp interfaces in the multilayered films. | Session 80: Spin-orbit Coupling in Semiconductors |
| 1002 | Large perpendicular magnetic anisotropy and anisotropic electronic structure of the new ferromagnetic semiconductor (Ba,K)(Zn,Mn)2As2 single crystal studied by angle-dependent x-ray magnetic circular dichroism | Sakamoto, Shoya; Zhao, Guoqiang; Shibata, Goro; Deng, Zheng; Zhao, Kan; Chen, Bijuan; Nonaka, Yosuke; Ikeda, Keisuke; Chi, Zhendong; Wan, Yuxuan; Suzuki, Masahiro; Koide, Tsuneharu; Maekawa, Sadamichi; Uemura, Yasutomo; Jin, Changqing; Fujimori, Atsushi | In the present study, we have investigated the origin of the perpendicular magnetic anisotropy by angle-dependent x-ray magnetic circular dichroism (AD-XMCD) measurements. | Session 80: Spin-orbit Coupling in Semiconductors |
| 1003 | Topological Fermi-arcs and Weyl node connectivity in the ferromagnetic Weyl semimetal Co3Sn2S2 | Morali, Noam; Batabyal, Rajib; Nag, Pranab; Liu, Enke; Xu, Qiunan; Sun, Yan; Yan, Binghai; Felser, Claudia; Avraham, Nurit; Beidenkopf, Haim | We use scanning tunneling spectroscopy to verify the classification of ferromagnetic Co 3Sn 2S 2 as a Weyl semimetal as well as its time reversal broken origin. | Session 81: Spectroscopies of Topological Systems |
| 1004 | A bi-directional photovoltaic shift on the surface of topological insulators | Yoshikawa, Tomoki; Sumida, Kazuki; Ishida, Yukiaki; Chen, Jiahua; Nurmamat, Munisa; Kokh, Konstantin; Tereshchenko, Oleg; Shin, Shik; Kimura, Akio | Here, we have performed time- and angle- resolved photoemission spectroscopy on bulk-insulating TIs of n- and p-type Bi 2Te 3. | Session 81: Spectroscopies of Topological Systems |
| 1005 | Spectromicroscopic Analysis of Surface and Bulk Band Structure at a Disordered Topological Insulator Surface | Kotta, Erica; Miao, Lin; Xu, Yishuai; Bostwick, Aaron; Jozwiak, Chris; Rotenberg, Eli; Suzuki, Takehito; Checkelsky, Joseph; Wray, Lewis | For this talk I will present ARPES spectromiscroscopy data which was used to map the surface band structure of a beam-sensitive topological insulator sample (disorder-enriched Bi2Se3). | Session 81: Spectroscopies of Topological Systems |
| 1006 | Topological nodal-line semimetals in ferromagnetic rare-earth-metal monohalides | Nie, Si-Min; Weng, Hongming; Prinz, Fritz | Based on first-principles calculations and effective model analysis, we propose that layered ferromagnetic rare-earth-metal monohalides LnX (Ln=La, Gd; X=Cl, Br) exhibit long pursued topological phases. | Session 81: Spectroscopies of Topological Systems |
| 1007 | Weak topological insulator state in quasi-one-dimensional bismuth iodide observed by surface-selective nano-ARPES | Noguchi, Ryo; Takahashi, Takanari; Kuroda, Kenta; Ochi, Masayuki; Shirasawa, Tetsuro; Bareille, C�dric; Sakano, Masato; Nakayama, Mitsuhiro; Watson, Matthew; Yaji, Koichiro; Harasawa, Ayumi; Iwasawa, Hideaki; Dudin, Pavel; Kim, Timur; Hoesch, Moritz; Kandyba, Viktor; Giampietri, Alessio; Barinov, Alexei; Shin, Shik; Arita, Ryotaro; Sasagawa, Takao; Kondo, Takeshi | In this contribution, we provide first experimental evidence for a WTI state in quasi-one-dimensional ?-Bi 4I 4. | Session 81: Spectroscopies of Topological Systems |
| 1008 | Large magnetic gap at the Dirac point in a Mn-induced Bi2Te3 heterostructure | Rader, Oliver; Rienks, Emile; Mandal, Partha; Caha, Ondrej; Ruzicka, Jan; Ney, Andreas; Steiner, Hubert; Volobuev, Valentyn; H. Groiss, Heiko; Khan, Saleem; Min�r, Jan; Albu, Mihaela; Ebert, Hubert; Bauer, G�nther; Varykhalov, Andrei; S�nchez-Barriga, Jaime; Wimmer, Stefan; Springholz, Gunther | Here, we use low temperature ARPES to reveal the magnetic gap of Mn-doped Bi 2Te 3 films which is present only below T C of 10-12 K. Surprisingly, the gap is 5 times larger than predicted by density functional theory. | Session 81: Spectroscopies of Topological Systems |
| 1009 | Directly photoexcited Dirac and Weyl fermions in ZrSiS and NbAs | Kim, Jaehun; Weber, Christopher; Schoop, Leslie; Parkin, Stuart S; Newby, Robert; Nateprov, Alexandr; Lotsch, Bettina; Krishna, M. Bala; Dani, Keshav; Bechtel, Hans; Arushanov, Ernest; Ali, Mazhar | We report ultrafast optical measurements of the Dirac line-node semimetal ZrSiS and the Weyl semimetal NbAs, using mid-infrared pump photons from 86 meV to 500 meV to directly excite Dirac and Weyl fermions within the linearly-dispersing bands. | Session 81: Spectroscopies of Topological Systems |
| 1010 | Symmetry protected band crossings of spin-orbit coupled surface states of NbGeSb | Markovi?, Igor; Clark, Oliver; Mazzola, Federico; Watson, Matthew; Murgatroyd, Philip; Dyer, Matthew; Hooley, Christopher; Alaria, Jonathan; King, Philip | We study the surface electronic structure of NbGeSb (isostructural to ZrSiS) using spin- and angle-resolved photoemission spectroscopy (ARPES) and density-functional theory (DFT). | Session 81: Spectroscopies of Topological Systems |
| 1011 | Non-Hermitian Hopf-Link Exceptional Line Semimetals | Zhesen, Yang; Hu, Jiangping | We study a new class of non-Hermitian topological phases in three dimension, where the topological robust band degeneracies are Hopf-link exceptional lines. | Session 81: Spectroscopies of Topological Systems |
| 1012 | Fragility of Fermi arcs in Dirac semimetals | Wu, Yun; Jo, Na Hyun; Wang, Lin-Lin; Schmidt, Connor; Neilson, Kathryn; Schrunk, Benjamin; Swatek, Przemyslaw; Eaton, Andrew; Bud’ko, Sergey; Canfield, Paul; Kaminski, Adam | We use tunable, vacuum ultraviolet laser-based angle-resolved photoemission spectroscopy and density functional theory calculations to study the electronic properties of Dirac semimetal candidate PtBi 2. | Session 81: Spectroscopies of Topological Systems |
| 1013 | ARPES study on the electronic structure of VTe2 with double zigzag chains | Natsuki, Mitsuishi; Sugita, Yusuke; Bahramy, Saeed; Kamitani, Manabu; Sonobe, Tatsuya; Sakano, Masato; Shimojima, Takahiro; Horiba, Koji; Kumigashira, Hiroshi; Taguchi, Kazuaki; Miyamoto, Kouji; Okuda, Taichi; Ishiwata, Shintaro; Motome, Yukitoshi; Ishizaka, Kyoko | In this talk, we report on the peculiar modification of the electronic structures via the 1 T-1 T� phase transition clarified by utilizing angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations. | Session 81: Spectroscopies of Topological Systems |
| 1014 | New class of Chiral topological nodes in transition metal silicide CoSi | Rao, Zhicheng | Here, we will report that two types of new chiral nodes are revealed by using angel-resolved photoemission spectroscopy in transition metal silicide CoSi. | Session 81: Spectroscopies of Topological Systems |
| 1015 | Cyclotron antiresonance in the topological insulator Bi2Te3 studied in Voigt geometry | Dordevic, Sasa; Lei, Hechang; Petrovic, Cedomir; Moon, Seongphill; Smirnov, Dmitry | We have previously observed cyclotron antiresonance in a canonical 3D topological insulator Bi 2Te 3 in Faraday geometry. | Session 81: Spectroscopies of Topological Systems |
| 1016 | Observation of Quasi-one-dimensional Edge State in ZrTe5 by Angle-resolved Photoemission Spectroscopy | Qian, Dong; Zhu, Fengfeng; Jiang, Wenxiang | Observation of Quasi-one-dimensional Edge State in ZrTe5 by Angle-resolved Photoemission Spectroscopy | Session 81: Spectroscopies of Topological Systems |
| 1017 | Topological Insulator Surface States for Spintronics | MacDonald, Allan | I will discuss theories of the closely related anomalous Hall, spin Hall, spin-orbit torque, magneto-resistance, and spin-pumping effects in isolated TI thin films, and in TI thin films proximity coupled to conducting and insulating ferromagnets and antiferromagnets. | Session 82: Topological Spintronics |
| 1018 | Magnetic Topological Insulator Heterostructures: From Axion Physics to the Topological Hall Effect | Chang, Cui-Zu | In heterostructures with the same magnetic doping, we observed a crossover from the QAH to topological Hall (TH) effects. | Session 82: Topological Spintronics |
| 1019 | Dirac-Surface-State Modulated Spin Dynamics in a Ferrimagnetic Insulator at Room Temperature | Shi, Jing | In this work, we demonstrate dramatically modified spin dynamics of MI by the spin-momentum locked Dirac surface states of the adjacent TI. | Session 82: Topological Spintronics |
| 1020 | Discovery of quantum confinement effect in sputtered topological insultor films and observation of room-temperature high spin�orbit torque | DC, Mahendra; grass, roberto; Chen, Junyang; Jamali, Mahdi; Hickey, Danielle; zhang, Delin; zhao, zhengyang; Li, hongshi; Quarterman, Patrick; Lv, Yang; li, mo; Manchon, Aurelien; Mkhoyan, K.; Low, Tony; Wang, Jianping | In this talk, we will report and discuss the experimental demonstration and first-principles calcuation of quantum confinement in topological insulator. | Session 82: Topological Spintronics |
| 1021 | Exploring Non-Trivial Nature of Topological Surface States in SmB6 | Wu, Mingzhong; Liu, Tao; Li, Yufan; Gu, Lei; Ding, Junjia; Chang, Houchen; Janantha, Praveen; Kalinikos, Boris; Novosad, Valentyn; Hoffmann, Axel; Wu, Ruqian; Chien, Chia-Ling | In this talk I will report our recent work on the use of spin pumping to study the non-trivial feature of the TSS in SmB6 [1]. | Session 82: Topological Spintronics |
| 1022 | Anomaly manifestations in topological insulator surfaces with strong correlations and disorder | Kimchi, Itamar; Chou, Yang-Zhi; Nandkishore, Rahul; Hermele, Michael; Radzihovsky, Leo | Here we address this interplay and show that it can lead to a type of localized surface state, even while the disorder ensemble preserves all symmetries. | Session 83: Theory of Topological Phases |
| 1023 | Free and Interacting SRE Phases of Fermions: Beyond the Ten-Fold Way | Chen, Yu-An; Kapustin, Anton; Turzillo, Alex; You, Minyoung | In particular, in dimension zero and one we describe precisely which SPT phases can be realized by free fermions. | Session 83: Theory of Topological Phases |
| 1024 | Emergent Dirac fermions in Composite-Fermi-Liquids. | Wang, Jie; Rezayi, Edward; Haldane, Frederick D | In this talk, we numerically examined the Berry phase associated with transporting one composite fermion around the Fermi sea at filling 1/2 and 1/4. | Session 83: Theory of Topological Phases |
| 1025 | Fragile topological phases in interacting systems | Else, Dominic; Po, Hoi Chun; Watanabe, Haruki | In this work, we show that fragile topology is a general concept prevailing beyond systems of noninteracting electrons. | Session 83: Theory of Topological Phases |
| 1026 | Gapped boundary theory of the twisted gauge theory model of three-dimensional topological orders | Wang, Hongyu; Li, Yingcheng; Hu, Yuting; Wan, Yidun | We extend the twisted gauge theory model of topological orders in three spatial dimensions to the case where the three spaces have two dimensional boundaries. | Session 83: Theory of Topological Phases |
| 1027 | SU(3) trimer resonating-valence-bond state on the square lattice | Dong, Xiaoyu; Chen, Ji-Yao; Tu, Hong-Hao | We propose and study an SU(3) trimer resonating-valence-bond (tRVB) state with C4v point- group symmetry on the square lattice. | Session 83: Theory of Topological Phases |
| 1028 | Quantum phase transitions between gapped topological phases: a percolation approach | Dai, Xin; Khalid, Saad; Gruzberg, Ilya; Lu, Yuanming | We study continuous quantum phase transitions between two gapped topological orders, where a gapped boundary exists at the interface of the two phases. | Session 83: Theory of Topological Phases |
| 1029 | Anyon exclusions statistics on surfaces with gapped boundaries | Li, Yingcheng; Wan, Yidun; Wang, Hongyu; Hu, Yuting | In this paper, we propose an extended anyon exclusion statistics on surfaces with gapped boundaries, introducing mutual exclusion statistics between anyons as well as the boundary components. | Session 83: Theory of Topological Phases |
| 1030 | Lattice model constructions for gapless domain walls between topological phases | Bao, Chenfeng; Yang, Shuo; Wang, Chenjie; Gu, Zhengcheng | By taking the advantage of the systematic classification and construction of twisted gauge models using group cohomology theory, we systematically construct general lattice models to realize gapless domain walls for arbitrary finite symmetry group G. | Session 83: Theory of Topological Phases |
| 1031 | Effect of Electron-Phonon Interactions on Dirac Fermions | Zhang, Yuxi; Batrouni, George; Chiu, Wei-ting; Costa, Natanael; Guo, Huaiming; Scalettar, Richard | We use determinant quantum Monte Carlo (DQMC) to study the Holstein model on Honeycomb lattice and pi-flux lattice and explore the role of electron-phonon interactions on Dirac fermions. | Session 83: Theory of Topological Phases |
| 1032 | Charge-Density-Wave Transitions of Dirac Fermions Coupled to Phonons | Chen, Chuang; Xu, Xiao Yan; Meng, Zi Yang; Hohenadler, Martin | Our findings motivate experimental efforts to identify or engineer Dirac systems with sufficiently strong and tunable electron-phonon coupling. | Session 83: Theory of Topological Phases |
| 1033 | Diagnosing fractionalization and anyonic statistics in magnetic insulators via noise magnetometry with spin qubits | Chatterjee, Shubhayu; Rodriguez Nieva, Joaquin; Demler, Eugene | We propose that single spin qubits, which interact directly with the low-energy excitations of magnetic insulators, can be used as a diagnostic of magnetic ground states. | Session 83: Theory of Topological Phases |
| 1034 | Chiral Tricritical Point: A New Universality Class in Dirac Systems | Yin, Shuai; Jian, Shao-Kai; Yao, Hong | In this Letter, we study a model in which a tricritical Ising model is coupled to massless Dirac fermions. | Session 83: Theory of Topological Phases |
| 1035 | Hierarchy of Exchange Interactions in the Triangular-Lattice Spin Liquid YbMgGaO4 | Mahmood, Fahad; Zhang, Xinshu; Daum, Marcus; Dun, Zhiling; Paddison, Joseph; Laurita, Nicholas; Hong, Tao; Zhou, Haidong; Armitage, Peter; Mourigal, Martin | This work establishes the hierarchy of exchange interactions in YbMgGaO 4 from high-field data alone and thus strongly constrains possible mechanisms responsible for the observed spin-liquid phenomenology. | Session 84: Triangular Lattices |
| 1036 | Hidden order and its quantum excitations in the triangular-lattice magnet TmMgGaO4 | Shen, Yao; Liu, Changle; Qin, Yayuan; Shen, Shoudong; Li, Yaodong; Bewley, Robert; Schneidewind, Astrid; Chen, Gang; Zhao, Jun | Here we combine neutron scattering and thermodynamic probes to study the newly discovered rare-earth triangular-lattice magnet TmMgGaO 4. | Session 84: Triangular Lattices |
| 1037 | Investigating the Dynamic Magnetic Properties of Triangular Antiferromagnet YbZnGaO4 | Steinhardt, William; Dissanayake, Sachith; Shi, Zhenzhong; Butch, Nicholas; Graf, David; Liu, Yaohua; Lu, Hongcheng; Marjerrison, Casey; Haravifard, Sara | In this talk we present results from our recent field-dependent single-crystal diffuse and inelastic neutron scattering experiments, as well as thermal- and magneto-transport measurements performed on YbZnGaO4. | Session 84: Triangular Lattices |
| 1038 | Elastic and Inelastic Neutron Scattering Study of the Triangular Lattice Ising Antiferromagnet TmMgGaO4 | Daum, Marcus; Dun, Zhiling; Zhou, Haidong; Mourigal, Martin | In this talk, I will present recent neutron scattering results on single-crystals of TmMgGaO 4 that elucidate the temperature and magnetic field dependence of spin correlations in that material. | Session 84: Triangular Lattices |
| 1039 | Gapless chiral spin liquid in spin-1/2 triangular Heisenberg model | Gong, Shoushu; Lee, Mac; Sheng, Donna | We study the ground state of spin-1/2 triangular-lattice antiferromagnet with first- (J1), second- (J2), and third-neighbor (J3) interactions, using large-scale density matrix renormalization group on cylinder geometry. | Session 84: Triangular Lattices |
| 1040 | Anisotropic-exchange magnets on a triangular lattice: dual spin liquids | Chernyshev, Alexander; Maksimov, Pavel; Zhu, Zhenyue; White, Steven | In our present DMRG study, we do confirm existence of this dual spin-liquid phase. | Session 84: Triangular Lattices |
| 1041 | Anisotropic-exchange magnets on a triangular lattice: spin waves and accidental degeneracies | Maksimov, Pavel; Zhu, Zhenyue; White, Steven; Chernyshev, Alexander | We present an overview of the phase diagram, spin-wave excitations, and finite-temperature transitions of the anisotropic-exchange magnets on a nearest-neighbor triangular lattice. | Session 84: Triangular Lattices |
| 1042 | Pressure-tuning of the quantum spin Hamiltonian of a triangular lattice antiferromagnet | Zvyagin, Sergei; Graf, David; Sakurai, Takahiro; Kimura, Shojiro; Nojiri, Hiroyuki; Wosnitza, Joachim; Ohta, Hitoshi; Ono, Toshio; Tanaka, Hidekazu | Here, we demonstrate an alternative approach where, instead of the chemical composition, the spin Hamiltonian of a triangular lattice antiferromagnet is tuned by hydrostatic pressure. | Session 84: Triangular Lattices |
| 1043 | Partial Magnetic Order in the Anisotropic Triangular Lattice System CeCd3As3 | Dunsiger, Sarah; Akintola, Kolawole; Cote, Andre; Fang, Alex; Gheidi, Shayan; Lee, Jeonghun; Sundar, Shyam; Mun, Eundeok; Sonier, Jeff | We report a muon spin relaxation investigation of the low temperature partially ordered phase and associated spin fluctuations of this material. | Session 84: Triangular Lattices |
| 1044 | Frustrated antiferromagnetic(AFM) order in CeCd3As3 | Avers, Keenan; Movshovich, Roman; Halperin, William; Thompson, Joe; Rosa, Priscila | Instead we observed an excess of entropy at the lowest temperatures measured. | Session 84: Triangular Lattices |
| 1045 | Magnon topology and thermal Hall effect in trimerized triangular lattice antiferromagnet | Kim, Kyungsu; Lee, Ki; Chung, Suk Bum; Park, Je-Guen | In this work, we study the band topology and thermal Hall effect of triangular lattice antiferromagnet with the nearest-neighbor exchange and external field using linear spinwave theory. | Session 84: Triangular Lattices |
| 1046 | Selective measurements of intertwined multipolar orders: Non-Kramers doublets on a triangular lattice | Liu, Changle; Li, Yaodong; Chen, Gang | Motivated by the rapid experimental progress on the spin-orbit-coupled Mott insulators, we propose and study a generic spin model that describes the interaction between the non-Kramers doublets on a triangular lattice and is relevant for triangular lattice rare-earth magnets. | Session 84: Triangular Lattices |
| 1047 | Physical properties of the trigonal binary compound Nd2O3 | Sala, Gabriele; Stone, Matthew; Rai, Binod; May, Andrew; Dela Cruz, Clarina; Ehlers, Georg; Garlea, Vasile; Lumsden, Mark; Suriya Arachchige, Hasitha; Fanelli, Victor; Mandrus, David; Christianson, Andy | Here we study the physical properties of Nd 2O 3 with neutron diffraction, inelastic neutron scattering, heat capacity, and magnetic susceptibility measurements. | Session 84: Triangular Lattices |
| 1048 | Observation of topological edge modes via smart patterning | Apigo, David; Qian, Kai; Prodan, Camelia; Prodan, Emil | In this talk we present a novel quasi-periodic system supporting topological edge modes made of magnetically coupled mechanical spinners. | Session 85: Novel Topological Systems |
| 1049 | Electric tuning of topological properties in a symmetric broken gap quantum well | De Campos, Tiago; A. Toloza Sandoval, Marcelo; Diago-Cisneros, Leovildo; Sipahi, Guilherme | In this work, we study the inverted band structure of a symmetric GaSb/InAs QWs under the influence of an electric field applied along the growth direction, using the 8-band k.p model and the envelope function approximation. | Session 85: Novel Topological Systems |
| 1050 | In-situ Fermi level tuning of semiconductor thin films on graphene during scanning tunneling microscopy studies | Maximenko, Yulia; Wang, Zhenyu; Steiner, Charles; Iaia, Davide; Madhavan, Vidya | Here, we report the design of a robust back-gating device for a versatile thin film growth and subsequent E F tuning inside STM. | Session 85: Novel Topological Systems |
| 1051 | Thermodynamic probe of the bulk gap in the quantum spin Hall insulator 1T’-WTe2 | De La Barrera, Sergio; Cao, Qingrui; Yan, Jiaqiang; Hunt, Benjamin | Here, we probe the thermodynamic properties of fully-encapsulated single-layer 1T’-WTe2 using low-temperature capacitance to illuminate the discussion of this gap and its single-particle or interaction-driven origin. | Session 85: Novel Topological Systems |
| 1052 | Quantifying charge�to�spin conversion efficiency in magnetically�doped topological insulator heterostructures | Pan, Quanjun; Che, Xiaoyu; Shao, Qiming; Fan, Yabin; Pan, Lei; Wu, Hao; Zhang, Peng; Montazeri, Mohammad; Wang, Kang | Quantifying charge�to�spin conversion efficiency in magnetically�doped topological insulator heterostructures | Session 85: Novel Topological Systems |
| 1053 | Investigating the ferromagnetism-induced surface gap formation and effects of optical excitations in Cr-doped topological insulators (TIs) | Llanos, Adrian; Chen, Chien-Chang; Teague, Marcus; Zhang, Peng; Pan, Lei; Murata, Koichi; Wang, Kang; Yeh, Nai-Chang | In the STS studies on the bilayer system, a surface gap ? opens up at T C 2D ~ 180 K, much higher than the bulk Curie temperature T C 3D ~ 35 K determined from the onset of AHE. | Session 85: Novel Topological Systems |
| 1054 | Interfaces and superlattices of the topological insulator Bi2Se3 | Aryal, Niraj; Manousakis, Efstratios | Here, we propose different ways of manipulating the position of the energy of the surface Dirac states in the topological insulator (TI) Bi 2Se 3 relative to the bulk Fermi level, their linearity, their location, etc., by making contact with different materials. | Session 85: Novel Topological Systems |
| 1055 | Microwave Impedance Microscopy of WTe2 | Kahn, Joshua; Shi, Yanmeng; Fei, Zaiyao; Francisco, Brian; Niu, Ben; Xu, Xiaodong; Cui, Yongtao; Cobden, David | Using MIM we observe that the edge is gapless and the edge conduction path conforms to microscopic corners and cracks in the edge and features internal to the monolayer flake. | Session 85: Novel Topological Systems |
| 1056 | Topological Classification Table Implemented with Classical Passive Meta-Materials | Barlas, Yafis | In this talk, we introduce a map which generates classical analogs for all entries of the classification table, using only passive elements. | Session 85: Novel Topological Systems |
| 1057 | Non-Local Spin Transport in Topological Insulator Nanowires | Tse, Pok Lam; Lu, Grace | Non-Local Spin Transport in Topological Insulator Nanowires | Session 85: Novel Topological Systems |
| 1058 | Numerical signatures of topology in disordered insulators | Reiss, Dominic; Brown, Albert; Harper, Fenner; Liu, Xu; Roy, Rahul | We investigate a number of numerical signatures which distinguish the topological and trivial phases of disordered insulators. In particular, we consider three dimensional systems with time-reversal symmetry (class AII) and numerically construct a set of maximally commuting spin-like operators using local unitary circuits. | Session 85: Novel Topological Systems |
| 1059 | Scattering from Monolayer and Bilayer Step Edges on Topological Sb(111) | Mahadevan, Aditya; Zhang, Haimei; Ge, Jianfeng; He, Yang; Soumyanarayanan, Anjan; Fang, Shiang; Hoffman, Jennifer | Here we use scanning tunneling microscopy (STM) to image the cleaved surface of Sb(111). | Session 85: Novel Topological Systems |
| 1060 | Quantized anomalous Hall conductance in a bulk dilute Mn-doped topological insulator Bi2Te3 at high temperatures | Deng, Haiming; Chen, Zhiyi; Zhao, Shihua; Turkel, Simon; Pasupathy, Abhay; Plucinski, Lukasz; Konczykowski, Marcin; Wolos, Agnieszka; Park, Kyungwha; Krusin-Elbaum, Lia | Here we report achieving Hall conductance quantization in the Kelvin range in dilute (2%) Mn-doped thick (50-300 nm) single crystals of Bi 2Te 3 by taking a different approach to tune the Fermi level E F into the Dirac gap. | Session 85: Novel Topological Systems |
| 1061 | In gap states in topological Kondo insulators: Optical properties evidence | Franco Pe�aloza, Roberto; Ramos, Edwin; Silva Valencia, Jereson; Figueira Da Silva, Marcos | Previously we shows that the anti ferro-magnetic correlations plays an important role on the gap opening of the topological Kondo insulators (1); in this work we discuss the manifestation of the in gap states in the ARPES and PES results, our results for the different symmetry points are similar to the reported for SmB6 (2). | Session 85: Novel Topological Systems |
| 1062 | Engineering topological superlattices : Phase diagrams and electronic properties | Jain, Deepti; Shibayev, Pavel; Koenig, Elio; Salehi, Maryam; Moon, Jisoo | We have studied a topological superlattice composed of topological insulator Bi2Se3, and normal insulator In2Se3 of different thickness. | Session 85: Novel Topological Systems |
| 1063 | Morphological Evolution and Hysteresis in External Electric Field induced Instability in Viscoelastic Thin Films | Ranga, Sheetal; Mukherjee, Rabibrata | We report here complete bonding-debonding sequence and morphological transformation. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1064 | Transition from spin dewetted droplets to continuous film in a semi-crystalline Polyethylene Oxide thin film | PAL, SOUMYAMOULI; Mukherjee, Rabibrata | We investigated the effects of RPM variation during spin coating on the transition of spin-dewetted morphologies from droplets at lower RPM to continuous film at higher RPM. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1065 | Influence of residual stress on dewetted morphology of spin coated polymer thin films | PATRA, ALOK; Das, Anuja; Mukherjee, Rabibrata | We report the dependence of dewetted morphology of polymer thin film on residual stress generated during spin coating. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1066 | Structure and dynamics of pseudo-partial wetting precursor films | Verneuil, Emilie; Lequeux, Francois; Montes, Helene; Schune, Claire; Yonger, Marc | We report for the first time systematic observations of droplets and their precursor films of high polarisability polymer melts on silica, which lead to a pseudo-partial wetting situation: at equilibrium, the droplet coexists with its film, in which the Derjaguin pressure is conjoining. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1067 | Theoretical insights into the hydrophobicity of low index CeO2 surfaces | Fronzi, Marco; Assadi, Hussein; Hanaor, Dorian | Since wettability measurements are extremely sensitive to experimental conditions, we propose a general approach to obtain contact angles between water and ceria surfaces of specified orientations based on density functional calculations. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1068 | Inferring Boundary Viscosity Values from Shear Deformation of Molecularly Thin Films | Makwana, Kishan; Troian, Sandra | Here we present finite element simulations of the liquid deformation process to evaluate help assess the influences of different mechanisms. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1069 | Dependency of ice adhesion strength on surface wettability and roughness | Machado de Oliveira, Marina; Kattel, Subash; Murphy, Joseph; Ackerman, John; Rice, William; Alvarado, Vladimir | To this end, we conducted detailed surface roughness maps and novel dynamic contact angle measurements on stainless steel, aluminum, and non-metallic materials. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1070 | Rapid Detection of Thalassaemia Carriers by Image Analysis of Dried Patterns of Blood and Plasma Droplets | Ayushman, Manish; Mukhopadhyay, Manikuntala; DasGupta, Sunando | Rapid Detection of Thalassaemia Carriers by Image Analysis of Dried Patterns of Blood and Plasma Droplets | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1071 | Creeping of Salt Solutions: Influence of Surfactants | Qazi, Mohsin; Salim, Herish; Jambon-Puillet, Etienne; Bonn, Daniel; Shahidzadeh, Noushine | We present new experiments using a custom-made setup, that allows to reproduce the creeping phenomenon in the laboratory and study the influence of environmental conditions and additives. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1072 | Transient dynamics of viscous drop impact on immiscible liquid bath: A holistic analysis | Trinavee, Kumari; Misra, Sirshendu; Gunda, Naga Siva Kumar; Mitra, Sushanta | In this work, we present our holistic approach coupling experimental observation with theoretical and numerical validation to better understand the dynamics of droplet impact for an oil droplet impinged on a water pool. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1073 | Investigation of the interaction between graphene membranes suspended and liquid by nano-infrared spectroscopy | Meireles, Leonel; Barcelos, Ingrid; Ferrari, Gustavo; Neves, Paulo Alexandre; Freitas, Raul; Lacerda, Rodrigo | Here we report the development of a robust fluidic platform specifically designed for nanoscale resolved infrared spectroscopy of biomaterials in liquid environments. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1074 | Underliquid wetting behavior of graphene: Is the hypothesis of wetting transparency valid? | Misra, Sirshendu; Gunda, Naga Siva Kumar; Mitra, Sushanta | Here we attempt to understand the wetting characteristics of a monolayer of graphene coated on a glass substrate when submerged in a liquid bath. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1075 | Isotherm kinetics and rapid sorption activity of mesoporous vdW 2D sheets decorated with magnetic nanobeads | Talukdar, Meenakshi; Deb, Pritam | Isotherm kinetics and rapid sorption activity of mesoporous vdW 2D sheets decorated with magnetic nanobeads | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1076 | Effect of Catalysis-clustering on Gas-sensing Performance | Tit, Nacir; Ali, Muhammad; Shaheen, Alaa | We present a theoretical investigation, based on a combined of density-functional theory (DFT) and non-equilibrium Green�s-functional (NEGF) formalism, to study the effect of catalysis-clustering on the sensor response. | Session 86: Thin Film Wetting and Solid-Liquid Interfaces |
| 1077 | Three observations on the ARPES data of the cuprate superconductors – what the AF spin fluctuation can do and what it cannot Tao Li Renmin University of China, Beijing, China | Li, Tao | We discuss the origin of the pseudogap phenomena in the cuprate superconductors from the perspective of the spin-Fermion model. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1078 | Temperature Dependence of the Anisotropic Gap in YBa2Cu307 | Zhao, Guang-Lin | We present the results of first-principles calculations for the electronic structure, e-ph interaction, and the temperature dependence of the anisotropic superconducting gap in YBCO. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1079 | Study of the interplay between pseudogap and antiferromagnetic correlations in electron-doped cuprates via TR-ARPES | Zonno, Marta; Boschini, Fabio; Razzoli, Elia; Michiardi, Matteo; Day, Ryan; Zwartsenberg, Berend; Nigge, Pascal; Da Silva Neto, Eduardo; Erb, Andreas; Zhdanovich, Sergey; Levy, Giorgio; Giannetti, Claudio; Jones, David; Damascelli, Andrea | In particular, by studying the temperature-dependence of the PG spectral features, we demonstrate the direct relation between PG and spin correlation length and provide evidence for the primary role of AF correlations in determining the PG in electron-doped cuprates. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1080 | Strong electron-phonon coupling in Hg1201 | Yi, Ming; Nayak, Jayita; Anderson, Zachary; Tang, Yang; Greven, Martin; Birgeneau, Robert; Vishik, Inna | We present doping-dependent angle-resolved photoemission spectroscopy (ARPES) studies on HgBa 2CuO 4+? (Hg1201), a single-layer cuprate with higher T c, max, with a focus on spectral features which differ from more commonly studied single layer cuprates with lower T c, max. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1081 | Micro-ARPES study on the cuprate superconductor YBCO | Iwasawa, Hideaki; Schr�ter, Niels; Masui, Takahiko; Tajima, Setsuko; Kim, Timur; Hoesch, Moritz | By combining the real-space and electronic information, we propose a simple model to explain the termination-dependent surface electronic reconstruction. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1082 | Hidden Spin-Momentum Texture in High Tc Cuprate Superconductor | Lin, Chiu-Yun; Gotlieb, Kenneth; Serbyn, Maksym; Zhang, Wentao; Smallwood, Christopher; Jozwiak, Chris; Eisaki, Hiroshi; Vishwanath, Ashvin; Hussain, Zahid; Lanzara, Alessandra | Hidden Spin-Momentum Texture in High Tc Cuprate Superconductor | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1083 | Fermi Surface Topology and Energy Gap of Heavily Underdoped Bi2212 Studied by Laser ARPES | Gao, Qiang; Ai, Ping; Liu, Jing; Hu, Cheng; Liu, Guodong; Zhou, Xingjiang | Taking advantage of our high resolution laser-ARPES, we have systematically studied the Fermi surface topology, the energy gap and the many-body effects in these heavily underdoped Bi2212. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1084 | ARPES study of the phase diagram of superconducting BSCCO-2212 with in-situ control of surface doping | Drozdov, Ilya | I will present angle-resolved photoemission studies of Bi 2Sr 2CaCu 2O 8+? single crystals cleaved and annealed in ultra-high vacuum or in ozone to reduce or increase the doping on-demand. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1085 | Co-substitution effect on electronic structure of high-Tc cuprate superconductor, Bi2Sr2Ca(Cu1-xCox)2O8 | Miyashita, Takeo; Mansuer, Wumiti; Takita, Hitoshi; Kubo, Takuya; Ishizaka, Satoshi; Iwasawa, Hideaki; Schwier, Eike; Shimada, Kenya; Arita, Masashi; Numata, Yoshinori; Uto, Tatsuro; Matsuda, Azusa; Ino, Akihiro | Here, we report a high-resolution angel-resolved photoemission study of Bi 2Sr 2Ca(Cu 1-xCo x) 2O 8 by using ultraviolet laser and synchrotron radiation. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1086 | Deviation between magnetic quantum- and Lifshitz- critical point in electron doped cuprate Pr1-xLaCexCuO4-? | Song, Dongjoon; Lee, Suheon; Jung, Woobin; Park, Seung-Ryoung; Ishida, Shigeyuki; Yoshida, Yoshiyuki; Eisaki, Hiroshi; Choi, Kwang-Yong; Kim, Changyoung | In this talk, we will present the magnetic and electronic phase diagram of electron doped cuprate Pr 1-xLaCe xCuO 4 -?, and discuss the implication of our results on the generic phase diagram of high- Tc superconductors. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1087 | Doping Evolution of Energy Gaps in Bi2Sr2CaCu2O8+? superconductors studied by Laser-based ARPES | Ai, Ping; Gao, Qiang; Jing, Liu; Huang, Jianwei; Ding, Ying; Liu, Guodong; Gu, Genda; Zhou, Xingjiang | With high instrumental resolution (~1 meV) and wide coverage of the momentum space, we will report detailed doping, momentum and temperature dependences of the energy gap (superconducting gap and pseudogap) in Bi2212. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1088 | Doping evolution of kink from the contionously doped cuprate surface | Zhong, Yigui; Guan, Jianyu; Zhao, Jin; Zhang, Jianhao; Weng, Zheng-Yu; Gu, Genda; Sun, Yujie; Ding, Hong | We present the doping evolution of the kink dispersion at node by in-situ ARPES measuring on a continuously doped surface of Bi2212 using our recently pronounced surface treating technique of ozone/vacuum annealing [1]. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1089 | Fermi surface reconstruction in electron-doped cuprates without antiferromagnetic long-range order | He, Junfeng; Rotundu, Costel; Scheurer, Mathias; He, Yu; Hashimoto, Makoto; Xu, Kejun; Wang, Yao; Huang, Edwin; Jia, Tao; Chen, Sudi; Moritz, Brian; Lu, Donghui; Lee, Young; Devereaux, Thomas; Shen, Zhixun | Here, we report angle-resolved photoemission (ARPES) evidence of FS reconstruction in optimal- and over-doped NCCO. | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1090 | In situ angle-resolved photoemission spectroscopy measurements of cuprate thin films grown by molecular beam epitaxy | Chen, Zhuoyu; Rebec, Slavko; Jia, Tao; Hashimoto, Makoto; Lu, Donghui; Shen, Zhixun; Moore, Robert | In situ angle-resolved photoemission spectroscopy measurements of cuprate thin films grown by molecular beam epitaxy | Session 87: Superconductivity: Copper Oxide – ARPES |
| 1091 | Determination of the superconducting gap sign by the phase referenced method: successful practice in cuprate and several iron based superconductors | Wen, Hai-Hu | Following this idea we have successfully detected the gap sign reversal in several iron based superconductors with and without the hole pockets. | Session 88: New Developments in STM on Surfaces of Unconventional Superconductors and Related Systems |
| 1092 | Pairing gap symmetry in optimally doped NaFeAs | Pasupathy, Abhay | Pairing gap symmetry in optimally doped NaFeAs | Session 88: New Developments in STM on Surfaces of Unconventional Superconductors and Related Systems |
| 1093 | Lessons from modeling of tunneling spectroscopy on FeSe | Andersen, Brian | In this talk, I will focus on two aspects of the theoretical study of tunneling spectroscopy on unconventional superconductors, 1) the physics of disorder generated local order, and 2) the understanding of recent scanning tunneling experiments mapping out the detailed spectroscopic features of FeSe by the Davis group at Cornell University. | Session 88: New Developments in STM on Surfaces of Unconventional Superconductors and Related Systems |
| 1094 | Superconductivity from quantum fluctuations of itinerant quantum critical points | Hao, Yunchao; Qi, Yang; Sun, Kai | In this study, we investigate these systems utilizing analytic approach. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1095 | Characterizing the quantum critical point between a Dirac spin liquid and an antiferromagnet | Dupuis, Eric; Witczak-Krempa, William | We describe a transition to a coplanar antiferromagnetic (AFM) phase by coupling the spinons to a vectorial bosonic order parameter. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1096 | Quantum Criticality in the Two-Dimensional Periodic Anderson Model | Schaefer, Thomas; Katanin, Andrey; Kitatani, Motoharu; Toschi, Alessandro; Held, Karsten | In this talk, I will present a step forward by analyzing results from the dynamical vertex approximation, a cutting-edge quantum field theoretical method including temporal as well as spatial correlations. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1097 | Quantum critical scaling beyond Ginzburg-Laudau-Wilson paradigm in heavy-fermion metals | Chang, Yung-Yeh; Kirchner, Stefan; Chung, Chung-Hou | A novel Bose-Fermi effective field theory is constructed beyond our large-N saddle-point solution. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1098 | Exact non-linear I-V curve near two-channel Kondo-Luttinger quantum critical point | Lin, Chao-Yun; Chang, Yung-Yeh; Rylands, Colin; Andrei, Natan; Chung, Chung-Hou | In this paper, we address this long-standing issue via bosonization-refermionization approach near 2-channel Kondo state. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1099 | Thermodynamic properties of 3D plaquette antiferromagnet | Sun, Guang Yu; Ma, Nusen; Sandvik, Anders; Meng, Zi Yang | We design a 3D checker-board J-Q model to capture phase transitions between a plaquette-singlet solid with lattice translational symmetry breaking to a 3D Neel phase with spin rotational symmetry breaking. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1100 | Emergence of non-Fermi liquid dynamics through nonlocal correlations in an interacting disordered system | Sen, Sudeshna; Vidhyadhiraja, N S; Jarrell, Mark | We provide strong evidence for a quantum critical point (QCP) associated with the destruction of Kondo screening in the Anderson-Hubbard model for interacting electrons with quenched disorder. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1101 | U(N)/U(m)U(N-m) nonlinear sigma model: critical behavior and a physical realization | Wang, Da | With determinant quantum Monte Carlo simulations of the half-filled SU(6) Hubbard model on the square lattice, we have found strong evidences of a continuous quantum phase transition from the antiferromagnetic to valence bond solid states as U increases. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1102 | Phase transitions in the “easy plane” JQ model | Desai, Nisheeta; Kaul, Ribhu | We study the JQ model on the square lattice after adding to it �easy plane� terms that explicitly break the SU(2) symmetry of the original model. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1103 | Phase diagram of effective model for twisted bilayer graphene at particle-hole symmetric point | Liao, Yuan Da; Xu, Xiao Yan; Meng, Zi Yang | We study an effective extended Hubbard model on the honeycomb lattice with two orbitals per site at the particle-hole symmetry filling. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1104 | Renormalization group analysis of phase transitions in the two dimensional Majorana-Hubbard model | Wamer, Kyle; Affleck, Ian | We analyze these phase transitions using a modified ?-expansion, confirming the previous conclusions. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1105 | Imaginary-spin-bond order induced by a magnetic field | Ye, Mengxing; Chubukov, Andrey | We show that a 2D fermion system with well separated electron and hole pockets may develop a time-reversal symmetric directional imaginary-spin-bond order. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1106 | Nonthermal states in nonintegrable magnetic models | Robinson, Neil; James, Andrew; Brandino, Giuseppe; Konik, Robert | We show that nonthermal states, extending far into the many-body spectrum, can arise in simple magnetic (continuum and lattice) models that exhibit confinement and the associated formation of “meson-like” excitations. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1107 | Spin echoes in disordered Hubbard models | Biadsy, Tasneem; Sagi, Yoav; Lindner, Netanel | We study spin-echo signals in disordered Hubbard models. | Session 89: Quantum Phase Stability and Criticality: Theory |
| 1108 | Doping-dependent precursor charge density wave correlations in La2-xBaxCuO4 | Miao, Hu; Ghiringhelli, Giacomo; Dean, Mark | Recently using resonant inelastic x-ray scattering (RIXS), we discovered, in La2-xBaxCuO4 x=0.125, precursor charge density wave (CDW) correlations that exist above the CDW transition temperature and observed that its wavevector varies with temperature and becomes unlocked from the spin wavevector [1]. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1109 | Temperature Dependence of CDW phenomena in optimally-doped Bi2212 via RIXS | Lee, Wei-Sheng; Hepting, Matthias; Li, Jiemin; Nag, Abhishek; Walters, Andrew; Garcia-Fernandez, Mirian; Hashimoto, Makoto; Yoshida, Yoshiyuki; Eisaki, Hiroshi; Moritz, Brian; Huang, Edwin; Shen, Zhixun; Zhou, Kejin; Devereaux, Thomas | Here we utilize high-resolution resonant inelastic x-ray scattering (RIXS) at the Cu L-edge to investigate the CDW in optimally-doped Bi2212. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1110 | Orbital symmetries of charge density wave order in YBa2Cu3O6+x | McMahon, Christopher; Achkar, Andrew; Da Silva Neto, Eduardo; Djianto, Isaiah; Menard, Jyler; He, Feizhou; Sutarto, Ronny; Comin, Riccardo; Liang, Ruixing; Bonn, Douglas; Hardy, Walter; Damascelli, Andrea; Hawthorn, David | Here, we revisit resonant x-ray scattering measurements at the Cu L edge of the CDW form factor in YBCO, utilizing a variation in the measurement geometry to provide enhanced sensitivity to the CDW orbital symmetry. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1111 | Ground states of striped cuprates at high magnetic fields (H) | Baity, Paul; Shi, Zhenzhong; Popovic, Dragana; Sasagawa, Takao | We will present our results and discuss the role of disorder, as well as the similarities to other 2D systems and materials with competing orders that undergo superconducting phase transitions. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1112 | Stripes and superconductivity in the two-dimensional Hubbard model | Chung, Chia-Min; Qin, Mingpu; Shi, Hao; Vitali, Ettore; Hubig, Claudius; Schollwoeck, Ulrich; White, Steven; Zhang, Shiwei | In this work we discuss the superconductivity in the stripes. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1113 | Temperature and field dependence of the intrinsic tunneling structure in overdoped Bi2Sr2CaCu2O8 | Benseman, Timothy; Cooper, John; Balakrishnan, Geetha | Here we present intrinsic tunneling data for mesa structures fabricated on three over- and optimally-doped Bi 2.15Sr 1.85CaCu 2O 8+? crystals, with 0.16�0.19 holes per CuO 2 unit, for a wide range of temperature ( T) and applied magnetic field ( H). | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1114 | Bosonic Mode in the Tunneling Spectra of Fe-based and Cuprate Superconductors | Zasadzinski, John; Samuelson, Noah; Lowell, Beverly; Iavarone, Maria | Bosonic Mode in the Tunneling Spectra of Fe-based and Cuprate Superconductors | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1115 | Can Short-Range CDW Order Cause the Fermi Surface Reconstruction in the Cuprates? | Gannot, Yuval; Kivelson, Steven | In this work, we derive a simple quantization rule appropriate for disordered CDWs and show that it involves a random Berry phase. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1116 | Visualizing the electronic structure of infinite-layer cuprate by scanning tunnelling spectroscopy | Zhong, Yong; Wang, Ruifeng; Dou, Ziyuan; Song, CanLi; Ma, Xucun; Xue, Qikun | Using oxide-MBE technique, we fabricate Sr 1-xLa xCuO 2+? films with different doping levels. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1117 | Real-Space Characterization of Charge Ordering in Epitaxial La2-xSrxCuO4 films | Wang, Yang; Zhong, Yong; Luo, Zhiling; Liao, Menghan; Wang, Ruifeng; Dou, Ziyuan; Zhang, Ding; Song, CanLi; Ma, Xucun; Xue, Qikun | For this, we present a detailed study of the doping dependent charge orderings in the canonical La 2-xSr xCuO 4 cuprate thin films. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1118 | Charge trapping and super-Poissonian noise centers in a cuprate superconductor | Bastiaans, Koen; Cho, Doohee; Benschop, Tjerk; Battisti, Irene; Chatzopoulos, Damianos; Huang, Yingkai; Golden, Mark; Dong, Quan; Jin, Yong; Zaanen, Jan; Allan, Milan | We present new insight into the mystery of highly anisotropic transport in the cuprates and how they can trap additional charges. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1119 | Towards the development of YBa2Cu3O7-based S-I-S tunneling Josephson junction device | Kandel, Hom; Li, Zhongrui; Chen, TarPin | Here, we present our work towards the development of the YBCO based S-I-S tunneling Josephson junction device by discussing growth, structure, and electrical transport properties of (110)-YBCO, various metals (M) doped PrBa 2(Cu 0.8M 0.2) 3O 7 (PBCMO) , and heterostructures of YBCO and PBCMO . | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1120 | Quantum Sensing of Layered Superconductor at the Nanoscale | Du, Chunhui; Xue, Ruolan; Ku, Mark; Zhao, Frank; Poccia, Nicola; Zhong, Ruidan; Watanabe, Kenji; Taniguchi, Takashi; Gu, Genda; Kim, Philip; Walsworth, Ronald; Yacoby, Amir | We introduce single spin magnetometry based on nitrogen-vacancy (NV) centers in diamond as a new platform to probe the microwave response of a two-dimensional layered high Tc superconductor Bi 2Sr 2CaCu 2O 8+x (BSCCO) flake at the nanoscale. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1121 | Emergent superconductivity upon disordering a charge density wave ground state | Banerjee, Anurag; Garg, Arti; Ghosal, Amit | We explore the interplay of a charge density wave (CDW) order and s-wave superconductivity in a disordered system. | Session 90: Superconductivity: Copper Oxide – Stripes, CDW and local probes |
| 1122 | Locating the missing superconducting electrons in overdoped cuprates | Armitage, Peter | Here, we combine time-domain THz spectroscopy with kHz range mutual inductance measurements on the same overdoped La 2-xSr xCuO4 films to determine both the superfluid and the uncondensed carrier density as a function of doping. | Session 91: New Experimental Developments in the Cuprates |
| 1123 | Density fluctuations in strange metals | Abbamonte, Peter | In this talk I will describe momentum-resolved EELS (M-EELS) measurements of several strange metals, notably Bi2Sr2CaCu2O8+x which is also a high-temperature superconductor. | Session 91: New Experimental Developments in the Cuprates |
| 1124 | Universal superconducting precursor in perovskite-based oxides | Pelc, Damjan; Anderson, Zachary; Yu, Biqiong; Leighton, Chris; Greven, Martin | We use nonlinear magnetic response � a probe that is uniquely sensitive to the superconducting precursor � to uncover remarkable universal behavior in these three distinct classes of oxide superconductors [1]. | Session 91: New Experimental Developments in the Cuprates |
| 1125 | NMR study of the effect of hydrostatic pressure on charge-density waves and superconductivity in YBa2Cu3Oy | Julien, Marc-Henri | We propose explanations for some of the conflicting conclusions drawn from different experiments and suggest that they may actually shed light on the CDW. | Session 91: New Experimental Developments in the Cuprates |
| 1126 | Uniaxial Pressure Control of Competing Orders in a High Temperature Superconductor | Le Tacon, Matthieu | Here, we report a high-resolution inelastic x-ray scattering study of the high-temperature superconductor YBa2Cu3O6.67 under uniaxial stress (1), and show that a three-dimensional long range-ordered CDW state can be induced by pressure along the a-axis, in the absence of magnetic fields. | Session 91: New Experimental Developments in the Cuprates |
| 1127 | Photoresponsive thin film based on photochromic diarylethene blended with thermoplastic elastomer: Structural and morphological analysis | LOUATI, Maroua; Barrau, Sophie; Tahon, Jean-Fran�ois; Aloise, St�phane; Takeshita, Michinori | Photoresponsive thin film based on photochromic diarylethene blended with thermoplastic elastomer: Structural and morphological analysis | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1128 | Singlet fission and exciton dynamics in vapor deposited rubrene films | Finton, Drew; DeJong, Elizabeth; Zoutenbier, Vincent; Biaggio, Ivan | Singlet fission and exciton dynamics in vapor deposited rubrene films | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1129 | Defect Engineering for Modulating the Trap States in Two-dimensional Photoconductor | Jiang, Jie; Ling, Chongyi; Xu, Tao; Wang, Wenhui; Niu, Xianghong; Zafar, Amina; Yan, Zhenzhong; Wang, Xiaomu; You, Yumeng; Sun, Litao; Lu, Junpeng; Wang, Jinlan; Ni, Zhenhua | Here, we demonstrate that the trap states in two-dimensional ReS 2 could be efficiently modulated by defect engineering through molecule decoration. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1130 | Photothermoelectric detection of gold oxide non-thermal decomposition and related studies | Wang, Xifan; Evans, Charlotte; Abbasi, Mahdiyeh; Natelson, Douglas | In this study, we report the detection of the decomposition of metastable gold oxide via open circuit photothermoelectric voltage detection on thin-film Au nanowire devices as a function of the position of an optical heat source. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1131 | Formation of gold nanoparticles by laser annealing and enhanced terahertz beam by plasmonics | Wu, Dong | In this presentation, we will report gold nanoparticles on a photoconductive antenna and substantial terahertz power enhancement by the plasmonics. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1132 | The Influence of Fractional Surface Coverage on Core-Core Separation in Monolayers of Thiol-Ligated Gold Nanoparticles | Reik, Morgan; Rice, Stuart; Lin, Binhua; Calabro, Melanie; Griesemer, Sean; Macfarland, Sophie | We demonstrate through Grazing Incidence X-Ray Diffraction and Transmission Electron Microscopy that the nanoparticle separation and correlation length of these films increases linearly with thiol concentration in solution, indicating that the bulk thiol is in equilibrium with thiol on the core surface. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1133 | Laser-induced Detuning of Quartz Crystal Microbalances in Adsorbing and Non-adsorbing Environments | Kenny, Samuel; Krim, Jacqueline | We report here an investigation of the response of a QCM to green laser light in vacuum, nitrogen, and ethanol gas. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1134 | Interferometric Measurements of High Quality Acoustic Microcavities (MCs) on Anisotropic Surfaces | Msall, Madeleine; Santos, Paulo | We use optical interferometry to measure the surface displacement patterns between pairs of interdigital transducers (IDTs) configured to form resonant MCs with Q ~ 1800. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1135 | Resonant Scattering as a Rapid and Site-Specific Spatiochemical Probe of Patterned Interfaces | Cordova, Isvar; Freychet, Guillaume; Chi, Christopher; Xu, Wei; Hexemer, Alexander; Wang, Cheng | In this presentation, we reveal a simple, yet powerful, patterning approach for sub-nm characterization that takes advantage of the physical processes intrinsic to small angle resonant X-ray scattering in order to 1) decouple the bulk from the interface scattering signal, 2) enhance the strength of the interfacial signal, and 3) collect a site-specific x-ray absorption spectra. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1136 | Effect of titanium adhesion layer on iridium thin film optical properties | Pfiester, Nicole; Stevens, Margaret; Vandervelde, Thomas; Grossklaus, Kevin | In this study, we report on the optical properties, crystal structures, and surface roughness of Ir thin films produced by dc magnetron sputtering. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1137 | Pattern formation on a bubble: Capillary waves on surfactant-laden interfaces | Shen, Li; Denner, Fabian; Morgan, Neal; Dini, Daniele | Pattern formation on a bubble: Capillary waves on surfactant-laden interfaces | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1138 | Active control of thin liquid film flows: beyond reduced-order models | Cimpeanu, Radu; Gomes, Susana | We study both distributed and localised controls and analyse the robustness of these strategies, bringing us closer to their integration into real-life engineering designs. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1139 | How to control the morphology of a multiple-liquid system via direct mixing? | Li, Tao | In Part II, I will introduce both the formation mechanism and the stability mechanism of Janus emulsions, which can be a combined effect of multiphase immiscibility, interfacial tensions and surface stabilization. | Session 92: Photophysics and Pattern Formation in Thin Films |
| 1140 | Two-dimensional topological superconductivity in Pb/Co/Si(111) | Cren, Tristan; M�nard, Gerbold; Mesaros, Andrej; Brun, Christophe; Debontridder, Fran�ois; Roditchev, Dimitri; simon, Pascal | We will show that by applying a Zeeman field with the help of a buried Co-Si nano-magnet one can provoke a transition to a topological state [4]. | Session 93: New Developments in Topological Materials |
| 1141 | Fractional Excitonic Insulator | Kane, Charles | We introduce a variant of the Laughlin wavefunction for electrons and holes and show that for m=1 it describes a Chern insulator that is the exact ground state of a free fermion model with p x + i p y excitonic pairing. | Session 93: New Developments in Topological Materials |
| 1142 | New invariants, complete classification and fast diagnosis for topological crystalline insulators | Fang, Chen | Applying these mappings, we have developed a fully automated diagnosis algorithm for all nonmagnetic crystals. | Session 93: New Developments in Topological Materials |
| 1143 | Observation of tunable Dirac interface states in topological crystalline insulator superlattice | Assaf, Badih; Krizman, Gauthier; Phuphachong, Thanyanan; Bauer, G�nther; Springholz, Gunther; Bastard, G�rald; Ferreira, Robson; de Vaulchier, Louis-Anne; Guldner, Yves | By stacking TCI Pb 1-xSn xSe in a superlattice of alternating trivial and non-trivial topology, we dramatically enhance the optical response of its topological Dirac states and succeed in demonstrating the tuning of their energy gap with temperature. | Session 93: New Developments in Topological Materials |
| 1144 | Wilson Loops, Wyckoff Positions, and Wannier Functions: New Developments in Stable and Fragile Topology | Bradlyn, Barry | I will show how this relates to several new ideas, such as symmetry indicators, topological phases with high co-dimension boundary states, and the “fragile” topology of isolated groups of bands. | Session 93: New Developments in Topological Materials |
| 1145 | Superconductivity in Chevrel phases | Profeta, Gianni; marini, Giovanni; Sanna, Antonio | We present the results of the prediction of the superconducting phase in Chevrel compound, PbMo 6S 8, within the SuperConducting Density Functional Theory (SCDFT), a first-principles theory of the superconducting phase which does not rely on any semi-empirical parameter. | Session 94: Novel and Less-common Superconductors |
| 1146 | New magnetic phases and the absence of superconductivity in doped Hematophanite, Pb4Fe3O8Cl | Hojem, Alex; Wampler, James; Schuller, Ivan | We used magnetic field modulated microwave spectroscopy [3], as well as vibrating sample magnetometry, to identify magnetic phase transitions as a function of temperature. | Session 94: Novel and Less-common Superconductors |
| 1147 | Discovery of a new strong-coupling superconductor Y7Ru4InGe12 by indium flux | Bao, Jinke; Bugaris, Daniel; Willa, Kristin; Welp, Ulrich; Chung, Duck Young; Kanatzidis, Mercouri | Here we discovered a new superconductor Y 7Ru 4InGe 12 with T c ~ 5.8 K grown from the indium flux, which is confirmed by resistivity, magnetization and specific heat measurements. | Session 94: Novel and Less-common Superconductors |
| 1148 | Superconducting SrSnP with Strong Sn-P Antibonding Interaction: Is the Sn Atom Single or Mixed Valent? | Gui, Xin; Sobczak, Zuzanna; Chang, Tay-Rong; Xu, Xitong; Jia, Shuang; Klimczuk, Tomasz; Xie, Weiwei | The large single crystals of SrSnP were prepared using Sn self-flux method. | Session 94: Novel and Less-common Superconductors |
| 1149 | Superconductivity and Sn-M�ssbauer spectra of the antiperovskite oxide Sr3-xSnO | Ikeda, Atsutoshi; Kitao, Shinji; Koibuchi, Shun; Oudah, Mohamed; Markovi?, Igor; Hausmann, Jan; Yonezawa, Shingo; Seto, Makoto; Maeno, Yoshiteru | We investigate the evolution of superconducting properties with the nominal Sr deficiency x0. | Session 94: Novel and Less-common Superconductors |
| 1150 | Palladium Dependent Superconductivity in the Nb2PdxSe5 System | Neu, Jennifer; Lai, You; Graf, David; Singh, David; Baumbach, Ryan; Siegrist, Theo | Here we discuss the crystal growth method, structural characterization, and the evolution of the superconducting properties within the accessible range of Pd stoichiometries. | Session 94: Novel and Less-common Superconductors |
| 1151 | Highly reproducible superconductivity in K-doped triphenylbismuthine and tris(2/4-methylphenyl)bismuthine | Huang, Zhongbing; Wang, Ren-Shu; Cheng, Jia; Wu, Xiao-Lin; Yang, Hui; Gao, Yun; Chen, Xiao-Jia | To search for new organic superconductors, we perform a systematic study on the magnetic and electrical properties of K-doped triphenylbismuthine and tris(2/4-methylphenyl)bismuthine, which are successfully synthesized by a two-step method – ultrasound treatment and low temperature annealing. | Session 94: Novel and Less-common Superconductors |
| 1152 | Structures and charge transfer in metal-doped aromatic hydrocarbons | Zhong, Guo-Hua; Chen, Xiao-Jia; Lin, Hai-Qing | In this work, we will present the atomic positions in metal (K, Al, Ga, and In)-doped aromatic hydrocarbons and the distribution and the number of transferred charge, as well analyze the relation between them and electronic structures. | Session 94: Novel and Less-common Superconductors |
| 1153 | Signatures of two-gap superconductivity in epitaxial La(PtxSi1-x)2 films | Liao, Jian; Ou, Yunbo; Moodera, Jagadeesh; Shi, Xiaoyan | We investigated the transport properties of various La(Pt xSi 1- x) 2 thin films grown by molecular beam epitaxy (MBE), where the inversion symmetry and spin-orbit coupling strength are tunable by varying the Pt concentration x. For certain x, magnetoresistance shows a two-step transition at finite temperatures below T c, and the upper critical field is well described by a two-band model. | Session 94: Novel and Less-common Superconductors |
| 1154 | Phase separation at the dimer-superconductor transition in Ir1?xRhxTe2 | Yu, Runze; Banerjee, Soham; Lei, Hechang; Abeykoon, Milinda; Petrovic, Cedomir; Guguchia, Zurab; Bozin, Emil | Phase separation at the dimer-superconductor transition in Ir1?xRhxTe2 | Session 94: Novel and Less-common Superconductors |
| 1155 | Angle-Resolved Photoemission Spectroscopy Study of Planar Nickelate Pr4Ni3O8 | Li, Haoxiang; Zhou, Xiaoqing; Gordon, Kyle; Zheng, Hong; Zhang, Junjie; Mitchell, John; Dessau, Daniel | Here we present the first angle-resolved photoemission spectroscopy study of Pr 4Ni 3O 8. | Session 94: Novel and Less-common Superconductors |
| 1156 | Isotope effect in the layered bismuth chalcogenide (BiCh2-based) superconductor | Hoshi, Kazuhisa; Mizuguchi, Yoshikazu; Goto, Yosuke | We have investigated the selenium isotope effect on T c in the layered bismuth chalcogenide (BiCh 2-based) superconductor LaO 0.6F 0.4Bi(S,Se) 2 using 76Se and 80Se. | Session 94: Novel and Less-common Superconductors |
| 1157 | MENDELIEV’S PERIODIC TABLE and SUPERCONDUCTIVITY:Here it is pointed out that,like chemical properties,elemental metals in the same column of the table and in one headed by a nonmagnetic metal typically have similar Tc’s. | Riblet, Gordon | MENDELIEV’S PERIODIC TABLE and SUPERCONDUCTIVITY:Here it is pointed out that,like chemical properties,elemental metals in the same column of the table and in one headed by a nonmagnetic metal typically have similar Tc’s. | Session 94: Novel and Less-common Superconductors |
| 1158 | Signature of Nematic Superconductivity in CuxBi2Se3: Ginzburg-Landau Theory with External Stress | How, Pye Ton; Yip, Sungkit | We study the Ginzburg-Landau theory of a nematic order parameter coupled to external stress as a pinning field. | Session 94: Novel and Less-common Superconductors |
| 1159 | Reconfigurable Carbon Nanotube Network Devices | Dhakras, Prathamesh; LaGasse, Samuel; Taniguchi, Takashi; Watanabe, Kenji; Wang, Sheng; Peng, Lian-Mao; Lee, Ji Ung | We show that the conduction is determined not only by the metallic concentration, but also by the environment that acts as strong generation and recombination centers. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1160 | Magneto-transport in Type-Enriched Single-Wall Carbon Nanotube Networks | Wang, Xuan; Gao, Weilu; Li, Xinwei; Zhang, Qi; Nanot, S�bastian; Haroz, Erik; Kono, Junichiro; Rice, William | Using this model, we determine carrier phase coherence and describe the temperature-dependent conductivity. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1161 | Universal interaction-driven gap in metallic carbon nanotubes | Senger, Mitchell; McCulley, Daniel; Aspitarte, Lee; Lotfizadeh, Neda; Deshpande, Vikram; Minot, Ethan | We have built ultra-clean suspended CNT devices from CNTs of known diameter and chiral angle. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1162 | Field-Enhanced Exciton Dissociation in Carbon Nanotube Photodiodes | McCulley, Daniel; Senger, Mitchell; Bertoni, Andrea; Minot, Ethan | In this work, we search for carrier multiplication effects in CNTs. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1163 | Tip-enhanced Raman spectroscopy of CNTs in a picocavity | Nan, Kai; Ambardar, Sharad; Voronine, Dmitri | We investigate the tip-sample distance dependence in the nanometer classical and sub-nanometer quantum plasmonic regimes. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1164 | Exciton Relaxation in Carbon Nanotubes via Electronic-to-Vibrational Energy Transfer | Velizhanin, Kirill | In this talk we will discuss the basic physics of EVET and then proceed to estimating the EVET rate for a localized exciton in the SWCNT. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1165 | Binding Energy and Lifetime of Excitons in Metallic Nanotubes | Shan, Lei; Agarwal, Megha; Mishchenko, Eugene | We calculate the corresponding decay rate of the excitons. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1166 | Organic molecule adsorption effects on air-suspended carbon nanotubes | Tanaka, Shunsuke; Ishii, Akihiro; Kato, Yuichiro | By averaging the photoluminescence excitation spectra for tubes with the same chiralities, we observe that the exciton emission energy redshifts gradually with molecular deposition thickness. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1167 | Interlayer interactions and radial breathing mode in double- and triple-walled carbon nanotube bundles | Hue, Jia Wern; Hirschmann, Thomas; Doorn, Stephen; Kim, Yoong Ahm; Barbosa Neto, Newton; Araujo, Paulo | Interlayer interactions and radial breathing mode in double- and triple-walled carbon nanotube bundles | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1168 | Energy barrier for carbon nanotube collapse | Capaz, Rodrigo; Del Grande, Rafael; Fonseca, Alexandre | In this work, we calculate the true energy barrier for carbon nanotube collapse by considering a transition pathway that consists of a local deformation that propagates itself along the carbon nanotube axis. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1169 | Snap-Through Buckling Bi-Stability in Suspended Carbon Nanotube Resonators | Yaish, Yuval; Tabachnik, Tal; Rechnitz, Sharon; Shlafman, Michael; Shlafman, Shlomo | Here, we report the first realization of a suspended carbon nanotube (CNT) based bi-stable resonators exhibiting ST buckling phenomena. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1170 | Solution Sorting of 10 �m Long Single-Walled Carbon Nanotubes | Wang, Peng; Wang, YuHuang | In this presentation, I will discuss an invention from our lab called �superacid-surfactant exchange (S2E)� which allows for non-destructive dispersion and scalable sorting of ultralong SWCNTs in aqueous solutions. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1171 | Synthesis and Characterization of Single Walled Carbon Nanotubes (SWNT) Through Direct Decomposition Ferrocene | De Silva, Thushani; Gallaba, Dinuka; Karunanithy, Robinson; Wasala, Milinda; Zhang, Xianfeng; Li, Shifan; Arsano, Iskinder; Sivakumar, Pooplasingam; Tsige, Mesfin; Ma, Xingmao; megone, aldo; Talapatra, Saikat | Here we present our results on synthesis and characterization of single walled carbon nanotubes (SWNT) through direct decomposition of metallocene. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1172 | Measuring the Electron Beam Induced Plasmon Response in Single-Walled Carbon Nanotube Devices | Zotta, Matthew; Jois, Sharadh; Dhakras, Prathamesh; Lee, Ji Ung | In this work, we examine the transport properties of individual single-walled carbon nanotubes, configured with split gates, as it is excited by a finely focused electron beam. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1173 | Intrinsically Ultrastrong Plasmon-Exciton Interactions in Crystallized Films of Carbon Nanotubes | Falk, Abram; Ho, Po-Hsun; Farmer, Damon; Avouris, Phaedon | We show that carbon nanotubes can be crystallized into chip-scale, two-dimensionally ordered films and that this new material enables intrinsically ultrastrong emitter-cavity interactions: rather than interacting with external cavities, nanotube excitons couple to the near-infrared plasmon resonances of the nanotubes themselves [1]. | Session 95: Transport, Optical, and Mechanical Properties of Carbon Nanotubes |
| 1174 | Rotationally Controlled Atomic Layer Heterostructures | Tutuc, Emanuel | We review here an experimental technique that enables rotationally controlled heterostructures with accurate alignment of individual layer crystal axes [1]. | Session 96: Strain, Stack, Fold, and Twist: New Strategies for Engineering the Electronic Properties of 2D Materials |
| 1175 | Strain-induced Pseudo-Magnetic Fields and flat band in Graphene | Jiang, Yuhang | In this talk, I will present experimental results demonstrating two pathways to generate strain induced PMFs and flat bands. | Session 96: Strain, Stack, Fold, and Twist: New Strategies for Engineering the Electronic Properties of 2D Materials |
| 1176 | Superconductivity in twisted graphene layers: electronic structure and interactions. | Guinea, Francisco | We quantify and analyze these interactions, and discuss their relation with the observed superconducting and insulating states. | Session 96: Strain, Stack, Fold, and Twist: New Strategies for Engineering the Electronic Properties of 2D Materials |
| 1177 | Transport in Twisted Bilayer Graphene at Extreme Angles | Rickhaus, Peter; Wallbank, John; Slizovskiy, Sergey; Pisoni, Riccardo; Overweg, Hiske; Lee, Yongjin; Eich, Marius; Liu, Ming-Hao; Watanabe, Kenji; Taniguchi, Takashi; Ensslin, Klaus; Ihn, Thomas | P-n junctions serve as semi-transparent mirrors and exhibit relativistic phenomena such as Klein-tunneling and we discuss how they can be used to access the interesting physics twisted bilayer graphene at tiny [5] and at very large twist angles. | Session 96: Strain, Stack, Fold, and Twist: New Strategies for Engineering the Electronic Properties of 2D Materials |
| 1178 | Electrically tunable frustrated lattices and magnetism in twisted bilayer graphene | Lado, Jose; Ramires, Aline; Gonzalez-Arraga, Luis; Guinea, Francisco; San-Jose, Pablo | Here we theoretically show that twisted bilayer graphene is a versatile platform to realize tunable frustrated magnets, by realizing triangular and Kagome lattices of localized modes in two dramatically different regimes [1,2]. | Session 96: Strain, Stack, Fold, and Twist: New Strategies for Engineering the Electronic Properties of 2D Materials |
| 1179 | Ferroelectric control of superconductivity in an oxide interface | Rout, Prasanna; Dagan, Yoram | From the analysis of the anisotropy of the critical fields we find that superconductivity is 2D in nature. | Session 97: Superconducting Devices and Applications |
| 1180 | Tunable superconducting devices with a reconfigurable artificial-spin-ice | Lyu, Yangyang; Ma, Xiaoyu; Xu, Jing; Wang, Yonglei; Xiao, Zhili; Wang, Huabing; Divan, Ralu; PEARSON, JOHN; Janko, Boldizsar; Kwok, Wai-Kwong | Here, we present a novel heterostructure combining a newly-introduced artificial spin ice pattern with a superconducting MoGe film. | Session 97: Superconducting Devices and Applications |
| 1181 | Estimating the effect of grain boundaries on the superconducting superheating field in 2D Ginzburg-Landau Theory | Pack, Alden; Transtrum, Mark; Carlson, Jared | We study the role of grain boundaries, including surface morphology and material inhomogeneity, on vortex nucleation within two-dimensional Ginzburg-Landau theory. | Session 97: Superconducting Devices and Applications |
| 1182 | Tunneling spectroscopy of Nb/Al bilayers for superconducting computing | Barcikowski, Zac; Pomeroy, Joshua; Stewart, Michael | We present N/I/S tunnel junctions fabricated with various Al thicknesses in the superconducting bilayer electrode. | Session 97: Superconducting Devices and Applications |
| 1183 | Proximity effect of Nb/Al superlattice as a superconducting resonator | Cheng, Long; Kwon, Sangil; Mohebbi, Hamid; Tang, Yongchao; Cory, David; Miao, Guoxing | Here we systematically study how the proximity effect influence the performance of Nb/Al superlattice resonators. | Session 97: Superconducting Devices and Applications |
| 1184 | Ternary and higher order classical cryogenic memory cells | Nair, Niketh; Braiman, Yehuda | In this talk we will present a ternary cryogenic memory cell paradigm based on an array of inductively coupled Josephson junctions[1]. | Session 97: Superconducting Devices and Applications |
| 1185 | Vortex rectenna powered by environmental fluctuations | Lustikova, Jana; Shiomi, Yuki; Yokoi, Naoto; Kabeya, Noriyuki; Kimura, Noriaki; Ienaga, Koichiro; Kaneko, Shin-ichi; Okuma, Satoshi; Takahashi, Saburo; Saitoh, Eiji | Here we report a material that spontaneously generates electricity by rectifying environmental fluctuations without using atomic asymmetry [Lustikova et al., Nat Commun (2018)]. | Session 97: Superconducting Devices and Applications |
| 1186 | Superconducting Microwave Circuits with High Kinetic Inductance Materials in High Magnetic Fields | Zarassi, Azarin; Hsu, Jen-Feng; Chien, Tzu-Chiao; Cao, Xi; Hatridge, Michael; Frolov, Sergey | We report our experimental progress towards a semiconducting nanowire Josephson junction fluxonium. | Session 97: Superconducting Devices and Applications |
| 1187 | Geometric Superinductors for Mesoscopic Physics | Peruzzo, Matilda; Trioni, Andrea; Zemlicka, Martin; Arndt, Lisa; Hassler, Fabian; Fink, Johannes | We present this new circuit element and it�s applications for the measurement of Josephson junctions in the high impedance regime. | Session 97: Superconducting Devices and Applications |
| 1188 | Quantum thermodynamics in superconducting circuits | Senior, Jorden; Ronzani, Alberto; Karimi, Bayan; Chang, Yu-Cheng; Gubaydullin, Azat; Peltonen, Joonas; Chen, ChiiDong; Pekola, Jukka | By integrating the tools of ultra-sensitive microwave bolometry with those of superconducting circuits (qubits), we present a platform for investigating fundamental quantum thermodynamics in mesoscopic systems, and our initial experimental realizations. | Session 97: Superconducting Devices and Applications |
| 1189 | Spectroscopy of the two unequal superconducting resonators coupled via transmon qubit for the realization of the quantum heat engine | Gubaydullin, Azat; Senior, Jorden; Karimi, Bayan; Chang, Yu-Cheng; Peltonen, Joonas; Chen, ChiiDong; Pekola, Jukka | For the realization of the quantum heat engine, we study the flux-tunable photonic heat transport in the resonator-qubit-resonator assembly with unequal resonators terminated by mesoscopic normal-metal reservoirs. | Session 97: Superconducting Devices and Applications |
| 1190 | 1D Josephson chains isolated from the environment by superinductors | Lu, Wen-Sen; Kalashnikov, Konstantin; Kamenov, Plamen; Zhang, Wenyuan; Gershenson, Michael | In our work we studied the chains of Josephson junctions (JJs) and individual JJs isolated from the environment by the superinductors made of strongly disordered Aluminum [ii]. | Session 97: Superconducting Devices and Applications |
| 1191 | Microwave Microscopy of Materials Limitations of Superconducting RF Cavities | Oripov, Bakhrom; Anlage, Steven | In the low-field case we observe that V_{3f} increases uniformly as a function of applied rf field amplitude, reaches a peak value and decreases to back to 0. | Session 97: Superconducting Devices and Applications |
| 1192 | Wafer Bonding Approach for Epitaxial Al/GaAs(001)/Al Tri-layers | McFadden, Anthony; McRae, Corey Rae; Lake, Russell; Seas, Michael; Wen, Jianguo; Wang, Jie; Arslan, Ilke; Pappas, David; Palmstrom, Chris | This work focuses on a wafer bonding approach, subsequent substrate removal, and superconductor regrowth for fabrication of Al/GaAs(001)/Al Josephson junctions. | Session 97: Superconducting Devices and Applications |
| 1193 | Quantum Transport in 2DEGs in Epitaxial GaN Quantum Wells on Superconducting NbN | Dang, Phillip; Khalsa, Guru; Katzer, D.; Nepal, Neeraj; Downey, Brian; Suslov, Alexey; Xing, Huili; Meyer, David; Jena, Debdeep | We have investigated the magnetotransport properties in this superconductor/semiconductor heterostructure, of the two-dimensional electron gas (2DEG) in the GaN quantum well in magnetic fields up to 35 Tesla. | Session 97: Superconducting Devices and Applications |
| 1194 | Local orthorhombic lattice distortions in the paramagnetic tetragonal phase of superconducting NaFe$_{1?x}$Ni$_x$As | Dai, Pengcheng | Here we use neutron scattering to probe magnetic and nematic orders throughout the phase diagram of NaFe$_{1?x}$Ni$_x$As, finding that while both static antiferromagnetic and nematic orders compete with superconductivity, the onset temperatures for these two orders remain well separated approaching the putative quantum critical points. | Session 98: Nematic Order and Correlated Electrons in Iron Pnictides and Chalcogenides |
| 1195 | Orbital-selective correlations and superconductivity in the nematic FeSe | Zhu, Jian-Xin; Hu, Haoyu; Yu, Rong; Nica, Emilian; Si, Qimiao | We propose that the combination of various bond nematic orders with the ferro-orbital order can give rise to a surprisingly large orbital selectivity among the Fe-3 d t2g orbitals in the normal state. | Session 98: Nematic Order and Correlated Electrons in Iron Pnictides and Chalcogenides |
| 1196 | Orbital selective magnetism, nematicity, and fluctuations in FeSe | Hackl, Rudolf; Baum, Andreas; Ruiz, Harrison; Lazarevic, Nenad; Wang, Yao; Boehm, Thomas; Wolf, Thomas; Moritz, Brian; Devereaux, Thomas | We present results of light scattering experiments as a function of polarization and temperature. | Session 98: Nematic Order and Correlated Electrons in Iron Pnictides and Chalcogenides |
| 1197 | ARPES probe of the electronic structure in the detwinned FeSe | Lu, Donghui | I will present our latest ARPES data taken on fully detwinned FeSe single crystals. | Session 98: Nematic Order and Correlated Electrons in Iron Pnictides and Chalcogenides |
| 1198 | Intertwined and vestigial electronic phases in hole-doped Sr1-xNaxFe2As2 | Meingast, Christoph | Here we present a detailed phase diagram of the Na-doped SrFe 2As 2 system using thermodynamic probes (heat capacity, thermal expansion and magnetization). | Session 98: Nematic Order and Correlated Electrons in Iron Pnictides and Chalcogenides |
| 1199 | Quantum Vortex Melting and Superconductor Insulator Transition in a 2D Josephson Junction Array in a Perpendicular Magnetic Field via Diffusion Monte Carlo | Karki, Pragalv; Loh, Yen Lee | In this study [1], we simulated a quantum rotor model describing a Josephson junction array (JJA) in the phase representation at zero temperature in a perpendicular magnetic field B=0.1,0.2,0.3,0.4 (in units of h/4?ea 2) on a Lx L square lattice with spacing a for L=6,8,10,12. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1200 | Protected gap closing in Josephson junctions constructed on Bi2Te3 surface | Lyu, Zhaozheng; Pang, Yuan; Wang, Junhua; Yang, Guang; Liu, Guangtong; Qu, Fanming; Lu, Li; Fan, Jie; Ji, Zhongqing; Jing, Xiunian | We fabricated Pb-Bi 2Te 3-PbJosephson junctions and developed the method of using nonsuperconducting Pd electrodes to detect the ABS spectra in the junctions area. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1201 | A Mesoscopic Spectrometer Based on the Josephson Effect | Griesmar, Joel; Benzoni, Vincent; Lafont, Fabien; Peyruchat, Leo; Smirr, Jean-Loup; Girit, Caglar | We propose a new broadband spectrometer operating at frequencies up to 180 GHz based on the Josephson effect which converts a DC voltage to microwave oscillations at a frequency proportional to this voltage. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1202 | Quantum Hall Supercurrent in a locally gated Graphene Josephson Junction – Part 1: Induction of Local Filling Factors and Quantum Hall Supercurrent | Seredinski, Andrew; Draelos, Anne; Arnault, Ethan; Wei, Ming-Tso; Li, Hengming; Fleming, Tate; Watanabe, Kenji; Taniguchi, Takashi; Amet, Francois; Finkelstein, Gleb | We present a study of a graphene-based Josephson junction with local gates modulating the carrier density along either edge of the junction in a wide range. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1203 | Quantum Hall Supercurrent in a locally gated Graphene Josephson Junction – Part 2: Evolution of Interference patterns with Carrier Density and Field | Arnault, Ethan; Seredinski, Andrew; Draelos, Anne; Wei, Ming-Tso; Li, Hengming; Fleming, Tate; Watanabe, Kenji; Taniguchi, Takashi; Amet, Francois; Finkelstein, Gleb | We present electrostatic models relating the evolution of the interference patterns to the physical location of quantum Hall edge states in the device. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1204 | Realization of Hybrid Superconductor�Semiconductor Systems by Homoepitaxial Growth of Non-equilibrium P-doped Si(111) | Sardashti, Kasra; Wickramasinghe, Kaushini; Nguyen, Tri; Mayer, William; Hatefipour, Mehdi; Yuan, Joseph; Shabani, Javad | In this work, non-equilibrium p-doping of Si thin-films by homoepitaxial growth of Ga-rich Si on Si(111) is studied. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1205 | Spin-orbit splitting of Andreev states revealed by microwave spectroscopy | Tosi, Leandro; Metzger, Cyril; Goffman, Marcelo; Urbina, Cristian; Pothier, Hugues; park, sunghun; Levy Yeyati, Alfredo; Krogstrup, Peter; Nyg�rd, Jesper | To explore the role of the spin of these states, we have performed their microwave absorption spectroscopy in superconducting weak links with strong spin-orbit coupling: an InAs-Al (core-full shell) epitaxially-grown nanowire. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1206 | Anomalous interference in planar WTe2 Josephson junctions | Pierce, Andrew; Gooth, Johannes; Kosowsky, Michael; Felser, Claudia; Yacoby, Amir | This talk discusses the evolution of the critical current of WTe2 Josephson junctions as a function of in-plane magnetic field. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1207 | Manipulation of Phases and Supercurrents in S-TI-S Lateral Josephson Junction Networks | Huemiller, Erik; Zhang, Can; Yue, Guang; Oh, Seongshik; Van Harlingen, Dale | Manipulation of Phases and Supercurrents in S-TI-S Lateral Josephson Junction Networks | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1208 | Transport Studies in Gate-Tunable Multi-Terminal Josephson Junctions | Graziano, Gino; Lee, Joon Sue; Pendharkar, Mihir; Palmstrom, Chris; Pribiag, Vlad | [3] Here we study the superconducting and resistive properties of top-gated multi-terminal Josephson devices, based on an InAs 2DEG proximitized with epitaxial aluminum. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1209 | Spin-triplet supercurrents in Josephson junctions with Co/Py exchange-spring interfaces | Bhatia, Ekta; Stoneman, James; Komori, Sachio; Srivastava, Anand; Barber, Zoe; Senapati, Kartik; Robinson, Jason | Here we report Josephson coupling in Nb/Co/Py/Nb Josephson junctions in which the total bilayer (Co/Py) thickness exceeds the singlet pair coherence length [1nm in Py [2]). | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1210 | Non-local Josephson effect in Andreev molecules | Girit, Caglar; Pillet, Jean-Damien; Benzoni, Vincent; Griesmar, Joel; Smirr, Jean-Loup | We propose the Andreev molecule, an artificial quantum system comprised of two closely spaced Josephson junctions. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1211 | Phase transitions in current biased superconductors | Oganesyan, Vadim; Moharrami Allafi, Negin | We consider models of Josephson coupled superconducting wires and sheets in the presence of current biasing. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1212 | Probing the magnetic screening properties of superconductor-ferromagnet hybrids. | Satchell, Nathan; Quarterman, Patrick; Loloee, Reza; Kirby, Brian; Borchers, Julie; Birge, Norman | In this work, we report our progress characterising the magnetic screening properties of isolated Nb (200 nm) and a bilayer of Ni (x nm)/Nb (200 nm) using polarized neutron reflectometry and the Fraunhofer characteristic of Josephson junctions. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1213 | Ground-state Phase Oscillations in Josephson Junctions Containing Iron | Madden, Alexander; Byrd, Ben; Loloee, Reza; Birge, Norman | We present a further investigation of iron Josephson junctions and their potential for use as memory devices. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1214 | Appearance of above the gap resonances in dirty Josephson junctions with epitaxial contact | Zare, Shahrzad; Mayer, William; Sabatino, Foster; Youmans, Cody; Wickramasinghe, Kaushini; Yuan, Joseph; Dartiailh, Matthieu; Somoroff, Aaron; Ghaemi Mohammadi, Pouyan; Shabani, Javad | In devices fabricated on InAs-Al materials, we observe oscillations of conductance with driving bias above the superconducting gap. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1215 | Pair tunneling in La2-xSrxCuO4 junctions above Tc | Zhou, Panpan; Chen, Liyang; Liu, Yue; Bollinger, Anthony; He, Xi; Sochnikov, Ilya; Bozovic, Ivan; Natelson, Douglas | We report measurements on the shot noise of the tunneling current in c-axis epitaxial structure of La 2-xSr xCuO 4/La 2CuO 4/La 2-xSr xCuO 4 for several doping levels. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1216 | Infrared and THz Optical Nanoscopy of High-Tc Superconductor Devices | Gozar, Adrian; Lu, Qianbo; Bollinger, Anthony; Bozovic, Ivan | We use cryogenic atomic force microscopy (AFM) combined with scanning near-field optical microscopy (SNOM) to study thin films and nano-constriction devices in La 2-xSr xCuO 4 high-Tc cuprate superconductors. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1217 | Non-vanishing Fraunhofer Pattern in WTe2 Josephson Junction | Choi, Yong-Bin; Chen, Chui-Zhen; Park, Jinho; Rana, Gaurav; Lee, Hu-Jong; Ali, Mazhar; Law, Kam Tuen; Fong, Kin Chung; Lee, Gil-Ho | We fabricated proximity Josephson junctions based on mechanically exfoliated WTe 2 layers of thickness around 10-20 nm and studied their Josephson effects under magnetic field. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1218 | Josephsonic diagnostic of competing orders in quantum critical multiband superconductors | Dzero, Maxim; Levchenko, Alex | Motivated by the recent experimentally observed manifestations of the quantum critical point fluctuations in the thermodynamic properties of multiband superconductors, we will present the derivation of a general expression for the Josephson current of various junctions between two superconductors in the phase of superconductivity coexistence with the spin-density-wave. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1219 | Supercurrent in InSb Quantum Point Contacts | Zhang, Bomin; Wu, Hao; Gazibegovic, Sasa; Badawy, Ghada; Op het Veld, Roy; Bakkers, Erik; Frolov, Sergey | We study superconductivity induced by NbTiN in InSb nanowires. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1220 | Enhanced Superconductivity and Infinite Electro-resistance in Proximity Exchange Coupled Superconductor Nano-bridges by Electric Field – towards First Generation of Triplet Paired Superconductor FETs | Rocci, Mirko; Da Silva Vilela, Gilvania; Suri, Dhavala; Moodera, Jagadeesh | Here, we present results of gating experiments on superconducting thin NbN film ( T c ~12 K) based nano-SuFETs which show a tunable infinite electro-resistance (ER). | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1221 | Shapiro steps in InAs-based Josephson junctions with epitaxial Al contacts | Dartiailh, Matthieu; Yuan, Joseph; Mayer, William; Wickramasinghe, Kaushini; Liu, Dillon; Mitra, Aditi; Shabani, Javad | We study Shapiro steps that appear in the IV characteristic of a junction under microwave irradiation. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1222 | Ultrasensitive Calorimetry in an Al/InAs Josephson Junction | Katti, Raj; Saira, Olli; Matheny, Matthew; Roukes, Michael | We present work toward development of a Josephson junction-based calorimeter fabricated from an Al/InAs superconductor-semiconductor heterostructure, a material system being developed for scalable topological quantum computation. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1223 | Unconventional Josephson effect in 2D Josephson junctions based on In0.75Ga0.25As quantum wells | Delfanazari, Kaveh; Ma, Pengcheng; Farrer, Ian; Ritchie, David; Joyce, Hannah; Kelly, Michael; Smith, Charles | Here, we report on the discovery of an unconventional Josephson effect in hybrid In 0.75Ga 0.25As two-dimensional electron gas-Nb junctions that are designed and fabricated for scalable hybrid quantum circuit integration [1-3]. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1224 | Effect of Material Quality on Superconducting Proximity Effect in Al-InAs Heterostructures | Wickramasinghe, Kaushini; Mayer, William; Yuan, Joseph; Nguyen, Tri; Dartiailh, Matthieu; Sardashti, Kasra; Manucharyan, Vladimir; Shabani, Javad | Here we study Josephson junctions with epitaxial Al-InAs contacts and find large super currents and substantial product of ICRN in our high mobility wafers. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1225 | Probing pair-breaking mechanisms in proximity-induced hybrid superconducting interfaces | Raman, Karthik | Here, we provide a phenomenological tool to characterize different pair-breaking mechanisms, the ones that break or preserve time reversal symmetry, and show how they affect the differential tunneling conductance response. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1226 | Wavefunction of Andreev bound states with topological Weyl singularity in multi-terminal Josephson junction | Yokoyama, Tomohiro; Kawabata, Shiro | In this study, we investigate the wavefunction of ABSs with and without the Weyl point. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1227 | Reduced Parameter Spread in Arrays of Planar MgB2 Josephson Junctions Made by Focused Helium Ion Beam | Kasaei, Leila; Li, Mengjun; Melbourne, Thomas; Feldman, Leonard; Gustafsson, Torgny; Chen, Ke; Xi, Xiaoxing | This technique uses a 30 keV focused helium ion beam with nominal beam diameter less than 0.5 nm and range of dose from 0.9 to 3 � 10^16 (Ions/cm^2)[1] to locally damage the 25 nm-thick MgB 2 thin films grown by hybrid physical-chemical deposition (HPCVD) on SiC substrates to form the junction barriers. | Session 99: Superconductivity: Proximity Effect and Josephson Junctions |
| 1228 | Topological magnon bands in ultra-thin film pyrochlore iridates and iron jarosites | Fiete, Gregory | We describe recent theoretical efforts of our group aimed at exploring two-dimensional magnetic systems described by local moment models that possess topological band structures of the low-energy spin fluctuations. | Session 100: Topological Magnons |
| 1229 | Topological spin excitations in a three-dimensional antiferromagnet | Yao, Weiliang; Li, Chenyuan; Wang, Lichen; Xue, Shangjie; Dan, Yang; Iida, Kazuki; Kamazawa, Kazuya; Li, Kangkang; Hu, Jiangping; Fang, Chen; Li, Yuan | In a concrete example of a Heisenberg spin model for a “spin-web” compound, Cu 3TeO 6, we theoretically demonstrate the presence of Dirac magnons over a wide parameter range using linear spin-wave approximation [1]. | Session 100: Topological Magnons |
| 1230 | Topology of magnons: classification and application to honeycomb Kitaev magnets | Lu, Yuan-Ming | Here we provide a generic theory framework to classify and compute the topology of magnons, by mapping an arbitrary linear spin wave into a local free-fermion Hamiltonian with exactly the same spectrum, symmetry implementation and band topology. | Session 100: Topological Magnons |
| 1231 | Discovery of coexisting Dirac and triply degenerate magnons in a three-dimensional antiferromagnet | Wen, Jinsheng | In this talk, we show direct spectroscopic evidence for the coexistence of symmetry-protected Dirac and triply degenerate nodes, the latter involving three-component magnons beyond the Dirac�Weyl framework, by measuring spin excitations of a three-dimensional antiferromagnet Cu3TeO6 with inelastic neutron scattering. | Session 100: Topological Magnons |
| 1232 | The surprising usefulness of magnons at intermediate and high energies: from frustration to topology | Moessner, Roderich | The surprising usefulness of magnons at intermediate and high energies: from frustration to topology | Session 100: Topological Magnons |
| 1233 | Symmetry-protected line nodes and Majorana flat bands in nodal crystalline superconductors | Kobayashi, Shingo; Sumita, Shuntaro; Yanase, Youichi; Sato, Masatoshi | We introduced the 1D and 0D topological numbers associated with line nodes, each of which ensures the existence of MFBs and stability of line nodes, respectively. | Session 101: Topological Superconductors and Superfluids |
| 1234 | Full proximity approach to induced gap in topological superconductor junctions | Setiawan, Fnu; Wu, Chien-Te; Levin, Kathryn | In this talk, we address the proximity-induced superconductivity in this setup by studying the full proximity model of a superconductor-insulator-superconductor junction in contact with a spin-orbit-coupled substrate. | Session 101: Topological Superconductors and Superfluids |
| 1235 | Hot electron magnetotransport in the high mobility GaAs/AlGaAs two dimensional electron system below 1K | Munasinghe, C.Rasadi; Gunawardana, Binuka; Samaraweera, Rasanga; Nanayakkara, Tharanga; Wijewardena, U. Kushan; Withanage, Sajith; Kriisa, Annika; Reichl, Christian; Wegscheider, Werner; Mani, Ramesh | In this report, we show evidence for a carrier heating effect due to the small ac bias. | Session 101: Topological Superconductors and Superfluids |
| 1236 | Topological Phases in Nodeless Tetragonal Superconductors | Varona, Santiago; Ortiz, Laura; Viyuela, Oscar; Martin-Delgado, Miguel Angel | Subject to a Zeeman field and spin-orbit coupling, we demonstrate that these superconductors show surprising topological features: non-trivial high Chern numbers, massive edge states, and zero-energy modes out of high symmetry points, even though the edge states remain topologically protected. | Session 101: Topological Superconductors and Superfluids |
| 1237 | Fractional Josephson Vortices and Braiding of Majorana Zero Modes in Planar Superconductor-Semiconductor-Superconductor Josephson junctions | Stern, Ady; Berg, Erez | We consider the one-dimensional (1D) topological superconductor that may form in a planar superconductor-metal-superconductor Josephson junction in which the metal is is subjected to spin orbit coupling and to an in-plane magnetic field. | Session 101: Topological Superconductors and Superfluids |
| 1238 | An Exactly Solvable Interacting Edge Theory for a Weak 2D Topological Superconductor. | Sullivan, Joseph; Cheng, Meng | We proposed an exactly solvable model for the edge and worked out its phase diagram. | Session 101: Topological Superconductors and Superfluids |
| 1239 | Majorana corner states in D class | Liu, Xin; Pan, Xiao-Hong; Yang, Kai-Jie | In this talk, we show that how to realize MCSs in two-dimensional topological insulators in the presence of both superconductivity and magnet. | Session 101: Topological Superconductors and Superfluids |
| 1240 | Generalized Aubry-Andr�-Harper model with p-wave superconducting pairing | Zeng, Qi-Bo; Chen, Shu; L�, Rong | The phase diagrams and the topological quantum numbers for these phases are presented in this work. | Session 101: Topological Superconductors and Superfluids |
| 1241 | Conformal phase transition in topological superconductors | Nogueira, Flavio; Van den Brink, Jeroen; Sudbo, Asle | In this talk we will introduce a more subtle type of CPT, one that is driven by a topological term in the effective action in 2+1dimensions. | Session 101: Topological Superconductors and Superfluids |
| 1242 | Superconformal Cardy states and entanglement structure of 1D quantum critical points with emergent supersymmetry | Chen, Chun; Maciejko, Joseph | As an application of this formalism we present and discuss numerical DMRG results for the entanglement spectrum of the Grover–Sheng–Vishwanath model as a lattice realization of the tricritical Ising universality class. | Session 101: Topological Superconductors and Superfluids |
| 1243 | Majorana Corner Modes in a High-Temperature Platform | Yan, Zhongbo; Song, Fei; Wang, Zhong | We introduce two-dimensional topological insulators in proximity to high-temperature cuprate or iron based superconductors as high-temperature platforms of Majorana Kramers pairs of zero modes. | Session 101: Topological Superconductors and Superfluids |
| 1244 | Zero-energy Andreev bound states from quantum dots in proximitized Rashba nanowires | Reeg, Christopher; Dmytruk, Olesia; Chevallier, Denis; Loss, Daniel; Klinovaja, Jelena | We study an analytical model of a Rashba nanowire that is partially covered by and coupled to a thin superconducting layer, where the uncovered region of the nanowire forms a quantum dot. | Session 101: Topological Superconductors and Superfluids |
| 1245 | The survival of topological signatures in the presence of average symmetries | Huang, Yingyi; Chiu, Ching-Kai | In this work, we consider a quasi-one-dimensional topological superconductor in the presence of disorders preserving average time-reversal symmetry or mirror symmetry. | Session 101: Topological Superconductors and Superfluids |
| 1246 | Digital-Analog Quantum Computing | Sanz, Mikel | We introduce the concept of banged digital-analog quantum computing, in opposition to the stepwise, when single-qubit rotations are much faster than the natural time-scale of the Hamiltonian, which allows us to compute without switching on/off the global interaction. | Session 102: The Physics of Computing and Computing with Physics |
| 1247 | The physics and challenges of neuromorphic computing with spintronic nanooscillators | Grollier, Julie | The physics and challenges of neuromorphic computing with spintronic nanooscillators | Session 102: The Physics of Computing and Computing with Physics |
| 1248 | MemComputing: leveraging memory and physics to compute efficiently | Di Ventra, Massimiliano | In this talk I will discuss how to employ memory (time non-locality), in a novel physics-based approach to computation: Memcomputing [1, 2, 3]. | Session 102: The Physics of Computing and Computing with Physics |
| 1249 | Benchmarking NISQ-era quantum processors | Gambetta, Jay | In this talk I will review the work we are doing at IBM to develop a NISQ device and our recent results. | Session 102: The Physics of Computing and Computing with Physics |
| 1250 | Accelerating Deep Neural Networks with Analog Memory Devices | Mackin, Charles; Narayanan, Pritish; Tsai, Hsinyu; Ambrogio, Stefano; Chen, An; Burr, Geoffrey | We present some novel solutions to finesse some of these issues in the near-term, and describe some challenges in designing and implementing the CMOS circuitry around the NVM array. | Session 102: The Physics of Computing and Computing with Physics |
| 1251 | Solvable 3D classical statistical models and a spin-fermion mapping | Wang, Zhiyuan; Hazzard, Kaden | In this talk, I will describe an exactly solvable classical statistical model on a 3D lattice. | Session 103: Topological Spin Liquids |
| 1252 | Higher Order Bosonic Topological Phases in Spin Models | Dubinkin, Oleg; Hughes, Taylor | Motivated by the recent discovery of the higher order topological phases in the fermionic systems we propose a natural extension of these phases to bosonic systems. | Session 103: Topological Spin Liquids |
| 1253 | The Cyclotron resonance as a smoking gun for U(1) spin liquids with gapless fermions | Rao, Peng; Sodemann, Inti | In this work, we show that they can also have cyclotron resonance peaks in their optical spectrum analogous to metals, even though they are charge insulators. | Session 103: Topological Spin Liquids |
| 1254 | A Microscopic Definition of the F-symbol | Kawagoe, Kyle; Levin, Michael | In this talk, we will address this issue by giving a microscopic definition of the �F-symbol� — one of the most poorly understood pieces of data that characterize anyons. | Session 103: Topological Spin Liquids |
| 1255 | Symmetric gauge theories and Lieb-Schultz-Mattis-type constraints | Yang, Xu; Ran, Ying | When the physical system hosts Lieb-Schultz-Mattis-type constraints, which is a specific type of anomaly class, our result sharply determines the physically allowed symmetric gauge theories via the preimage of the cup product. | Session 103: Topological Spin Liquids |
| 1256 | A model of symmetry enriched topological phases and its symmetry breaking gapped boundaries | Shi, Bowen; Lu, Yuanming | We present a model of symmetry enriched topological phases (SET) based on the toric code model, with symmetry group being the tensor product of translation and a Z 2 onsite unitary symmetry. | Session 103: Topological Spin Liquids |
| 1257 | Thermal Transport Study of the Dimerized Quantum Magnet Strontium Copper Borate | Tinsman, Colin; Xiang, Ziji; Chen, Lu; Mihaliov, Dmitri; Haravifard, Sara; Li, Lu | We report on the field-dependent thermal conductivity of this material as well as our progress in observing triplon states using the thermal Hall effect. | Session 103: Topological Spin Liquids |
| 1258 | Entanglement Spectra of Stabilizer Codes: A Window into Fracton Order and Sub-System Symmetry Protected Topological States | Schmitz, Albert; Huang, Sheng-Jie; Prem, Abhinav | We discuss the entanglement spectrum (ES) for stabilizer Hamiltonians with arbitrary weak local perturbations to contrast the entanglement features of gapped topological phases. | Session 103: Topological Spin Liquids |
| 1259 | Topological Transitions and the Spectral Function in the Kitaev-Ising Honeycomb Model | Aldape, Erik; Verresen, Ruben; Altman, Ehud | We address this question by using a simplified model: a strongly-anisotropic Kitaev honeycomb model supplemented by Ising interactions. | Session 103: Topological Spin Liquids |
| 1260 | Classification of Symmetry Enriched Topological Phases Under Spatial Groups Interchanging Anyons | Fu, Tianfu; Nevidomskyy, Andriy; Burnell, Fiona | In this work, we extend classification to cases where the group action is nontrivial so that a subset of symmetry elements exchanges the anyon types. | Session 103: Topological Spin Liquids |
| 1261 | Foliated Quantum Field Theory of Fracton Order and String-Membrane-Net Condensation | Slagle, Kevin; Aasen, David; Williamson, Dominic | I will introduce a new kind of field theory to describe these phases: a foliated field theory. | Session 103: Topological Spin Liquids |
| 1262 | Thermal Hall effect in the quantum spin liquid candidate ?-RuCl3 | Lefrancois, Etienne; Grissonnanche, Gael; Kelley, Paula; Balz, Christian; Yan, Jiaqiang; Mandrus, David; Nagler, Stephen; Taillefer, Louis | Given that the magnitude of both ? xy and the longitudinal thermal conductivity ? xx varies greatly from sample to sample [3,4], we report further measurements of heat transport in ?-RuCl 3, with the aim of shedding light on the factors responsible for this considerable variability. | Session 103: Topological Spin Liquids |
| 1263 | Electrical probes of the non-Abelian spin liquid phase in ?-RuCl3 | Aasen, David; Mong, Roger; Hunt, Benjamin; Mandrus, David; Alicea, Jason | We propose a series of measurements for electrically detecting the hallmark chiral Majorana edge states and bulk anyons in the spin-liquid phase — despite the fact that ?-RuCl 3 is a good Mott insulator. | Session 103: Topological Spin Liquids |
| 1264 | Thermal Hall effect in square-lattice spin liquids | Samajdar, Rhine; Chatterjee, Shubhayu; Scheurer, Mathias; Sachdev, Subir | More specifically, we examine different Schwinger-boson mean-field ans�tze for the Heisenberg antiferromagnet on the square lattice, allowing for both Dzyaloshinskii-Moriya interactions and additional terms that break time-reversal and reflection symmetries but preserve their product. | Session 103: Topological Spin Liquids |
| 1265 | Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) State in a Strongly Correlated d-wave Superconductor | Datta, Anushree; Yang, Kun; Ghosal, Amit | We investigate the effects of strong correlation on the FFLO state in a d-wave superconductor within an integrated framework of Hartree-Fock-Bogoliubov theory and Gutzwiller approximation. | Session 104: Non-uniform states in Superconductors |
| 1266 | Surface pair-density-wave state and generalisation of Fulde-Ferrell-Larkin-Ovchinnikov state to chiral and nematic superconductors | Barkman, Mats; Zyuzin, Alexander; Babaev, Egor | We find that the transition from the FFLO to normal state is not direct. | Session 104: Non-uniform states in Superconductors |
| 1267 | Broken translational symmetry at edges of unconventional superconductors | Holmvall, Patric; Vorontsov, Anton; Fogelstrom, Mikael; Lofwander, Tomas | We present results [1] for a second-order phase transition at T?0.2T c, where T c is the superconducting transition temperature, where time-reversal and continuous translational symmetry along the surface are spontaneously broken. | Session 104: Non-uniform states in Superconductors |
| 1268 | Phase crystallization near surfaces of unconventional superconductors | Vorontsov, Anton; Holmvall, Patric; Lofwander, Tomas; Fogelstrom, Mikael | We demonstrate that a pairbreaking surface leads to an instability in the phase of the superconducting order parameter. | Session 104: Non-uniform states in Superconductors |
| 1269 | Fine structure in the thermal conductivity of unconventional superconductor CeCoIn5 in rotating magnetic field | Movshovich, Roman; Lin, Shizeng; Kim, Duk Young; Bauer, Eric; Ronning, Filip | Fine structure in the thermal conductivity of unconventional superconductor CeCoIn5 in rotating magnetic field | Session 104: Non-uniform states in Superconductors |
| 1270 | Time-reversal symmetry breaking in superconductors through loop pair-current order | Ghosh, Sudeep; Quintanilla, Jorge; Annett, James | We propose a superconducting instability where microscopic loop pair-currents form spontaneously within a unit cell at the critical temperature, Tc . | Session 104: Non-uniform states in Superconductors |
| 1271 | Study of inhomogenous superconducting gap in titanium nitride (TiN) films measured by low-temperature STM | Liao, Wan-Ting; Osborn, Kevin; Butera, Robert; Lobb, Christopher; Wellstood, Frederick; Dreyer, Michael | Surprisingly, the two models yield strikingly different results and we present evidence that in these samples the BTK model yields the correct physical interpretation. | Session 104: Non-uniform states in Superconductors |
| 1272 | Spatially modulated superconductivity in CeIrIn5 microstructures | Ferguson, George; Bachmann, Maja; Theuss, Florian; Meng, Tobias; Putzke, Carsten; Helm, Toni; Shirer, Kent; LI, YOU-SHENG; Modic, Kimberly; Nicklas, Michael; Koenig, Markus; Low, David; Ghosh, Sayak; Mackenzie, Andrew; Arnold, Frank; Hassinger, Elena; McDonald, Ross; Winter, Laurel; Bauer, Eric; Ronning, Filip; Ramshaw, Brad; Moll, Philip; Nowack, Katja | We present scanning SQUID microscopy of CeIrIn 5 Focused Ion Beam (FIB) defined microstructures. | Session 104: Non-uniform states in Superconductors |
| 1273 | Topological Behavior of Pair Density Waves on a Kondo-Heisenberg Ladder | Levy, Ryan; May-Mann, Julian; Clark, Bryan; Fradkin, Eduardo | Using the density matrix renormalization group (DMRG), we explicitly illustrate the topological properties of the PDW phase of the KHM on finite systems. | Session 104: Non-uniform states in Superconductors |
| 1274 | Suppression of superfluid stiffness near Lifshitz-point instability to finite momentum superconductivity | Wardh, Jonatan; Andersen, Brian; Granath, Mats | We derive the effective Ginzburg-Landau theory for finite momentum (FFLO/PDW) superconductivity without spin population imbalance from a model with local attraction and a repulsive pair-hopping. | Session 104: Non-uniform states in Superconductors |
| 1275 | Orbitally limited pair-density wave phase of multilayer superconductors | M�ckli, David; Yanase, Youichi; Sigrist, Manfred | The motivating guiding question in this paper is: what is the minimal necessary Maki value for the appearance of the pair-density wave phase of a superconducting trilayer system? | Session 104: Non-uniform states in Superconductors |
| 1276 | Mass hierarchy in collective modes of pair-density-wave superconductors | Jian, Shaokai; Scherer, Michael; Yao, Hong | We study collective modes near the quantum critical point of a pair-density-wave (PDW) superconductor in 2+1 dimensions. | Session 104: Non-uniform states in Superconductors |
| 1277 | Study of over-doped thin film LSCO with scanning squid microscopy | Shi, Ruby; Adamo, Carolina; Kirtley, John; Dodge, J. Steven; Moler, Kathryn | To test the validity of this picture, we have characterized the spatial homogeneity of zero-frequency superfluid density using scanning-SQUID microscopy. | Session 104: Non-uniform states in Superconductors |
| 1278 | Inhomogeneous superconductivity in PdTe2 | Sheet, Goutam; Sirohi, Anshu; Das, Shekhar; Vashist, Amit; Adhikary, Priyo; Gayen, Sirshendu; Chowdhury, Rajeswari Roy; Singh, Yogesh; Das, Tanmoy | We have performed scanning tunneling microscopy and spectroscopy on single crystals of PdTe 2 and have shown that despite such unique co-existence of Dirac physics and superconductivity, the superconducting phase of PdTe 2 is conventional in nature. | Session 104: Non-uniform states in Superconductors |
| 1279 | Local versus Global Superconductivity in Atomic Layer Indium on Si(111) | Liu, Mengke; Nam, Hyoungdo; Kim, Jungdae; Shih, Chih-Kang | To better understand the role of defects in superconductivity, we studied superconducting monolayer Indium films by tailoring the step density of the substrate. | Session 104: Non-uniform states in Superconductors |
| 1280 | Magnetic Ordering Competition Leading to Disorder Betweeen CeIn3 and NdIn3 | Badger, Jackson; Miyawaki, Rumika; Klavins, Peter; Brubaker, Zachary; Zieve, Rena; Matsuda, Tatsuma; Taufour, Valentin | We present the sample synthesis and characterizations, as well as a discussion of the observed magnetic properties in the context of heavy-fermion behavior, Kondo interactions, and magnetic anisotropy. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1281 | Weak hybridization effects revealed by ARPES in heavy-fermion Ce2IrIn8 | Liu, Haijiang; Ding, Hong; Xu, Yuanji | We utilize high resolution on-resonant (hv~120eV) angle-resolved photoemission spectroscopy (ARPES) to study the band structure and hybridization effect of heavy-fermion compound Ce 2IrIn 8. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1282 | Critical charge fluctuations and $\omega$/T scaling at the Kondo breakdown of Heavy-fermion systems | Komijani, Yashar; Coleman, Piers | We will argue that such soft charge fluctuations are natural consequences of an abrupt change in the Fermi surface volume that accompanies Kondo breakdown (KBD) in heavy-fermion systems. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1283 | Evolution from Ferromagnetism to Antiferromagnetism in the CeTi1-xVxGe3 System | Jin, Hanshang; Badger, Jackson; Klavins, Peter; Taufour, Valentin | Here we show that substituting vanadium in place of titanium will suppress ferromagnetism, and an antiferromagnetic state is observed near the V-rich end. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1284 | Evolution of Charge Density Wave Order in CeTe2 | Sharma, Bishnu; Singh, Manoj; Ahmed, Burhan; Yu, Boning; Walmsley, Philip; Fisher, Ian; Boyer, Michael | Here we present our scanning tunneling microscopy measurements on CeTe 2. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1285 | Thermal expansion measurements of heavy-fermion CeAuSb2 | Seo, Soonbeom; Thomas, Sean; Ronning, Filip; Bauer, Eric; Thompson, Joe; Rosa, Priscila | Here we report the temperature dependence of the resistivity ( ?) and thermal expansion (?L/L) of CeAuSb 2 when H||c-axis. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1286 | Competing incommensurate orders in a heavy fermion antiferromagnet CeNiGe2 | Poudel, Lekh; Zhao, Yang; Xu, Zhijun; Ratcliff, William; Paglione, Johnpierre; Lynn, Jeffrey | We have determined the magnetic structure and phase diagram of a heavy fermion compound CeNiGe 2 as a function of magnetic field and temperature using single crystal neutron diffraction. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1287 | Thermodynamic and transport properties of RCd3P3 (R = La and Ce) single crystals | Rabus, Anja; Lee, Jeonghun; Mun, Eundeok | Thermodynamic and transport properties of RCd3P3 (R = La and Ce) single crystals | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1288 | Field-induced Pseudogap in the Heavy-fermion Superconductor CeCoIn5 | Shrestha, Keshav; Greene, Laura; Bauer, Eric; Thompson, Joe; Lai, You; Baumbach, Ryan; Sasmal, Kalyan; Maple, M Brian; Park, Wan Kyu | Field-induced Pseudogap in the Heavy-fermion Superconductor CeCoIn5 | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1289 | Thermal expansion near the bicritical point in YbAgGe | Schmiedeshoff, George; Park, J.-H.; Graf, D.; Bud’ko, S.L.; Canfield, P.C. | We will discuss the phase diagram and quantum bicriticality of YbAgGe and the new dilatometer. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1290 | Pressure-temperature phase diagram of YbNi2B2C | Xiang, Li; Furukawa, Yuji; Struzhkin, Viktor; Gavriliuk, Alexander; Budko, Sergey; Canfield, Paul | Pressure-temperature phase diagram of YbNi2B2C | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1291 | THz Spectroscopy of the Heavy Fermion Metal YbAl3 | Barbalas, David; Chatterjee, Shouvik; Shen, Kyle; Schlom, Darrell; Armitage, Norman | We have investigated the THz range electrodynamic response of these materials and discuss the results from the optical conductivity in the context of prevailing theories. | Session 105: Strongly Correlated Ce- and Yb-based Materials |
| 1292 | The role of Joule heating in the voltage-triggered insulator-to-metal transition in VO2. | Spitzig, Alyson; Frenzel, Alex; Kim, Jeehoon; Ko, Changhyun; Ramanathan, Shriram; Hoffman, Jennifer; Hoffman, Jason | By fitting the IV curves immediately preceding the IMT to the temperature-dependent Poole-Frenkel conduction mechanism, we determine the local temperature of VO 2 in the insulating state. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1293 | Self-consistent GW study of VO2 | Kutepov, Andrey | Self-consistent GW study of VO2 | Session 106: VO2 and Related Metal Insulator Transitions |
| 1294 | Microstructural Engineering of the UV/Near-UV Photocurrent Production in VO2 Thin Film Based Detectors | Creeden, Jason; Madaras, Scott; Beringer, Doug; Beebe, Melissa; Novikova, Irina; Lukaszew, Rosa | We sought to optimize the photosensitivity of VO 2 thin films in the near-UV (NUV) and UV regions after recent reports demonstrating it is possible to push the typical IR photoresponse of VO 2 into the visible spectrum via thin film growth on TiO 2:Nb substrates. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1295 | An infrared investigation of the insulator-to-metal transition in a thin, epitaxially strained VO2 film | Lahneman, David; McArdle, Patrick; Qazilbash, Muhammad; Slusar, Tetiana; Kim, Hyun-Tak | Here we report infrared and optical measurements on a very thin (~ 10 nm) VO 2 film on (001) TiO 2 substrate with an insulator-to-metal transition temperature of ~ 305 K, just above room temperature. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1296 | Correlation-driven metal-insulator transitions in hydrogenated VO2 | Park, Se Young; Kim, So Yeun; Backes, Steffen; Park, Byung Cheol; Son, Junwoo; Yoon, Hyojin; Noh, Tae Won; Biermann, Silke | We investigate the electronic and optical properties of hydrogenated H xVO 2. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1297 | Insights into the anomalous thermal properties of VO2 from synchrotron spectromicroscopy | KUMAR, SUHAS; Bohaichuk, Stephanie; Chen, Lu; Sood, Aditya; Shapiro, David; Zhou, Haidong; Lindenberg, Aaron; Li, Lu; Williams, Stanley; Pop, Eric | Here we performed temperature-controlled scanning X-ray absorption spectromicroscopy (SXASM), using synchrotron radiation with <30 nm spatial resolution, on single crystal VO2 that exhibited these anomalies in thermal conductivity. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1298 | Modulating metal-insulator transitions in VOX by tuning oxygen stoichiometry | Lee, Minhan; Kalcheim, Yoav; del Valle, Javier; Schuller, Ivan | We demonstrate a gas evolution technique to precisely modify the oxygen stoichiometry in VO X thin films grown on sapphire substrates. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1299 | Non-Gaussian resistance noise behavior across the metal-insulator transition in VO2 thin films | Ali, Ahmed; Adhikari, Dasharath; Kilcoyne, Colin; Ganapathy, Sambandamurthy | We present results from a resistance noise spectroscopy study of VO 2 thin films that show that the power spectral density (PSD) of the fluctuations near T c show a marked deviation from the metallic and insulating phases. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1300 | Resonant Hard X-ray Emission Spectroscopy of VO2 Thin Films in Metallic and Insulating Phases | Ha, Sung Soo; Choi, Seokjun; Faiyaz, Mohd; Lee, Suyong; Noh, Do Young | Resonant Hard X-ray Emission Spectroscopy of VO2 Thin Films in Metallic and Insulating Phases | Session 106: VO2 and Related Metal Insulator Transitions |
| 1301 | Resistance fluctuation of V2O3 films near the metal-insulator transition | Chen, Liyang; Zhou, Panpan; Kalcheim, Yoav; Schuller, Ivan; Natelson, Douglas | Here, we study resistance fluctuations as a function of time in both low frequency (< 300 kHz) and higher frequency (225MHz-580MHz) ranges, comparing them to show the dynamic properties at both low and high frequency. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1302 | The role of defects on the metal-insulator transition in V2O3 and VO2 | Wickramaratne, Darshana; Bernstein, Noam; Mazin, Igor | In V 2O 3 we find defects disrupt the antiferromagnetic (AFM) order in the insulating phase. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1303 | NMR and bulk studies on S=1/2 spin chain Bi6V3O16 | Chakrabarty, Tanmoy; Heinmaa, Ivo; Verchenko, Valeriy; Paulose, P; Stern, Raivo | We report the NMR and bulk properties of a vanadium based S=1/2 spin chain compound Bi 6V 3O 16 in its low temperature phase where the magnetic V 4+ ions are arranged in a one-dimensional chain mediated by V 5+ and oxygen ions. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1304 | Ultrafast response of thin film vanadium dioxide grown on titanium dioxide doped with niobium | Madaras, Scott; Creeden, Jason; Beringer, Doug; Novikova, Irina; Lukaszew, Rosa | We have studied vanadium dioxide (VO 2) films grown on titanium dioxide (TiO 2) substrates to investigate the properties of the heterojunction that forms at the interface between substrate and film with the purpose of applying it as an UV photodetector. | Session 106: VO2 and Related Metal Insulator Transitions |
| 1305 | Spatial Charge and Spin Correlations in the 2D Fermi-Hubbard Model: Comparison between quantum Monte Carlo simulations and optical lattice emulators | Trivedi, Nandini | I will report on the current status and challenges faced by quantum Monte Carlo simulations to obtain quantitative information about the spatially resolved charge and spin correlations in the two-dimensional Fermi-Hubbard model. | Session 107: Precision Many Body Physics |
| 1306 | Metal to insulator crossover and non-Fermi-liquid physics in the half-filled 2d Hubbard model | Kim, Aaram; Simkovic, Fedor; Kozik, Evgeny | We present a controlled study of the finite-temperature crossover from the metallic to insulating regime in the half-filled 2D Hubbard model using Diagrammatic Monte Carlo techniques in the thermodynamic limit. | Session 107: Precision Many Body Physics |
| 1307 | Pair Density Wave in the doped t-J model with ring exchange on triangular lattice | Xu, Xiao Yan; Law, Kam Tuen; Lee, Patrick | In this work we dope the spinon Fermi surface phase by studying the t-J model with four-spin ring exchange. | Session 107: Precision Many Body Physics |
| 1308 | An Auxiliary Field Quantum Monte Carlo study of the Hubbard Kanamori model | Hao, Hongxia; Rubenstein, Brenda; Shi, Hao | We study the model using the ground state Auxiliary Field Quantum Monte Carlo (AFQMC) method. | Session 107: Precision Many Body Physics |
| 1309 | Study of competing phases in the half filled Hubbard-Holstein model by “sign-free” determinantal Langevin simulations | Karakuzu, Seher; Sorella, Sandro | Here, we apply numerical methods in order to investigate the ground state thermodynamic limit properties of the so-called Hubbard-Holstein model in two spatial dimensions. | Session 107: Precision Many Body Physics |
| 1310 | Hubbard model analysis with dynamical mean-field theory and selective configuration interaction | Mejuto Zaera, Carlos; Tubman, Norm; Whaley, Birgitta | Here, we present numerical results obtained using adaptive selected configuration interaction (ASCI) techniques for both finite size clusters and the thermodynamic limit, with the latter obtained by combining ASCI with dynamical mean-field theory (DMFT). | Session 107: Precision Many Body Physics |
| 1311 | Recent advances in Diagrammatic Monte Carlo | ROSSI, RICCARDO | I will discuss in particular the Connected Determinant Monte Carlo algorithm (CDet) [1, 2] and its extensions, and I will present results for the Fermi-Hubbard model as the paradigmatic strongly-correlated fermionic system. | Session 107: Precision Many Body Physics |
| 1312 | Functional renormalization group study of the three-dimensional Hubbard model | Ehrlich, Jannis; Honerkamp, Carsten | We present the extension of the truncated unity functional renormalization group (TUfRG) approach to three-dimensional lattice models for interacting fermions. | Session 107: Precision Many Body Physics |
| 1313 | Multiloop functional renormalization group for the two-dimensional Hubbard model: Loop convergence of the response functions | Tagliavini, Agnese; Hille, Cornelia; Kugler, Fabian; Andergassen, Sabine; Toschi, Alessandro; Honerkamp, Carsten | We present a functional renormalization group (fRG) study of the two dimensional Hubbard model, performed with an algorithmic implementation which lifts some of the common approximations made in fRG calculations. | Session 107: Precision Many Body Physics |
| 1314 | Ground-State Superfluid Phase Diagram of the Two-Dimensional Fermionic Hubbard Model with Next-Nearest-Neighbour Hopping | Simkovic, Fedor; Deng, Youjin; Kozik, Evgeny | In this work, we employ the Bold Diagrammatic Monte Carlo method to establish the superfluid phase diagram in terms of density and interaction strength and for several values of next-nearest-neighbour hopping. | Session 107: Precision Many Body Physics |
| 1315 | Superconducting paring induced by the Mott stripe in t-J ladders | Cheng, Chen; Mondaini, Rubem; Rigol, Marcos | Alternatively, we study a simplified ladder system with doped outer-legs and a Mott stripe core, produced by the interplay of strong repulsion and the large negative on-site potential in the inner legs. | Session 107: Precision Many Body Physics |
| 1316 | Superconductivity in the Hubbard model: a hidden-order diagnostics from the Luther-Emery phase on ladders | Tocchio, Luca Fausto; Becca, Federico; Montorsi, Arianna | Since both spin gap and parity vanish in the two-dimensional limit, we introduce the fractional generalization of spin parity and prove that it remains finite in the thermodynamic limit. | Session 107: Precision Many Body Physics |
| 1317 | Quantum Monte Carlo Study of Strongly Interacting Fermi Gases in Two Dimensions: BCS-BEC Crossover, Spin-orbit Coupling, and Dynamical Response Functions | Shi, Hao; Rosenberg, Peter; Chiesa, Simone; Vitali, Ettore; Zhang, Shiwei | We describe recent advances in auxiliary-field quantum Monte Carlo techniques, which enable calculations on large lattices to reliably compute ground-state and excited-state properties in the thermodynamic limit. | Session 107: Precision Many Body Physics |
| 1318 | “Quasielectrons in Lattice Moore�Read Models” | Manna, Sourav; Wildeboer, Julia; Nielsen, Anne E. B. | In this work we show that the singularity problem can be avoided by placing quasielectrons in fractional quantum Hall lattice systems. | Session 107: Precision Many Body Physics |
| 1319 | Dispersion Relation of the GMP Mode in the Nematic Phase of Fractional Quantum Hall States | Mehta, Umang; Son, Dam | We compute the dispersion relation for the GMP mode of the fractional quantum Hall effect in the nematic phase for Jain sequences at large N using Golkar, Nguyen, Roberts and Son’s ‘higher-spin theory’ for magnetorotons. | Session 107: Precision Many Body Physics |
| 1320 | Interacting Chern insulators: Diagrammatics well beyond the lowest order | Tupitsyn, Igor; Prokof’ev, Nikolai | We employ the Diagrammatic Monte Carlo (DiagMC) technique to (i) accurately locate topologically nontrivial phases in the (?,U)-plane (? is the inversion symmetry breaking on-site energy) and (ii) demonstrate the strong effect of typically discarded in theoretical considerations long-range part of the Coulomb interaction. | Session 107: Precision Many Body Physics |
| 1321 | Critical torus spectrum of the Gross-Neveu-Yukawa field theory | Schuler, Michael; He�elmann, Stephan; Whitsitt, Seth; Lang, Thomas; Wessel, Stefan; L�uchli, Andreas | We use a combination of Exact Diagonalization and Quantum Monte Carlo simulations to compute the energy spectrum on finite-size clusters with periodic boundaries, and perform an extrapolation to the thermodynamic limit. | Session 107: Precision Many Body Physics |
| 1322 | Unconventional pairing symmetry of interacting Dirac fermions on a ?-flux lattice | Guo, Huaiming | We demonstrate that the dominant pairing channel at strong interactions is an unconventional ds*-wave phase consisting of alternating stripes of s*- and d-wave phases. | Session 107: Precision Many Body Physics |
| 1323 | Universal Fermi-surface anisotropy renormalization for interacting Dirac fermions with long-range interactions | Adam, Shaffique; Leaw, Jia Ning; Tang, Ho Kin; Trushin, Maxim; Assaad, Fakher; Das Sarma, Sankar | Using a recently developed [1] non-perturbative and numerically-exact projective quantum Monte Carlo simulation as well as other numerical and analytic techniques, only for Dirac fermions with long-range Coulomb interactions do we find a universal square-root decrease of the Fermi-surface anisotropy [2]. | Session 107: Precision Many Body Physics |
| 1324 | Energy scales and quasi-particle behavior of fermions in the normal state of flat-band systems | Kumar, Pramod; Tuomas, Vanhala; Peotta, Sebastiano; Torma, Paivi | We address this using dynamical mean field theory (DMFT), a very well-established methodology for correlated many-body systems. | Session 107: Precision Many Body Physics |
| 1325 | Bosonic Crystalline Symmetry Protected Topological Phases beyond the Group Cohomology Proposal | Song, Hao; Xiong, Zhaoxi; Huang, Sheng-Jie | We systematically study three-dimensional bosonic topological phases protected by any space group symmetry G. | Session 107: Precision Many Body Physics |
| 1326 | High-precision data for the unitary Fermi gas from diagrammatic series with zero convergence radius | ROSSI, RICCARDO; Ohgoe, Takahiro; Van Houcke, Kris; Werner, Felix | In this talk I will mainly focus on the unitary Fermi gas (spin 1/2 fermions with contact interactions in 3D, which describes cold atomic gases at a Feshbach resonance) in the normal phase. | Session 107: Precision Many Body Physics |
| 1327 | Understanding the metal-insulator transition in VO2 from quantum Monte Carlo, DMFT, and experiment | Krogel, Jaron; Kylanpaa, Ilkka; Ganesh, Panchapakesan; Lechermann, Frank; Heinonen, Olle; Kent, Paul | Due to strong correlations in VO2, beyond DFT approaches are required and here we study pristine and non-stoichiometric VO2 with quantum Monte Carlo and DMFT. | Session 107: Precision Many Body Physics |
| 1328 | Computable formulae for Hall and Nernst Coefficients of Strongly Correlated Metals | Auerbach, Assa; Khait, Ilia | Computable formulae for Hall and Nernst Coefficients of Strongly Correlated Metals | Session 107: Precision Many Body Physics |
| 1329 | Self Consistent Auxiliary Field Quantum Monte Carlo Method for Realistic Materials | Zhang, Shiwei; Shi, Hao | We introduce a systematically improvable constraint for realistic materials. | Session 107: Precision Many Body Physics |
| 1330 | Optimized multi-determinant trial wavefunctions for Constrained Path Monte Carlo | Clay, R. Torsten | We present results for PIRG-CPMC calculations on frustrated Hubbard models, comparing energies, spin correlations, and superconducting pair-pair correlations. | Session 107: Precision Many Body Physics |
| 1331 | Skeleton diagrammatic expansions with screened Hubbard interaction versus multivaluedness of the Luttinger-Ward functional | Kim, Aaram; Kozik, Evgeny | By varying the level of screening in the interaction line; bare U, random-phase approximation W rpa, and fully dressed W exact, we present the convergence properties of the different bold series in connection with multiple branches of the LWF. | Session 107: Precision Many Body Physics |
| 1332 | Cluster Perturbation Theory Applied to Two-Particle Correlation Functions | Raum, Peter; Scarola, Vito; Maier, Thomas | We benchmark our method with the one-dimensional Fermi-Hubbard model at half-filling and compare with known results. | Session 107: Precision Many Body Physics |
| 1333 | Optimized higher-order Lie-Trotter-Suzuki decompositions for two and more terms | Zhang, Yikang; Barthel, Thomas | We present some optimized decompositions for n=2 and new higher-order decompositions for n=3,4 which are needed for one-dimensional systems with longer-ranged interactions or quantum systems in higher dimensions. | Session 107: Precision Many Body Physics |
| 1334 | Diagrammatic Monte Carlo approach to angular momentum in quantum many-body systems | Bighin, Giacomo; Tscherbul, Timur; Lemeshko, Mikhail | We introduce a Diagrammatic Monte Carlo (DiagMC) approach to molecular impurities, possessing rotational degrees of freedom [1]. | Session 107: Precision Many Body Physics |
| 1335 | Electronic structure of semiconductor nanoparticles from stochastic evaluation of imaginary-time path integral: nonrelativistic U(1) lattice gauge theory in the Kohn-Sham basis | Kryjevski, Andrei; Luu, Thomas | Electronic structure of semiconductor nanoparticles from stochastic evaluation of imaginary-time path integral: nonrelativistic U(1) lattice gauge theory in the Kohn-Sham basis | Session 107: Precision Many Body Physics |
| 1336 | Insulating states from increased kinetic energy: counterintuitive physics in the basic model of organic conductors and superconductors | Kantian, Adrian; Giamarchi, Thierry | In the presented work, we show that the U-V model can give rise to surprising physics in which an insulating state emerges from increased transverse kinetic energy, by combining large-scale DMRG results with analytic RG of bosonized models of the 2-leg U-V Hubbard ladder. | Session 107: Precision Many Body Physics |
| 1337 | Precision spectral densities in correlated systems | Hallberg, Karen; N��ez Fern�ndez, Yuriel | We develop an efficient numerical method to calculate spectral densities of complex impurities based on the Density Matrix Renormalization Group (DMRG) and use it as the impurity solver of the Dynamical Mean Field Theory (DMFT). | Session 107: Precision Many Body Physics |
| 1338 | Approximation to an exchange-correlation functional on the basis of renormalizatio-group theory | Oliveira, Luiz; Zawadzki, Krissia | To take a nonlocal approach, we resort to renormalization-group concepts. | Session 107: Precision Many Body Physics |
| 1339 | Sign-blessed Diagrammatic Monte Carlo Method for Electrons Interacting with the Long-range Coulomb Repulsion | Chen, Kun; Haule, Kristjan | We apply the solver to the quintessential problem of solid state, the uniform electron gas (UEG), which is at the heart of the density functional theory (DFT) success in describing real materials, yet it has not been adequately solved for over 90 years. | Session 107: Precision Many Body Physics |
| 1340 | First principles study of correlation effects in solids | Iskakov, Sergei; Rusakov, Alexander; Gull, Emanuel; Zgid, Dominika | In this talk we present the finite-temperature statistical mechanics formulation of perturbation theory self-consistently to second order, and obtain a solution for periodic three-dimensional solids in a fully self-consistent conserving approximation. | Session 107: Precision Many Body Physics |
| 1341 | Theory of Time-Resolved Raman Scattering in Correlated Systems: Ultrafast Engineering of Spin Dynamics and Detection of Thermalization | Chen, Cheng-Chien; Wang, Yao; Devereaux, Thomas | Here we develop the theory of time-resolved Raman scattering, which can be a powerful tool for nonequilibrium studies. | Session 107: Precision Many Body Physics |
| 1342 | Charge self-consistent DFT + DMFT study on magnetism of transition metals | Han, Mancheon; Choi, Hyoung Joon | We studied the magnetic properties of period 4 transition metals using our charge self-consistent density function theory + dynamical mean field theory (DFT + DMFT) program. | Session 107: Precision Many Body Physics |
| 1343 | Almost exact energies for the G1/G2 set with the semistochastic heat-bath configuration interaction method | Yao, Yuan; Li, Junhao; Umrigar, Cyrus | Almost exact energies for the G1/G2 set with the semistochastic heat-bath configuration interaction method | Session 107: Precision Many Body Physics |
| 1344 | One-electron spectral properties of self-assembled structures and defects on semiconductors | Carmelo, Jose; Cadez, Tilen; Ohtsubo, Yoshiyuki; Kimura, Shin-ichi; Campbell, David | We extend the universal theory for the finite-energy spectral properties of a wide class of one-dimensional correlated lattice systems whose microscopic mechanisms involve phase shifts imposed by a mobile quantum impurity to electronic lattice systems with long-range interactions. | Session 107: Precision Many Body Physics |
| 1345 | On the limitations of cRPA downfolding | Honerkamp, Carsten; Shinaoka, Hiroshi; Assaad, Fakher; Werner, Philipp | We check the accuracy of the constrained random phase approximation (cRPA) downfolding scheme by considering one-dimensional two- and three-orbital Hubbard models with a target band at the Fermi level and one or two screening bands away from the Fermi level. | Session 107: Precision Many Body Physics |
| 1346 | Maximum quantum entropy method: the analytic continuation of matrix-valued Green’s functions | Sim, Jae-Hoon; Han, Myung Joon | Here we have extended the MEM to the matrix-valued function, introducing quantum relative entropy as a regularization function [1]. | Session 107: Precision Many Body Physics |
| 1347 | Diagrammatic Quantum Monte Carlo for Molecular Systems | Li, Jia; Wallerberger, Markus; Gull, Emanuel | In this talk, we aim to introduce our DiagMC implementation for multi-orbital systems, and discuss the difficulties and potentials when it is applied to realistic molecular systems. | Session 107: Precision Many Body Physics |
| 1348 | Monte Carlo Studies of Quantum Critical Metals | Berg, Erez | I will review the status of the understanding of metallic quantum criticality, and the recent progress made by QMC simulations, focusing on the cases of spin density wave and Ising nematic criticality. | Session 107: Precision Many Body Physics |
| 1349 | Real time Quantum Monte Carlo for out of equilibrium strongly correlated systems. | Bertrand, Corentin; Maillard, Antoine; Florens, Serge; Parcollet, Olivier; Waintal, Xavier | We present a systematic method to sum this expansion using conformal transformations and some recent benchmarks on Green functions in quantum impurity models in equilibrium and out of equilibrium. | Session 107: Precision Many Body Physics |
| 1350 | Infinite boundary conditions as a current source for impurity conductance in a quantum wire | Iaizzi, Adam; Lo, Chung-Yu; Chen, Pochung; Kao, Ying-Jer | Here we consider the problem of conductance across an impurity (or quantum dot) connected to metallic leads. | Session 107: Precision Many Body Physics |
| 1351 | Resonant Tunneling with Dissipation in a Spin-full Quantum Dot. | Larson, Trevyn; Zhang, Gu; Ke, Chung-Ting; Wei, Ming-Tso; Baranger, Harold; Finkelstein, Gleb | We study resonant tunneling through a nanotube quantum dot subject to a dissipative environment. | Session 107: Precision Many Body Physics |
| 1352 | Quench dynamics of superconducting fluctuations and optical conductivity in a disordered system | Mitra, Aditi; Lemonik, Yonah | Here we consider the role of non-equilibrium superconducting fluctuations in such systems, generated by an interaction quench, considering the limit of large static disorder. | Session 107: Precision Many Body Physics |
| 1353 | Many-body Dynamic Structure Factors with Phase Space methods | Wurtz, Jonathan; Polkovnikov, Anatoli | This talk will detail work on one such semi-classical description, the Cluster Truncated Wigner Approximation, which approximates dynamics in a high-dimensional classical phase space. | Session 107: Precision Many Body Physics |
| 1354 | Berry’s ansatz in Fock space: beyond random matrix theory for many-body quantum chaos | Dubertrand, Remy; Urbina, Juan-Diego; Richter, Klaus | This study highlights how semiclassical techniques can be efficient for many-body chaos beyond the universal regime of random matrix theory. | Session 107: Precision Many Body Physics |
| 1355 | Floquet behavior of correlated systems with light-matter coupling | Kalthoff, Mona; Freericks, James; Uhrig, Goetz; Kennes, Dante; Rubio, Angel; Sentef, Michael | Floquet behavior of correlated systems with light-matter coupling | Session 107: Precision Many Body Physics |
| 1356 | Ultrafast many-body correlations in an excitonic insulator out of equilibrium | Tuovinen, Riku; Golez, Denis; Sch�ler, Michael; Werner, Philipp; Eckstein, Martin; Sentef, Michael | A fast time propagation method for nonequilibrium Green’s functions [1] based on the generalized Kadanoff-Baym Ansatz (GKBA) [2] is applied to a lattice system with a symmetry-broken equilibrium phase, namely an excitonic insulator [3]. | Session 107: Precision Many Body Physics |
| 1357 | Real-time quantum Monte Carlo for the spin-boson model | Goulko, Olga; Cohen, Guy; Goldstein, Moshe | This fundamental, yet non-trivial model describes dissipation in a quantum system and can be mapped to an impurity coupled to interacting electron leads. | Session 107: Precision Many Body Physics |
| 1358 | Heating Dynamics in a Periodically Driven SYK-Model | Kuhlenkamp, Clemens; Weidinger, Simon; Knap, Michael | Using an exact field theoretic approach we determine two regimes in the heating dynamics. | Session 107: Precision Many Body Physics |
| 1359 | Entropy of the (1+1)-dimensional directed percolation | Harada, Kenji | We investigate the informational aspect of a (1+1)-dimensional directed percolation which can be regarded as a reaction-diffusion process in a one-dimensional system and is a canonical model of a non-equilibrium continuous phase transition into an absorbing state. | Session 107: Precision Many Body Physics |
| 1360 | Entanglement production and information scrambling in a noisy spin system | Knap, Michael | We study theoretically entanglement and operator growth in a spin system coupled to an environment, which is modeled with classical dephasing noise. | Session 107: Precision Many Body Physics |
| 1361 | Real time correlations and spectral functions in numerical linked-cluster expansions | Khatami, Ehsan | Here, I will discuss how dynamical properties such as various spectral functions of quantum lattice models can be obtained using the method through real time, as opposed to imaginary time, correlation functions at temperatures relevant to current optical lattice experiments. | Session 107: Precision Many Body Physics |
| 1362 | Thermodynamics of the disordered Hubbard model from numerical linked-cluster expansions | Park, Jacob; Scalettar, Richard; Khatami, Ehsan | Here we utilize the numerical linked-cluster expansion technique, extended to deal with disordered quantum lattice models in the thermodynamic limit, and study exact thermodynamic properties of the disordered Fermi-Hubbard model on the square lattice. | Session 107: Precision Many Body Physics |
| 1363 | Low-energy physics of the bilinear-biquadratic spin-1 chain | Binder, Moritz; Barthel, Thomas | Here, we apply an efficient density matrix renormalization group (DMRG) algorithm utilizing infinite boundary conditions to compute precise dynamic spin structure factors for a comprehensive set of points in the phase diagram. | Session 107: Precision Many Body Physics |
| 1364 | Ground states of a J-Q model with long-range antiferromagnetic interactions | Yang, Sibin; Yao, Dao-Xin; Sandvik, Anders | From our numerical data and for the model we studied, the Binder-cumulant method has advantages in determining the quantum critical AFM-QLRO point and a certain range of the QLRO-VBS transition line, while the level crossing method is more suitable for the other region of QLRO-VBS transition. | Session 107: Precision Many Body Physics |
| 1365 | Nature of spin-liquid phase in 2D spin-1/2 J_1-J_2 triangular antiferromagnet | Sedrakyan, Tigran; Moessner, Roderich; Kamenev, Alex | We study the stability of ordered states in a two-dimensional quantum spin-1/2 J_1-J_2 XY antiferromagnet on a frustrated triangular lattice using composite fermion representation of spins. | Session 107: Precision Many Body Physics |
| 1366 | Anomaly matching and symmetry-protected critical phases in SU(N) spin systems in 1+1 dimensions | Yao, Yuan; Hsieh, Chang-Tse; Oshikawa, Masaki | We study (1+1)-dimensional SU(N) spin systems in the presence of the global SU(N) rotation and lattice translation symmetries. | Session 107: Precision Many Body Physics |
| 1367 | Efficient generation of many-body entangled states by multilevel oscillations | Xu, Peng | We propose a fast method utilizing multilevel oscillations to generate high-fidelity massive entangled states in an antiferromagnetic spin-1 Bose-Einstein condensate (BEC). | Session 107: Precision Many Body Physics |
| 1368 | Efficient Two Dimensional Tensor Network Algorithms for Systems with Long-Range Interactions | O’Rourke, Matthew; Li, Zhendong; Chan, Garnet | In order to utilize the power of these methods to study systems with physically realistic long-range interactions, we discuss a practical and efficient representation of the Hamiltonian of such systems as a projected entangled-pair operator (PEPO). | Session 107: Precision Many Body Physics |
| 1369 | Solving constrained counting problems with tensor networks | Kourtis, Stefanos | In this talk, I will present newly developed physics-inspired methods for the solution of counting constraint satisfaction problems (#CSPs). | Session 107: Precision Many Body Physics |
| 1370 | Non-Abelian symmetries in thermal tensor network states | Chen, Bin-Bin; Li, Wei; Weichselbaum, Andreas | Here, in particular, we discuss our general implementation of the SU(2) spin together with U(1) charge symmetry based on the QSpace [1] tensor library in the recently developed thermal tensor network simulations including the series expansion thermal tensor network (SETTN) [2], and exponential thermal renormalization group (XTRG) [3]. | Session 107: Precision Many Body Physics |
| 1371 | Exponential Thermal Tensor Network Approach for Quantum Lattice Models | Weichselbaum, Andreas; Chen, Bin-Bin; Chen, Lei; Chen, Ziyu; Li, Wei | We speed up thermal simulations of quantum many-body systems in one- (1D) and two-dimensional (2D) models in an exponential way by iteratively projecting the thermal density matrix ??e -?H onto itself. | Session 107: Precision Many Body Physics |
| 1372 | Current-controlled switching of diamagnetism in Ca3(Ru1-xTix)2O7 | Maeno, Yoshiteru; Sow, Chanchal; Numasaki, Ryo; Mattoni, Giordano; Yonezawa, Shingo; Kikugawa, Naoki; Uji, Shinya | Here, we demonstrate that DC current can trigger in situ switching between the impurity-induced Mott insulating state and diamagnetic semimetallic state of the bilayered ruthenate Ca 3Ru 2O 7. | Session 108: Ruthenates and Nickelates |
| 1373 | How does optical response of SrRuO3 and CaRuO3 thin films deviate from Fermi liquid predictions? | Wang, Youcheng; Boss�, Grace; Nair, Hari; Ruf, Jacob; Cheng, Bing; Schlom, Darrell; Shen, Kyle; Armitage, Norman | Here we present time domain THz measurements of clean thin films of SrRuO 3 and CaRuO 3. | Session 108: Ruthenates and Nickelates |
| 1374 | 17O NMR Studies Applied to the Uniaxial Stress-Tuned Fermi-Liquid Crossover in Sr2RuO4 | Chronister, Aaron; Pustogow, Andrej; Luo, Yongkang; Kikugawa, Naoki; Sokolov, Dmitry; Jerzembeck, Fabian; Mackenzie, Andrew; Hicks, Clifford; Bauer, Eric; Brown, Stuart | 17O NMR Studies Applied to the Uniaxial Stress-Tuned Fermi-Liquid Crossover in Sr2RuO4 | Session 108: Ruthenates and Nickelates |
| 1375 | Collective modes in Sr2RuO4 measured with momentum-resolved EELS (M-EELS) | Husain, Ali; Mitrano, Matteo; Rak, Melinda; Rubeck, Samantha; Nakamura, Fumihiko; Sow, Chanchal; Maeno, Yoshiteru; Abbamonte, Peter | Here, we report on M-EELS measurements of Sr 2RuO 4, a bad metal which crosses over to a Fermi Liquid at T=40K. | Session 108: Ruthenates and Nickelates |
| 1376 | Magnetisation density and electronic structure of Sr3Ru2O7. | Duffy, Jonathan; Dugdale, Stephen; Giblin, Sean; Taylor, Jonathan; Perry, Robin; Maeno, Yoshiteru; Butchers, Matthew; Forgan, Ted | We have performed a study of the magnetisation density in the metamagnetic state combining a magnetic Compton scattering experiment with electronic structure calculations. | Session 108: Ruthenates and Nickelates |
| 1377 | DMFT+NRG study of orbital differentiation in three-orbital Hubbard models | Kugler, Fabian; Lee, Seung-Sup; Zingl, Manuel; Georges, Antoine; Kotliar, Gabriel; Von Delft, Jan; Weichselbaum, Andreas | Here, we present a real-frequency dynamical mean-field theory and numerical renormalization group (DMFT+NRG) analysis of the OSMP driven by CFS in a three-orbital model and illustrate the singular Fermi-liquid properties of this phase [2]. | Session 108: Ruthenates and Nickelates |
| 1378 | Multi-Wavelength Near-Field Imaging of the Temperature & Current Induced Metal to Insulator Transitions in Ca2RuO4 | Vitalone, Rocco; Foutty, Benjamin; McLeod, Alexander; Wieteska, Jedrzej; Sow, Chancal; Nakamura, Fumihiko; Maeno, Yoshiteru; Pasupathy, Abhay; Basov, Dimitri | In this study, we examine the temperature driven insulator-metal transition (IMT) in single crystals of Ca 2RuO 4 at the nanoscale with wavelengths ranging from 10 �m to 16 �m, where a strong phonon resonance characterizes the insulating phase. | Session 108: Ruthenates and Nickelates |
| 1379 | Effect of uniaxial strain on the metal-insulator transition in Ti-substituted Ca3Ru2O7 | Wieteska, Jedrzej; McLeod, Alexander; Foutty, Ben; Vitalone, Rocco; Peng, Jin; Wang, Yu; Mao, Zhiqiang; Basov, Dimitri; Narayan, Abhay | We present results of electrical transport studies on the metal-insulator transition (MIT) in 10% Ti-substituted Ca3Ru2O7 under uniaxial strain. | Session 108: Ruthenates and Nickelates |
| 1380 | Novel uniaxial strain device for transport and scanning probe experiments | Foutty, Ben; Wieteska, Jedrzej; Edelberg, Drew; McLeod, Alexander; Vitalone, Rocco; Turkel, Simon; Narayan, Abhay; Basov, Dimitri | We present a method of strain application that relies on stacks of shear piezoelectric actuators to apply up to 1% uniaxial extension and compression at cryogenic temperatures homogeneously to up to 100 um square regions of materials ranging from transition metal dichalcogenides to ruthenates. | Session 108: Ruthenates and Nickelates |
| 1381 | Nano-resolved strain control and polar modulation of the Mott transition in a bilayer ruthenate | McLeod, Alexander; Jing, Ran; Wieteska, Jedrzej; Foutty, Benjamin; Lei, Shiming; Zu, Rui; Miao, Leixin; Agueda Lopez, Kleyser; Peng, Jin; Mao, Zhiqiang; Puggioni, Danilo; Rondinelli, James; Alem, Nasim; Gopalan, Venkatraman; Basov, Dimitri | We report cryogenic (T<100K) infrared nano-imaging (nano-IR) of 5% and 10% Ti-doped crystals revealing spontaneous patterns of striped phase coexistence through the thermal first-order Mott transition, and demonstrate nucleation and manipulation of metallic stripes through in situ uniaxial strain. | Session 108: Ruthenates and Nickelates |
| 1382 | Ionic gating of correlated perovskite nickelates | Sun, Yifei; Zhang, Zhen; Zhou, Hua; Ramanathan, Shriram | In this work, we demonstrate that an ionic liquid gate can drive the fast motion of Li + into and out of correlated perovskite nickelates such as SmNiO 3 and NdNiO 3. | Session 108: Ruthenates and Nickelates |
| 1383 | First Reconstruction of the Antiferromagnetic Order Parameter in NdNiO3 from Resonant Soft X-ray Bragg Ptychography. | Levitan, Abraham; Li, Jiarui; Mertes, Kevin; Allain, Marc; Tripathi, Ash; Hu, Wen; Sandberg, Richard; Mazzoli, Claudio; Comin, Riccardo | We report on a first step towards fully characterizing that nanoscale texture using resonant soft x-ray coherent Bragg ptychography at the CSX beamline of NSLS-II. | Session 108: Ruthenates and Nickelates |
| 1384 | Similarities and Differences Between the Nickelate LaNiO2 and Isoelectronic Cuprate Superconductors | Hepting, Matthias; Li, Danfeng; Lu, Haiyu; Jia, Chunjing; Feng, Xiao; Hikita, Yasuyuki; Moritz, Brian; Paris, Eugenio; Tseng, Yi; Hussain, Zahid; Chuang, Yi-De; Shen, Zhixun; Thorsten, Schmitt; Devereaux, Thomas; Hwang, Harold; Lee, Wei-Sheng | To address this issue, we have investigated LaNiO 2 and isostructural SrCuO 2 thin films by x-ray absorption spectroscopy (XAS) and resonant inelastic x-ray scattering (RIXS) at the O K -and Ni L-edges. | Session 108: Ruthenates and Nickelates |
| 1385 | On the mysterious magnetic susceptibility of LaNiO3 | Foyevtsov, Oleksandr; Mitchell, John; Sawatzky, George | In this talk, we propose an explanation of the recent data assuming temperature dependent disproportionation of localized magnetic moments. | Session 108: Ruthenates and Nickelates |
| 1386 | Vison crystals in an extended Kitaev honeycomb model | Halasz, Gabor | We introduce an extension of the Kitaev honeycomb model by including four-spin interactions that preserve the local gauge structure and hence the integrability of the original model. | Session 109: Quantised Transport and Disorder in Kitaev Magnets |
| 1387 | Field dependent magnetic excitations and possible topological transitions in ?-RuCl3 | Balz, Christian | Here I will discuss new high-resolution measurements of the excitations at fields spanning these two transitions. | Session 109: Quantised Transport and Disorder in Kitaev Magnets |
| 1388 | A spin�orbital-entangled quantum liquid on a honeycomb lattice | Takagi, Hidenori | We found at low temperatures below ~5K that the magnetization M, the NMR 1/ T 1 and the specific heat C are dominated by the contributions from spin defects and follows a scaling with B/ T. | Session 109: Quantised Transport and Disorder in Kitaev Magnets |
| 1389 | The scale-invariant magnetic anisotropy of RuCl3 | Modic, Kimberly; Shekhter, Arkady; Ramshaw, Brad; McDonald, Ross; Moll, Philip | We present a detailed study of the magnetic anisotropy of RuCl 3 � a layered honeycomb structure of effective spin-1/2 moments. | Session 109: Quantised Transport and Disorder in Kitaev Magnets |
| 1390 | Quantization of the thermal Hall conductivity at small Hall angles | Ye, Mengxing | We show that due to the bulk and edge mixing of energy propagation, the temperature gradient of the bulk phonons develops a transverse component which may contribute to a quantized effective thermal Hall conductance. | Session 109: Quantised Transport and Disorder in Kitaev Magnets |
| 1391 | Novel Vistas in Thermal Transport: Relaxons, Frictions, Viscosities, and Coherences | Marzari, Nicola | We examine the emergence of correlated transport phenomena in systems described by the linearized Boltzmann transport equation (LBTE), with examples then centered around heat transport. | Session 110: Manifestations of Phonon Hydrodynamics in Thermal Transport |
| 1392 | Observation of the Poiseuille flow of phonons in black phosphorus | Machida, Yo | In the presentation, we report on a study of heat flow in bulk black phosphorus, a material attracting renewed attention for a variety of fundamental and technological reasons. | Session 110: Manifestations of Phonon Hydrodynamics in Thermal Transport |
| 1393 | Phonon Hydrodynamics in Graphene and Graphite | Chen, Gang; Ding, Zhiwei; Huberman, Samuel; Duncan, Ryan; Chiloyan, Vazrik; Nelson, Keith; Maznev, Alexei | Recently, we predict based on first principles calculations that hydrodynamic phonon transport can occur in suspended graphene at significantly higher temperatures and wider temperature ranges compared to bulk materials. | Session 110: Manifestations of Phonon Hydrodynamics in Thermal Transport |
| 1394 | Thermal conductivity of strontium titanate: signatures of phonon hydrodynamics | Behnia, Kamran | Thermal conductivity of strontium titanate: signatures of phonon hydrodynamics | Session 110: Manifestations of Phonon Hydrodynamics in Thermal Transport |
| 1395 | Hydrodynamic heat transport in semiconductors at the nanoscale | Alvarez, Xavier; Bafaluy, Javier; Camacho, Juan; Cartoixa, Xavier; Torres, Pol; Beardo, Albert; Sendra, Lluc | Kinetic Collective Model (KCM) has been developed to describe heat transport using two key concepts. | Session 110: Manifestations of Phonon Hydrodynamics in Thermal Transport |
| 1396 | Circular photogalvanics study of BSCCO high temperature superconductors | Lim, Se Joon; Greven, Martin; Kapitulnik, Aharon | Here, we report signatures of inversion symmetry breaking in another family of cuprate high temperature superconductors, Bi2Sr2CaCu2O8+d, using circular photogalvanic measurements. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1397 | Three Laws of Electronic Thermal Conductivity of High Temperature Superconductors via Dipolon Theory | Sharma, Ram | Here we present the three laws of ETC which explain not only the origin but also the behavior of ETC in HTSCs: First Law: The ETC is due to the rate of increase of the quasiparticle energy distribution (ROIOTQED) with temperature particularly near the Fermi level. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1398 | High Pressure 3D to 2D Tuning of Magnetism in Cuprates | Huecker, Markus; Gu, Genda; Tranquada, John; B�chner, Bernd | In an attempt to dissect this problem into its various parts, here we highlight the impact of lattice distortions on the pristine magnetism of a cuprate parent compound. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1399 | Uniaxial strain susceptibilities of superconducting Tc and charge order transition temperature from sound velocity measurements in YBCO | LeBoeuf, David; Benhabib, Siham; Frachet, Mehdi; lalibert�, francis; proust, cyril; Loew, Toshinao; Porras, Juan; Le Tacon, Mathieu; Keimer, Bernhard | We study the uniaxial strain dependence of superconducting T c in YBCO as a function of doping using ultrasounds. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1400 | Noisy defects in a doped Mott insulator | Massee, Freek; Huang, Yingkai; Golden, Mark; Aprili, Marco | I will present how, by using atomic scale shot-noise measurements in the high temperature superconductor Bi2Sr2CaCu2O8+ x, we visualize sub-nanometre sized objects where remarkable dynamics leads to an enhancement of the tunnelling current noise by at least an order of magnitude. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1401 | Steady-state superconductivity in electronic materials with repulsive interactions | Hart, Oliver; Goldstein, Garry; Chamon, Claudio; Castelnovo, Claudio | We study the effect of laser driving on a minimal model for a hexagonal two-dimensional material with broken inversion symmetry. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1402 | Tuning the Josephson vortex lattice structure with pancake vortices in Bi2Sr2CaCu2O8+? single crystals | Bending, Simon; Curran, Peter; Mohammed, Hussen; Koshelev, Alexei; Tsuchiya, Yuji; Tamegai, Tsuyoshi | We establish the exact evolution of vortex-chain phases as the out-of-plane field is increased and identify especially stable structures spaced by an integer number of rows of interstitial pancake vortex stacks. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1403 | Enhancement of critical current density and mechanical properties of BiPb-2223 superconductor phase added with Nano-sized Gd-123 phase | Abou-Aly, Aly; Mohammed, Nayera; barakat, mai; Hassan, Mohammed; Awad, Ramadan | Enhancement of critical current density and mechanical properties of BiPb-2223 superconductor phase added with Nano-sized Gd-123 phase | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1404 | Structural Phase Transitions: a Limiting Factor for Quantum Criticality and Superconductivity in La1.6?xNd0.4SrxCuO4 | Ma, Qianli; Dragonmir, Mirela; Clancy, James; Huq, Ashfia; Gaulin, Bruce | We present our recent findings on the structural transitions in the La 1.6?xNd 0.4Sr xCuO 4 system. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1405 | d-wave Andreev reflection study of the ab-plane proximity effect in cuprate/manganite and cuprate/nickelate thin films | Chen, Rainni; Zhang, Chao; Granstrom, Chris; Wei, John | In this work, we extend these prior STS studies to YBCO/LCMO bilayers oriented along the <110> axis, a geometry that is expected produce the most robust d-wave Andreev resonance states. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1406 | Atomically thin high-temperature superconductors | Zhu, Yuying; Liao, Menghan; Zhang, Jin; Zhong, Ruidan; Schneeloch, John; Gu, Genda; Jiang, Kaili; Zhang, Ding; Ma, Xucun; Xue, Qikun | We employ a novel solid state gating technique to effectively tune the carrier density of thin flakes, inducing the superconductor-insulator transition (SIT) in BSCCO. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1407 | New Mechanism of Umklapp Scattering in Cuprate High-Tc Superconductors | Li, Rong; She, Zhen-Su | We propose a novel mechanism of dissipative umklapp scattering contributing to anomalous transport by fluctuating order beyond fermi surface reconstruction to electronic spectrum. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1408 | Reconfigurable SQUID Arrays | Yu, Sichao; Mayer, William; Dartiailh, Matthieu; Wickramasinghe, Kaushini; Yuan, Joseph; Shabani, Javad | We numerically study tunable SQUID arrays with various circuit geometries. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1409 | Scanning SQUID Microscopy on fractional flux quanta with on-chip field control | Reith, Pim; Faley, Michael; Satrya, Christoforus Dimas; Golubov, Alexander; Hilgenkamp, Hans | We have demonstrated the ability to freely change between the +1/2 ? 0 and -1/2 ? 0 states. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1410 | Modeling Resonances in the Current-Voltage Characteristics of SQUID Susceptometers | Davis, Samantha; Kirtley, John; Moler, Kathryn | Looking forward, we aim to extend the model to encompass all the resonances that appear in experimental data. | Session 111: Superconductivity: Copper Oxide – Methods and Probes |
| 1411 | Making Matter from Light: Photon Mott Insulators and Topological Fluids | Simon, Jonathan | I will describe work at the University of Chicago harnessing these tools to assemble quantum matter from light: in a collaboration between the Simon and Schuster labs, we have demonstrated dissipative stabilization of a Mott insulator of microwave photons, trapped in an array of transmon qubits; in the Simon lab we have demonstrated that a twisted optical resonator generates artificial magnetic fields for photons trapped within it; we have now employed Rydberg atoms to mediate interactions between these photons and are exploring topological fluids of light. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1412 | Dynamically Tuning One Dimensional Systems Across Quantum Phase Transitions: Classical and Quantal Defects. | Millis, Andrew; Kennes, Dante | Dynamically Tuning One Dimensional Systems Across Quantum Phase Transitions: Classical and Quantal Defects. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1413 | Nonequilibrium Mass Transport in the 1D Fermi-Hubbard Model | Stolpp, Jan; Scherg, Sebastian; Kohlert, Thomas; Herbrych, Jacek; Bordia, Pranjal; Schneider, Ulrich; Heidrich-Meisner, Fabian; Bloch, Immanuel; Aidelsburger, Monika | We report on the results of a combined experimental and numerical study of nonequilibrium dynamics of ultracold fermions in a 1d lattice induced by quenching the trapping potential to zero [1]. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1414 | Universal Aspects of Operator Thermalization in Hamiltonian Dynamics | Parker, Daniel; Cao, Xiangyu; Altman, Ehud | We describe a conjectural form for super-operator Green’s functions in thermalizing systems at infinite temperature in any dimension. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1415 | Observation of Dynamical Quantum Phase Transition in Antiferromagnetic Spinor Bose-Einstein Condensates in a short time region | Qiu, LiYuan; Yang, Haoxiang; Tian, Tian; Liang, Haiyu; chu, anjun; Yang, Yanbin; Liu, Yingmei; Duan, Luming | In this work, we show direct evidence of the dynamical quantum phase transition(DQPT) in antiferromagnetic spin-1 Na Bose-Einstein condensate system. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1416 | Exponentially fast dynamics of chaotic quantum many-body systems | Santos, Lea; Borgonovi, Fausto; Izrailev, Felix | We demonstrate analytically and numerically that in isolated quantum systems of many interacting particles, the number of many-body states participating in the evolution after a quench increases exponentially in time, provided the eigenstates are delocalized in the energy shell. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1417 | Spin drag in a one-dimensional quantum wire | Visuri, Anne-Maria; Giamarchi, Thierry | Motivated by recent transport experiments with ultracold atoms [1, 2], we investigate analytically and numerically the possibility of spin drag of repulsively interacting fermions in a one-dimensional wire, where the ground state is a spin density wave. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1418 | Perfect oscillatory dynamics from quantum many-body scars | Choi, Soonwon; Turner, Christopher; Michailidis, Alexios; Ho, Wen Wei; Pichler, Hannes; Qi, Xiaoliang; Abanin, Dmitry; Serbyn, Maksym; Papic, Zlatko; Lukin, Mikhail | We show that this seemingly perfect oscillatory dynamics can be understood via an emergent large SU(2)-spin undergoing precession, contained within a special subspace of the many-body Hilbert space, while the rest of the system remains ergodic. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1419 | Cooperative Breakdown of the Oscillator Blockade in the Dicke Model | Reiter, Florentin; Nguyen, Thanh Long; Home, Jonathan; Yelin, Susanne | Spin-boson models provide an interaction between atoms and harmonic oscillators and lie at the heart of quantum science. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1420 | Hydrodynamic behavior of non-interacting quantum particles in presence of dephasing | Shtanko, Oles; Lloyd, Seth | We provide a detailed analysis of the phenomenon and derive equations for quasi-viscous flow. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1421 | Scalling theory of quantum ratchet in low temperature limit | Hamamoto, Keita; Park, Takamori; Ishizuka, Hiroaki; Nagaosa, Naoto | Here, we clarified the detailed low temperature behavior of the steady velocity and mobility of a particle under the ratchet potential both analytically and numerically. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1422 | Phonon excitations in a one dimensional Bose gas | Cataldini, Federica; Rauer, Bernhard; Schweigler, Thomas; Ji, SiCong; Tajik, Mohammadamin; Sabino, Joao; Schmiedmayer, Joerg | We implement a shaking process that modulates the box walls symmetrically at a fixed frequency. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1423 | Exact strong-ETH violating eigenstates and quasiparticle descriptions of many-body scar states in the Rydberg-blockaded atom chain | Lin, Cheng-Ju; Motrunich, Olexei | We show that the whole tower of Z2 many-body scar states can be excellently approximated as single or multiple “quasiparticle excitations” on top of our exact E = 0 states, and propose a quasiparticle explanation of the strong oscillations observed in experiments. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1424 | Observation of Non-Gaussian Statistics and Levy Flights in Nitrogen Vacancy Centers | Levonian, David; Goldman, Michael; De Greve, Kristiaan; Yelin, Susanne; Lukin, Mikhail | Observation of Non-Gaussian Statistics and Levy Flights in Nitrogen Vacancy Centers | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1425 | Detection of quantum phases via out-of-time-order correlators | Dag, Ceren; Sun, Kai; Duan, Luming | Detection of quantum phases via out-of-time-order correlators | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1426 | Beyond Bose Fireworks: Stimulated Emission of Exotic Shaken Condensates | Fu, Han; Yoo, Jooheon; Feng, Lei; Chin, Cheng; Levin, Kathryn | We seek to fulfill this promise by presenting numerical simulations of analogous fireworks patterns in more complex systems. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1427 | Dynamical critical behavior of long-range spin models | Titum, Paraj; Maghrebi, Mohammad | Specifically, we identify regimes when the stationary state at long times exhibits a non-thermal scaling behavior, and describe the signatures in the entanglement. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1428 | Floquet resonances from integrability: Spin polarization in a driven central spin model | Claeys, Pieter; De Baerdemacker, Stijn; Caux, Jean-S?bastien | Using the central spin model as an application, we show how such controlled driving processes can lead to a polarization-based decoupling of the central spin from its decoherence-inducing environment at resonance. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1429 | Floquet-Induced Superfluidity with Periodically Modulated Interactions of Two-Species Hardcore Bosons in a One-dimensional Optical Lattice | Hu, Shijie; Wang, Tao; Eggert, Sebastian; Pelster, Axel; Zhang, Xuefeng | We consider two species of hard-core bosons in a one-dimensional optical lattice with periodically modulated repulsive interactions. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1430 | Analysis of weakly-driven multi-emitter cQED systems | Trivedi, Rahul; Radulaski, Marina; Fischer, Kevin; Vuckovic, Jelena; Fan, Shanhui | In this work, we show that a weakly driven multi-emitter cQED system can be analyzed by approximating the driving coherent state with a single- and two-photon Fock state, and using the Scattering matrix formalism to analyze the response of this system to these Fock states. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1431 | The Density Matrix Renormalization Group for Periodically Driven Many-Body Systems | Sahoo, Shaon; Schneider, Imke; Eggert, Sebastian | We propose a new DMRG method which directly deals with the Fourier components of the eigenstates of a periodically driven system using Floquet theory. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1432 | Effective Cross Section Enhancement from Embedded Atomic Lattice Impurities | Patti, Taylor; Wild, Dominik; Shahmoon, Ephraim; Lukin, Mikhail; Yelin, Susanne | Higher-order photon correlations are calculated and pertinet extensions, such as long-lived photon bound states and multi-impurity systems, are discussed. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1433 | Scrambling dynamics across a thermalization-localization quantum phase transition | Sahu, Subhayan; Xu, Shenglong; Swingle, Brian | We study quantum information scrambling, specifically the growth of Heisenberg operators, in large disordered spin chains using matrix product operator dynamics to scan across the thermalization-localization quantum phase transition. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1434 | Quantum Brownian motion in a quasiperiodic potential | Friedman, Aaron; Vasseur, Romain; Lamacraft, Austen; Parameswaran, Siddharth | We study the behavior of a quantum particle in one dimension subject to Ohmic dissipation, moving in a bichromatic quasiperiodic potential. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1435 | Memories of Initial States in the Dynamics of Disordered Systems | Chakraborty, Ahana; Gorantla, Pranay; Sensarma, Rajdeep | Our work relates experimentally measureable non-equilibrium quantities in these systems to the localization length and hence shows a new method for extracting the localization length in these systems. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1436 | Observation of the Higgs mode in the superfluid BEC-BCS crossover in Fermi gases | Kombe, Johannes; Behrle, Alexandra; Harrison, Timothy; Gao, Kuiyi; Link, Martin; Bernier, Jean-Sebastien; Kollath, Corinna; Koehl, Michael | Interestingly, this approach highlights the presence of the Higgs mode. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1437 | Constrained Hilbert Spaces and Many-body Scars in a Landau Level | Moudgalya, Sanjay; Regnault, Nicolas; Bernevig, B Andrei | We study a “pair-hopping” model that arises within a Landau level in the thin-torus limit of the quantum Hall effect. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1438 | Computing thermalization times and hydrodynamic modes from microscopic quantum dynamics | Altman, Ehud; Cao, Xiangyu; Parker, Daniel; Huse, David | To address this problem, we construct the graph of basis operators (Pauli string in spin-half systems) spanned by applying the Liouvillian n times; n serves as a truncation cutoff. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1439 | Entanglement dynamics with diffusive transport | Rakovszky, Tibor; Pollmann, Frank; Von Keyserlingk, Curt | We investigate how the incoherent (diffusive) transport of conserved quantities affects the growth of entanglement in generic non-integrable systems. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1440 | Dynamical Phase Transitions in a 2D Quantum Dimer Model | Feldmeier, Johannes; Knap, Michael; Pollmann, Frank | The study of dynamical properties in systems with local constraints has attracted a lot of interest, spurred by experiments with Rydberg blockaded atoms, that naturally implement constrained many-body models. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1441 | Exact long-time evolution of spinless fermion systems from a highly correlated state | Harms, Kristof; Cevolani, Lorenzo; Kehrein, Stefan; Manmana, Salvatore | At very long times, we use our approach to investigate the Fluctuation-Dissipation theorem in this strong nonequilibrium situation. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1442 | Pokrovsky-Talapov transition with two Ramsey-tunnel-coupled 1D-Bose gases | Kasper, Valentin; Marino, Jamir; Cong, Si; Schmiedmayer, Joerg; Demler, Eugene | In this work we consider two one-dimensional Ramsey tunnel-coupled Bose gases and show that the low-energy effective theory of this system is described by the quantum Prokrovsky-Talapov model. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1443 | Dynamics of fractional Chern insulators under global quantum quenches | Motruk, Johannes; Moore, Joel | In this work, we investigate quantum quenches between Hamiltonians with a fractional Chern insulator (FCI) ground state and topologically trivial Hamiltonians. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1444 | Loschmidt Amplitude and Work Distribution in Quenches of the Sine-Gordon Model | Rylands, Colin; Andrei, Natan | In this talk we present a study of its non-equilibrium dynamics using the quantum quench protocol. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1445 | Quench dynamics across topological quantum phase transitions | Liou, Shiuan-Fan; Yang, Kun | Specifically, we consider the Haldane model and checkerboard model in slow quench processes with distinct band-touching structures leading to topology changes. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1446 | Phonon Coupling’s Role in the Non-Equilibrium Dynamics of a Quasicondensate | Plestid, Ryan; O’Dell, Duncan | In this work we report on classical field simulations of a quasi condensate undergoing the quench protocol outlined above, and comment on the consequences of intermode coupling both for damping, and energy transfer. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1447 | Universality of Particle and Spatial Entanglement After an Interaction Quench in a Tomonaga-Luttinger Liquid | Del Maestro, Adrian; Rosenow, Bernd | In this talk we present new results for the long-time limit of the n-particle entanglement after a global interaction quench in a Tomonaga-Luttinger liquid. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1448 | Nucleation of superfluid-light domains in a quenched dynamics | Figueroa, Joaquin; Rogan, Jose; Valdivia, Juan; Kiwi, Miguel; Romero, Guillermo; Torres, Felipe | We demonstrate that the quenched dynamics of a finite-sized array of coupled resonators induces a first-order like phase transition. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1449 | The multifractal X-ray edge problem | Wu, Angkun; Gopalakrishnan, Sarang; Pixley, Jed | We focus on the case where the many-body wavefunction is composed of single particle eigenstates that are generated from the Aubry-Andre model at its critical point, and introduce a local impurity via an instantaneous quench at time t. | Session 112: Non-Equilibrium Physics in AMO Systems |
| 1450 | Dynamic kagome ice state | Lhotel, Elsa; Petit, Sylvain; Ciomaga Hatnean, Monica; Ollivier, Jacques; Ressouche, Eric; Lees, Martin; Balakrishnan, Geetha | In this context, we report here the effect of a [111] magnetic field on Nd 2Zr 2O 7. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1451 | Quantum Spin Fragmentation in Kagome Ice Ho3Mg2Sb3O14 | Dun, Zhiling; Bai, Xiaojian; Paddison, Joseph; Hollingworth, Emily; Demmel, Franz; Butch, Nicholas; Dela Cruz, Clarina; Stone, Matthew; Hong, Tao; Mourigal, Martin; Zhou, Haidong | Here, we show that the tripod kagome lattice material Ho3Mg2Sb3O14 unites an ice-like magnetic degeneracy with quantum-tunneling terms generated by an intrinsic splitting of the Ho3+ ground-state doublet, realizing a frustrated transverse Ising model. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1452 | Exact diagonalization studies of an effective model for quantum kagome ice | Wu, Kai-Hsin; Huang, Yi-Ping; Kao, Ying-Jer | We study the spin-1/2 kagome Heisenberg XYZh model in the so-called quantum kagome ice regime[1]. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1453 | MFM Study of Magnetic Charge Order in Fibonacci-Distorted, Honeycomb Artificial Spin Ice | Woods, Justin; Farmer, Barry; Wang, Yonglei; Kwok, Wai-Kwong; Hastings, Jeffrey; De Long, Lance | We study the ordering of magnetic charges in honeycomb artificial spin ice (ASI) having distortions created by applying an aperiodic Fibonacci sequence of binary digits mapped onto short (d 1) and long (d 2) 2D lattice parameters. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1454 | Magnetotransport of Vertex Frustrated Artificial Spin Ice Structures | Sharma, Elysia; Arroo, Daan; Ray, Nirat; Cohen, Lesley; Branford, Will | Here we present an investigation of the Longitudinal and Hall resistivity, in the range 2K<T<290K, for non-conventional ASI geometries. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1455 | Imaging the stray field of chiral artificial spin ice with scanning nanoSQUID-on-tip | Wyss, Marcus; Vasyukov, Denis; Gliga, Sebastian; Ceccarelli, Lorenzo; Romagnoli, Giulio; Stamps, Robert; Poggio, Martino | We use a scanning nanometer-scale superconducting quantum interference device (nanoSQUID) [1] to image the stray field of an artificial spin ice, which displays structural chirality. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1456 | Simulation of electron holography of pyrochlore spin ice | Dhar, Ankur; Jaubert, Ludovic; Shannon, Nicholas; Shintake, Tsumoru | I have developed computational methods to predict how an electron wave would propagate through the spin ice�s magnetic structure. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1457 | Zone center physics in magnetic diffuse neutron scattering | Twengstr�m, Mikael; Bovo, Laura; Henelius, Patrik; Bramwell, Steven | By comparing a direct magnetic measurement using a SQUID magnetometer and a neutron scattering measurement near a Brillouin zone center, we show that the external susceptibility is recovered rather than the intrinsic one. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1458 | Spectroscopy of spinons in quantum spin ice | Morampudi, Siddhardh; Laumann, Christopher; Wilczek, Frank | We calculate the effect of the emergent photon on spectroscopic cross-sections of spinons in quantum spin ice which realizes an emergent phase of QED at low energies. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1459 | Hopfions in lattice dimer model | Bednik, Grigory | In this talk I consider hopfions in 3D lattice dimer model, i.e. topological defects, which can be characterized by 3D topological Hopf invariant. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1460 | Frustrated Spin Ice Nanomagnets Probed by Superconducting Vortex Dynamics. | Vicent, Jose; Rollano, Victor; Munoz-Noval, Alvaro; Gomez, Alicia; Valdes-Bango, Fernando; Velez, Maria; Martin, Jose; Osorio, Manuel; Granados, Daniel; Gonzalez, Elvira | We have studied the superconducting vortex dynamics on hybrid superconducting/magnetic samples. | Session 113: Spin Ice: Kagome, Artificial, and Theory |
| 1461 | Exploring electronic anisotropy with strain in CeRhIn5 | Thomas, Sean; Dioguardi, Adam; Thompson, Joe; Rosa, Priscila; Bauer, Eric; Ronning, Filip | Here, we use a combination of uniaxial and biaxial strain devices to investigate the nematic susceptibility of CeRhIn 5. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1462 | Spin density wave and possible Fulde-Ferrell-Larkin-Ovchinnikov states in CeCoIn5 | Kim, Duk Young; Lin, Shizeng; Bauer, Eric; Ronning, Filip; Movshovich, Roman | We examine interplay between spin density wave (SDW) and the putative Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in CeCoIn 5. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1463 | Fermi surface evolution and crystal-field excitations in heavy-fermion compounds probed by time-domain terahertz spectroscopy | Pal, Shovon; Wetli, Christoph; Zamani, Farzaneh; Stockert, Oliver; L�hneysen, Hilbert; Fiebig, Manfred; Kroha, Johann | We find that the formation of heavy bands is controlled by an exponentially enhanced, high-energy Kondo scale once the crystal-electric-field states become thermally occupied. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1464 | Kondo effects in ? and ? phases of Ce | Kim, Junwon; Ryu, Dong-Choon; Choi, Hongchul; Kim, Kyoo; Min, Byung | In this research, we focused on the Kondo physics in ? and ? phase among the various phases of Ce. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1465 | Magnetic complexity in RScT (R=Gd, Pr, T=Sb, Ge) based compound | Pathak, Arjun; Guillou, Francois; Mudryk, Yaroslav; Pecharsky, Vitalij | Here we present a systematic study of the interplay between crystal structure and magnetism in Gd 1-xPr xScGe and GdSc(Ge 1-xSb x). | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1466 | The Ho6Mo4Al43 structure type as a cage for Uranium and Plutonium | Huang, Kevin; Nelson, William; Chemey, Alexander; Albrecht-Schmitt, Thomas; Baumbach, Ryan | We will discuss these results in the context of the Hill plot, where both compounds are found near the inter-actinide distance that separates delocalized and localized f-electron behavior. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1467 | Multiple electronic instabilities and the anomalous thermodynamics of plutonium | Harrison, Neil; Betts, Jonathan; Balakirev, Fedor; Jaime, Marcelo; Tobash, Paul | Here we discuss new magnetostriction measurements on ? Pu, made using an optical fiber Bragg grating technique adapted for use on encapsulated radiological materials, that plutonium’s exceptional thermodynamic behavior with temperature derives from its f-electron shell having multiple electronic instabilities. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1468 | Fermi Surface Topology and Correlation Effects in the Electronic Structure of Plutonium | Tutchton, Roxanne; Zhu, Jian-Xin | Focusing on the d-phase of elemental Pu, we perform a careful comparison of Fermi surface topology calculations using DFT and DFT+U. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1469 | Isotropic Giant Magnetoresistance in URhIn5 | Putzke, Carsten; Svanidze, Eteri; Bachmann, Maja; Koenig, Markus; Shirer, Kent; Diaz, Jonas; Foerster, Tobias; Leithe-Jasper, Andreas; Bauer, Eric; Ronning, Filip; Grin, Yuri; Moll, Philip | We will show results of the resistivity anisotropy in focused ion beam (FIB)-fabricated microstructures of URhIn 5 and compare them to CeRhIn 5. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1470 | Large anomalous Hall effect in kagome antiferromagnet U3Ru4Al12 | Asaba, Tomoya; Bauer, Eric; Thompson, Joe; Ronning, Filip | In this study, we measured the anomalous Hall effect (AHE) of kagome heavy fermion antiferromagnet U 3Ru 4Al 12. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1471 | Magnetic torque of uranium dioxide single crystals | Gofryk, Krzysztof; Lai, You; Antonio, Daniel; Baumbach, Ryan; Graf, David; Jaime, Marcelo; Saul, Andres; Salamon, Myron; Smith, James | During the talk, we will present magnetic torque measurements (up to 35 T) performed on oriented UO 2 single crystals. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1472 | Magneto-acoustic Quantum Oscillations and the Fermi Surface of UPt3 | Shivaram, Bellave; Holleis, Ludwig; Ulrich, Vern | We report details of magneto-acoustic quantum oscillations measured for several different angles of the magnetic field away from the a-axis as well as the c-axis in UPt 3 for temperatures down to 35 mK. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1473 | Field Angle Tuned Metamagnetism, Lifschitz Transitions and Hidden Order in UPt3 | Shivaram, Bellave; Holleis, Ludwig; Jaime, Marcelo; Singleton, John; Ulrich, Vern | We report ultrasound velocity measurements carried out on single crystals of UPt 3, in magnetic fields, B, applied at various angles between c-axis and the basal plane. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1474 | Anisotropic Magnetostriction Measurements in UPt3 to 65 T | Shivaram, Bellave; Weickert, Franziska; Jaime, Marcelo | We present magnetostriction measurements obtained in pulsed magnetic fields upto 65 T at the NHMFL/Los Alamos in single crystals of UPt3 for field both parallel and perpendicular to the c-axis. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1475 | Specific heat of Pr1-xNdxOs4Sb12 | Chang, Yeh-Chia; Hishida, Shoji; Ho, Pei-Chun; Maple, M Brian; Yanagisawa, Tatsuya | From the data analysis, we try to find out the trend of parameters depending on Nd concentration. | Session 114: Strong Electronic Correlations in Lanthanides and Actinides |
| 1476 | Controlling topologically protected states by external fields and doping | Diaz Fernandez, Alvaro; Dom�nguez-Adame, Francisco; D�az, Elena | In this contribution, the system I will consider is a topological boundary. | Session 115: Topological Phases |
| 1477 | Topological phases of the rainbow chain | Sierra, German | In this talk, we shall explain another feature which is the appearance of topological order in the rainbow chain with an odd number of sites. | Session 115: Topological Phases |
| 1478 | Topology and localization in the Kondo lattice model | Su, Ying; Lin, Shizeng | Here we reveal that the one-dimensional Kondo lattice model with a magnetic elliptical spiral is a topological insulator with a Chern number 2Z in the two-dimensional space with one physical dimension and one ancillary dimension spanned by the Goldstone mode of the spiral. | Session 115: Topological Phases |
| 1479 | Topology of Quantum Systems Out of Equilibrium | McGinley, Max; Cooper, Nigel | We investigate the topological properties of many-body quantum systems undergoing unitary time-evolution. | Session 115: Topological Phases |
| 1480 | Self-assembled Bismuth Selenide (Bi2Se3) quantum dots grown by molecular beam epitaxy | Claro, Marcel; Gangopadhyay, Abhinandan; Smith, David; Tamargo, Maria | We report the growth of self-assembled Bi 2Se 3 QDs by MBE using the droplet epitaxy technique. | Session 115: Topological Phases |
| 1481 | Quantization of Fractional Corner Charge in Cn-symmetric Topological Crystalline Insulators | Benalcazar, Wladimir; Li, Tianhe; Hughes, Taylor | We show that C n symmetries quantize the corner charge in crystalline topological insulators. | Session 115: Topological Phases |
| 1482 | Topological Phase Transitions Induced by Giant Strains Produced by Chemical Pressure | Banerjee, Rajdeep; Jain, Manish; Narasimhan, Shobhana | We show that instead, chemical functionalization using -CX 3 groups (X = F, Cl, Br, I) induces giant chemical strains (of 9.5%, 37.4%, 48.9% and 62.8%, respectively) on the germanene lattice, relative to GeCH 3. | Session 115: Topological Phases |
| 1483 | Topologically Enhanced Harmonic Generation in a Nonlinear Transmission Line Metamaterial | You, Wang; Lang, Li-Jun; Lee, Ching Hua; Zhang, Baile; Chong, Yidong | We demonstrate that harmonic generation in a left-handed NLTL can be greatly increased by the presence of a topological edge state. | Session 115: Topological Phases |
| 1484 | Quantum Spin Hall Effect and Spin Bott Index in a Quasicrystal Lattice | Huang, Huaqing; Liu, Feng | Here we propose that the QSH effect can be realized in quasicrystal lattices (QLs). | Session 115: Topological Phases |
| 1485 | Connecting higher-order topological insulators to lower-dimensional topological insulators | Matsugatani, Akishi; Watanabe, Haruki | In this paper, relying on a concrete tight-binding model, we show that higher-order TIs can be smoothly connected to conventional TIs in a lower dimension without the bulk-gap closing or symmetry breaking. | Session 115: Topological Phases |
| 1486 | Inequivalent Berry Phases for the Bulk Polarization | Watanabe, Haruki; Oshikawa, Masaki | We discuss the characterization of the polarization for insulators under the periodic boundary condition in terms of the Berry phase, clarifying confusing subtleties. | Session 115: Topological Phases |
| 1487 | Magic-Angle Physics in Two-Dimensional Topological Insulators | Fu, Yixing; Wilson, Justin; Pixley, Jed | We study the fate of the BHZ model in the presence of a quasiperiodic potential by using the kernel polynomial method to calculate the density of states and conductivity to determine the zero temperature phase diagram. | Session 115: Topological Phases |
| 1488 | Disentangling interacting symmetry protected phases of fermions in two dimensions | Ellison, Tyler; Fidkowski, Lukasz | We explicitly construct the ground states of certain 2+1D fermionic symmetry protected topological (SPT) phases using finite depth circuits of local unitaries. | Session 115: Topological Phases |
| 1489 | Symmetry and Topology in Non-Hermitian Systems | Zhou, Hengyun; Lee, Jong Yeon; Liu, Shang; Zhen, Bo | Here, we present two results regarding the roles of symmetry and topology in non-Hermitian physical systems. | Session 115: Topological Phases |
| 1490 | Topological crystalline insulator states in the Ca2As family | ZHOU, XIAOTING; Hsu, Chuang-Han; Chang, Tay-Rong; Ma, Qiong; Jarillo-Herrero, Pablo; Gedik, Nuh; Bansil, Arun; Pereira, Vitor; Xu, Suyang; Lin, Hsin; Fu, Liang | Building upon recent theoretical works, we demonstrate a feasible method to identify new TCI states based on first-principles calculations.We systematically unveil the topological properties of the TCI states in Ca 2As. | Session 115: Topological Phases |
| 1491 | First-principles investigation of the magnetic transition in Fe-doped GaSb and InSb | Shinya, Hikari; Fukushima, Tetsuya; Masago, Akira; Sato, Kazunori; Katayama-Yoshida, Hiroshi | In this study, we have focused on GaSb and InSb as host semiconductors, and performed density functional theory calculations using the Korringa-Kohn-Rostoker Green�s function method with the coherent potential approximation (KKR-CPA). | Session 116: Magnetism and Spins in Semiconductors |
| 1492 | A multi-bands Hubbard model of intrinsic long range magnetic order in diluted magnetic semiconductors | Gong, Weiyi; Leung, Ching-Him; Sin, Chuen-Keung; Zhang, Jingzhao; Zhang, Xiaodong; Xi, Bin; Zhu, Junyi | In this work, we derived a multi-bands Hubbard model to explain the long range mechanism mediated by localized d states. | Session 116: Magnetism and Spins in Semiconductors |
| 1493 | Theoretical prediction of maximum Curie temperatures of Fe-based dilute magnetic semiconductors by first-principles calculations | Shinya, Hikari; Fukushima, Tetsuya; Masago, Akira; Sato, Kazunori; Katayama-Yoshida, Hiroshi | In this work, we predict the maximum Curie temperatures of the Fe-based DMSs with the spinodal nano-decomposition, on the basis of the Korringa-Kohn-Rostoker (KKR) Green�s function method within the density functional theory. | Session 116: Magnetism and Spins in Semiconductors |
| 1494 | Element- and momentum-resolved electronic structure of the dilute magnetic semiconductor manganese doped gallium arsenide | Nemsak, Slavomir; Min�r, Jan; Fadley, Charles | We have studied a dilute magnetic semiconductor (5% manganese-doped gallium arsenide) with Bragg-reflection standing-wave hard X-ray angle-resolved photoemission spectroscopy (SW-HARPES), and resolved its electronic structure into element- and momentum- resolved components. | Session 116: Magnetism and Spins in Semiconductors |
| 1495 | Ferromagnetic Stabilization of Eu-doped GaN Enhanced by Ga-vacancies | Masago, Akira; Shinya, Hikari; Fukushima, Tetsuya; Sato, Kazunori; Katayama-Yoshida, Hiroshi | In this study, we used a constant volume assumption and the coherent potential approximation (CPA) in the Korringa-Kohn-Rostoker (KKR) method with SIC. | Session 116: Magnetism and Spins in Semiconductors |
| 1496 | Enhanced Optical Band Gap in Ultrathin Epitaxial Ferromagnetic Insulator GdN Films | Da Silva Vilela, Gilvania; Berera, Geetha; Stephen, Gregory; Gratens, Xavier; Usachev, Pavel; Heiman, Don; Henriques, Andre; Moodera, Jagadeesh | With this objective we investigated the intrinsic magnetic and optical behavior of GdN films reactively rf sputtered in a UHV system under various conditions to optimize the high quality of films and reduce their defects. | Session 116: Magnetism and Spins in Semiconductors |
| 1497 | Biaxial-stress driven tetragonal symmetry breaking in and high-temperature ferromagnetic semiconductor from half-metallic CrO2 | Xiao, Xiang-Bo; Liu, Bang-Gui | Here, we find through first-principles investigation that when a biaxial compressive stress is applied on rutile CrO 2, the density of states at the Fermi level decreases with the in-plane compressive strain, there is a structural phase transition to an orthorhombic phase at the strain of -5.6%, and then appears an electronic phase transition to a semiconductor phase at -6.1%. | Session 116: Magnetism and Spins in Semiconductors |
| 1498 | Design of Super-High-TChigh-entropy ferromagnetic semiconductors in Fe-doped III-V compound semiconductorsby spinodal nano-decomposition and volume compensated codoping | Shinya, Hikari; Fukushima, Tetsuya; Masago, Akira; Sato, Kazunori; Katayama-Yoshida, Hiroshi | Based on the three general design rules of (1) the volume compensations [VC] by codoping, (2) spinodal nano-decomposition [SND], and (3) high-entropy ferromagnetic semiconductors [HEFS], we design the super-high-T C(T C> 1000K) HEFS in Fe-doped III-V compound semiconductors by computational nano-materials design. | Session 116: Magnetism and Spins in Semiconductors |
| 1499 | Interlayer Exchange Coupling Mediated by a Bulk Rashba Semiconductor | Asmar, Mahmoud; Tse, Wang Kong | In this talk, we present a RKKY theory for the interlayer exchange coupling in ferromagnet-BiTeX-ferromagnet trilayers. | Session 116: Magnetism and Spins in Semiconductors |
| 1500 | Bias dependence of spin accumulation voltage in a non-degenerate Si spin valve | LEE, SOOBEOM; Rortais, Fabien; Ohshima, Ryo; Ando, Yuichiro; Miwa, Shinji; Suzuki, Yoshishige; Koike, Hayato; Shiraishi, Masashi | In the previous research [2], the spin voltages exhibited saturation under a high electric current ( I inj) injection regime, suggesting a possibility of modification of spin transport properties in the ND Si. Hence, we clarified the origin of the Iinj dependence of the spin signals in the ND Si in this study. | Session 116: Magnetism and Spins in Semiconductors |
| 1501 | Magnetotransport in InSb nanowires with ferromagnetic contacts | Yang, Zedong; Jiang, Yifan; Car, Diana; Gazibegovic, Sasa; Crowell, Paul; Frolov, Sergey; Bakkers, Erik; Pribiag, Vlad | We report hysteretic features in the magneto-conductance measured at different back-gate voltages, and discuss the possible physical mechanisms responsible for these observations. | Session 116: Magnetism and Spins in Semiconductors |
| 1502 | Splitting the hinge mode of higher-order topological insulators | Queiroz, Raquel | We propose that this state can be measured in electrical transport by an extension of previously proposed interferometry experiments. | Session 117: Novel Excitations in Topological Systems |
| 1503 | Magneto Optic Kerr Effects of an Antiferromagnet – Topological Insulator Heterostructure | Bhowmick, Tonmoy; De, Amritanand; Lake, Roger | We investigate the magneto-optic memory applications of a topological insulator proximity coupled to an anti-ferromagnet. | Session 117: Novel Excitations in Topological Systems |
| 1504 | Glide-resolved photoemission spectroscopy: measuring topological invariants in nonsymmorphic space groups | Alexandradinata, Aris; Bernevig, Andrei; Wang, Zhijun; Zaletel, Michael | As an orthogonal by-product of our method, we propose how to generate a source of 100% spin-polarized photoelectrons, which have diverse applications in solid-state spectroscopy. | Session 117: Novel Excitations in Topological Systems |
| 1505 | Bulk-edge correspondence in 1D non-Hermitian systems | Yokomizo, Kazuki; Murakami, Shuichi | In this talk, we show how to calculate ? in general 1D models for constructing the continuum bulk-bands. | Session 117: Novel Excitations in Topological Systems |
| 1506 | Quantum Control of Current Partition at Trifurcating Topological Channels | Hou, Tao; Quan, Yujie; Ren, Yafei; Jung, Jeil; Ren, Wei; Qiao, Zhenhua | Here, we design a six-terminal graphene device to study how the incoming valley-polarized current will partition at the topological crossing point. | Session 117: Novel Excitations in Topological Systems |
| 1507 | Metallicity at the Ioffe-Regal limit in a topological insulator thin film | Rosen, Ilan; Yudhistira, Indra; Sharma, Girish; Salehi, Maryam; Moon, Jisoo; Jain, Deepti; Oh, Seongshik; Kastner, Marc; Adam, Shaffique; Goldhaber-Gordon, David | We present low-temperature transport measurements of a gate-tunable Sb 2Te 3 topological insulator thin film that features high mobility and low carrier density. | Session 117: Novel Excitations in Topological Systems |
| 1508 | High order band topology and fractional charges of vortex bound states | Lee, Eunwoo; Yang, Bohm-Jung | We show that the origin of the zero-mode bound to a vortex comes from the higher order topological physics. | Session 117: Novel Excitations in Topological Systems |
| 1509 | Topological phases of non-Hermitian systems | Kunst, Flore; Dwivedi, Vatsal | In this talk, I will describe a transfer matrix approach to these systems. | Session 117: Novel Excitations in Topological Systems |
| 1510 | Many-Body Invaraints for Electric Multipoles in Higher-order Topological Insulators | Kang, Byungmin; Kwon, HyunWoong; Park, Kwon; Cho, Gil Young | In this talk, I will introduce a many-body order parameter for quadrupole moment which provides a way to extend the quantum theory of multipole moments to the most general setting including interacting case. | Session 117: Novel Excitations in Topological Systems |
| 1511 | Dynamical Phase Transitions in Topological Insulators | Sedlmayr, Nicholas; Fleischhauer, Michael; Sirker, Jesko | Here we focus in particular on the way in which these dynamical phase transitions themselves can be used to shed light on topological phase transitions and topological phases. | Session 117: Novel Excitations in Topological Systems |
| 1512 | Spin Stiffness and Domain Walls in Dirac-Electron Mediated Magnets | Reja, Sahinur; Fertig, Herbert; Brey, Luis | We consider the problem of ordering of classical magnetic impurities which are indirectly coupled by two-dimensional Dirac electrons, as might be present in graphene or at the surface of a topological insulator. | Session 117: Novel Excitations in Topological Systems |
| 1513 | Topological tunability from even-odd order parameter mixing of monolayer 1T-TiSe2 charge density wave | Hsu, Ming-Chien; Huang, Shin-Ming; Singh, Bahadur; Hsu, Chuang-Han; Xu, Suyang; Lin, Hsin; Su, Chenliang; Bansil, Arun | Here we propose a method to decouple the parity-odd and parity- even CDW gaps, so that we can perform continuously the inversion-asymmetric CDW state into an inversion-symmetric one. | Session 117: Novel Excitations in Topological Systems |
| 1514 | Spectral weight suppression as a gap-like feature in the non-magnetic states of topological insulators | Yilmaz, Turgut; Pertsova, Anna; Hines, William; Balatsky, Alexander; Sinkovic, Boris | Here, we present an answer to one of the much debated questions in the topological insulator research, i.e., the opening of an energy gap-like feature at the Dirac point without long range ferromagnetic order. | Session 117: Novel Excitations in Topological Systems |
| 1515 | Anomalous dielectric response in insulators with a topological ? Zak phase | Murakami, Shuichi; Aihara, Yusuke; Hirayama, Motoaki | We find that an external electric field gives rise to an abrupt rise of the dipole moment, close to e/2. | Session 117: Novel Excitations in Topological Systems |
| 1516 | Photoemission Spectroscopy Experiments on Metalloporphyrin Architectures for Molecular Electronics | Elzein, Radwan; Schlaf, Rudy | In this work, we present Liquid Phase Epitaxy method to fabricate self-assembled monolayers on gold surfaces which enabled to host conductive MOFs with their ability to facilitate charge transfer and control the growth of the MOF thin films. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1517 | Ultrafast electron dynamics in a thin C60 films observed with time and angle resolved photoemission | Zhao, Peng; Corder, Christopher; Bakalis, Jin; White, Michael; Allison, Thomas | Here we present first demonstration results on C60 films with this technique. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1518 | Waves guided by the surface of a Lorentz model dielectric medium | Seshadri, S.R. | Waves guided by the surface of a Lorentz model dielectric medium | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1519 | The TEM Studies of Tungsten Irradiated by Hellium | Zhu, Kangwei; Yang, Ruilong; Wang, Wenyuan; Hu, Yin | Here, we studied the He ions irradiation effects by focusing on microstructures of the the W surfaces. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1520 | Electronic Structure of Phase Separated Material Revealed by Nanospot Angle-Resolved Photoemission Spectroscopy | Bao, Changhua; Zhang, Hongyun; Zhang, Haoxiong; Zhang, Kenan; Wu, Yang; Chen, Chaoyu; Avila, Jose; Asensio, Maria; Zhou, Shuyun | Here I will present our recent experimental results on the electronic structure of phase separated material by using NanoARPES. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1521 | Optimization and Characterization of Dip-Coated PEDOT:PSS on CdTe Solar Cells | Patullo, Michael; Ene, Nnamdi; Rogers, Daniel; Sahiner, Mehmet | In this work, we optimize the thin film deposition conditions for high-conductive grade poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on pulsed laser deposited cadmium sulfide/cadmium telluride/indium tin oxide substrates. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1522 | Effect of illumination on the interplay between Dresselhaus and Rashba spin-orbit coupling in InAs quantum wells | Cimpoiasu, Elena; Dunphy, Benjamin; Mack, Shawn; Christodoulides, Joseph; Bennett, Brian | Here we have used simulations to extract the dependence of the spin-orbit strengths on the carrier concentration. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1523 | Band Structure engineering in epitaxial LuSb thin films via dimensional confinement and bi-axial strain | Chatterjee, Shouvik; Inbar, Hadass; Khalid, Shoaib; Goswami, Aranya; Crasto de Lima, Felipe; Sharan, Abhishek; Sabino, Fernando; Brown-Heft, Tobias; Chang, Yu-Hao; Fedorov, Alexei; Read, Daniel; Janotti, Anderson; Palmstrom, Chris | Combining the techniques of molecular-beam epitaxy, low-temperature magnetotransport, angle-resolved photoemission spectroscopy, and hybrid density functional theory, we have unveiled the bandstructure of LuSb, where electron-hole compensation is identified as a mechanism responsible for XMR. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1524 | High quality Bi2Se3 thin films grown on Van der Waals substrate BiInSe3 | Yao, Xiong; Hu, Rongwei; Moon, Jisoo; Cheong, Sang-Wook; Oh, Seongshik | We grew high quality BiInSe 3 single crystals and developed an exquisite process to prepare these crystals as substrates. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1525 | Very different adsorption path ways of triatomic molecule H2O on isolated and domains of dangling bonds on the Si(100) surface | Chang, Chang-Yuan; Lin, Deng-Sung | In this study, isolated DBPs are prepared on a Si(100) surface as well-defined chemically-reactive sites for chemisorption of the prototypical H 2O triatomic molecules. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1526 | Reversible and Efficient Photo-Switching of Azobenzene Derivatives on an Insulator Surface Investigated by nc-AFM | Jaekel, Simon; Richter, Antje; Lindner, Robert; Nacci, Christophe; K�hnle, Angelika; Hecht, Stefan; Grill, Leonhard; Bechstein, Ralf | Here, we report non-contact atomic force microscopy (nc-AFM) results on the switching of individual Azobenzene derived molecules on an insulating calcite surface. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1527 | Theory of coupled deposition and dissolution of solids, with focus on corrosion | Bellemans, Inge; Fraggedakis, Dimitrios; Bazant, Martin | This study investigates the pattern formation in this concurrent deposition-corrosion system. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1528 | Morphological Instability of Grain Boundary under Lateral Applied Strain | Liu, Ming-Wei; Wu, Kuo-An | A theoretical model is proposed by taking into account a relatively soft solid-solid interface, the elasticity of solid grains, and the interfacial energy of grain boundary. | Session 118: Surfaces, Interfaces, and Thin Films: Reactions and Dynamics |
| 1529 | A Stretchable and Bendable CNT-based Resistive Pressure Sensor | Palumbo, Anthony; Zhang, Runzhi; Yan, Kang; Hader, Greg; Chang, Jason; Yang, Eui-Hyeok | Here, we present an all-solid state flexible and stretchable pressure sensor composed of vertically aligned CNTs (VACNTs) partially embedded in polydimethylsiloxane (PDMS). | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1530 | Optical absorption of atomic-precise graphene nanoribbons on insulating substrate | Zhao, Sihan; Borin Barin, Gabriela; Cao, Ting; LYU, TAIRU; Louie, Steven; Fasel, Roman; Wang, Feng | We report the reflection contrast spectra of atomic-precise armchair graphene nanoribbons (GNRs) on insulating substrates. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1531 | Characterization of Atomically Precise Graphene Nanoribbons by Raman Spectroscopy | Overbeck, Jan; Borin Barin, Gabriela; Daniels, Colin; Perrin, Mickael; Braun, Oliver; Ruffieux, Pascal; Meunier, Vincent; Fasel, Roman; Calame, Michel | We use Raman spectroscopy to characterize different types of GNRs and investigate their interaction with growth and devices substrates. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1532 | Metallic graphene nanoribbons with tunable bandwidth and magnetic properties | Jiang, Jingwei; Cao, Ting; Rizzo, Daniel; Veber, Gregory; Bronner, Christopher; Chen, Ting; Fischer, Felix; Crommie, Michael; Louie, Steven | Utilizing these characters of the topological states, we develop a novel AGNR superlattice that possesses two zigzag edges per unit cell. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1533 | Quantum Resonant Tunneling in In-Plate Graphene Nanoribbon/h-BN Heterojunctions | Tomiya, Mitsuyoshi; Sakamoto, Shoichi | The one-dimensional(1D) Dirac equation model is proposed to study double barrier system. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1534 | Resonance Raman Spectroscopy of 7-Atom Wide Armchair Graphene Nanoribbons | Do Nascimento, Viviane Valqu�ria; da Silva Neto, Eliel; Llinas, Juan; Fantini, Cristiano; Borin Barin, Gabriela; Narita, Akimitsu; Klaus, M�llen; Fasel, Roman; Bokor, Jeffrey | This work reports the optical response of armchair graphene nanoribbons of width N=7 atom (7AGNR) on Si/SiO2 substrate using Raman spectroscopy. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1535 | Light Emission in Graphene Nanoribbons: Insights from Ab-Initio Simulations | Prezzi, Deborah; Cardoso, Claudia; Ferretti, Andrea | We here report on the optical response of finite-length GNRs as resulting from state-of-the-art ab initio calculations beyond mean field [3, 4]. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1536 | Evolution of bandgap with size in armchair and zigzag graphene quantum dots | Szulakowska, Ludmila; Saleem, Yasser; Najera baldo, Louis; Delgado gran, Alain; Hawrylak, Pawel | We present here the evolution of the bandgap energy with size in armchair and zigzag graphene quantum dots (GQDs). | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1537 | Photoluminescence Quantum Efficiency of III?V Nanowires on Silicon Substrates | Clifford, Yui; Cui, Jiarong; Vinh, Ho; Wang, Yifei; Nguyen, Vinh | We report the photoluminescence quantum efficiency of nanowires as well as the thermal quenching mechanism in nanowires prepared by vapor?liquid?solid method. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1538 | Gate-tunable Aharonov-Bohm interference in Bi2O2Se nanowires | Ying, Jianghua; Yang, Huaixin; Qu, Fanming; Lu, Li | Gate-tunable Aharonov-Bohm interference in Bi2O2Se nanowires | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1539 | Structural and optical properties of Si2Te3nanowires | Chen, Jiyang; Cui, Jingbiao; Shen, Xiao; Hoang, Thang; Wu, Keyue | Here, we report a study of the structural and optical properties of Si 2Te 3nanowires (NW) at various conditions. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1540 | Electrically Driven Structural Phase Transition in Single Ag2Te Nanowire Devices | Premasiri, Kasun; Zheng, Wei; Wu, Yue; Gao, Xuan | Here we report a study on the temperature� or electrically�driven phase change properties of crystalline Ag 2Te nanowires. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1541 | Theoretical Study on VO2 Nanowire Structures for Energy Applications | Bhuyan, Prabal; Gupta, Sanjeev; Sonvane, Yogesh; Gajjar, P. N. | We have studied the structural and electronic, optical properties of monoclinic and rutile phase of VO 2 nanowire by performing first-principles calculations. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1542 | Nano-wire to Film Transitions During Pulsed-Laser Deposition: the Role of Plasma Plume Expansion | Del Gaudio, Davide; Boone, Carl; Sallans, Kaitlyn; Mason, Erica; Williamson, Andrew; Yarlagadda, Sneha; Heron, John; Shalish, Ilan; Goldman, Rachel | 1 Here, we the consider the influence of the plasma plume expansion on NW vs film formation. | Session 119: Optical and Electronic Properties of Graphene Nanoribbons and Nanowires |
| 1543 | Surface reaction kinetics of dimethyl methylphosphonate (DMMP) on zirconium hydroxide using attenuated total reflection infrared (ATR-FTIR) spectroscopy | Jeon, Seokmin; Balow, Robert; Daniels, Grant; Ko, Jesse; Pehrsson, Pehr | We synthesize zirconium hydroxide films using cathodic electrodeposition and investigate their surface chemistry to a CWA simulant, dimethyl methylphosphonate (DMMP), using attenuated total reflection infrared spectroscopy (ATR). | Session 120: Oxide Surfaces and Defects |
| 1544 | Microscopic investigation on surface structures and intrinsic defects of Cu2O(111) | Trinh, Ly; Lee, Taehun; Duvjir, Ganbat; Kim, Sanghwa; Soon, Aloysius; Jeong, Se Young; Kim, Jungdae | In this work, we investigate the surface structures and intrinsic defects of Cu 2O(111) via home-built low temperature scanning tunneling microscopy (STM). | Session 120: Oxide Surfaces and Defects |
| 1545 | Cu2O island growth during Cu oxidation revealed by correlated in situ ETEM and multiscale simulations | Li, Meng; Curnan, Matt; Li, Xinyu; Henkelman, Graeme; Saidi, Wissam; Yang, Judith | In this work, by combining in situ Environmental TEM (ETEM) with multiscale atomistic simulation, the dynamic process of initial Cu 2O nano island growth was explored. | Session 120: Oxide Surfaces and Defects |
| 1546 | First-principles study of Iridium oxide desorption from iridium low-index surfaces at high temperature | Seo, Insung; Yokota, Shunsuke; Imai, Yousuke; Gohda, Yoshihiro | In this study, we investigate surface oxide of low-index iridium surface, such as Ir(100), Ir(110), and Ir(111) to find energetically favorable surface oxide by using first-principles calculations based on density functional theory. | Session 120: Oxide Surfaces and Defects |
| 1547 | Atomic Structure and Nano-Fracture Mechanics of Semiconductor-Oxide Interfaces Investigated by Transmission Electron Microscopy and Scanning Force Microscopy | Dutta, Dipanwita; Jarzabek, Dariusz; Schift, Helmut; Rymuza, Zygmunt; Jung, Thomas | Here we focus on Scanning Force Microscopy derived methods [1] which reveal the mechanical properties and fracture thresholds of oxide with respect to semiconductor interfaces like SiO 2/Si and SiO 2/SiC. | Session 120: Oxide Surfaces and Defects |
| 1548 | Amorphous Networks at the Atomic-Scale: Comparing Two-Dimensional Silica and Germania | Burson, Kristen; Lewandowski, Adrian; Schlexer, Philomena; Buechner, Christin; Burrall, Hannah; Schneider, Wolf-Dieter; Pacchioni, Gianfranco; Heyde, Markus; Freund, H | Here we present a study of two prominent glass-formers, silica and germania, using high-resolution ultra-high vacuum STM to characterize structure. | Session 120: Oxide Surfaces and Defects |
| 1549 | A non-invasive SOI gating method of probing pristine chemically-terminated silicon surfaces | Robertson, Luke; Kane, Bruce | We are presently developing new techniques to probe pristine hydrogen-terminated Si surfaces using a non-invasive SOI flip-chip gating assembly in which all critical device fabrication is performed on the SOI end. | Session 120: Oxide Surfaces and Defects |
| 1550 | DFT-MD simulations of reaction mechanisms between tricresy phosphate and Fe3O4 (111) surface | Uemura, Naoki; Ogata, Shuji; Harada, Yosuke | We thereby find that: (i) the P-O bond that connect to the toluene base of TCP breaks in all cases, (ii) the P-O bond breaking is attributed to the attacking by either oxygen or iron atom of the Fe 3O 4 surfaces, (iii) the adsorption behavior of TCP varies depending on the initial TCP orientations and the amount of exposed oxygen atoms of the Fe 3O 4 surfaces. | Session 120: Oxide Surfaces and Defects |
| 1551 | Exceptional scaling relation exhibited by oxygen reduction reaction intermediates on TiO2 surfaces | Yamamoto, Yoshiyuki; Kasamatsu, Shusuke; Sugino, Osamu | Exceptional scaling relation exhibited by oxygen reduction reaction intermediates on TiO2 surfaces | Session 120: Oxide Surfaces and Defects |
| 1552 | Structural and electronic coupling at the surface of SrTiO3 (001) | Saghayezhian, Mohammad; Rezaei, S. M.; Zhang, Jiandi; Plummer, E | The surface of SrTiO 3 (001) is considered to be weakly polar and in this work, we study the validity of this notion. | Session 120: Oxide Surfaces and Defects |
| 1553 | Cryogenic force microscopy of Sketched LaAlO3/SrTiO3 Nanostructures | Albro, Joseph; Montone, Jessica; Bi, Feng; Huang, Mengchen; Lee, Jung-Woo; Lee, Hyungwoo; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | We describe experiments performed both at room temperature and at low temperatures (<25 K) using a modified vacuum AFM. | Session 120: Oxide Surfaces and Defects |
| 1554 | Molecular Beam Epitaxy (MBE) Growth of Model Cathode to Study Interfacial Ion Diffusion | KC, Bilash; Jokisaari, Jake; Klie, Robert | Here we present single-crystal LiMn 2O 4 thin films grown using MBE as model cathodes. | Session 120: Oxide Surfaces and Defects |
| 1555 | Homoepitaxial growth of SrTiO3 by Pulsed Laser Deposition: energetic vs thermal growth | Ulbrandt, Jeffrey; Zhang, Xiaozhi; Liu, Rui; Dawber, Matthew; Headrick, Randall | Homoepitaxial growth of SrTiO3 by Pulsed Laser Deposition: energetic vs thermal growth | Session 120: Oxide Surfaces and Defects |
| 1556 | Surface Stress in nano-oxides and what it tell us | Chan, Siu-Wai | In this short talk, experimental results definitely prove that surface stress exists in nanocrystals and can be modified with adsorbents affecting the material�s basic properties such as stiffness and thermal expansion. | Session 120: Oxide Surfaces and Defects |
| 1557 | Adsorption and destruction of nerve agent sarin and its simulant DMMP on zinc oxide | Tsyshevskiy, Roman; Holdren, Scott; Fears, Kenan; Owrutsky, Jeffrey; Eichhorn, Bryan; Zachariah, Michael; Kukla, Maija | Here we report results of our joint DRIFTS, FTIR and DFT study of adsorption and destruction of dimethyl methylphosphonate (DMMP) simulant molecule on ZnO nanoparticles. | Session 120: Oxide Surfaces and Defects |
| 1558 | Origins of strong and/or quantized nonlinear optical responses in Weyl semimetals | Moore, Joel | Origins of strong and/or quantized nonlinear optical responses in Weyl semimetals | Session 121: Nonlinear Optics in Topological Semimetals |
| 1559 | Colossal Bulk Photovoltaic Effect in a Weyl Semimetal | Osterhoudt, Gavin; Diebel, Laura; Gray, Mason; Yang, Xu; Stanco, John; Huang, Xiangwei; Shen, Bing; Ni, Ni; Moll, Philip; Ran, Ying; Burch, Kenneth | We present photocurrent measurements on the Weyl semimetal TaAs, where the diverging Berry connection leads to the largest observed BPVE, as well as the first observation of BPVE utilizing mid-infrared radiation. | Session 121: Nonlinear Optics in Topological Semimetals |
| 1560 | Berry Curvature Enhanced Nonlinear Photogalvanic Response of Type-II Weyl Cone | Sun, Dong | Berry Curvature Enhanced Nonlinear Photogalvanic Response of Type-II Weyl Cone | Session 121: Nonlinear Optics in Topological Semimetals |
| 1561 | Nonlinear transport and optical responses in atomically thin WTe2 | Ma, Qiong | We demonstrate nonlinear electrical transport and infrared optoelectronic measurements as symmetry sensitive probes of the low energy electron states in novel metals/semimetals. | Session 121: Nonlinear Optics in Topological Semimetals |
| 1562 | Fragile Topological Bands With Stable Index at Half-Filling inTwisted Bilayer Graphene | Bernevig, B Andrei | Using an approximate but crucial particle-hole symmetry, we prove that half-filled graphene has bands that exhibit Wannier (Wilson loop) flow, and hence have to be topological. | Session 121: Nonlinear Optics in Topological Semimetals |
| 1563 | Fermi arc induced vortex structure in Weyl beam shifts | Chattopadhyay, Udvas; Shi, Li-kun; Zhang, Baile; Song, Justin; Chong, Yidong | We have recently found that when beams in a Weyl medium reflect off an interface with a gapped medium, the trajectory is influenced by both bulk geometrical effects and the presence of Fermi arc surface states. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1564 | Magnetotransport in Weyl nanowires | Kaladzhyan, Vardan; Bardarson, Jens | We study longitudinal magnetotransport in Weyl semimetal nanowires. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1565 | Chirality in Weyl semimetals in strong circularly-polarized electric field | Nematollahi, Fatemeh; Apalkov, Vadym; Wu, Jhih-Sheng; Stockman, Mark | We theoretically study the interaction of three-dimensional topological Weyl semimetals with a single oscillation femtosecond long circularly-polarized pulse. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1566 | Topological Nodal Lines from Crystalline Symmetry | Li, Heqiu; Fang, Chen; Sun, Kai | In this study, we show that for four-band models with T 2=+1, there are two special points in phase space where the system has a Z 2 symmetry, and any Hamiltonian can be adiabatically connected to one of these points. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1567 | Strong disorder in nodal semimetals: Schwinger-Dyson�Ward approach | Sbierski, Bjoern | We present an alternative, simple-to-use non-perturbative approach to calculate the disorder induced self-energy. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1568 | Parity anomaly in the nonlinear response of nodal-line semimetals | Martin-Ruiz, Alberto; Cortijo, Alberto | We will focus on the the PT-symmetric version of NLSM and see how adding and removing a PT symmetry-breaking parameter leaves scars in the electromagnetic response of these systems. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1569 | Topological Amorphous Metals | Yang, Yanbin; Qin, Tao; Deng, Dong-Ling; Duan, Luming; Xu, Yong | Here, we study amorphous systems with completely random sites and find that, through constructing and exploring a concrete model Hamiltonian, such a system can host an exotic phase of topological amorphous metal in three dimensions. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1570 | Adiabatic dechiralisation and thermodynamics of Weyl semimetals | Syzranov, Sergey; Rodionov, Yaroslav; Skinner, Brian | We describe this phenomenon quantitatively and discuss experimental conditions favourable for its observation. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1571 | Dynamical density response and optical conductivity in topological metals | Burkov, Anton | Here we present a study of the electromagnetic response of three-dimensional topological metals with Weyl or Dirac nodes in the spectrum, which systematizes and extends earlier pioneering studies. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1572 | Two-particle collisional coordinate shifts and hydrodynamic anomalous Hall effect in systems without Lorentz invariance | Pesin, Dmytro | We show that electrons undergoing a two-particle collision in a crystal experience a coordinate shift that depends on their single-particle Bloch wave functions, and derive a gauge-invariant expression for such shift, valid for arbitrary band structures, and arbitrary two-particle interaction potentials. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1573 | Optical responses of chiral multifold fermions | Sanchez-Martinez, Miguel Angel; De Juan, Fernando; Grushin, Adolfo | In this talk I will discuss their linear and non linear optical responses including optical activity, linear optical conductivity and photogalvanic effects. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1574 | Intrinsic magnetoresistance in three-dimensional Dirac materials with low carrier density | WANG, Huanwen; Fu, Bo; Shen, Shunqing | Here we present a quantum theory of intrinsic magnetoresistance for three-dimensional Dirac fermions at a finite and uniform magnetic field B. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1575 | Novel Planar Hall Effect in Tilted Weyl Semimetals | Ma, Da; Jiang, Hua; Liu, Haiwen; Xie, Xincheng | We investigate the transport of the tilted Weyl semimetals semiclassically in an in-plane magnetic field. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1576 | Spin-to-charge conversion in magnetic Weyl semimetals. | Zhang, Shulei; Burkov, Anton; Martin, Ivar; Heinonen, Olle | In this work, we investigate theoretically the inverse Edelstein effect (IEE) in a magnetic WSM, i.e., a charge current induced by spin accumulation at the interface between a magnetic WSM and a normal metal. | Session 122: Novel Transport Properties of Weyl and Dirac Semimetals |
| 1577 | Dynamical Mean Field Theory and the Iron Pnictides and Chalcogenides | Kotliar, Gabriel | In this talk I will describe recent progress in understanding this class of materials using Dynamical Mean Field Theory and advanced quantum impurity solvers. | Session 123: Novel f- and d-electron Materials: Skutterudites and Pnictides |
| 1578 | Overview of Experimental Results on Filled Skutterudites with Pt-Ge framework | Gumeniuk, Roman; Schnelle, Walter; Leithe-Jasper, Andreas; Grin, Yuri | Overview of Experimental Results on Filled Skutterudites with Pt-Ge framework | Session 123: Novel f- and d-electron Materials: Skutterudites and Pnictides |
| 1579 | Comprehensive Study of Electronic Structure of Rare-Earth (R) Filled Skuttterudites, RPt4Ge12 | Quader, Khandker | The talk will discuss a comprehensive electronic structure study on a series of rare earth filled skutterudites, RPt 4Ge 12 (R= La, Ce, Pr), aimed at shedding light on aspects that may be useful for understanding some of their properties: consequences of progressive increase of f-electrons in the series; role of correlation �U� between the f-electrons and its importance relative to spin-orbit coupling; the nature and variation of 3D Fermi surfaces with the number of f-electrons and �U�. | Session 123: Novel f- and d-electron Materials: Skutterudites and Pnictides |
| 1580 | Predictive powers of the DFT+DMFT method for electronic and structural properties | Pascut, Gheorghe | In this talk I will present theoretical results for d- and f-systems, obtained with a method based on a combination of density functional theory (DFT) and dynamical mean field theory (DMFT). | Session 123: Novel f- and d-electron Materials: Skutterudites and Pnictides |
| 1581 | Soft-modes and electronic topological transitions in p- and d-electron materials | Widom, Michael | Soft-modes and electronic topological transitions in p- and d-electron materials | Session 123: Novel f- and d-electron Materials: Skutterudites and Pnictides |
| 1582 | Infinite-randomness fixed point of the quantum superconductor-metal transitions in amorphous thin films | Lewellyn, Nicholas; Percher, Ilana; Nelson, JJ; Garcia-Barriocanal, Javier; Volotsenko, Irina; Frydman, Aviad; Vojta, Thomas; Goldman, Allen | Infinite-randomness fixed point of the quantum superconductor-metal transitions in amorphous thin films | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1583 | Superconductivity in few-layer NbSe2 grown by molecular beam epitaxy | Chen, Cliff; Wei, Peng | We will discuss correlations between layer quality and the Tc. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1584 | Ising superconductivity in NbSe2-xTex with tunable spin-orbit coupling | Zhang, Zhenyu; Li, Leiqiang; Qin, Wei; Cui, Ping; Zeng, Changgan | Here, using first-principles density functional theory calculations, we demonstrate that the Te substitution of Se in NbSe 2 will enhance the strength of the SOC, as characterized by the increased spin splitting in the electronic structures of NbSe 2-xTe x. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1585 | The enhancement of in-plane Hc2 in monolayer centrosymmetric superconductor 1T’-WTe2 via strong spin-orbital coupling | Xie, Yingming; He, Wenyu; Law, Kam Tuen | In this work, we find due to the strong spin-orbital coupling (SOC), the spin susceptibility is reduced in the low gating region. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1586 | Superconductivity in Br-doped misfit compounds (PbSe)1.12(TaSe2) | Xu, Zhuan | We report the discovery of superconductivity with a maximum T c of 1.28 K in Br-doped (PbSe) 1:12(TaSe 2), which is a new misfit compound consisting of alternating layers of distorted rocksalt PbSe and dichalcogenide TaSe 2. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1587 | Superconductivity and Charge Density Wave in SnSe2-based Heterostructures | Zhang, Yimin; Fan, Jia-Qi; Song, CanLi; Ma, Xucun; Xue, Qikun | We report the direct observation of interface superconductivity and interface-induced charge density wave on monolayer SnSe 2-based heterostructures. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1588 | Superconductivity in electron-doped layered 1T-SnSe2 | Wu, Hanlin; Li, Sheng; Haugan, Timothy; Susner, Michael; Lv, Bing | In this presentation, we will focus on our experimental intercalation studies of the CdI 2-type 1T-SnSe 2 phase. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1589 | Theory of unconventional superconductivity in gated monolayer WTe2 | Hsu, Yi-Ting; Cole, William; Zhang, Rui-Xing; Sau, Jay | Here we investigate the dominant pairing instabilities under different microscopic interactions by solving the linearized gap equation. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1590 | Nodeless superconductivity in the type-II Dirac semimetal PdTe2: London penetration depth and pairing-symmetry analysis | Orth, Peter; Teknowijoyo, Serafim; Jo, Na Hyun; Scheurer, Mathias; Tanatar, Makariy A; Cho, Kyuil; Budko, Sergey; Canfield, P.C.; Prozorov, Ruslan | We compare these experimental results with expectations from a detailed theoretical symmetry analysis and reduce the number of possible superconducting pairing states in PdTe2 to only three nodeless candidates: a regular, topologically trivial s-wave pairing, and two distinct odd-parity triplet states that both can be topologically nontrivial depending on the microscopic interactions driving the superconducting instability. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1591 | Robust parity-mixed superconductivity in disordered 2D transition metal dichalcogenides | M�ckli, David; Khodas, Maxim | Here, we use a combined numerical and group-theoretical approach in real-space to characterize the unconventional superconducting state in monolayer transition metal dichalcogenides. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1592 | Ising superconductors in in-plane magnetic fields | Ilic, Stefan; Meyer, Julia; Houzet, Manuel | Using a quasiclassical formalism for disordered Ising superconductors, we calculate the in-plane upper critical field, as well as the density of states in the superconducting phase. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1593 | Superconductivity in Re6Se8Cl2, a Superatomic Two Dimensional Semiconductor | Telford, Evan; Russell, Jake; Swann, Josh; Lee, Kihong; Zhu, Xiaoyang; Roy, Xavier; Dean, Cory | We report on low temperature transport measurements of Re 6Se 8Cl 2 – a synthesized van der Waal cluster solid with a hierarchical structure composed of covalently linked Re 6Se 8 clusters. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1594 | Superconductivity in 1D Zigzag Nanowires | Pai, Yun-Yi; Briggeman, Megan; Lee, Hyungwoo; Lee, Jung-Woo; Huang, Mengchen; Li, Jianan; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | We investigate the effects of the geometrical shapes of the 1D nanowires created at LaAlO 3/SrTiO 3 in order to study the origin of superconductivity of SrTiO 3, which has puzzled researchers for more than 50 years. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1595 | Vestigial nematic phase due to superconductivity in doped Bi2Se3, and its influence on the superconducting ground state in an applied magnetic field | Hecker, Matthias; Berg, Erez; Schmalian, Joerg | Inside this performed phase, we study resistivity, elastic constants, and fluctuating diamagnetism. | Session 124: Superconductivity in Dichalchogenides and Similar Materials |
| 1596 | Uranium Surface Nitridation and Its Application in Uranium Passivation | Liu, Kezhao; Pan, Qifa; Yang, Ruilong; Zhu, Kangwei; Wang, Xiaofang; Liu, Jing; Hu, Yin | Uranium Surface Nitridation and Its Application in Uranium Passivation | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1597 | The Experimental Research on Oxidation Kinetics of Uranium Surface Treated by Laser Nitriding | Hu, Yin; Li, Haibo; Qin, Jianwei; Wang, Xiaofang; Zhang, Yongbin; Zhang, Yanzhi; Liu, Kezhao | It has been shown that the critical thickness reached at the onset of the transition is about 300 nm in this work. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1598 | Metallic surface states induced perturbation in electron affinity of epitaxial AlN films | Mishra, Monu; Gupta, Govind | We report the influence of metallic surface states induced alteration in the electron affinity of epitaxial AlN films. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1599 | Plasma Nitriding and Carbon Assisted Plasma Nitriding of Tantalum | Yang, Ruilong; Zhu, Kangwei | Plasma Nitriding and Carbon Assisted Plasma Nitriding of Tantalum | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1600 | Atomic layer epitaxy of aluminum nitride: Unraveling the connection between hydrogen plasma and carbon contamination | Erwin, Steven; Lyons, John | We propose a theoretical atomistic model and elucidate its consequences using analytical rate equations, density-functional theory, and kinetic Monte Carlo statistical simulations. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1601 | The Effect of Embedded Ag versus Au Nanoparticles on the Photovoltaic Conversion Efficiency in CdTe/CdS Thin Films | Rodgers, Olivia; Yilmaz, Yunis; Woldegerima, Selam; Sahiner, Mehmet | This work focuses on identifying at what amount of Ag deposition time will yield maximum efficiency. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1602 | Non-classical effects of extrinsic doping on Au quantum wires | Mamiyev, Zamin; Tegenkamp, Christoph; Pfn�r, Herbert | Here we employ plasmon spectroscopy to study the response of Au-induced quantum wires to extrinsic doping by hydrogen adsorption. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1603 | Kinetics of a Solid-Solid Charge Transfer Reaction | Pan, Ying; Poulikakos, Dimos; Cira, Nate; Tao, Ye | We present an analysis of the kinetics of charge transfer at a solid-solid interface. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1604 | Growth of CuMnAs by molecular beam epitaxy: Control over structure and properties | Krizek, Filip; Kaspar, Zdenek; Brajer, Martin; Zub�?, Jan; Vetushka, Aliaksei; Godinho, Jo�o; Kriegner, Dominik; �ob�n, Zbyn?k; Champion, Richard; Wadley, Peter; Olejn�k, Kamil; Jungwirth, Tomas; Nov�k, V�t | We will present a detailed strategy for growth of CuMnAs by molecular beam epitaxy, while focusing on crystallinity of the grown thin films. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1605 | Preparation of epitaxial ScF3 thin films � a negative thermal expansion material | Jayakody, Amani; Zhang, Zhiwei; Zhu, Zhihai; Whitelock, Hope; Budnick, Joseph; Hancock, Jason; Wells, Barrett | This report describes the growth and initial characterization of high quality ScF 3 films. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1606 | Atom-Scale Dynamics in Surface-Catalyzed Nitrogen Incorporation in Epitaxial Growth of Gallium Nitride | Bui, Kieu My; Boero, Mauro; Shiraishi, Kenji; Oshiyama, Atsushi | The results obtained for the first time in this work include (i) that Ga atoms on the growing surface are extremely mobile at the growth temperature, forming a liquid-like phase, and (ii) that ammonia NH 3 and its related species NH x intervene into the weak Ga-Ga bond on the growing surface spontaneously or with surprisingly small energy barriers. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1607 | A SCAN+rVV10 study of Thiophene adsorption on Ir, Rh, and Ag (100) | Kara, Abdelkader; Malone, Walter | Along with the equilbirum adsorption geometry we present various geometric and electronic properties of the adsorbate/substrate systems such as adsorption energy, adsorption height, buckling of the first layer of the substrate, charge transfer to the molecule, change in the width and center of the surface�s d-band, and change in the surface�s work funcntion. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1608 | A Density Functional Theory Study of the Adsorption of Thiophene on Transition Metal Surfaces | Malone, Walter; Kara, Abdelkader; Kaden, William | Along with the equilibrium adsorption sites, we present a variety of other properties of the substrate/adsorbate system including adsorption energy, adsorption height, C-S bond lengths, and charge transfer to the molecule. | Session 125: Semiconductor Surfaces, Films, and Nanostructures |
| 1609 | Role of Anisotropy in Spin Glass 1/f Noise Measurements | Harrison, David; Dalhberg, E. Dan; Orbach, Raymond | Role of Anisotropy in Spin Glass 1/f Noise Measurements | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1610 | A statistical approach to rejuvenation and memory in spin glasses | Orbach, Raymond | A statistical approach to rejuvenation and memory in spin glasses | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1611 | Heisenberg domain state in thin-film ferromagnet/antiferromagnet bilayers is a magnetic glass | Li, Weijie; Urazhdin, Sergei | We utilize magnetoelectronic and magneto-optical measurements of relaxation and dynamical characteristics in F/AF bilayers with AF=CoO, NiO, and FeMn to show that HDS is a magnetic glass. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1612 | Investigation of the Magnetic Ground State of Ni-Mn-Sn-based Shape Memory Alloy: a combined muSR and Powder Neutron Diffraction Study | Majumdar, Subham; Sannigrahi, Jhuma; Adroja, D.; Lord, J; Khalyavin, Dmitry; Hillier, Adrian | We performed muon spin relaxation (muSR) and neutron powder diffraction (NPD) measurements as a function of temperature ( T) on a metamagnetic shape memory alloy of nominal composition Ni 51Mn 35Sn 14. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1613 | Low-temperature and dynamic magnetism of highly frustrated 5d2 Li4MgOsO6 in comparison with 5d3 Li3Mg2OsO6 | Carlo, Jeremy; Derakhshan, Shahab; Gredig, Thomas; Luke, Graeme; Greedan, John | In Li 3Mg2OsO 6 we find spin freezing below 12K. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1614 | Spin Glass Behavior in Spinel Ni0.8Fe2.2O4 | Nepal, Roshan; Saghayezhian, Mohammad; Zhang, Jiandi; Jin, Rongying | Here, we report the magnetic and thermal properties of single-crystalline Ni 0.8Fe 2.2O 4, which orders ferrimagnetically (FI) below T FI ~ 860 K, followed by another magnetic transition at T SG ~ 14 K. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1615 | Quadrupolar Order and Disordered States in Spin-1 Diamond Lattice Antiferromagnets | Butcher, Matthew; Li, Shuyi; Loganathan, Vaideesh; Nevidomskyy, Andriy | We study the phase diagram of the Heisenberg model with bilinear and biquadratic interactions between nearest and next-nearest neighbors on the diamond lattice to search for ordered and quantum spin liquid states. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1616 | Coexisting zero-field and field induced relaxation channels in spinel spin ice | Riordan, Edward; Fennell, Tom; Lhotel, Elsa; Zaharko, Oksana; Tsurkan, Vladimir; Giblin, Sean | We have studied the spin ice materials CdEr 2Se 4 and CdEr 2S 4 using a bespoke high frequency ac susceptometer capable of measuring at low temperatures (>2K). | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1617 | Spin Jahn-Teller effect in the antiferromagnet CoTi2O5 | Lang, Franz; Kirschner, Franziska; Blundell, Stephen; Johnson, Roger; Prabhakaran, Dharmalingam | We have used a combination of neutron powder diffraction and muon spin rotation experiments, complemented with DFT calculations, to solve the magnetic structure of orthorhombic CoTi 2O 5, which we find adapts a long-range ordered, antiferromagnetic state below 26 K with a moment of 2.72(1)? B per Co 2+ ion and propagation vector k=(�1/2,1/2,0) [1]. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1618 | Single-Crystal Neutron Scattering Studies of Breathing Pyrochlore Ba3Yb2Zn5O11 | Dissanayake, Sachith; Steinhardt, William; Shi, Zhenzhong; Kuhn, Stephen; Butch, Nicholas; Frontzek, Matthias; Qiu, Yiming; Graf, David; Lu, Hongcheng; Marjerrison, Casey; Haravifard, Sara | In this talk we will present our recent magneto-transport and field-dependent diffuse and inelastic neutron scattering results measured on single crystal of the breathing pyrochlore compound Ba 3Yb 2Zn 5O 11. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1619 | Powder inelastic neutron scattering of a spin-liquid candidate Ba3ZnRu2O9 | Pajerowski, Daniel; Sanjeewa, liurukara; Stone, Matthew; Gai, Zheng; Kolis, Joseph | Powder inelastic neutron scattering of a spin-liquid candidate Ba3ZnRu2O9 | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1620 | Magnetic excitations of the classical spin-liquid MgCr2O4 | Mourigal, Martin; Bai, Xiaojian; Paddison, Joseph; Kapit, Eliot; Koohpayeh, Seyed; Wen, Jiajia; Dutton, Sian; Broholm, Collin; Chalker, John; Savici, Andrei; Granroth, Garrett; Kolesnikov, Alexander | We report a comprehensive inelastic neutron-scattering study of the frustrated pyrochlore antiferromagnet MgCr 2O 4 in its cooperative paramagnetic regime. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1621 | Possible Random Singlet phase in the S = 1/2 magnet Y2CuTiO6 | Mahajan, Avinash; Kundu, Susanta; Orain, Jean-Christophe; Baenitz, Michael | We observed that the data could be scaled such that H ?C m/T vs T/H follows a universal curve with ? = 0.6. | Session 126: Spin Glasses, Spinels and Other Frustrated Systems |
| 1622 | Finite-temperature charge dynamics and the melting of the Mott insulator | Normand, Bruce; Han, Xing-Jie; Chen, Chuang; Chen, Jing; Xie, Hai-Dong; Huang, Rui-Zhen; Liao, Hai-Jun; Meng, Zi Yang; Xiang, Tao | Here we extend the slave-fermion (holon-doublon) description of the two-dimensional Mott insulator to finite temperatures. | Session 127: Mott Insulators and the Hubbard Model |
| 1623 | Local Density distribution of disordered Bose-Hubbard Model | Hettiarachchilage, K; Moore, C; Rousseau, V. G; Tam, Ka-Ming; Jarrell, Mark; Moreno, J | We study the local density of the Bose-Hubbard model in the presence of on-site disorder in the canonical ensemble. | Session 127: Mott Insulators and the Hubbard Model |
| 1624 | Resonant Driving induced Ferromagnetism in the Fermi Hubbard Model | Sun, Ning; Zhang, Pengfei; Zhai, Hui | In this letter we consider quantum phases and the phase diagram of a Fermi Hubbard model under periodic driving that has been realized in recent cold atom experiments, in particular, when the driving frequency is resonant with the interaction energy. | Session 127: Mott Insulators and the Hubbard Model |
| 1625 | Charge Density Waves in a Doped Kondo Chain | Huang, Yixuan; Sheng, Donna; Ting, Chin-Sen | We show that charge density waves (CDWs) exist in the ground state of the one-dimensional Kondo lattice model at the filling of n=0.75 with a finite charge gap, while most of the doped phase is metallic. | Session 127: Mott Insulators and the Hubbard Model |
| 1626 | The spectral function of Mott-insulating Hubbard ladders: From fractional excitations to coherent quasi-particles | Yang, Chun; Feiguin, Adrian | We study the spectral function of two-leg Mott insulating Hubbard ladders using the time-dependent density matrix renormalization group method (tDMRG). | Session 127: Mott Insulators and the Hubbard Model |
| 1627 | The Hall conductivity in correlated electron systems | Rohringer, Georg; Markov, Anton; Rubtsov, Alexey | We have calculated the Hall conductivity in the Hubbard model in a magnetic field by means of dynamical mean field theory (DMFT). | Session 127: Mott Insulators and the Hubbard Model |
| 1628 | Scaling theory for Mott-Hubbard transitions | Mukherjee, Anirban; Lal, Siddhartha | We present a zero temperature nonperturbative analytical renormalization group (RG) investigation of the electronic Hubbard model in two dimensions on a square lattice. | Session 127: Mott Insulators and the Hubbard Model |
| 1629 | Rectification in Mott-insulator p-n junctions | Zhuang, Zekun; merino, jaime; Marston, John | Here, we theoretically explore the possibility of realizing a rectifier based on a doped Mott-insulator p-n junction. | Session 127: Mott Insulators and the Hubbard Model |
| 1630 | Prediction of Mott insulation and atomic displacements in 3d ABO3 oxide perovskites without Hubbard U | Varignon, Julien; Bibes, Manuel; Zunger, Alex | We apply to all ABO 3 3d perovskites DFT with (i) fully relaxed large supercells (ii) using XC functionals that have small delocalization errors (DFT+U and SCAN without U) and (iii) occupying single partners in degenerate levels. | Session 127: Mott Insulators and the Hubbard Model |
| 1631 | Mott transitions in a class of solvable models | Zheng, Wayne; Lu, Yuan-Ming | We construct a class of lattice models, where an electronic superconductor can be driven into a fractionalized Mott insulator by increasing the onsite Coulomb repulsion. | Session 127: Mott Insulators and the Hubbard Model |
| 1632 | Nature of Mott Insulator in 2D Hubbard Model by Eliashberg Theory | Rodriguez, Jose; Montoya, Geovani | We introduce an Eliashberg theory in the particle-hole channel for the Hubbard model over the square lattice that exploits the perfect nesting shown by the Fermi surface at half filling[1]. | Session 127: Mott Insulators and the Hubbard Model |
| 1633 | Local entropies across the Mott transition in an exactly solvable model | Yeo, Luke; Phillips, philip | We address this problem for the exactly solvable Hatsugai-Kohmoto model, whose Mott transition occurs at zero temperature between classically mixed states. | Session 127: Mott Insulators and the Hubbard Model |
| 1634 | Hidden spin current in doped Mott antiferromagnets | Zheng, Wayne; Zhu, Zheng; Sheng, Donna; Weng, Zheng-Yu | We investigate the nature of doped Mott insulators using exact diagonalization and density matrix renor- malization group methods. | Session 127: Mott Insulators and the Hubbard Model |
| 1635 | Doping a 2d Mott insulator � Study of a quantum dimer model | Huber, Sebastian; Grusdt, Fabian; Punk, Matthias | We show in this talk that the system averaged local two-spin density matrix enables to distinguish magnetically ordered and interesting topologically ordered spin-liquid phases, which might occur in the Hubbard model close to half filling. | Session 127: Mott Insulators and the Hubbard Model |
| 1636 | Atomic and Electronic Structures in Intermetallic CaBi2 Thin Films | Lyu, Yanfeng; Yuan, Hanming; Daneshmandi, Samira; Huyan, Shuyuan; Chu, Paul C. W. | We found the epitaxial CaBi 2 thin film has a Volmer-Weber growth mode and the surface has four totally different terminations: two are non-reconstructed, and the others are reconstructed to 1�2 and c(5�5), respectively. | Session 128: Surface Physics |
| 1637 | Surface phases on Te (0001) single crystal by low temperature STM | Dreyer, Michael; Li, Pengke; Appelbaum, Ian; Butera, Robert | Since evaporated thin films tend to grow in the (1000) direction, we use a Te single crystal to examine the (0001) surface by low temperature scanning tunneling microscopy/spectroscopy. | Session 128: Surface Physics |
| 1638 | Quantum saturation of capacitance in metals | Untiedt, Carlos; Olivera, Bernat; Fernandez-Rossier, Joaquin | Here we report the use of a Scanning Tunneling Microscope at low temperatures to study the variations of the capacitance as we approach two metallic electrodes made of Pt or Au. | Session 128: Surface Physics |
| 1639 | Comparison of Features for Au and Ir Adsorbed on the Ge (110) Surface | Chiang, Shirley; Xie, Ruikuan; Xing, Huai; Rahman, Talat; Fong, Ching | Comparison of Features for Au and Ir Adsorbed on the Ge (110) Surface | Session 128: Surface Physics |
| 1640 | Step-Spacing Distributions Revisited: Curved Crystals Bring Many Opportunities and Challenges to Analysis | Einstein, Theodore; Ortega, J. Enrique; Schiller, Frederik; Corso, Martina; Piquero-Zulaica, Ignacio; Lobo-Checa, Jorge; Mugarza, Aitor | Step-Spacing Distributions Revisited: Curved Crystals Bring Many Opportunities and Challenges to Analysis | Session 128: Surface Physics |
| 1641 | Tunneling Spectroscopy of the excitonic insulator phase in Ta2NiSe5 | Lee, Jinwon; Kang, Chang-Jong; Eom, ManJin; Kim, Jun Sung; Min, Byung; Yeom, Han Woong | We provide further evidence of the excitonic insulator phase in Ta 2NiSe 5 using scanning tunneling microscopy/spectroscopy. | Session 128: Surface Physics |
| 1642 | STM investigation of oxygen dissociation on Ag/Cu(111) near surface alloy | Cramer, Laura; Sykes, Charlie | Herein, we report on the observation of oxygen dissociation on extended Ag ensembles on Cu(111) via room-temperature scanning tunneling microscopy (STM). | Session 128: Surface Physics |
| 1643 | Phase Transitions of Condensates Investigated in an Atom by Atom Way | Ahsan, Aisha; Mousavi, S. Fatemeh; Nijs, Thomas; Nowakowska, Sylwia; Popova, Olha; W�ckerlin, Aneliia; Bj�rk, Jonas; Gade, Lutz; Jung, Thomas | This work is of fundamental interest and reveals the feature-rich behaviour of transitions of confined planar condensates which provide a showcase towards future ‘phase-transition’ storage media patterned by self-assembly. | Session 128: Surface Physics |
| 1644 | Macroscopic Transport Signatures of Alkali Metal Surface Doping in Quantum Materials | Parzyck, Christopher; Faeth, Brendan; Shen, Kyle | Here we present the use of macroscopic electrical transport measurements, in conjunction with potassium surface dosing, to examine doping effects in bulk single crystals of Ba(Fe 1-xCo x) 2As 2 and MoS 2 as well as thin film FeSe. | Session 128: Surface Physics |
| 1645 | A Comprehensive Computational Study of Adatom Diffusion on the Aluminum (1 0 0) Surface | Chapman, James; Batra, Rohit; Uberuaga, Blas; Pilania, Ghanshyam; Ramprasad, Ramamurthy | We find that there exist several exchange mechanisms with energy barriers less than or equal to that of the trivial hop mechanism, thereby highlighting mechanisms that can be relevant during surface/crystal growth. | Session 128: Surface Physics |
| 1646 | Novel electronic junctions in an atomic wire array: interfaces between metallic and charge density wave ordered electronic phases | Razzaq, Samad; Song, Sun Kyu; Yeom, Han Woong; Wippermann, Stefan | Combining scanning tunneling microscopy/spectroscopy (STM/STS) and ab initio molecular dynamics calculations, we explore the microscopic structure of interfaces between distinct electronic phases at the atomic scale. | Session 128: Surface Physics |
| 1647 | Ab initio investigation of ultrathin films of phase-change materials | Mazzarello, Riccardo; Ronneberger, Ider; Zanolli, Zeila; Wuttig, Matthias | In this work, we investigate thin layers of selected chalcogenides with varying thickness by first principles calculations based on density functional theory. | Session 128: Surface Physics |
| 1648 | Electronic structure of the LaB6 (001)-surface | Sohn, Florian; Buchsteiner, Philipp; Voigt, Jan; Wenderoth, Martin; Bloechl, Peter | Our study shows the necessity of surface calculations in order to understand the experimental data in detail and can be applied to various model systems. | Session 128: Surface Physics |
| 1649 | Quantum nutcracker for near-room-temperature H2 dissociation | Tao, Lei; Guo, Wei; Zhang, Yuyang; Du, Shixuan; Pantelides, Sokrates | Here we provide the theoretical foundations for an alternative paradigm of molecular dissociation — a �quantum nutcracker�. | Session 128: Surface Physics |
| 1650 | Structural stability and electronic properties of the chiral topological superconductor Pb3Bi/Ge(111): A first-principles study | Li, Leiqiang; Qin, Wei; Ren, Shang; Cui, Ping; Zhang, Zhenyu | In a separate study, we have shown that a hole-doped Pb 3Bi monolayer can serve as a highly appealing new platform for realizing two-dimensional (2D) intrinsic chiral topological superconductivity. | Session 128: Surface Physics |
| 1651 | Ultrafast electron imaging and diffraction of non-equilibrium structural dynamics in the charge-density wave system 1T-TaS2 | Ropers, Claus | This talk will discuss recent advances made by employing high-coherence ultrashort electron pulses from nanoscale field emitters, which substantially enhance the achievable image resolution in both real and reciprocal space. | Session 129: Ultrafast Collective Dynamics of Charge Density Waves |
| 1652 | Evidence for Topological Defects in a Photoinduced Charge Density Wave Transition | Kogar, Anshul; Zong, Alfred; Bie, Ya-Qing; Rohwer, Timm; Lee, Changmin; Baldini, Edoardo; Ergecen, Emre; Yilmaz, Mehmet; Freelon, Byron; Sie, Edbert Jarvis; Zhou, Hengyun; Straquadine, Joshua; Walmsley, Philip; Dolgirev, Pavel; Rozhkov, Alexander; Fisher, Ian; Jarillo-Herrero, Pablo; Fine, Boris; Gedik, Nuh | To this end, we investigate the light-induced melting of a unidirectional charge density wave (CDW) in LaTe3. | Session 129: Ultrafast Collective Dynamics of Charge Density Waves |
| 1653 | Ultrafast time-resolved x-ray scattering reveals diffusive charge order dynamics in La2-xBaxCuO4 | Mitrano, Matteo; Lee, Sangjun; Husain, Ali; Delacretaz, Luca; Zhu, Minhui; De La Pena, Gilberto; Sun, Xiaolan; Joe, Young; Reid, Alex; Wandel, Scott; Coslovich, Giacomo; Schlotter, William; van Driel, Tim; Schneeloch, John; Gu, Genda; Hartnoll, Sean; Goldenfeld, Nigel; Abbamonte, Peter | Here, we investigate the collective CO dynamics in the prototypical cuprate La 2-xBa xCuO 4 with time-resolved resonant soft x-ray scattering. | Session 129: Ultrafast Collective Dynamics of Charge Density Waves |
| 1654 | Exploring ideal charge-density-wave in superconducting YBCO via innovative uses of X-ray FEL and the pulsed magnet | Lee, Jun-Sik | In this context, we performed x-ray scattering at an x-ray free electron laser (FEL) in the presence of pulsed high magnetic fields. | Session 129: Ultrafast Collective Dynamics of Charge Density Waves |
| 1655 | Spin and charge dynamics of an interacting gas of small (bi)polarons across the mobility edge | Hettiarachchi, Gayan; Nishida, Yoshifumi; Masaki, Yusuke; Muhid, Mohd Nazlan Mohd; Hamdan, Halimaton | Based on the experimental results, we propose a phase diagram that adds to the theoretical studies and highlight that the polaron density and local interactions are important parameters that determine the balance among competing states in a many-polaron system. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1656 | Renormalization group analysis of superconductor-insulator transition with disorder | Lee, Chao-Jung; Mulligan, Michael | With the aim of understanding this quantum critical behavior, we consider a manifestly self-dual theory consisting of a Dirac fermion coupled to a Chern-Simons gauge field [2] in the presence of quenched disorder. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1657 | New microscopic paradigms in the doped Fermi-Hubbard model | Grusdt, Fabian; Bohrdt, Annabelle; Knap, Michael; Demler, Eugene | Here we present a microscopic trial wavefunction describing individual dopants as spinon-chargon composites. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1658 | Magnetism and correlation effects in titanium phosphate at high pressure | J�nsson, Johan; Ekholm, Marcus; Abrikosov, Igor | We have investigated the influence of magnetism and electron correlation on this behaviour upon compression. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1659 | Quantum electrodynamics of a superconductor-insulator quantum phase transition I: theory | Manucharyan, Vladimir; Kuzmin, Roman; Mencia, Ray; Grabon, Nicholas; Mehta, Nitish Jitendrakumar; Lin, Yen-Hsiang | In part I, we overview the possible issues with the DC transport measurements and describe the advantages of viewing a QPT from the high-energy side. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1660 | Quantum electrodynamics of a superconductor-insulator quantum phase transition II: experiment | Grabon, Nicholas; Kuzmin, Roman; Mencia, Ray; Mehta, Nitish Jitendrakumar; Lin, Yen-Hsiang; Manucharyan, Vladimir | In part I, we overview the possible issues with the DC transport measurements and describe the advantages of viewing a QPT from the high-energy side. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1661 | Structural investigation of the insulator-metal transition in NiS2?xSex compounds | Choi, Sungkyun; Han, Garam; Cho, Hwanbeom; Sohn, Byungmin; Park, Je-Guen; Kim, Changyoung | We report [1] on a combined measurement of high-resolution x-ray diffraction on powder and Raman scattering on single crystalline NiS2-xSex samples that exhibit the insulator-metal (IM) transition [2] with Se doping. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1662 | Quasi-periodic metal-insulator phase separation in strain engineered La0.66Sr0.33MnO3 thin films | Chen, Xinzhong; Li, Lin; Fan, Xiaodong; Niu, Zhijing; Liu, Mengkun; Zeng, Changgan | We report the electronic phase separation in the prototypical double exchange ferromagnet La0.66Sr0.33MnO3 (LSMO) thin films grown on LaAlO3 (LAO) substrate. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1663 | Observation of a new collective mode involved in the Verwey transition in magnetite | Belvin, Carina; Baldini, Edoardo; Ozel, Ozge; Lorenzana, Jos�; Gedik, Nuh | We observe signatures of a new mode that undergoes a dramatic softening as a function of laser fluence. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1664 | Electron localization in 2D extended Hubbard model | Terletska, Hanna; Paki, Joseph; Iskakov, Sergei; Maier, Thomas; Gull, Emanuel | We use the Dynamical Cluster Approximation to study the finite temperature phase transitions in 2D extended Hubbard model. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1665 | Amplitude (Higgs) mode at the superfluid-Mott glass transition | Crewse, Jack; Vojta, Thomas | We investigate the amplitude (Higgs) mode of a diluted quantum rotor model in two and three space dimensions close to their respective superfluid-Mott glass quantum phase transitions [1,2]. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1666 | Resistive Switching as Nonequilibrium Phase Transition | Han, Jong E; Li, Jiajun; Aron, Camille; Kotliar, Gabriel | Building on these successes, we propose an effective Ginzburg-Landau theory which paves the way to incorporating spatial fluctuations and to bringing the theory closer to a realistic description of the resistive switchings in correlated materials. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1667 | Interplay between superconducting and magnetic fluctuations in the doped 2D Hubbard model | Kauch, Anna; H�rbinger, Felix; Li, Gang; Held, Karsten | In this work we focus on the doped regime, where the magnetic fluctuations become incommensurate [2]. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1668 | Effect of Spin-Selective Disorder on the Hubbard model. | Narayanan, Rajesh; Karmakar, Madhuparna; Kunwar, Shashikant; Chakraborty, Prabuddha | For the repulsive Hubbard model with spin-selective disorder, by using a determinant quantum Monte-Carlo scheme we show evidence for the existence of a metal-insulator transition for fillings away from half-fillings. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1669 | Percolative transport in the metal-insulator phase coexistence region of Mott organics | Tan, Yuting; Dobrosavljevic, Vladimir | Here we theoretically re-examine the transport properties in this regime, and show that an alternative viewpoint [2], based in the dynamical mean-field theory (DMFT) and a percolation picture [3], naturally explains all the observed anomalies. | Session 130: Metal/Insulator and Superconductor/Insulator |
| 1670 | Second harmonic generation from nanoparticles of noncentrosymmetric geometry | Singla, Raksha; Mochan, W | In this work, we explore SHG from particles of CS materials with non-CS geometry. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1671 | Quantum Dot Supercrystals: Assembly and properties | Marino, Emanuele; Kodger, Tom; Schall, Peter | We combine emulsion-templated assembly with in situ small-angle X-ray scattering to obtain direct insight into the nanoscale interactions underlying the nucleation, growth and densification of quantum dot supercrystals. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1672 | Electronic, Optical and Transport Properties of PbS Nanocrystal Superlattices | Liu, Yun; Peard, Nolan; Grossman, Jeffrey | In this work, first-principles calculations are applied to investigate the electronic, optical and transport properties of PbS CQD superlattices. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1673 | Nanoscale Core-Shell Hyperbolic Metamaterial for Ultralow Threshold Laser Action | Lin, Hung-I; Yadav, Kanchan; Shen, Kun-Ching; Haider, Golam; Chen, Yit-Tsong; Chen, Yang-Fang | We develop the nanoscale core-shell hyperbolic metamaterial (HMM) possessing a remarkably coupling effect in between the multishell components, which is due to the formation of higher density of states and longer time of collective oscillations of the electrons than the plasmonic-based pure metal nanoparticles. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1674 | Hot-electron generation and energy transfer in plasmonic metastructures with hot spots: Quantum and Classical mechanisms | Govorov, Alexandre; Vazquez Besteiro, Lucas; Wang, Zhiming | Here we develop a theory describing the generation rates and the energy distributions of hot electrons in nanocrystals with various geometries. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1675 | Solid-state diffusion in Cu core/Ni shell nanoparticles | Ren, Jie; Schmidt, Robert; Theopold, Klaus; Unruh, Karl | Solid-state diffusion in Cu core/Ni shell nanoparticles | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1676 | Growth and Shape Stability of Bi-metallic Nano-particles | Durukanoglu, Sondan; Ilker, Efe; Konuk, Mine; Madran, Melihat | Here we report results of atomic scale calculations on shape evolution and stability of grown bi-metallic Cu-Ni nano-particles using molecular static and dynamic simulations. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1677 | Interface Modification in Type-II ZnCdSe/(Zn)CdTe QDs for High Efficiency Intermediate Band Solar Cells | Deligiannakis, Vasilios; Dhomkar, Siddharth; Claro, Marcel; Kuskovsky, Igor; Tamargo, Maria | We show that the new growth sequence allows for improved control of the interfacial composition and simplifies the fabrication of the intermediate band solar cell device structure based on these QDs, since additional strain balancing schemes are no longer required to grow stress-free structures. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1678 | Observation of optical referigeration on CdSe/CdS quantum dots | Hua, Muchuan; Decca, Ricardo | Observation of optical referigeration on CdSe/CdS quantum dots | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1679 | Confined excitons in CdSe/CdMnS and CdSe/ZnMnS nanoplatelets | Najafi, Arman; Zhang, Peiyao; Norden, Tenzin; Bhattacharya, Arinjoy; Pientka, James; Shendre, Sushant; Delikanli, Savas; Demir, Hilmi Volkan; Petrou, Athos | We have used absorption and PL spectroscopies to study the magneto-optical properties of colloidal CdSe/CdMnS and CdSe/ZnMnS core-shell nanoplatelets. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1680 | First-Principles Calculations of Nanoplatelet Heterostructures: Surface Ligands and Strain Fields | Mazzotti, Sergio; Greenwood, Arin; Norris, David; Galli, Giulia | Here we determine the structure of both CdSe-core and CdSe/CdS-core/shell NPLs, using Density Functional Theory (DFT) and the Qbox code[1]. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1681 | First Principles Calculations of Nanoplatelet Heterostructures: Optoelectronic Properties | Greenwood, Arin; Mazzotti, Sergio; Hazarika, Abhijit; Coropceanu, Igor; Talapin, Dmitri; Galli, Giulia | Here we use Density Functional Theory and the Qbox code [2] to investigate the unique optoelectronic properties of CdS/CdSe core-shell NPLs. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1682 | Low-temperature photoluminescence spectroscopy of single core/shell nanoplatelets | Peng, Lintao; Coropceanu, Igor; Talapin, Dmitri; Ma, Xuedan | Here, we perform single NPL spectroscopic measurements at cryogenic temperatures. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1683 | Tuning the Photophysical Properties of Colloidal Two-Dimensional Nanoplatelets | Zhou, Qunfei; Cho, Yeongsu; Yang, Shenyuan; Weiss, Emily; Berkelbach, Timothy; Darancet, Pierre | We develop a simple quantitative electrostatic theory describing this effect through dipole-dipole interactions mediated by platelet-ligand interactions and ligand-dependent dielectric function. | Session 131: Nanoparticles and Nanoplatelets: Structural and Optoelectronic Properties and Phenomena |
| 1684 | Kitaev spin liquids in spin-orbit coupled correlated materials | Kee, Hae-Young | Using a generic nearest neighbour spin model with bond-dependent interactions, I will present numerical evidence of an extended regime of quantum spin liquids. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1685 | Field induced quantum spin liquid with spinon Fermi surfaces in the Kitaev model | Jiang, Hong-Chen; Wang, Changyan; Huang, Biao; Lu, Yuan-Ming | In this work we address the nature of an enigmatic gapless paramagnetic phase in the antiferromagnetic Kitave model, under an intermediate magnetic field perpendicular to the plane. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1686 | Magnetic field induced intermediate gapless spin-liquid phase with a spinon Fermi surface | Patel, Niravkumar; Trivedi, Nandini | Using the peaks of spin structure factor, we propose an existence of a spinon Fermi surface in the intermediate phase. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1687 | Pristine graphene contacts to exfoliated ?-RuCl3 crystals | Balgley, Jesse; Zhou, Boyi; Kelley, Paula; Mandrus, David; Henriksen, Erik | In this talk, we present device configurations for interrogating exfoliated ?-RuCl 3 crystals in the few-layer limit by the fabrication of graphene/?-RuCl 3 heterostructures. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1688 | Effect of pressure, stress and electronic modification on alpha-Rucl3 | Biswas, Sananda; Winter, Stephen; Valenti, Roser | We have explored these possibilities by applying stress and electronic modifications. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1689 | Raman spectroscopy evidence for dimerization and Mott collapse in ?-RuCl3 under pressures | Mei, Jiawei | We perform Raman spectroscopy studies on ?-RuCl 3 at room temperature to investigate its phase transitions of magnetism and structure under pressures. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1690 | NMR observation of field induced fractionalized spin excitations in the Kitaev spin liquid candidate | Shimizu, Yasuhiro; Nagai, Yuya; Jinno, Takaaki; Itoh, Masayuki; Yoshitake, Junki; Nasu, Joji; Motome, Yukitoshi | Here we report nuclear magnetic and quadrupole resonance measurements down to 0.4 K [1]. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1691 | Spin wave analysis of the Kitaev honeycomb magnet ?-RuCl3 | Do, Seunghwan; Lee, Minseong; Lee, J.H.; Park, Sang-Youn; Voneshen, David; Choi, Kwang-Yong; Park, Jae-Hoon; Ji, Sungdae | In this talk, we provide a well describable picture of magnetic excitations in the magnetically ordered state of a-RuCl3 by using inelastic neutron scattering (INS) measurement. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1692 | New Features in the Field-dependent Thermal Conductivity of ?-RuCl3 at Low Temperatures | Czajka, Peter; Gao, Tong; Lin, Jingjing; Kelley, Paula; Banerjee, Arnab; Balz, Christian; Yan, Jiaqiang; Mandrus, David; Nagler, Stephen; Ong, Nai-Phuan | We present measurements of the thermal conductivity as a function of temperature and in-plane magnetic field that were performed between 0.4 and 1.7K. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1693 | High Temperature Fermi Statistics from Majorana Fermions in an Insulating Magnet | Wang, Yiping; Osterhoudt, Gavin; Tian, Yao; Kelley, Paula; Banerjee, Arnab; Goldstein, Thomas; Yan, Jun; Knolle, Johannes; Nasu, Joji; Motome, Yukitoshi; Nagler, Stephen; Mandrus, David; Burch, Kenneth | Here we report all three in ?-RuCl3, at temperatures exceeding liquid nitrogen via new energy gain as well as loss Raman spectra and a unique framework to identify the statistical properties of the Kitaev QSL. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1694 | Origin of the saw-tooth torque in spin-orbital-coupled magnets: Application to ?-RuCl3 | Valenti, Roser; Riedl, Kira; Winter, Stephen | By a combination of density functional theory calculations, exact diagonalization and semiclassical considerations, we show here that bilinear anisotropic interactions and/or g-anisotropy are each sufficient to explain the observed torque response, which may be distinguished on the basis of high-field measurements. | Session 132: Spin Liquids: Alpha-RuCl3 |
| 1695 | Polaritons, a growing field of condensate studies | Snoke, David | In this talk I will review the physics of Bose condensation of polaritons, sometimes called �superfluids of light,� and review recent experimental results, such as equilibrium condensation, long-distance propagation to the global ground state of a system, phase locking of spatially separated condensates, evidence for superfluidity, measurement of correlation functions, and propagation in quasi-one-dimensional systems. | Session 133: Polariton Condensates at Room Temperature and Equilibrium |
| 1696 | Room temperature polariton condensate using a biologically produced fluorescent protein | Gather, Malte | We found that the barrel-like molecular structure of fluorescent proteins prevents concentration-induced quenching of fluorescence and drastically reduces singlet-singlet annihilation at high exciton densities. | Session 133: Polariton Condensates at Room Temperature and Equilibrium |
| 1697 | Room-temperature superfluidity of exciton-polaritons | Kena-Cohen, Stephane | We will describe our observations of superfluid polariton propagation at room-temperature in organic microcavities and efforts to find other material systems where similar effects can be observed at much lower powers. | Session 133: Polariton Condensates at Room Temperature and Equilibrium |
| 1698 | Equilibrium and Superfluidity in Polariton Condensates | Szymanska, Marzena | I will discuss a few examples of novel non-equilibrium collective effects in polariton systems, such as the Kardar-Parisi-Zhang (KPZ) superfluid and the newly discovered rigid fluid phase, as well as the recently achieved equilibrium limit. | Session 133: Polariton Condensates at Room Temperature and Equilibrium |
| 1699 | Room Temperature Long-Range Coherent Exciton Polariton Condensate Propagation in Lead Halide Perovskites Microwire Cavity | SU, RUI; Diederichs, Carole; Liew, Timothy; Xiong, Qihua | Here, we demonstrate the capability of long-range non-resonantly excited polariton condensate flow at room temperature in a one-dimensional all-inorganic cesium lead bromide (CsPbBr 3) perovskite microwire microcavity. | Session 133: Polariton Condensates at Room Temperature and Equilibrium |
| 1700 | Instabilities of 2d quantum critical metals in the Nf?0 limit | S�terskog, Petter | We study a Fermi surface coupled to fluctuations of one or more critical order parameters in 1+2 dimensions. | Session 134: Quantum Criticality: Theory |
| 1701 | Itinerant Quantum Critical Point with Fermion Pockets and Hot Spots | Liu, ZiHong; Pan, Gaopei; Xu, Xiao Yan; Sun, Kai; Meng, Zi Yang | Combining determinantal quantum Monte Carlo (DQMC) and elective momentum ultra-size quantum Monte Carlo (EQMC) methods, we systematically investigated the itinerant quantum critical point on a 2D square lattice with antiferromagnetic spin fluctuations at wavevector Q = (?, ?). | Session 134: Quantum Criticality: Theory |
| 1702 | Emergent O(4) Symmetry and Conserved Current Continuum at a Deconfined Quantum Critical Point in Shastry-Sutherland Model | Lee, Jong Yeon; You, Yizhuang; Vishwanath, Ashvin | In this work, we investigate a possibility of deconfined quantum phase transition in the two dimensional Shastry-Sutherland spin model. | Session 134: Quantum Criticality: Theory |
| 1703 | Quantum criticality in Ising chains with random hyperuniform couplings | Crowley, Philip; Laumann, Christopher; Gopalakrishnan, Sarang | We show this in the critical hyperuniform random Ising chain, where increasing hyperuniformity yields a line of Griffiths-free infinite-randomness critical points with continuously varying exponents, this line terminates at the Ising class �critical Ising insulator�. | Session 134: Quantum Criticality: Theory |
| 1704 | Deconfined quantum criticality from the $\mathrm{QED}_{3}$-Gross-Neveu-Yukawa model: the $1/N$ expansion revisited | Boyack, Rufus; Rayyan, Ahmed; Maciejko, Joseph | Motivated by this, we use the $1/N$ expansion to study the $\mathrm{QED}_{3}$-GNY model in fixed three spacetime dimensions, with $N$ flavors of two-component Dirac fermions. | Session 134: Quantum Criticality: Theory |
| 1705 | Dynamical spin susceptibility of a Fermi liquid without conservation law | Sharma, Prachi; Maslov, Dmitrii | Here, we study the effect of residual interaction on the chiral spin modes of a FL with weak Rasbha SOI for a model of dynamic screened Coulomb potential at finite q by going beyond the random phase approximation(RPA). | Session 134: Quantum Criticality: Theory |
| 1706 | Critical strange metal from fluctuating gauge fields in a solvable random model | Patel, Aavishkar; Sachdev, Subir | Building upon techniques employed in the construction of the Sachdev-Ye-Kitaev model, which is a solvable (0+ 1)-dimensional model of a non-Fermi liquid, we develop a solvable infinite-ranged random-hopping model of fermions coupled to fluctuating U (1) gauge fields. | Session 134: Quantum Criticality: Theory |
| 1707 | Fermion-induced quantum critical points in a generalized SU(N) fermion model | Li, Bohai; Li, Zixiang; Yao, Hong | Here we investigate the nature of quantum phase transition for case of N=1. | Session 134: Quantum Criticality: Theory |
| 1708 | Incommensurate 2kF charge density wave quantum critical points in two-dimensional metals | Punk, Matthias; Halbinger, Johannes; Pimenov, Dimitri | Starting from a model of two antipodal hot spots at the Fermi surface which are connected by a 2k F wavevector, we perform a controlled, perturbative renormalization group analysis in the spirit of earlier work by Dalidovich and Lee [1]. | Session 134: Quantum Criticality: Theory |
| 1709 | Quantum criticality of a quantum nonlinear sigma model with Kondo coupling: a renormalization group study | Liu, Chia-Chuan; Si, Qimiao | Here we approach the problem from the magnetically ordered side, using a quantum non-linear sigma model with an additional coupling to itinerant fermions [3]. | Session 134: Quantum Criticality: Theory |
| 1710 | Incoherent metal in the quantum critical region of SU(2) symmetric model | Cha, Peter; Parcollet, Olivier; Georges, Antoine; Kim, Eun-Ah | With the aim at exploring the robustness of this physics beyond the large-N limit, we consider an SU(2) symmetric spin-1/2 model with disordered magnetic exchange and repulsive Hubbard local interaction, in the framework of dynamical mean-field theory. | Session 134: Quantum Criticality: Theory |
| 1711 | Deconfined Quantum Critical Points in 3+1D | Bi, Zhen; Todadri, Senthil | In this work, we present several examples of Deconfined Quantum Critical Points between Symmetry Protected Topological phases in 3+1D for both bosonic and fermionic systems. | Session 134: Quantum Criticality: Theory |
| 1712 | Quantum-critical conductivity of the Dirac fluid in graphene | LYU, TAIRU; Gallagher, Patrick; yang, chanshan; Wang, Feng | At charge neutrality, we observe the quantum-critical scattering rate characteristic of the Dirac fluid. | Session 134: Quantum Criticality: Theory |
| 1713 | Emergent Spacetime Supersymmetry at Superconducting Quantum Criticality of a single Dirac Cone | Li, Zixiang; Vaezi, Abolhassan; Mendl, Christian; Yao, Hong | Here, we introduce a lattice realization of a single Dirac fermion in 2+1 dimensions with attractive interactions that preserves both time-reversal and chiral symmetries. | Session 134: Quantum Criticality: Theory |
| 1714 | Manipulation of Superconductivity through Parametric Driven Phonons | Wang, Yao; Shi, Tao; Kasper, Valentin; Cirac, Juan; Demler, Eugene | In this work, we perform a numerical study of an electron-phonon system after dynamically squeezing the phonons, which mimics the leading impact of the infrared pump. | Session 135: Non-equilibrium Superconductivity |
| 1715 | Allowing for real coherent phonon bursts to defend and actuate the superconducting state in YBCO | James, John | A model is presented in which chain site, out of CuO2 plane, oxygen atoms tend to mutually repel for nearest neighbor sites while attracting at second nearest neighbor, causes the depletion of chain oxygen in the vicinity of all defects. | Session 135: Non-equilibrium Superconductivity |
| 1716 | Light-induced d-wave superconductivity through Floquet-engineered Fermi surfaces in cuprates | Kennes, Dante; Claassen, Martin; Sentef, Michael; Karrasch, Christoph | We introduce a mechanism for light-induced Floquet engineering of the Fermi surface to dynamically tip the balance between competing instabilities in correlated condensed matter systems in the vicinity of a van-Hove singularity. | Session 135: Non-equilibrium Superconductivity |
| 1717 | Wavelength Dependence of Pumping a Superconductor | Tang, Ta; Devereaux, Thomas; Moritz, Brian | Here we explore the effects of pumping the cuprates at different wavelengths. | Session 135: Non-equilibrium Superconductivity |
| 1718 | Transient superconductivity without superconductivity | Chiriaco, Giuliano; Millis, Andrew; Aleiner, Igor | We propose an alternative phenomenology based on the assumption that the pulse creates a non-superconducting, though non-equilibrium situation in which the linear response conductivity is negative. | Session 135: Non-equilibrium Superconductivity |
| 1719 | Time-dependent McMillan-Ginzburg-Landau models for light-induced ultrafast phase transitions in cuprates and other complex materials | Allen, Roland; Weng, Jian; Tagaras, Ross | The description of both static phase diagrams and ultrafast dynamics with such models will be discussed, with a few examples. | Session 135: Non-equilibrium Superconductivity |
| 1720 | Impact of damping on superconducting gap dynamics induced by intense terahertz pulses | Cui, Tianbai; Yang, Xu; Vaswani, Chirag; Wang, Jigang; Fernandes, Rafael; Orth, Peter | We develop a semi-phenomenological model where these relaxation processes are conveniently expressed as T 1 and T 2 relaxation times in the pseudospin formalism. | Session 135: Non-equilibrium Superconductivity |
| 1721 | Control of Non-equilibrium Quantum Phases and Collective Modes in Superconductors by Terahertz Light-Driven Supercurrents | Mootz, Martin; Perakis, Ilias; Wang, Jigang | Here we demonstrate control of the non-equilibrium dynamics in superconductors by THz light-driven supercurrents. | Session 135: Non-equilibrium Superconductivity |
| 1722 | Collective modes in superconductors and their coupling to near field THz probes | Sun, Zhiyuan; Fogler, Michael; Millis, Andrew | We theoretically investigate methods to observe the phase (Anderson-Bogoliubov-Goldstone), amplitude (Higgs) and Carlson-Goldman modes using THz near field techniques. | Session 135: Non-equilibrium Superconductivity |
| 1723 | The Higgs Amplifier | Podolsky, Daniel; Wang, Yao; Demler, Eugene | We study theoretically the optical response of a quenched superconductor and find that Higgs modulations lead to a marked enhancement of the reflectance. | Session 135: Non-equilibrium Superconductivity |
| 1724 | Collective modes in non-equilibrium in unconventional superconductors with competing ground states | M�ller, Marvin; Volkov, Pavel; Eremin, Ilya | We consider a single-band square lattice model with nearest neighbor attraction. | Session 135: Non-equilibrium Superconductivity |
| 1725 | Control of Competing Superconductivity and Charge Order By Non-equilibrium Currents | Matthies, Anne; Li, Jiajun; Eckstein, Martin | In this work we study the competing CDW and SC order in the attractive Hubbard model under a voltage bias, using non�equilibrium steady-state (NESS) dynamical mean-field theory. | Session 135: Non-equilibrium Superconductivity |
| 1726 | Efficient Prediction of Time-and Angle-Resolved Photoemission Spectroscopy Measurements on a Non-Equilibrium BCS Superconductor | Xu, Tianrui; Morimoto, Takahiro; Lanzara, Alessandra; Moore, Joel | We present equilibrium and non-equilibrium calculations of tr-ARPES spectrum from our model and discuss the signatures of different types of superconducting dynamics. | Session 135: Non-equilibrium Superconductivity |
| 1727 | Probing Out-of-Equilibrium Spin Modes in a Mesoscopic Superconductor | Kuzmanovi?, Marko; WU, BIYI; Weideneder, Maximilian; Quay, Charis; Aprili, Marco | In this work we studied the diffusion of quasiparticles injected into a spin-split superconducting Al nanowire, and performed a spectroscopic study of the quasiparticle population using spin sensitive detectors located at different distances from the injection point. | Session 135: Non-equilibrium Superconductivity |
| 1728 | Optimal probabilistic work extraction beyond the free energy difference with a single-electron device | Maillet, Olivier; Erdman, Paolo; Cavina, Vasco; Bhandari, Bibek; Mannila, Elsa; Peltonen, Joonas; Mari, Andrea; Taddei, Fabio; Jarzynski, Christopher; Giovannetti, Vittorio; Pekola, Jukka | With two carefully designed out-of-equilibrium driving cycles featuring kicks of the control parameter, we demonstrate work extraction up to large fractions of the thermal/charging energy or with probabilities substantially greater than 1/2, despite zero free energy difference over the cycle. | Session 135: Non-equilibrium Superconductivity |
| 1729 | Layer and Growth Temperature Dependent Electronic Properties of VSe2 Thin Films | Chen, Guannan; Howard, Sean; Ganguli, Somesh; Madhavan, Vidya; Swiech, Waclaw | In this work, we grow VSe2 thin films at two growth temperatures (Tg) by a home-built MBE and study the samples in a 4K STM. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1730 | Transport properties of high-mobility InSe in Quantum Hall regime. | Shcherbakov, Dmitry; Stepanov, Petr; Yang, Jiawei; Memaran, Shahriar; Zheng, Wenkai; Watanabe, Kenji; Taniguchi, Takashi; Balicas, Luis; Lau, Chun Ning | Transport properties of high-mobility InSe in Quantum Hall regime. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1731 | New Mechanical Exfoliation Technique for Preparing Large Area 2D Materials and Special Structures | HUANG, Yuan; Zhao, Wen Juan; Zhao, Lin; Liu, Guo Dong; Sutter, Peter; Zhou, Xingjiang | The key of this technique is to enhance the van der Waals interaction between the layered materials and the substrates, which can be realized by optimizing the exfoliation process, such as substrate types, temperature and vacuum. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1732 | Distinct ultrafast carrier dynamics governed by spin filtering in bulk and single-layer WSe2 | Liu, Ro-Ya; Lin, Meng-Kai; Chen, Peng; Suzuki, Takeshi; Clark, Philippa; Lewis, Nathan; Cacho, Cephise; Springate, Emma; Chang, Chia-Seng; Okazaki, Kozo; Flavell, Wendy; Matsuda, Iwao; Chiang, Tai-Chang | We report herein a comparative study of bulk WSe2 and single-layer (SL) WSe2 grown on bilayer-graphene-terminated SiC. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1733 | Investigation of charge density wave transitions in a proximally coupled single-layer TiTe2/TiSe2 system | Lin, Meng-Kai; Hlevyack, Joseph; Chen, Peng; Liu, Ro-Ya; Chiang, Tai-Chang | Investigation of charge density wave transitions in a proximally coupled single-layer TiTe2/TiSe2 system | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1734 | Electronic and structural properties of the phase transitions in TaTe2-xSex | Chen, Chen; Kim, Heung Sik; Admasu, Alemayehu; Zhang, Wenhan; Huang, Fei-Ting; Cheong, Sang-Wook; Haule, Kristjan; Vanderbilt, David; Wu, Weida | Here, we use combination of scanning tunneling microscopy/spectroscopy, low energy electron diffraction, and density functional theory calculations to study the temperature dependence of CDW in undoped and Se doped TaTe 2 single crystals. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1735 | Confining electronic states with domain walls in ferroelectric SnTe monolayers | Chang, Kai; Miller, Brandon; Yang, Hao; Lin, Haicheng; Xue, Qikun; Chen, Xi; Ji, Shuaihua; Barraza-Lopez, Salvador; Parkin, Stuart S | Here, we report the first observation of electronic standing waves near the valence band maximum in a SnTe monolayer that is generated by the reflection from ferroelectric domain walls. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1736 | Electrical and Optical Characterization of Ultrathin Tellurium Nanostructures Synthesized by Vapor Phase Deposition | Sapkota, Keshab; Medlin, Douglas L.; Lu, Ping; Luk, Ting-Shan; Lu, Tzu-Ming; Wang, George T. | Here we present the vapor phase synthesis and characterization of novel ultrathin Te nanostructures having thickness down to 3.5 nm. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1737 | Biexcitons in Monolayer Transition Metal Dichalcogenides Tuned by Magnetic Fields | Stevens, Christopher; Mapara, Varun; Paul, Jagannath; Cox, Timonthy; Sahoo, Prasana; Gutierrez, Humberto; Turkowski, Volodymyr; Semenov, Dimitry; McGill, Stephen; Kapetanakis, Myron; Perakis, Ilias; Hilton, David; Karaiskaj, Denis | The results were then modeled using time-dependent density function theory revealed the dephasing lifetime is dominated by the inter-valley biexcitons. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1738 | Controlled and Tunable Light Emission of Heat Treated Black Phosphorus: Towards Tunable Optoelectronic Devices | Alodan, Sarah; Alsaffar, Fadhel; Gorham, Justin; DelRio, Frank; Amer, Mohammed | We show tunable wideband photoluminescence (PL) between 590nm to 720nm, with a tunablilty resolution of 5nm. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1739 | Reversible Thermally Driven Phase Transformation in Ultrathin Ferroelectric In2Se3 Layers | Zhang, Fan; Wang, Zhe; Nie, Anmin; Xiang, Jianyong; Zhu, Wenguang; Liu, Zhongyuan; Tao, Chenggang | At room temperature, we observed that ultrathin In 2Se 3, ranging from ~20 layers to monolayer, stabilized at the ? phase with a superlattice. | Session 136: Surface Studies of Transition Metal Chalcogenides |
| 1740 | Numerical study of the momentum and doping dependence of “hot spots” and single-particle spectra in electron-doped cuprates | Moritz, Brian; Wang, Yao; Huang, Edwin; Devereaux, Thomas | We present a systematic study of the single-particle spectral function in electron-doped cuprates determined from state-of-the-art numerical calculations using cluster perturbation theory. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1741 | Phenomenological Theory for Pseudogap and Superconducting Phases of High-Temperature Superconductors | Zhang, Jianhao; Li, Sen; Ma, Yao; Weng, Zheng-Yu | We present a phenomenological Green’s function to characterize the superconducting and pseudogap phases of the cuprates based on a microscopic theory of doped Mott insulators. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1742 | Intrinsic Pair Density Waves in CDMFT Improve Agreement with Cuprates | Verret, Simon; Foley, Alexandre; Roy, Jyotirmoy; Charlebois, Maxime; Senechal, David; Tremblay, Andre-Marie | Here, we investigate how this manifests itself. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1743 | FLEX+DMFT approach for superconductivity in multi-band systems: A study on bilayer Hubbard model | Ogura, Daisuke; Kuroki, Kazuhiko | As a way to circumvent this dilemma, we can consider the multi-band Hubbard model as discussed in the previous studies [1, 2]. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1744 | Enhancement of d-wave Pairing in Cuprates by Electron-phonon Couplings | Cai, Xun; Li, Zixiang; Yao, Hong | We study the microscopic model of electrons on the 2D square lattice with both electron-electron and electron-phonon interactions. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1745 | Quantifying Quantum Order Transitions in Cuprate High-Tc Superconductor | She, Zhen-Su; Li, Rong | Here, we identify a new similarity between the two: both display symmetry-breaking transition embedded in nontrivial transport. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1746 | Instabilities of Bogoliubov-de Gennes quasiparticles in the zeroth Landau level of nodal superconductors under strain | Nica, Emilian; Erten, Onur | We study the interaction-driven instabilities of the Bogoliubov-de Gennes quasiparticles in the flat, zeroth Landau-level. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1747 | Projected BCS theory for high-temperature superconductivity | Kwon, HyunWoong; Park, Kwon | To investigate the validity of this prospect, we perform a variational analysis of the BCS model Hamiltonian projected onto the constrained Hilbert space with infinitely strong correlation, or no double occupancy. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1748 | Vortex structure and Hall conductivity in d-wave superconductors | Kalnitsky, Vladimir; Lindner, Netanel; Berg, Erez; Huber, Sebastian | We show that a similar effect occurs in a model for a d-wave superconductor, and find a rich phase diagram of ? xy as a function of interaction strength and doping p: in addition to a sign reversed phase, we find a phase in which ? xy ? p . | Session 137: Superconductivity: Copper Oxide – Theory |
| 1749 | Electronic States Induced by Doping a Mott Insulator in the Presence of Antiferromagnetic Order | Kohno, Masanori | Here, by taking into account spin fluctuation in the random-phase approximation, electronic states exhibiting momentum-shifted spin-wave dispersion relation are shown to emerge in the Mott gap following the doping of a Mott insulator even though antiferromagnetic order persists [5]. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1750 | High Tc superconductivity in strong electron-phonon interacting systems with frustrated charge order | Li, Zixiang; Cohen, Marvin; Lee, Dunghai | In this talk, I will discuss how geometric frustration inhibits charge order and allows superconductivity to benefits from strong electron-phonon coupling. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1751 | Continuing search for the origin of HTSC: DFT studies of selected copper oxide proxy structures reviewed and paths forward suggested | Grant, Paul | In this presentation, we review our past attempts to uncover the pairing mechanism underlying high temperature superconductivity in copper oxide compounds and suggest possible paths forward. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1752 | Singlet s�-wave pairing in quasi-one-dimensional ACr3As3 (A=K, Rb, Cs) superconductors | Zhang, Li-Da; Zhang, Xiaoming; Hao, Juan-Juan; Huang, Wen; Yang, Fan | We study in this work the superconducting instabilities of a representative compound, the newly synthesized KCr 3As 3 superconductor. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1753 | Superconductivity in systems exhibiting the Altshuler-Aronov anomaly | Hlubina, Richard; Rabatin, Branislav | We present a full numerical solution for two normal-state and two anomalous self-energies. | Session 137: Superconductivity: Copper Oxide – Theory |
| 1754 | Inequivalence of the zero-momentum Limits of Transverse and Longitudinal Dielectric Response in the Cuprates | Setty, Chandan; Padhi, Bikash; Limtragool, Kridsanaphong; Husain, Ali; Mitrano, Matteo; Abbamonte, Peter; Phillips, Philip | In this talk, I will address the question of the mismatch between the zero momentum limits of the transverse (optical conductivity) and longitudinal (momentum resolved EELS) dielectric functions observed in the cuprates. | Session 138: Undisguised View of the Mott Transition |
| 1755 | Quasi-Continuous Mott Transition from a Spin Liquid to a Fermi Liquid at Low Temperatures | Furukawa, Tetsuya | In the present study, we demonstrate the case of a quasi-continuous Mott transition from a Fermi liquid to a spin liquid in ?-(ET) 2Cu 2(CN) 3[4]. | Session 138: Undisguised View of the Mott Transition |
| 1756 | Coherent Spin Excitations and Correlated Fermi Liquid in Genuine Mott Systems | Pustogow, Andrej | We identify frustrated molecular conductors as ideal realizations of the single-band Hubbard model in contrast to transition-metal oxides with a more complicated band structure, such as the charge-transfer insulator Herbertsmithite [2]. | Session 138: Undisguised View of the Mott Transition |
| 1757 | A unified perspective on cuprates and layered organic superconductors | Tremblay, Andre-Marie; H�bert, Charles-David; Semon, Patrick | A unified perspective on cuprates and layered organic superconductors | Session 138: Undisguised View of the Mott Transition |
| 1758 | Electron-Hole Doping Asymmetry of Superconductivity in a Strain-Tuned Organic Mott Transistor | Kawasugi, Yoshitaka; Seki, Kazuhiro; Pu, Jiang; Takenobu, Taishi; Yunoki, Seiji; Yamamoto, Hiroshi; Kato, Reizo | By combining electrostatic doping and bending-strain techniques, we are able to control the band filling and bandwidth of an organic Mott insulator ?-(BEDT-TTF)2Cu[N(CN)2]Cl in a single sample. | Session 138: Undisguised View of the Mott Transition |
| 1759 | Tuning vortex fluctuations and the resistive transition in superconducting films with a thin overlayer | Gurevich, Alexander | These results suggest that bilayers can be used as model systems for systematic investigations of optimization of fluctuations in superconductors. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1760 | Superconductivity in a disordered vortex lattice | Ghosal, Amit; Datta, Anushree; Banerjee, Anurag; Trivedi, Nandini | Here we show that the simultaneous presence of these perturbations leads to an interesting evolution of superconductivity. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1761 | Flux flow solution as a boundary value problem of the Time-dependent Ginzburg-Landau equation | Sugai, Shunki; Kurosawa, Noriyuki; Kato, Yusuke | We study force on vortices in type II superconductors (SC) with finite Ginzburg-Landau parameter ? within the generalized time-dependent-Ginzburg-Landau (TDGL) equations developed by Watts-Tobin, Kr�henb�hl Kramer (1981) for dirty s-wave SC. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1762 | Attractive interaction between superconducting vortices in tilted magnetic fields | Suderow, Hermann | Here we present magnetic force microscopy experiments in tilted magnetic fields in $Bi_{2}Sr_{2}CaCu_{2}O_{8}$. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1763 | Imaging individual superconducting vortices in amorphous Mo0.8Si0.2 by scanning SQUID-on-tip | Ceccarelli, Lorenzo; Vasyukov, Denis; Wyss, Marcus; Romagnoli, Giulio; Poggio, Martino | Here, we use a scanning nanometer-scale superconducting quantum interference device (nanoSQUID) [1,2] to image individual vortices in a Mo0.8Si0.2 amorphous thin film. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1764 | Network Science Approach to Confined Vortex Matter | Ma, Xiaoyu; Li, Wenzhao; Toroczkai, Zoltan; Janko, Boldizsar | In order to perform a systematic study of these properties, we propose a method based on a network science approach. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1765 | Computer Simulation Study on Confined Vortex Matter | Li, Wenzhao; Ma, Xiaoyu; Janko, Boldizsar; Toroczkai, Zoltan | In order to explore theoretically the properties of confined vortex matter, we are using computational methods developed for Lennard-Jones clusters, and we are able to explore the energy landscapes of vortex systems as well. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1766 | Time analysis of the voltage response created by a critical current pulse of superconducting NbTi nanowires | Harrabi, Khalil; Mekki, Abdelkarim; Maneval, Jean Paul | We have investigated in time domain the voltage response of superconducting NbTi filaments with different thickness to a supercritical (I>I c) step-pulse of electrical current. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1767 | Critical current and persistent supercurrent in asymmetric superconducting rings | Hudis, Jacob; Chiorescu, Irinel; Xiong, Peng | We have performed modeling of the critical current in a superconducting ring as a function of geometrical asymmetries. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1768 | Rotational transition, dislocations and domain formation in vortex systems with combined six- and 12-fold anisotropic interactions | Olszewski, Maciej; Eskildsen, Morten; Reichhardt, Charles; Reichhardt, Cynthia | We introduce a model of vortices in type-II superconductors with a combined 6- and 12-fold anisotropy in the interaction potential, motivated by the vortex lattice (VL) phase diagram in MgB 2 and UPt 3. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1769 | Structural transition kinetics and activated behavior in the superconducting vortex lattice | Eskildsen, Morten; Louden, Elizabeth; Rastovski, Catherine; Kuhn, Stephen; Leishman, Allan; DeBeer-Schmitt, Lisa; Dewhurst, Charles; Zhigadlo, Nikolai | We show that this commonality extends to phase transition kinetics associated with the superconducting vortex lattice. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1770 | Numerical approach for vortex dynamics in the presence of mesoscopic pining centers | Sadovskyy, Ivan; Lutchyn, Roman | In the present work we propose the efficient and accurate method for vortex dynamics description in low field limit. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1771 | Superconducting Nanostructures Grown by Ga+- and He+- Focused Ion Beam Induced Deposition (FIBID) | C�rdoba, Rosa; Or�s, Pablo; Ibarra, Alfonso; Mailly, Dominique; DE TERESA NOGUERAS, JOSE MARIA | Superconducting Nanostructures Grown by Ga+- and He+- Focused Ion Beam Induced Deposition (FIBID) | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1772 | Suppression of dissipation in superconducting nanostrips by parallel magnetic field | Glatz, Andreas; Wang, Yong-Lei; Aronson, Igor; Xiao, Zhili; Kwok, Wai-Kwong | Here we show that this is no longer true if the magnetic field and the current are applied parallel to each other. | Session 139: Superconducting Critical Current and Vortex Dynamics |
| 1773 | Growth of a predicted two-dimensional topological insulator based on InBi-Si(111)-?7�?7 | Hsu, Chia-Hsiu; Huang, Zhi-Quan; Lin, Cho-Ying; Macam, Gennevieve; Huang, Yu-Zhang; Lin, Deng-Sung; Chiang, Tai-Chang; Lin, Hsin; Chuang, Feng-chuan; Huang, Li | We propose and demonstrate an effective experimental process to successfully form a large well-ordered ?7 surface by depositing Bi atoms on the In-Si(111)-4�1 substrate. | Session 140: Topological Phases and Their Excitations |
| 1774 | Topological Phase Transition from a Quantum Spin Hall Insulator to a Chern Insulator | Han, Zhongdong; Li, Tingxin; Sullivan, Gerard; Du, Rui-Rui | Here we observe a distinct bulk conductance peak emerging around 12T in InAs/GaSb double layer systems. | Session 140: Topological Phases and Their Excitations |
| 1775 | Shift insulators: rotation-protected two-dimensional topological crystalline insulators | Liu, Shang; Vishwanath, Ashvin; Khalaf, Eslam | We study a two-dimensional tight-binding model of a topological crystalline insulator protected by rotation symmetry. | Session 140: Topological Phases and Their Excitations |
| 1776 | Scanning tunneling microscopy and spectroscopy on strong spin-orbit coupling chalcogenides | Das, Shekhar; Sirohi, Anshu; Gupta, Gaurav; Kamboj, Suman; Vasdev, Aastha; Gayen, Sirshendu; Guptasarma, Prasenjit; Das, Tanmoy; Sheet, Goutam | In this talk, I will show, as the TI Bi 2Se 3, Sb 2Se 3 displays generation of highly spin-polarized current by point contact Andreev reflection spectroscopy. | Session 140: Topological Phases and Their Excitations |
| 1777 | A new topological crystalline insulator state in the TaAs2materials class | Wang, Baokai; Ghosh, Barun; Chiu, Wei-Chi; Singh, Bahadur; Su, Chenliang; Agarwal, Amit; Lin, Hsin; Bansil, Arun | On the (010) surface, we show the presence of rotational-symmetry-protected nontrivial Dirac cone states within a local bulk energy gap of 300 meV. | Session 140: Topological Phases and Their Excitations |
| 1778 | Conductance Oscillations in Gated Topological Insulator Heterostructures | Thareja, Eklavya; Vekhter, Ilya; Asmar, Mahmoud | We propose that a transport measurement on a gated double junction sandwich device yields critical information about the topological interface states. | Session 140: Topological Phases and Their Excitations |
| 1779 | Tunable skyrmion-skyrmion interactions on the surface of a three dimensional topological insulator | Tiwari, Kunal; Lavoie, Juliette; Coish, William; Pereg-Barnea, Tami | We study the skyrmion-skyrmion interaction mediated by the hybridization of these orbitals. | Session 140: Topological Phases and Their Excitations |
| 1780 | Strain-driven topological phase transitions and tunable topological states in the Bi2Se3 family. | Aramberri, Hugo; Mu�oz, M. Carmen | Based on ab-initio density functional methods, we predict a universal phase diagram for the Bi 2Se 3 family. | Session 140: Topological Phases and Their Excitations |
| 1781 | Closing the surface bandgap in thin Bi2Se3/graphene heterostructures | Chae, Jimin; Kang, Seoung-Hun; Park, Sang Han; Park, Hanbum; Jeong, Kwangsik; Kim, Tae-hyeon; Hong, Seok-bo; Kim, Keun Su; Kwon, Young-Kyun; Kim, Jwong Won; Cho, Mann-Ho | Here, we studied the gapless top surface Dirac state of strained 3 QL Bi 2Se 3</sub>/graphene heterostructures. | Session 140: Topological Phases and Their Excitations |
| 1782 | Surface states of topological crystalline insulators | Khalaf, Eslam; Liu, Shang; Po, Hoi Chun; Watanabe, Haruki; Vishwanath, Ashvin | We study topological crystalline insulator (TCI) phases hosting anomalous surface states. | Session 140: Topological Phases and Their Excitations |
| 1783 | THz spectroscopy of ultralow carrier density topological insulator thin films | Chaudhuri, Dipanjan; Salehi, Maryam; Mondal, Mintu; Moon, Jisoo; Jain, Deepti; Oh, Seongshik; Armitage, Peter | Here we report the magneto-optical response of regular and bulk insulating (p-type and n-type) Sb 2Te 3 films at THz frequencies using time-domain polarimetry. | Session 140: Topological Phases and Their Excitations |
| 1784 | Strong Pumping of Fragile Topology in Higher-Order Topological Insulators and Semimetals | Wieder, Benjamin; Bernevig, Andrei | We answer this question by demonstrating that 2D �fragile� TIs, which are only topologically nontrivial for small numbers of valence bands, exhibit the same anomalous 0D corner modes as 2D obstructed atomic limits. | Session 140: Topological Phases and Their Excitations |
| 1785 | Boundary networks of helical or chiral edges induced by bulk topology | Wang, Yanqi; Moore, Joel | We introduce an effective edge network theory to characterize the boundary topology of coupled edge states generated from various types of topological insulators. | Session 140: Topological Phases and Their Excitations |
| 1786 | Seebeck effect in 3D topological insulator thin films | Matsushita, Stephane Yu; Huynh, Khuong; Tanigaki, Katsumi | We propose that Seebeck coefficient can become a convenient and powerful tool to evaluate the intrinsic carrier concentration for the topological surface in 3D-TIs even in the absence of magnetic field. | Session 140: Topological Phases and Their Excitations |
| 1787 | Glide-symmetric topological crystalline insulators with inversion symmetry | Kim, Heejae; Shiozaki, Ken; Murakami, Shuichi | In this presentation, we consider what happens to the glide-Z 2 invariant, when the inversion symmetry is added. | Session 140: Topological Phases and Their Excitations |
| 1788 | Physical and Thermal Properties of Iron Meteorites below 300 K | Bonidie, Matthew; Noyes, Christopher; Britt, Daniel; Consolmagno, Guy; Macke, Robert; Schmiedeshoff, George; Opeil, Cyril | Physical and Thermal Properties of Iron Meteorites below 300 K | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1789 | First-principles study for the enhancement of the stability of the precipitates in the Cu alloys | Choi, Eun-Ae; Han, Seung Zeon; Ahn, Jee Hyuk; Semboshi, Satoshi | In this study, we tried to find a way to increase the stability of the precipitates in order to avoid dissolution of them during cold working. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1790 | Metallic Refractory Titanium Nitride: An alternative stable metal with tunable optical properties for high temperature plasmonic applications | Gadalla, Mena; Greenspon, Andrew; Tamagnone, Michele; Capasso, Federico; Hu, Evelyn | Metallic Refractory Titanium Nitride: An alternative stable metal with tunable optical properties for high temperature plasmonic applications | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1791 | First-Principles Molecular Dynamics Simulation of a Liquid Li-Sn as a Plasma-Facing Component | Gonzalez del Rio, Beatriz; de Jong, Emily; Carter, Emily | We present results of first-principles molecular dynamics simulations of liquid Li 30Sn 70 and its interaction with various concentrations of deuterium from the melting point up to 970 K. Static and dynamic properties such as pair distribution functions, diffusion coefficients, and viscosities are evaluated. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1792 | High Strength Al Alloy Thin Films: A Nanoscale Analysis of Microstructure and Interface Segregation | Parajuli, Prakash; Mendoza-Cruz, Ruben; Yacaman, Miguel; Ponce, Arturo | Herein, experimental results on the microstructural features and atomic scale Cu grain boundary segregation of high strength Al alloy 7075 thin films are analyzed in detail using advanced microscopic characterization techniques. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1793 | Modeling dislocation evolution around precipitates in superalloy | Angadi, Parinit; Roy Mahapatra, Debiprosad | In this paper we discuss a new approach to correlate the dynamic mechanical properties of Nickel based superalloys to their precipitate driven mechanism of dislocation evolution. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1794 | Atomistic simulation of dislocation-assisted ?-precipitate nucleation in Mg-Al alloys | Yi, Peng; Falk, Michael | We incorporate our results into continuum model and compare with recent ECAE experiments. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1795 | Stabilizing the Simple Hexagonal Structure — Alloys of Tin | Mehl, Michael; Ronquillo, Mateo; Oses, Corey; Curtarolo, Stefano; Toher, Cormac | To understand this, we performed a series of Density Functional calculations on Hg xSn 1-x and Cd xSn 1-x structures by the virtual crystal approximation (VCA); supercell calculations with ordered placement of the Cd/Hg atom ( e.g., one impurity atom per unit cell); and using high-throughput AFLOW calculations to sample larger supercells with random impurities. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1796 | Phase Transformations in Cu-Zr-X High-Temperature Shape Memory Alloys Studied Using Nanocalorimetry and Materials Simulations | Miao, Yucong; Talapatra, Anjana; Villarreal, Ruben; Kozinsky, Boris; Arr�yave, Raymundo; Vlassak, Joost | We use density functional theory (DFT), molecular dynamics (MD), and high-throughput nanocalorimetry to study the Cu-Zr-X high-temperature shape memory alloy system (X= Ni/Co/Hf). | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1797 | Thermal Characterization of Nickel Titanium Shape Memory Alloys via Frequency Domain Thermoreflectance | Vu, Nicholas; Warzoha, Ronald; Smith, Andrew; Donovan, Brian; Sharar, Darin | Thermal Characterization of Nickel Titanium Shape Memory Alloys via Frequency Domain Thermoreflectance | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1798 | Computational Investigation of the Mechanical Properties of Alloys | Woodcox, Michael; Young, Joshua; Smeu, Manuel | We have used DFT to calculate the mechanical properties of several bulk materials to gain a quantitative understanding of the nature of ductility. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1799 | Glass transition and primary crystallization of Al86Ni6Y4.5Co2La1.5 metallic glass at heating rates spanning over six orders of magnitude | Yang, Bin; Schmelzer, J�rn; Zhao, Bingge; Gao, Yulai; Schick, Christoph | In the analysis a theoretical model is employed which takes into account the effect of decoupling of viscosity and diffusion, i.e., the breakdown of the Stokes-Einstein equation. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1800 | Role of Fe and Co addition in the phase stabilization and magnetic properties of NiMnGa Magnetic Shape Memory Alloys | Porro Azpiazu, Jose Maria; Perez Checa, Anabel; Lazpita, Patricia; Feuchtwanger, Jorge; Chernenko, Volodymyr | We have determined the atomic site occupancies in both the martensite and austenite phases of all the alloys studied, and explored their relation with the changes on the magnetic properties of the alloys. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1801 | Spherical Nanomechanical Characterization of Novel Nanocrystalline Cu Cold Spray Manufactured Materials | Sousa, Bryer; Sundberg, Kristin; Massar, Christopher; Champagne, Jr., Victor; Cote, Danielle | TEM and SEM analysis confirmed the noteworthy grain refinement brought about by cold spray for two copper feed stocks. | Session 141: Mechanical, Structural and Thermal Behavior of Metals |
| 1802 | The Effect of Antisymmetric Spin-Orbit Coupling on the Superconducting Order Parameter in Noncentrosymmetrical Superconducting PbTaSe2 Single Crystal | Ren, Cong | In this talk, we report a pressure-dependent point contact Andreev reflection measurement on high quality single crystals of the noncentrosymmetrical superconductor PbTaSe 2. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1803 | Magnetization and spin current in non-centrosymmetric superconductors with Rashba spin-orbit interaction | Hiroki, Kanta; He, James; Hamamoto, Keita; Nagaosa, Naoto | Here we study the magnetization and spin current produced by the super current in 2D non-centrosymmetric superconductors with RSOI for the whole region of temperature and chemical potential. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1804 | Occurrence of Non-Centrosymmetric Superconductivity by Tuning the Antisymmetric Spin-orbital Coupling in La(PtxSi1-x)2 Thin Films | Ou, Yunbo; Liao, Jian; Ozsoy-Keskinbora, Cigdem; Kraemer, Stephan; Bell, David; Shi, Xiaoyan; Moodera, Jagadeesh | In this work, La(Pt xSi 1-x) 2 thin films have been grown by systematically varying x from 0 to 0.68 by MBE technique. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1805 | Fermi surface instabilities of spin-orbit-coupled metals | Schwemmer, Tilman; di Sante, Domenico; Fink, mario; Wu, Xianxin; Hanke, Werner; Thomale, Ronny | Starting from a picture of itinerant electrons, we study the effect of electronic correlations on the Fermi surface via renormalization group techniques. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1806 | Superconducting pairing transition tuned by structural distortions in strong spin-orbit coupled systems | Lindquist, Austin; Kee, Hae-Young | Here, we study the effects of these structural distortions on pairing instabilities, and present the transitions between spin-singlet and spin-triplet pairings tuned by structural distortions. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1807 | Singlet-Quintet Mixing in Superconductors with j=3/2 Fermions | Yu, Jiabin; Liu, Chao-Xing | Singlet-Quintet Mixing in Superconductors with j=3/2 Fermions | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1808 | Odd-frequency pairing in a superconductor coupled to two parallel nanowires | Triola, Christopher; Black-Schaffer, Annica | We study the behavior of Cooper pair amplitudes that emerge when a two-dimensional superconductor is coupled to two parallel nanowires, focusing on the conditions for realizing odd-frequency pair amplitudes in the absence of spin-orbit coupling or magnetism. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1809 | Odd-frequency spin-triplet superconductivity in two dimensional disordered electron liquid. | Zyuzin, Vladimir; Finkelstein, Alexander | In this work we theoretically study the odd-frequency spin-triplet superconductivity in disordered two dimensional electron liquid. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1810 | Odd frequency Berezinski pairing and cross junction coherence in Josephson effect. | Balatsky, Alexander; Pershoguba, Sergey; Triola, Christopher | We now demonstrate the emergence of odd-frequency pair amplitudes as a cross junction Berezinski coherence in conventional Josephson junctions. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1811 | Study of chiral d-wave superconductor candidate URu2Si2 by using scanning SQUID microscopy | Iguchi, Yusuke; Zhang, Irene; Bauer, Eric; Ronning, Filip; Moler, Kathryn | In order to search for evidence of chiral superconductivity in URu2Si2, we will report a study of the local superconducting and local charge current states of URu2Si2 single crystals using a scanning SQUID microscope. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1812 | Ir d-band derived superconductivity in the lanthanum-iridium system LaIr3 system | Haldolaarachchige, Neel; Schoop, Leslie; Khan, Mojammel Alam; Huang, Wenxuan; Ji, Huiwen; Hettiarachchilage, Kalani; Young, David | Here, we have reported the synthesis and characterization of LaIr3, which displays superconductivity below Tc = 3.3 K. LaIr3 is a superconductor where the bands near the Fermi surface are dominated by Ir 5 d states that are strongly affected by SOC. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1813 | Low-Energy Quasiparticle Excitations in Half-Heusler Superconductors with j = 3/2 Fermions | Ishihara, Kota; Takenaka, Takaaki; Miao, Yijie; Mizukami, Yuta; Pavlosiuk, Orest; Wisniewski, Piotr; Kaczorowski, Dariusz; Shibauchi, Takasada | To study the gap structure in several half-Heusler superconductors, we have measured the magnetic penetration depth on YPtBi, LuPtBi, and LuPdBi with different spin-orbit coupling strength. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1814 | Nonlinear susceptibility of unconventional superconductors | Pelc, Damjan; Anderson, Zachary; Yu, Biqiong; Hameed, Sajna; Greven, Martin | Based on our work on the superconducting precursor in oxides [1,2], we present complementary experiments on a wide range of conventional and unconventional superconductors. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1815 | Suppression of odd-frequency superconducting pairing by phase-disorder in a nanowire coupled to Majorana zero modes | Kuzmanovski, Dushko; Black-Schaffer, Annica; Cayao, Jorge | In the second part, we perform numerical calculations on a tight-binding lattice model and study the effects of phase-disorder averaging on the local density of states and superconducting correlations. | Session 142: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States |
| 1816 | Configuration-sensitive transport at the domain walls of a magnetic topological insulator | Zhou, Yanfeng; Hou, Zhe; Sun, Qing-Feng | We report on the transport of a two-terminal device containing a domain wall (DW) in a magnetic topological insulator (TI). | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1817 | Conditions for fully gapped topological superconductivity in topological insulator nanowires | Ilan, Roni; De Juan, Fernando; Bardarson, Jens | We show that for wires with discrete rotational symmetry, a vortex is necessary to produce a fully gapped topological superconductor with localized Majorana end states. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1818 | Topological Properties of Gapped Graphene Nanoribbons with Spatial Symmetries | Lin, Kuan-Sen; Chou, Mei-Yin | In this work, we prove that a symmetry-protected Z 2 topological classification exists for any type of termination. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1819 | Quasi-one-dimensional first- and second-order topological insulators: Bi4X4 (X = Br, I) | Yoon, Chiho; Liu, Cheng-Cheng; Min, Hongki; Zhang, Fan | We perform first-principles calculations and construct an effective model for Bi 4X 4. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1820 | PbSnSe: a model system to study topological phases | Krizman, Gauthier; Assaf, Badih; Orlita, Milan; Phuphachong, Thanyanan; Bauer, G�nther; Springholz, Gunther; de Vaulchier, Louis-Anne; Guldner, Yves | In this talk, we will present a comprehensive experimental mapping of the 3D band structure of Pb 1-xSn xSe as a function of chemical composition (0<x<0.3), temperature (1.6<T<200 K), and magnetic field (0<B<34 T). | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1821 | Higher-order topology in two-dimensional crystals | Schindler, Frank; Benalcazar, Wladimir; Brzezinska, Marta; Iraola, Mikel; Bouhon, Adrien; Tsirkin, Stepan; Vergniory, Maia; Neupert, Titus | To corroborate our findings, we present tight-binding models and density functional theory calculations for various material realizations. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1822 | Exploring electronic properties of topological insulator Bi2Se3 using nuclear magnetic resonance | Guehne, Robin; Williams, Grant; Chong, Shen; Chlan, Vojt?ch; Haase, Juergen | We will show that nuclear magnetic resonance (NMR) as a local, bulk probe can detect this band inversion through the electric quadrupole interaction that, in addition, measures the concentration of free carriers, e.g. originating from self-doping effects. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1823 | Thermal Hall Effect Measurements on Topological Materials | Pritchard-Cairns, Luke; Reid, Jean Philippe; Perry, Robin; Prabhakaran, Dharmalingam; Huxley, Andrew | In order to demonstrate the feasibility of these measurements, we have used our setup to reproduce those results from [2], which show a (magnon) Hall effect signal of a similar magnitude to that predicted for SCBO, and under similar conditions. We then present new thermal Hall data on the material SCBO, for which a positive result would be evidence for one of the first known bosonic topological insulators. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1824 | Selective Contact and Patterning of Topological Surface States by Interfacing with Trivial and Ferromagnetic Insulators | Anirban, Ankita; Jalil, Abdur; Ou, Yunbo; Rocci, Mirko; Mussler, Gregor; Moodera, Jagadeesh; Barnes, Crispin; Ford, Christopher J | We present results from devices which allow selective contact and patterning of topological surface states. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1825 | The effect of lattice termination on the Zeeman gap of topological edge states in the quantum spin Hall insulator WTe2 | Lau, Alexander; Ray, Rajyavardhan; Varjas, Daniel; Akhmerov, Anton | For this purpose, we have derived a minimal 4-orbital tight-binding model by means of a combination of symmetry considerations, density-funcitonal theory calculations and experimental data. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1826 | Bulk-boundary correspondence of non-Hermitian systems | Wang, Zhong; Yao, Shunyu; Song, Fei | As a natural formulation of the non-Bloch bulk-boundary correspondence, we introduce the non-Bloch topological invariants in the complex Brillouin zone (instead of the standard Brillouin zone with real-valued momentum), which faithfully predict the number of topological edge modes. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1827 | Epitaxial Nanoribbon Transfer Process for Quantum Spin Hall Devices | Yao, Siqi; Liu, Xiaoxue; Han, Zhongdong; Tong, Bingbing; Du, Rui-Rui | We will describe the processing for the QSH devices and present their low temperature transport data. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1828 | Revealing Proximity Effects at Magnetic Topological Insulator / Antiferromaget Interfaces | Grutter, Alexander; He, Qing Lin; Yin, Gen; Pan, Lei; Yang, Chao-Yao; Che, Xiaoyu; Gilbert, Dustin; Disseler, Steven; Kirby, Brian; Borchers, Julie; Ratcliff, William; Shafer, Padraic; Arenholz, Elke; Yu, Luyan; Yu, Guoqiang; Shao, Qiming; Wu, Yingying; Zhang, Bin; Han, Xiaodong; Liu, Yizhou; Lake, Roger; Law, Kam Tuen; Wang, Kang | In this work, we use neutron and magnetic X-ray spectroscopy to assemble an depth and element-resolved picture of magnetism within topological insulator/antiferromagnet heterostructures. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1829 | Observation of propagating Dirac plasmons in topological insulators | Wang, Yong; Law, Stephanie | Here we present our work on exciting propagating Dirac plasmons in TIs by lifting off gold gratings on top of the TI surface. | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1830 | First-Principles Prediction of Room Temperature Quantum Anomalous Hall Effect in 2D Oxalate-Bridged Metal Organic Complexes | Zhang, Lizhi; Yoon, Mina | Here, we propose a new family of high temperature organic QAH insulators of 2D oxalate-bridged metal (M) organic complexes, M 2(C 2O 4) 3 (M=Re, Pt, Hg). | Session 143: Transport in Topological Systems: Theory and Experiment |
| 1831 | Turning light-guiding nanowires into a fluorescence-based biosensing assay | Korosec, Chapin; Verardo, Damiano; Zuckermann, Martin; Forde, Nancy; Linke, Heiner | I will present our results showing that we are able to detect the presence and activity of enzymes free in solution. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1832 | Size dependent surface band bending in GaN nanowires | Parida, Santanu; Madapu, Kishore; Dhara, Sandip | Therefore, the present study intends to investigate the effect of surface states on the band bending of the unintentionally doped n-GaN NW using Kelvin probe force microscopy (KPFM) with high spatial resolution. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1833 | Electronic homogeneity of III-Nitride nanowire Light Emitting Diodes (LEDs) grown on amorphous and nanocrystalline metals | Selcu, Camelia; May, Brelon; Myers, Roberto | By taking IVs on individual nanowires, we found that there is a reduction in the threshold voltage for the GaN nanowire LEDs grown on Pt films compared to those grown on p-Si. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1834 | Crop up of the B1l mode in high quality GaN nanowires due to isotopic disorder | Cantarero, Andres; Rodriguez-Fernandez, Carlos; Almokhtar, Mohammed; Ibarra-Hernandez, Wilfredo; Morais.de Lima Jr., Mauricio; Romero, Aldo; Asahi, Hajime | Crop up of the B1l mode in high quality GaN nanowires due to isotopic disorder | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1835 | Harnessing the magneto-optics of quantum wires for designing the optical amplifiers | Kushwaha, Manvir | This letter aims at a core issue related with the magnetoplasmon excitations in the quantum wires characterized by the confining harmonic potential and subjected to a longitudinal electric field and a perpendicular magnetic field in the symmetric gauge. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1836 | Magneto-Chiral Anisotropy in Carbon Nanotubes | Lotfizadeh, Neda; Senger, Mitchell; McCulley, Daniel; Minot, Ethan; Deshpande, Vikram V. | In this work we use ultra clean suspended carbon nanotubes to investigate electrical magneto-chiral anisotropy in these materials, which can be used as a probe to deduce the electron-electron interaction strength and handedness of the tubes. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1837 | Ultrafast Stimulated Raman Scattering in Carbon Nanotubes | Drapcho, Steven; Yong, Chaw Keong; Saha, Avishek; Doorn, Stephen; Wang, Feng | We perform ultrafast transient absorption spectroscopy on (6,5) carbon nanotubes in aqueous solution, using a near-IR pump and supercontinuum near-IR probe. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1838 | Modification of Second Harmonic Generation Signals From Multiferroic Nanofibers Under Changing Magnetic Field | arash, Saba; Chavez, Bryan; Bauer, Matthew; Andrew, Jennifer; Crawford, Thomas; Wu, Yanwen | In this study, we used the optical second harmonic generation (SHG) technique to monitor changes in the ferroelectricity of the BTO half while modifying the magnetization of the CFO half. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1839 | Intrinsic quality of InSb NWs grown in template pores | Singh, Abhay; Philipose, Usha | Intrinsic quality of InSb NWs grown in template pores | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1840 | Investigating surface migration energy barriers of self-assembly ZnO nanorods by multi-optical methods | Chang, Feng-Ming; Wu, Zong-Zhe; Huang, Jing-Heng; Chen, Wei-Ting; Brahma, Sanjaya; Lo, Kuang Yao | Investigating surface migration energy barriers of self-assembly ZnO nanorods by multi-optical methods | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1841 | Maximizing Photonic Response with Simple Resonating Structures in Various Geometries | Valagiannopoulos, Constantinos; Sheverdin, Arsen; Sarsen, Adilkhan; Abrashuly, Aivar | By rotating in-plane the two slabs, we aim at tilting the linearly polarized incident field by 90 degrees; it is a particularly challenging task when working with such simple configurations. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1842 | Dark vertical conduction of cavity-embedded semiconductor heterostructures | Naudet-Baulieu, Cassia; Bartolo, Nicola; Orso, Giuliano; Ciuti, Cristiano | We present a linear-response theory for the electronic transport along the growth direction of an arbitrary semiconductor heterostructure coupled to a photonic resonator in its vacuum state (no real photons are injected or created). | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1843 | Visible Frequency Zero-Index Metasurfaces for 3D Augmented Reality Displays | Tang, Haoning; Mazur, Eric | To overcome this limitation, we have developed metasurface-based pixel. | Session 144: Nanowires and One-Dimensional Structures: Optical and Electronic Properties |
| 1844 | Debye mechanism of giant microwave absorption in superconductors | Smith, Michael; Andreev, Anton; Spivak, Boris | We present a theory of microwave absorption in conventional superconductors and show that in the presence of a superfluid velocity Vs the microwave absorption coefficient can be orders of magnitude larger than at V s = 0. | Session 145: Superconductivity in EM fields |
| 1845 | A nonlinear THz study of strong light-matter coupling between plasmonic metamaterials and a superconducting Josephson Plasmon in La2-xSrxCuO4. | Schalch, Jacob; CHEN, CHUNXU; Zhao, Xiaoguang; Basov, Dimitri; Fogler, Michael; Zhang, Xin; Averitt, Richard | We enhance this light-matter coupling by applying interchangeable metamaterial tapes to a c-axis single crystal of La 2-xSr xCuO 4 and perform linear THz time domain spectroscopy in reflection in order to identify anti-crossing behavior characteristic of strong coupling. | Session 145: Superconductivity in EM fields |
| 1846 | Cavity Quantum Enhancement of Superconductivity | Curtis, Jonathan; Raines, Zachary; Allocca, Andrew; Hafezi, Mohammad; Galitski, Victor | We aim to understand what happens when the classical electromagnetic field is replaced by a fluctuating quantum electromagnetic field, as may be found in a microwave cavity resonator. | Session 145: Superconductivity in EM fields |
| 1847 | Modulating Superconductivity with Metamaterial Plasmonic Structures � Theory | Dodge, Tyler; Wu, Xueyuan; Schiller, Mark; Naughton, Michael; Kempa, Krzysztof | In this work, we have studied theoretically, two-dimensional Babinet metamaterials made of Pb, properly designed to have the Cooper pairing strength systematically controlled (enhanced or suppressed). | Session 145: Superconductivity in EM fields |
| 1848 | Modulating Superconductivity with Metamaterial Plasmonic Structures � Experiment. | Schiller, Mark; Dodge, Tyler; Wu, Xueyuan; Kempa, Krzysztof; Naughton, Michael | We report fabrication and experimental measurements of thin film Babinet metamaterials made of Pb, designed to have the Cooper pairing strength systematically controlled (enhanced or suppressed). | Session 145: Superconductivity in EM fields |
| 1849 | Strong Plasmonic Enhancement of Photoelectric Quantum Efficiency of Nb using In Nano islands | Asalzadeh, Shokoufeh; Zasadzinski, John; Warren, Mark; Spentzouris, Linda; Samuelson, Noah | Strong Plasmonic Enhancement of Photoelectric Quantum Efficiency of Nb using In Nano islands | Session 145: Superconductivity in EM fields |
| 1850 | Theory of coherent plasmon in one dimensional insulators | Sau, Jay | Here we develop a qualitative understanding of such coherent charge modes by studying the local dynamical charge susceptibility of the insulating phase of the Sine-Gordon model. | Session 145: Superconductivity in EM fields |
| 1851 | Application of metamaterial nano-engineering for increasing the superconducting critical temperature | Osofsky, Michael; Smolyaninova, Vera; Prestigiacomo, Joseph; Rosen, Peter; Dickson, Matthew; Woodfield, Brian; Lynn, Jeffrey; Butch, Nicholas; Chen-Mayer, Heather; Smolyaninov, Igor | In this talk, we present specific heat data on samples of the composite Al 2O 3-coated aluminium nanoparticles showing that the normal state density of states (DOS) is similar to that of pure aluminum, thus precluding the DOS from being responsible for the observed enahanced T c. | Session 145: Superconductivity in EM fields |
| 1852 | Observation of plasmon-phonons in a metamaterial superconductor using inelastic neutron scattering | Smolyaninova, Vera; Lynn, Jeffrey; Butch, Nicholas; Chen-Mayer, Heather; Prestigiacomo, Joseph; Osofsky, Michael; Smolyaninov, Igor | We report the first observation of a hybrid plasmon-phonon excitation in Al-Al2O3 ENZ core-shell metamaterials using inelastic neutron scattering. | Session 145: Superconductivity in EM fields |
| 1853 | Interference experiments with superconducting microwave beam splitter | Zotova, Iuliia; Zhou, Yu; Wang, Rui; Astafiev, Oleg; Tsai, Jaw-Shen | Interference experiments with superconducting microwave beam splitter | Session 145: Superconductivity in EM fields |
| 1854 | Transient optical response of correlated electrons | Kumar, Ankit; Kemper, Alexander | In our work, we calculate transient optical conductivity using a non-equilibrium Green�s function method. | Session 145: Superconductivity in EM fields |
| 1855 | Manifestation of vibronic dynamics in infrared spectra of Mott insulating fullerides | Iwahara, Naoya; Matsuda, Yuki; Tanigaki, Katsumi; Chibotaru, Liviu | In this work, the first-principles theory of the infrared spectra of dynamical Jahn-Teller system is developed and applied to the Mott-insulating Cs 3C 60 [3]. | Session 145: Superconductivity in EM fields |
| 1856 | Low loss amorphous Ta2O5 coatings grown by reactive sputtering for dielectric mirrors used for gravitational wave detection | Shukla, Keerti; Molina-Ruiz, Manel; Abernathy, Matt; Ananyeva, Alena; Bassiri, Riccardo; Fejer, Martin; Gustafson, Eric; Liu, Xiao; Markosyan, Ashot; Metcalf, Thomas; Vajente, Gabriele; Hellman, Frances | Low loss amorphous Ta2O5 coatings grown by reactive sputtering for dielectric mirrors used for gravitational wave detection | Session 146: Oxides Films, Coatings, and Related Applications |
| 1857 | Understanding the role of carbon in active trap centre formation in porous alumina for ion beam dosimetry | BHOWMICK, SANGITA; pal, saptarshi; DAS, DIP; Singh, Vipin; khan, saif; huebner, rene; roybarman, sudipto; Kanjilal, dinakar; Kanjilal, Aloke | A facile approach to improve thermoluminescence sensitivity of electrochemically anodized porous Al 2O 3 (AAO) is presented by introducing carbon ions for ion beam dosimetry. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1858 | Interface-engineered hole doping in Sr2IrO4/LaNiO3 heterostructure | Wen, Fangdi; Liu, Xiaoran; Zhang, Qinghua; Kareev, Mikhail; Pal, Banabir; Cao, Yanwei; Freeland, John; N’Diaye, Alpha; Shafer, Padraic; Arenholz, Elke; Gu, Lin; Chakhalian, Jak | X-ray absorption studies at Ni L2 edge confirmed that 5d electrons from Ir sites are transferred onto Ni sites leading to the formation of a high spin Ni2+ state. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1859 | Over 100-THz Bandwidth Selective-Difference-Frequency Generation at LaAlO3/SrTiO3 Nanojunctions | Chen, Lu; Sutton, Erin; Lee, Hyungwoo; Lee, Jungwoo; Li, Jianan; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | Here, we report selective difference frequency generation with over 100 THz bandwidth through femtosecond optical pulse shaping. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1860 | Morphological anisotropy and mosaicity in epitaxially grown VO2 films | Shabalin, Anatoly; Anouchi, Elihu; Holt, Martin; Sharoni, Amos; Shpyrko, Oleg | Our work focuses on the structural and morphological origins of such variations. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1861 | Preparation and X-Ray Diffraction Study of Strongly Oriented Thin Films with Potential Magnetoelectric Effect | Kuzel, Radomir; Bursik, Josef; Uhrecky, Robert; Soroka, Miroslav; Prokleska, Jan | Preparation and X-Ray Diffraction Study of Strongly Oriented Thin Films with Potential Magnetoelectric Effect | Session 146: Oxides Films, Coatings, and Related Applications |
| 1862 | Magnetic Scattering studies of rare earth thin film spiral antiferromagnetics | Hrkac, Stjepan; Medapalli, Rajasekhar; Sprau, Peter; Fullerton, Eric; Shpyrko, Oleg | In our study using X-ray magnetic resonant scattering we successfully detected the formation of antiferromagnetic spiral domains in thin film Ho by measuring magnetic satellite peaks around out-of-plane Ho Bragg peaks. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1863 | SrTiO3 surfaces prepared by HCl etching | Bean, Camille; Furtado, Miro; Hoffman, Jason; Webb, Tatiana; Matt, Christian; Hoffman, Jennifer | Here we characterize halogen doping from use of an alternative etchant, hydrochloric acid. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1864 | High Temperature Oxidation of Amorphous Zr-B-C-N Thin Films Grown by Electron Beam Evaporation | Greenslit, Morton; Benninghoff, Morgen; Lad, Robert | In this study, 200 nm thick ZrBCN films with a range of stoichiometries were grown on r-sapphire substrates at 850 oC using e-beam evaporation of ZrC and B sources in a nitrogen plasma. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1865 | Reduction of Stress in Dual Ion Beam Sputtered Ta2O5 and SiO2 Optical Interference Coatings | Randel, Emmett; Davenport, Aaron; Menoni, Carmen | We studied the mechanical and optical properties of tantalum pentoxide (Ta 2O 5) and silicon dioxide (SiO 2) films prepared by dual ion beam sputtering with the goal to realize thin films with a stress below 0.3 GPa. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1866 | Properties of CCTO, a High Dielectric Constant Material | Kumar, Parveen; Agrawal, D. C. | We used a simple Sol-Gel technique and established a novel composition of CCTO with high dielectric constant, and fabricated stable and reliable thin films. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1867 | Influence of Assist Ion Bombardment on Mechanical Loss of Amorphous Tantala Thin Films for Gravitational Wave Interferometers | Yang, Le; Randel, Emmett; Vajente, Gabriele; Ananyeva, Alena; Gustafson, Eric; Markosyan, Ashot; Fejer, Martin; Menoni, Carmen | In this work, amorphous tantala thin films have been deposited by reactive ion beam sputtering with assist Ar + and Xe + ion bombardment to investigate the effect of ion-induced surface diffusion on coating’s mechanical and structural properties. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1868 | TiO2 doped Ta2O5 coatings grown by biased target ion beam deposition for gravitational wave detectors | Fazio, Mariana; Vajente, Gabriele; Ananyeva, Alena; Gustafson, Eric; L�vesque, Carl; Schiettekatte, Fran�ois; Markosyan, Ashot; Bassiri, Riccardo; Fejer, Martin; Menoni, Carmen | In this work we studied thin films of Ta 2O 5 doped with different TiO 2 concentrations grown by biased target ion beam deposition to evaluate the effect of doping in the mechanical loss and to search for high index materials with improved performance for the upcoming upgrade of LIGO and future detectors. | Session 146: Oxides Films, Coatings, and Related Applications |
| 1869 | Discovery of chiral-spin order in purported Kitaev spin-liquids | Varma, Chandra; Modic, Kimberly; Ramshaw, Brad; Shekhter, Arkady | We examine recent magnetic torque measurements in two compounds, $\gamma$-Li$_2$IrO$_3$ and RuCl$_3$, which have been discussed as possible realizations of the Kitaev model. | Session 147: Spin Liquids and Ices |
| 1870 | Characteristics of the intermediate-field ordered phase of alpha- RuCl3 revealed by magnetic diffraction | Banerjee, Arnab; Balz, Christian; Lampen-Kelley, Paige; Yan, Jiaqiang; Mandrus, David; Liu, Yaohua; Nagler, Stephen | Here we use time-of-flight neutron diffraction to elucidate the nature of intermediate phase and its magnetic order. | Session 147: Spin Liquids and Ices |
| 1871 | Magnon thermal Hall effect in the candidate Kitaev spin-liquid ?-RuCl3 | Cookmeyer, Jonathan; Moore, Joel | Motivated by recent experiments measuring the thermal Hall conductivity of ?-RuCl 3 and using spin-wave theory and model effective Hamiltonians from the literature, the magnon Thermal Hall coefficient in the magnetically ordered phase is computed. | Session 147: Spin Liquids and Ices |
| 1872 | Effective dimension, level statistics, and integrability of Sachdev-Ye-Kitaev-like models | Iyoda, Eiki; Katsura, Hosho; Sagawa, Takahiro | Here, we introduce a variant of the SYK model, which we refer to as the Wishart SYK model [1]. | Session 147: Spin Liquids and Ices |
| 1873 | A candidate Theory for the “Strange Metal” phase based on the Sachdev-Ye-Kitaev physics | Wu, Xiaochuan; Chen, Xiao; Jian, Chao-Ming; You, Yizhuang; Xu, Cenke | We propose a lattice model for strongly interacting electrons with the potential to explain the main phenomenology of the strange metal phase in the cuprate high-temperature superconductors. | Session 147: Spin Liquids and Ices |
| 1874 | Charge transport in graphene-based mesoscopic realizations of Sachdev-Ye-Kitaev models | Can, Oguzhan; Nica, Emilian; Franz, Marcel | Starting with a recent proposal for simulating the SYK model in a graphene flake in an external magnetic field and extending it by considering leads attached to it, we model a realistic transport experiment and calculate directly measurable quantities featuring non-Fermi liquid signatures of the SYK physics. | Session 147: Spin Liquids and Ices |
| 1875 | Characterization of quantum many-body chaos with quantum Lyapunov exponents and by two-point correlations: application to a generalized Sachdev-Ye-Kitaev model | Gharibyan, Hrant; Hanada, Masanori; Swingle, Brian; Tezuka, Masaki | We propose two quantities for characterization of quantum many-body chaos. | Session 147: Spin Liquids and Ices |
| 1876 | Chiral spin liquid phase of the triangular lattice Hubbard model | Szasz, Aaron; Motruk, Johannes; Zaletel, Michael; Moore, Joel | Motivated by experimental studies that have found signatures of a quantum spin liquid phase in organic crystals whose structure is well described by the two-dimensional triangular lattice, we study the Hubbard model on this lattice at half filling using the infinite-system density matrix renormalization group (iDMRG) method. | Session 147: Spin Liquids and Ices |
| 1877 | Monopoles in Dirac spin liquids I: from spinon band topology to monopole quantum numbers | Song, Xueyang; Wang, Chong; He, Yin-Chen; Vishwanath, Ashvin | We explore a low-energy theory for 2D quantum magnets, the Dirac spin liquid (DSL), a version of Quantum Electrodynamics ( QED$_3$) with four flavors of Dirac fermions coupled to photons. | Session 147: Spin Liquids and Ices |
| 1878 | Monopoles in Dirac spin liquids II: towards a unifying description of 2D quantum magnetism | Wang, Chong; Song, Xueyang; He, Yin-Chen; Vishwanath, Ashvin | We characterize universal signatures of the Dirac spin liquid state, including those that result from monopole excitations, which serve as a guide to numerics and to experiments on existing materials. | Session 147: Spin Liquids and Ices |
| 1879 | Interplay of uniform U (1) quantum spin liquid and magnetic phases in rare earth pyrochlore magnets: a fermionic parton approach | Sanyal, Sambuddha; Dhochak, Kusum; Bhattacharjee, Subhro | We study the uniform time reversal invariant quantum spin liquid (QSL) with low energy fermionic quasi-particles for rare earth pyrochlore magnets and explore its magnetic instability employing an augmented fermionic parton mean field theory approach. | Session 147: Spin Liquids and Ices |
| 1880 | Microscopic model for Tb-based pyrochlore magnets | Jin, Wen; Wong, Daniel; Gingras, Michel J | In this talk, I will discuss our efforts to derive a pseudo spin-1/2 model of Tb-based pyrochlores via a projection operator approach. | Session 147: Spin Liquids and Ices |
| 1881 | Magnetic critical dynamics and monopole clustering of pyrochlore spin ice | Zhang, Puhan; Luo, Jing; Chern, Gia-Wei | Here we present extensive numerical simulations to investigate the structural as well as dynamical properties of monopoles in the vicinity of the field-induced first-order transition. | Session 147: Spin Liquids and Ices |
| 1882 | Quantum Anomalous Hall Phase Stabilized via Realistic Interactions on a Kagome Lattice | Ren, Yafei; Zeng, Tiansheng; Zhu, Wei; Sheng, Donna | In this work, we report an experimentally feasible scheme of realizing spontaneous quantum anomalous Hall effect (QAHE) driven by spatially decaying interactions between spinless Fermions on a topologically trivial kagome lattice with a quadratic band touching Fermi point. | Session 147: Spin Liquids and Ices |
| 1883 | Probing The Spin-Spin Correlator Of Kagome Lattice Heisenberg Antiferromagnets Through Non-linear Optical Harmonic Generation | Laurita, Nicholas; Ron, Alon; Han, Jeong Woo; Lee, Jongseok; Sheckelton, John; Smaha, Rebecca; He, Wei; Wen, Jiajia; Lee, Young; Norman, Michael; Hsieh, David | We find the temperature evolution of the spin correlations of these materials to be in very good agreement with the theoretical prediction for the S = 1/2 Heisenberg Kagome antiferromagnet. | Session 147: Spin Liquids and Ices |
| 1884 | A Multi-Element Microcalorimeter X-ray Detector that processes Pulses in Real Time | Jach, Terrence; Thurgate, Stephen; Cantor, Robin; Ullom, Joel | We describe a microcalorimeter x-ray detector that operates up to 8 detector elements with full digital processing in real time. | Session 148: Novel Techniques |
| 1885 | Galeras Volcano internal structure characterization using geological and geophysics techniques as input to muon tomography studies | Torres, Denis; Martinez, David; Torres, Roberto; Tapia, Alex; Betancourt, Jaime; Rodriguez, Jairo; Due�as, David; Arturo, Danilo | In this work, densities in the GV Complex and its variations were analyzed using geological studies and different geophysical methods, such as the seismic tomography of the P wave velocities and gravimetry. | Session 148: Novel Techniques |
| 1886 | Studies in Baseplate-Pixel Sensor Gluing of the Pixel Strip Modules for the Compact Muon Solenoid Experiment Phase-2 Upgrade | Guhit, Jem; Keaveney, James; Missiroli, Marino | This study focuses on the Pixel-Sensor (PS) Module which will be installed in the end cap region of the Compact Muon Solenoid (CMS) detector. | Session 148: Novel Techniques |
| 1887 | Photoelectric Effect And Mass-Energy Energy Equations Must Include Rotational And Vibrational Kinetic Energy Factors As Well As Linear Kinetic Factors. Also Mass-Energy Equation Must Also Include Potential Energy Factors. | Brekke, Stewart | Photoelectric Effect And Mass-Energy Energy Equations Must Include Rotational And Vibrational Kinetic Energy Factors As Well As Linear Kinetic Factors. Also Mass-Energy Equation Must Also Include Potential Energy Factors. | Session 148: Novel Techniques |
| 1888 | Ultralow-power nonlinear optics using optical nanofibers in metastable xenon atoms | Lamsal, Hari; Franson, James; Pittman, Todd | In this talk, I will describe how we develop our experimental �ONF in Xe*� platform, with ONF’s having long life, and no degradation of transmission through them. | Session 148: Novel Techniques |
| 1889 | Fast Hall�: A method for high speed AC field, AC current Hall measurements. | Lindemuth, Jeffrey | Fast Hall�: A method for high speed AC field, AC current Hall measurements. | Session 148: Novel Techniques |
| 1890 | Morphology of copper using lateral electrodeposition suitable for low-temperature soldering of microelectronic devices | Rosa, Sabrina; Takshi, Arash | The morphology of copper deposits based on the interaction with hydrogen was exanimated using Scanning Electron Microscopy (SEM) technique. | Session 148: Novel Techniques |
| 1891 | Effect of Evaporation Boundary Condition on The Consolidation and Crack Propagation in Drying Colloidal Films | Gao, Han; Zhou, Jiajia; Doi, Masao; Xu, Ye | We investigate the dynamics of consolidation front growth and the subsequent crack propagation during the directional drying of colloidal film. | Session 148: Novel Techniques |
| 1892 | Towards the Kitaev model with quantum dot chains in semiconductor nanowires | Wu, Hao; Zhang, Po; Chen, Jun; Gazibegovic, Sasa; Op het Veld, Roy; Badawy, Ghada; Bakkers, Erik; Frolov, Sergey | We experimentally explore whether chains of quantum dots in semiconductor nanowires can be used to emulate important one-dimensional Hamiltonians such as Kitaev model that describes a topological p-wave superconductor. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1893 | Analytical Noise Spectra Calculations for High-Temperature Superconducting Nanowires | Ostrove, Corey; Reichl, Linda | In this talk we present analytical results for the noise spectrum of a superconducting heterostructure formed by a high temperature superconductor (HTS) nanowire. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1894 | Competition between the Yu-Shiba-Rusinov and Kondo screening in double quantum dot based Cooper pair splitters | Weymann, Ireneusz; Wrzesniewski, Kacper | Competition between the Yu-Shiba-Rusinov and Kondo screening in double quantum dot based Cooper pair splitters | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1895 | Andreev Blockade in a Double Quantum Dot with a Superconducting Lead | Pekker, David; Frolov, Sergey | We identify transport characteristics unique to Andreev blockade. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1896 | Transport in superconductor/ferromagnet multilayers with N�el-type domain walls | Palermo, Xavier; Sander, Anke; D’Ambrosio, Sophie; Mesoraca, Salvatore; Bouzehouane, K; Collin, Sophie; Reyren, Nicolas; Cros, Vincent; Villegas, Javier | We experimentally investigate the coupling between magnetization reversal and magneto-transport in the metallic superconductor/ferromagnet multilayers. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1897 | Anisotropic purity of entangled photons from Cooper pairs in heterostructures | Kee, Hae-Young; Gordon, Jacob | Here we study the effect of triplet pairing on the purity of photons produced through Cooper pair recombination. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1898 | Subgap states and Dynes parameter in hard-gap tunnel junctions | Scheller, Christian; Palma, Mario; Casparis, Lucas; Patlatiuk, Taras; Chirolli, Luca; Feshchenko, Anna; Maradan, Dario; Meschke, Matthias; Pekola, Jukka; Zumbuhl, Dominik | Here, we examine hard gap NIS tunnel junctions in a well filtered and shielded environment where PAT is negligible. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1899 | Induced superconducting gap vs. barrier thickness in hybrid Al/Al0.15In0.85As/InAs heterostructures | Fallahi, Saeed; Kallaher, Ray; Gronin, Sergei; Thomas, Candice; Wang, Tian; Gardner, Geoffrey; Winkler, Georg; Gukelberger, Jan; Gamble, John; Antipov, Andrey; Lutchyn, Roman; Fornieri, Antonio; Whiticar, Alexander; Drachmann, Asbjorn; O’Farrell, Eoin; Nichele, Fabrizio; Marcus, Charles; Manfra, Michael | We present a systematic study of the strength of the induced gap in hybrid Al/Al 0.15In 0.85As/InAs superconductor/semiconductor heterostructures as a function of barrier thickness. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1900 | Interaction of Skyrmions and Pearl Vortices in Superconductor-Chiral Ferromagnet Heterostructures | Dahir, Samme; Volkov, Anatoly; Eremin, Ilya | We investigate a hybrid heterostructure with magnetic skyrmions (Sk) inside a chiral ferromagnet interfaced by a thin superconducting lm via an insulating barrier. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1901 | Tunneling Anomalous Hall Effect (TAHE) in Ferromagnet/Superconductor Junctions | Costa, Andreas; Matos Abiague, Alex; Fabian, Jaroslav | Our theoretical work focuses on ferromagnet/superconductor junctions, demonstrating the existence of a superconducting TAHE effect. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1902 | Optimizing spin-triplet supercurrent though a ferromagnetic Josephson junction | Aguilar, Victor; Glick, Joseph; Loloee, Reza; Pratt, William; Birge, Norman | Both spin-singlet and spin-triplet supercurrents are being studied by our group for this purpose. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1903 | Geometry and pairing-symmetry effects in superconductor/half-metallic ferromagnet vertical junctions | Mesoraca, Salvatore; D’Ambrosio, Sophie; Palermo, Xavier; S�nchez-Manzano, David; Cuellar, Fabian; Collin, Sophie; Sander, Anke; Santamaria, Jacobo; Villegas, Javier | In this context, we study vertical S/F/S junctions made of a half-metallic F (La 0.7Sr 0.3MnO 3 or La 0.7Ca 0.3MnO 3) with either a d-wave S (YBa 2Cu 3O 7) or a s-wave one (Mo 80Si 20), aiming to understand to role of the pairing symmetry on the proximity effect and, particularly, on the generation of equal-spin triplet correlations. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1904 | Transport in ferromagnetic/superconducting heterostructures | Moen, Evan; Valls, Oriol | We consider the transport theory in nano-scale ferromagnetic/superconducting heterostructures with multiple ferromagnetic layers. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1905 | Thermoelectric effects in superconductor-ferromagnetic hybrids | Blagg, Kirsten; Parrott, Zachary; Lilly, Michael; Singh, Meenakshi | Thermoelectric effects in superconductor-ferromagnetic hybrids | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1906 | High-critical-field superconducting heterostructures using anodic oxidation | Drachmann, Asbj�rn; Suominen, Henri; Hamilton, Alex; Gronin, Sergei; Wang, Tian; Gardner, Geoffrey; Thomas, Candice; Whiticar, Alexander; Fornieri, Antonio; Manfra, Michael; Marcus, Charles; Nichele, Fabrizio | [2] Instead of etching the aluminum, here we show that controllably oxidizing the Al through anodic oxidation (AO) gives up to a factor 2 increase in InAs mobility and Quantum Hall effect emerges before 3 Tesla. | Session 149: Superconducting Heterostructures and Quantum Dots |
| 1907 | Neutral Fermi surfaces in Mixed Valent Kondo Insulators: Majorana Hubbard Operators | Coleman, Piers | In this talk I will describe how this can be achieved and using the method, discuss the prospects for a two-phase description of SmB 6, in terms of a competition between a fully gapped strong topological insulator and a strange dielectric. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1908 | The role of f-p hybridization in the bulk f-electronic structure of SmB6 | Denlinger, Jonathan; Kim, Dae-Jeong; Fisk, Zachary | Here we explore the role of f-p hybridization in assisting f-d hybridization in the formation of an insulating gap in its f-electronic structure. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1909 | Effect of reduced sample dimensions on the insulating state of SmB6 | Park, Joonbum; Chan, Mun; Rosa, Priscila; Harrison, Neil | Here, we present the electrical transport measurements of the insulating state of SmB 6 down to T ~ 250 mK. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1910 | Search for charge neutral majorana fermions in SmB6 under uniaxial strain | Casas, Brian; Chen, Laisi; Fisk, Zachary; Xia, Jing | Here we report our progress on thermal transport on SmB 6 under uniaxial strain | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1911 | Ionic liquid gating on Al-flux grown SmB6 using Hall bar geometry | Rakoski, Alexa; Mihaliov, Dmitri; Kurdak, Cagliyan; Rosa, Priscila; Fisk, Zachary | We investigate how this plateau, as well as the corresponding plateau in the Hall coefficient, can be tuned by gating with the ionic liquid DEME-TFSI. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1912 | Itinerate states in rare-earth hexaborides observed via resonant inelastic x-ray scattering | Sheets, Donal; Zhu, Jian-Xin; Dzero, Maxim; Casa, Diego; Kim, Jungho; Rosa, Priscila; Fisk, Zachary; Jarrige, Ignace; Hancock, Jason | We present X-ray resonant inelastic x-ray scattering (RIXS) data collected at the L edges of divalent hexaborides YbB 6 and EuB 6. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1913 | Charge neutral fermions and quantum oscillations in a topological Kondo insulator YbB12 | Sato, Yuki; Xiang, Ziji; Kasahara, Yuichi; Taniguchi, Tomoya; Kasahara, Shigeru; Chen, Lu; Asaba, Tomoya; Tinsman, Colin; Murayama, Hinako; Tanaka, Ohei; Mizukami, Yuta; Shibauchi, Takasada; Iga, Fumitoshi; Singleton, John; Li, Lu; Matsuda, Yuji | In this talk, I will present low-temperature heat-transport measurements to discuss low energy excitations in the ground state of YbB 12. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1914 | Enhanced quantum oscillations in Kondo Insulators | Lu, Yen-Wen; Chung, Chung-Hou; Mou, Chung-Yu | We investigate quantum oscillations resulting from the Kondo screening due to Landau levels in Kondo insulators. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1915 | Anomalous symmetry-breaking response in proposed type-II Weyl semimetal | Hodovanets, Halyna; Eckberg, Chris; Campbell, Daniel; Kraft, Daniel; Winters, Sean; Kim, Hyunsoo; Paglione, Johnpierre | We present details of flux growth and physical properties of noncentrosymmetric magnetic RAlGe (where R = Rare Earth) single crystals. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1916 | Many-body dynamics and Kondo coherence collapse in an ultrafast driven Kondo insulator | Zhu, Wei; Chacon, Alexis; Zhu, Jian-Xin | Here, we introduce an ultrafast laser to optically pump and probe a Kondo lattice, in which conducting electrons strongly couple with magnetically local moments. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1917 | Exploring the valence transition in CeOs4Sb12 in high magnetic fields | Goetze, Kathrin; Pearce, Matthew; Goddard, Paul; McCollam, Alix; Khouri, Thomas; Jaime, Marcelo; Maple, M Brian; Sasmal, Kalyan; Yanagisawa, Tatsuya; Singleton, John; Ho, Pei-Chun | We present measurements of resistivity, magnetostriction, and PDO conductivity on the skutterudite CeOs 4Sb 12 in static and pulsed magnetic fields up to 30/60 T, respectively. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1918 | Transport and magnetic properties of correlated Ce3Bi4Pd3 at high magnetic fields | Kushwaha, Satya; Chan, Mun Keat; Rosa, Priscila; Bauer, Eric; Thompson, Joe; Zhu, Jian-Xin; Cao, Chao; Ronning, Filip; Harrison, Neil | 2 Here we present transport and mag- netization measurements in Ce 3Bi 4Pd 3 under pulsed magnetic fields to 60 Tesla, the results are significantly different from Ce 3Bi 4Pt 3. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1919 | Bulk topological Fermi arcs in heavy fermion systems | Nagai, Yuki; Qi, Yang; Isobe, Hiroki; Kozii, Vladyslav; Fu, Liang | By introducing a topological theory of finite-lifetime quasiparticles, we can find that the low-energy dispersion of the Dirac material is reshaped and a topologically protected bulk Fermi arc appears[1,2]. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1920 | Exploration of large anomalous Hall effect and topological Berry curvature in strongly correlated d- and f-electron magnets | Bauer, Eric; Asaba, T.; Sung, Nakheon; Piva, M.; Curtis, M.; Thomas, Sean; Rosa, Priscila; Thompson, Joe; Ronning, Filip | In this talk, I discuss our recent work on the exploration of the anomalous Hall effect and topological Berry curvature in a variety of strongly correlated d- and f-electron magnets. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1921 | Possible observation of topological surface states in a d-electron Kondo Insulator with angle-resolved photoemission spectroscopy | Xu, Kejun; He, Yu; Chen, Sudi; Hashimoto, Makoto; Lu, Donghui; Mo, Sung-Kwan; Shen, Zhixun | We use angle-resolved photoemission to probe the low energy bands of a d-electron Kondo Insulator exhibiting many similar properties as the prototypical f-electron topological kondo insulator candidate SmB6. | Session 150: Topological Electronic States in Kondo insulators and other f-electron materials |
| 1922 | Anomalous critical exponents in itinerant ferromagnets Ni1-xRhx (x = 0.3 – 0.375) close to a quantum phase transition | Huang, Chien-Lung; Spiess, Bianca; Kuntz, Sebastian; Grube, Kai; Hallas, Alannah; Bayliff, Kyle; Besara, Tiglet; Siegrist, Theo; Cai, Yipeng; Beare, James; Luke, Graeme; Morosan, Emilia | We studied the critical behavior of itinerant ferromagnets Ni 1-xRh x with x = 0.3 – 0.375 based on the Arrott-Noakes scaling analysis. | Session 151: Quantum Phase Transitions and Critical Points |
| 1923 | Search for a magnetic quantum critical point in LuFe2Ge2 substitution series | Ribeiro, Raquel; Budko, Sergey; Canfield, Paul | To address this, a study of Y, Sc, Co and Ru substitutions into LuFe 2Ge 2 was made [3]. Although phase diagrams constructed down to 2-3 K failed to reveal emergent effects [3], in this talk we will present magnetization and specific heat data down to 400 mK and 100 mK respectively. | Session 151: Quantum Phase Transitions and Critical Points |
| 1924 | Hall Coefficient of Pure Chromium at Finite Temperatures and High Pressures | Armstrong, Stephen; Wang, Yishu; Silevitch, Daniel; Feng, Yejun; Rosenbaum, Thomas | Here, we examine the pressure-driven Hall coefficient in pure chromium at finite temperature in search of signatures of a pseudogap phase in the absence of disorder. | Session 151: Quantum Phase Transitions and Critical Points |
| 1925 | Ferromagnetic quantum phase transition in compressed CePd2P2 | Elmslie, Timothy; VanGennep, Derrick; Lai, You; Graf, David; Baumbach, Ryan; Hamlin, James | In this present work, we examine the T-H-p phase diagram of single crystalline CePd 2P 2 to 25 GPa using a combination of resistivity, magnetic susceptibility, and x-ray diffraction measurements. | Session 151: Quantum Phase Transitions and Critical Points |
| 1926 | Observation of Griffiths phase at an anti-ferromagnetic quantum critical point in Ce(Cu1?xCox)2Ge2 | Tripathi, Rajesh; Das, Debarchan; Geibel, Christoph; Dhar, Sudesh; Hossain, Zakir | Our results on Ce(Cu 1- xCo x) 2Ge 2 manifest a complex magnetic phase diagram, where we have observed a continuous decrease of T N with large negative slope down to T N = 0.83 K at x = 0.1, and then a comparatively small negative slope takes over. | Session 151: Quantum Phase Transitions and Critical Points |
| 1927 | Pressure-induced quantum critical behavior and magnetic order in YbNi3Ga9 with a chiral crystal structure: AC-calorimetric measurements up to 12 GPa | Umeo, Kazunori; Otaki, Takumi; Arai, Yudai; Ohara, Shigeo; Takabatake, Toshiro | In this work, we have investigated the magnetic order in YbNi 3Ga 9 using AC-calorimetric measurements under P up to 12 GPa. | Session 151: Quantum Phase Transitions and Critical Points |
| 1928 | Tuning a quantum phase boundary with microwaves | Libersky, Matthew; Rosenbaum, Thomas; Silevitch, Daniel | We employ a high-Q loop-gap resonator tuned to approximately 3 GHz to drive the nuclear spins and simultaneously perform dc magnetometry to probe the bulk magnetization. | Session 151: Quantum Phase Transitions and Critical Points |
| 1929 | Electrical transport near an Ising nematic quantum critical point | Wang, Xiaoyu; Berg, Erez | We present a memory matrix calculation of the DC resistivity, which treats the quasiparticle density at each patch on the Fermi surface as a slow variable. | Session 151: Quantum Phase Transitions and Critical Points |
| 1930 | Phonon Quantum Phase Transition | Pablo Pedro, Ricardo; Andrejevic, Nina; Tsurimaki, Yoichiro; Ding, Zhiwei; Lu, Te-Huan; Mahan, Gerald; Huang, Shengxi; Li, Mingda | Here, we demonstrate that a phonon (bosonic) system can exhibit a quantum phase transition with dislocations. | Session 151: Quantum Phase Transitions and Critical Points |
| 1931 | Quantum Critical Polar Metals | Volkov, Pavel; Coleman, Piers; Chandra, Premala | Motivated by these considerations, we develop an analytic model for a Fermi sea of conduction electrons coupled to a critical ferroelectric mode, where screening is taken into account. | Session 151: Quantum Phase Transitions and Critical Points |
| 1932 | Lattice effects on the transport properties of a quasi-two-dimensional metal near a nematic quantum critical point | De Carvalho, Vanuildo; Fernandes, Rafael | In this talk, we investigate the impact of the lattice degrees of freedom on the transport properties near a metallic nematic quantum critical point in quasi-two-dimensional systems. | Session 151: Quantum Phase Transitions and Critical Points |
| 1933 | Dynamic multiferroicity of a ferroelectric quantum critical point | Dunnett, Kirsty; Zhu, Jian-Xin; Spaldin, Nicola; Juricic, Vladimir; Balatsky, Alexander | We calculate the magnetic susceptibility near the ferroelectric quantum critical point (FE QCP) and find a region with enhanced magnetic signatures that appears near the FE QCP, and is controlled by the tuning parameter of the ferroelectric phase. | Session 151: Quantum Phase Transitions and Critical Points |
| 1934 | Quantum Criticality and the Non-linear I-V Curve of Two-channel Kondo-Luttinger System | Lin, Chao-Yun; Chang, Yung-Yeh; Rylands, Colin; Andrei, Natan; Chung, Chung-Hou | Via bosonization-refermionization approach, we map the system near 1CK-2CK quantum critical point (QCP) and near the Toulouse limit onto an effective fermionic model in weak coupling regime subject to a bosoinc bath. | Session 151: Quantum Phase Transitions and Critical Points |
| 1935 | Unconventional superconductivity driven by Kondo-destruction quantum criticality | Cai, Ang; Pixley, Jed; Ingersent, Kevin; Si, Qimiao | Here we address the pairing instabilities near a Kondo destruction QCP by studying the Anderson lattice model using the Cluster Extended-DMFT approach [3]. | Session 151: Quantum Phase Transitions and Critical Points |
| 1936 | Kondo destruction in multipolar order: Implications for heavy-fermion quantum criticality | Lai, Hsin-Hua; Nica, Emilian; Hu, Wenjun; Gong, Shoushu; Paschen, Silke; Si, Qimiao | Motivated by the quantum-critical heavy-fermion systems [1,2] exhibiting multipolar orders, we theoretically study an effective field theory of a Kondo lattice model involving both spin and quadrupole degrees of freedom. | Session 151: Quantum Phase Transitions and Critical Points |
| 1937 | Observation of half-integer thermal Hall conductance | Heiblum, Moty; Banerjee, Mitali; Umansky, Vladimir; Feldman, Dmitri; Oreg, Yuval; Stern, Ady | I will describe our work on thermal conductance measurements in the QHE regime. | Session 152: New Developments in the FQHE in Half-filled Landau Levels |
| 1938 | Fractional Quantized Hall States with Even Denominator | Halperin, Bertrand | The precise nature of the quantized Hall states is a matter of debate in all these cases, and I will discuss some of the alternative theories. | Session 152: New Developments in the FQHE in Half-filled Landau Levels |
| 1939 | Theory of disorder-induced half-integer thermal Hall conductance | Mross, David; Oreg, Yuval; Stern, Ady; Margalit, Gilad; Heiblum, Moty | Specifically, I will describe a possible resolution based on disorder-induced formation of mesoscopic puddles. | Session 152: New Developments in the FQHE in Half-filled Landau Levels |
| 1940 | Even denominator fractional quantum Hall physics in higher order Landau levels of graphene | Smet, Jurgen | We numerically investigated the known candidate states for even-denominator fractional quantum Hall effect, including the Pfaffian, the particle-hole symmetric Pfaffian, the 221-parton, and several valley/spin singlet states. | Session 152: New Developments in the FQHE in Half-filled Landau Levels |
| 1941 | The Dirac Composite Fermion of the Fractional Quantum Hall Effect | Son, Dam | The Dirac Composite Fermion of the Fractional Quantum Hall Effect | Session 152: New Developments in the FQHE in Half-filled Landau Levels |
| 1942 | Surfaces of axion insulators | Varnava, Nicodemos; Vanderbilt, David | To be explicit, we construct a minimal tight-binding model on the pyrochlore lattice and investigate the all-in-all-out and ferromagnetic spin configurations. | Session 153: Phase Transitions in Topological Systems |
| 1943 | Failure of Nielsen-Ninomiya theorem and fragile topology in two-dimensional systems with space-time inversion symmetry: application to twisted bilayer graphene at magic angle | Ahn, Junyeong; Park, Sungjoon; Yang, Bohm-Jung | We propose that the topological phase transition between insulators carrying different Euler classes can be described by pair creation and annihilation of vortices across Dirac strings. | Session 153: Phase Transitions in Topological Systems |
| 1944 | Topological phase transitions induced by tunable magnetization direction in Chern insulators | Chang, Rui-An; Chang, Ching-Ray | Following the preceding idea, we present a 2D QAHE system, possibly realizable in semiconductor heterostructure, with inversion symmetry breaking and Dresselhaus spin-orbit coupling (SOC). | Session 153: Phase Transitions in Topological Systems |
| 1945 | Topological Superconductivity and Density Waves on the surface of Topological Kondo Insulator | Luo, Yi; Nikolic, Predrag | We study the weak-coupling instabilities in the particle-particle and particle-hole channels on the surface of a prototype Kondo topological insulator. | Session 153: Phase Transitions in Topological Systems |
| 1946 | Higher-Order Topology of Three-Dimensional Strong Stiefel-Whitney Insulators | Ahn, Junyeong; Yang, Bohm-Jung | To characterize the bulk band topology further, we develop a new method based on the homotopy class of the symmetry representation for $C_{2z}T$ in a smooth gauge, instead of examining the obstruction to constructing smooth wavefunctions compatible with the reality condition. | Session 153: Phase Transitions in Topological Systems |
| 1947 | Revisiting topological property of a (t2g)5 system with a honeycomb lattice | Kim, Beom Hyun; Seki, Kazuhiro; Shrakawa, Tomonori; Yunoki, Seiji | In the study, we revisit the topological property of a ( t 2g) 5 system with a honeycomb lattice. | Session 153: Phase Transitions in Topological Systems |
| 1948 | Vertical quantum transport in magnetic topological insulator heterostructures | Pournaghavi, Nezhat; Holmqvist, Cecilia; Pertsova, Anna; Canali, Carlo; MacDonald, Allan | We investigate theoretically a heterostructure composed of a TI thin film sandwiched between two antiferromagnetic (AFM) metal layers. | Session 153: Phase Transitions in Topological Systems |
| 1949 | Current Noise in InAs/GaInSb Corbino structures | Stevens, Loah; Li, Tingxin; Du, Rui-Rui; Natelson, Douglas | We report preliminary shot noise measurements in InAs/GaInSb quantum well interfaces. | Session 153: Phase Transitions in Topological Systems |
| 1950 | Superconducting proximity effects and pairing in (Bi1-xSbx)2Te3 films on niobium | Hlevyack, Joseph; Bai, Yang; Lin, Meng-Kai; Chen, Peng; Fl�totto, David; Liu, Ro-Ya; Tsuzuki, Akihiro; Okazaki, Kozo; Shin, Shik; Eckstein, James; Chiang, Tai-Chang | By developing a novel cleavage-based �flip chip� approach, we have successfully fabricated single-crystalline (Bi 1-xSb x) 2Te 3 thin films of a predetermined thickness (3 � 10 quintuple layers) on top of bulk Nb film. | Session 153: Phase Transitions in Topological Systems |
| 1951 | Theory of topological glass transitions in amorphous topological matter | Sahlberg, Isac; Weststr�m, Alex; P�yh�nen, Kim; Ojanen, Teemu | In this work we introduce a scaling theory of amorphous topological phase transitions in two dimensional systems. | Session 153: Phase Transitions in Topological Systems |
| 1952 | Anomalous scaling law in the quantum Hall plateau-plateau transitions of topological insulator Sn-Bi1.1Sb0.9Te2S devices | Xie, Faji; Zhang, Shuai; Song, Fengqi | Anomalous scaling law in the quantum Hall plateau-plateau transitions of topological insulator Sn-Bi1.1Sb0.9Te2S devices | Session 153: Phase Transitions in Topological Systems |
| 1953 | Mirror Chern number in the hybrid Wannier representation | Rauch, Tom�; Olsen, Thomas; Vanderbilt, David; Souza, Ivo | We formulate the mirror Chern number (MCN) of a two-dimensional insulator with reflection symmetry Mz in terms of hybrid Wannier functions (the eigenfunctions of PzP, the position operator projected onto the valence bands). | Session 153: Phase Transitions in Topological Systems |
| 1954 | Strongly enhanced Berry-dipole at topological phase transitions in BiTeI | Facio, Jorge; Efremov, Dmitri; Koepernik, Klaus; You, Jhih-Shih; Sodemann, Inti; Van den Brink, Jeroen | Here we focus on the giant-Rashba material bismuth tellurium iodine (BiTeI) which exhibits a pressure-driven phase transition between topological and trivial insulators in three-dimensions. | Session 153: Phase Transitions in Topological Systems |
| 1955 | Contrasting the Surface Phonon Dispersion of the Topological Crystalline Insulator Pb0.7Sn0.3Se in its Topologically Trivial and Nontrivial Phases | Kalish, Samuel; Santos, Luiz; Sankar, Raman; Chou, Fangcheng; Chamon, Claudio; El-Batanouny, Maged | We report inelastic He atom surface-scattering measurements of the (001) surface phonons dispersion of the topological crystalline insulator Pb 0.7Sn 0.3Se. | Session 153: Phase Transitions in Topological Systems |
| 1956 | Localization-Driven Correlated States of Two Isolated Interacting Helical Edges | Chou, Yang-Zhi | We study the localization-driven correlated states among two isolated dirty interacting helical edges as realized at the boundaries of two-dimensional $\mathbb{Z}_2$ topological insulators. | Session 153: Phase Transitions in Topological Systems |
| 1957 | Sound modes in one-dimensional quantum liquids | Matveev, Konstantin; Andreev, Anton | We study sound in one-dimensional Galilean invariant quantum liquids. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1958 | The fate of shock waves in quantum one-dimensional fluids at late times | Veness, Thomas; Glazman, Leonid | We investigate how shock formation eventually crosses over to the established framework of generalised hydrodynamics at late times, as well as consider the r�le of interactions in the one-dimensional shock problem. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1959 | Numerical evidence for continuous transition between Ising ferromagnet and valence bond solid in one dimension | Roberts, Brenden; Jiang, Shenghan; Motrunich, Olexei | We perform a numerical study of a spin-1/2 model with Z2 x Z2 symmetry in one dimension which demonstrates an interesting similarity to the physics of two-dimensional deconfined quantum critical points (DQCP). | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1960 | Photoinduced enhancement of bond-order in the one-dimensional extended Hubbard model | Shao, Can; Tohyama, Takami; Mondaini, Rubem; Luo, Hong-Gang; Lu, Hantao | Using the time-dependent Lanczos technique, we investigate the short-time evolution of the half-filled one-dimensional extended Hubbard model in the strong-coupling regime, when driven by a transient laser pulse. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1961 | Competing orders in the one-dimensional Su-Schrieffer-Heeger model | Weber, Manuel; Hohenadler, Martin | We study the phase diagram of the one-dimensional spinless Su-Schrieffer-Heeger (SSH) model at half filling as a function of phonon frequency and electron-phonon coupling. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1962 | Critical Entanglement for the Half-Filled One-Dimensional Extended Hubbard Model | Spalding, Jon; Tsai, Shan-Wen; Campbell, David | In this talk, we present new techniques based on conformal field theory that enable rapid, cheap extraction of critical points and critical exponents at both 2 nd order and BKT transitions for open-boundary DMRG wave functions. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1963 | Crossovers and critical scaling in the one-dimensional transverse-field Ising model | Wu, Jianda; Zhu, Lijun; Si, Qimiao | We consider the scaling behavior of thermodynamic quantities in the one-dimensional transverse field Ising model near its quantum critical point (QCP). | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1964 | Quantum field theory for the chiral clock transition in one spatial dimension | Whitsitt, Seth; Samajdar, Rhine; Sachdev, Subir | We describe the quantum phase transition in the N-state chiral clock model in spatial dimension d=1. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1965 | Electrical Switching in Mott Material 1D Nanowires: Joule Heating vs. Electric Field | Kalcheim, Yoav; del Valle, Javier; Lee, Min-Han; Salev, Pavel; Schuller, Ivan | We show unambiguous evidence for thermal and non-thermal mechanisms behind the insulator-to-metal transition in current-driven Mott materials. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1966 | Coulomb-interaction-induced Majorana edge modes in nanowires | Li, Tommy; Flensberg, Karsten; Burrello, Michele | Coulomb-interaction-induced Majorana edge modes in nanowires | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1967 | 1d Lattice Models for the Boundary of 2d �Majorana� Fermion SPTs: Kramers-Wannier Duality as an Exact Z2 Symmetry. | Jones, Robert; Metlitski, Max | We introduce a description of this Hilbert space akin to the Jordan-Wigner bosonization of a fermion chain and find the action of the Z 2 symmetry on it. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1968 | Localization and Entanglement in Two-Dimensional Itinerant SYK Model | Ong, Tze Tzen | We study a two dimensional itinerant SYK model with a linear dispersion, and by an asymptotic power series solution of the large-N saddle point equations, we find that the random SYK interactions result in formation of localized bound states. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1969 | Non-Linear transport in low density 2D hole systems | Kruglov, Dmitrii; Kogan, Andrei; Liu, Chieh-Wen; Gao, Xuan; Pfeiffer, Loren; West, Kenneth | We report measurements of non-linear magnetotransport in 10 nm wide p-doped GaAs/Al 0.1Ga 0.9As quantum wells with low hole density (n ~ 10 10 cm -2) and high mobility (m ? 5 x 10 5 cm 2/Vs). | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1970 | Magnetoresistance at the 2D MIT: Evidence of Micro-emulsion Phases | Li, Shiqi; Zhang, Qing; Ghaemi, Pouyan; Sarachik, Myriam | Magnetoresistance at the 2D MIT: Evidence of Micro-emulsion Phases | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1971 | Phase diagrams of pi-flux quantum spin liquid in kagome lattice | Yang, Hyeok-Jun; Lee, SungBin | We study possible phase transitions between spin liquids and magnetically ordered states of quantum spin ice in a pyrochlore lattice. | Session 154: One and Two Dimensional Correlated Electron Systems |
| 1972 | Learning quantum states with generative models | Carrasquilla, Juan | In this talk, I will discuss the use of generative models for learning quantum states. | Session 155: Machine Learning Quantum States |
| 1973 | Machine Learning Holography in Neural Network Renormalization Group | Hu, Hongye; Li, Shuo-Hui; Wang, Lei; You, Yizhuang | Inspired by those, we propose any boundary conformal field theory can be mapped into its holographic bulk to an operator level. | Session 155: Machine Learning Quantum States |
| 1974 | Analytic continuation by combining sparse modeling with the Pade approximation | Motoyama, Yuichi; Yoshimi, Kazuyoshi; Otsuki, Junya; Shinaoka, Hiroshi | In this study, we have improved SpM method by combining it with AC by the Pade approximation. | Session 155: Machine Learning Quantum States |
| 1975 | A machine learning approach to excited states of quantum many-body systems | Hendry, Douglas; Feiguin, Adrian | We present a variational Monte Carlo method for determining dynamical properties and the spectral function of quantum many-body systems. | Session 155: Machine Learning Quantum States |
| 1976 | Machine Learning Spatial Geometry from Entanglement Features | You, Yizhuang | Motivated by the close relations of the renormalization group with both the holography duality and the deep learning, we propose that the holographic geometry can emerge from deep learning the entanglement feature of a quantum many-body state. | Session 155: Machine Learning Quantum States |
| 1977 | Machine learning many-body localization: Search for the elusive nonergodic metal | Li, Xiao; Hsu, Yi-Ting; Deng, Dong-Ling | In this Letter, we construct a neural network classifier to investigate the existence of the nonergodic metallic phase in a prototype model using many-body entanglement spectra as the sole diagnostic. | Session 155: Machine Learning Quantum States |
| 1978 | Machine learning of condensed-matter phases with physical interpretability | Han, Ming; Wei, Zonghui; Luijten, Erik | Here we introduce a new ML scheme, which distinguishes different condensed-matter phases by autonomously recognizing order parameters. | Session 155: Machine Learning Quantum States |
| 1979 | Interpretable Machine Learning Study of Many-Body Localization Transition in Disordered Quantum Spin Chains | Zhang, Wei; Wang, Lei; Wang, Ziqiang | We develop, train, and apply a support vector machine (SVM) to study the phase transition between many-body localized and thermal phases in a disordered quantum Ising chain. | Session 155: Machine Learning Quantum States |
| 1980 | Analytic continuation via �domain-knowledge free� machine learning | Yoon, Hongkee; Sim, Jae-Hoon; Han, Myung Joon | We present a machine-learning (ML) approach to a long-standing issue in quantum many-body physics, namely, analytic continuation. | Session 155: Machine Learning Quantum States |
| 1981 | Monte Carlo Renormalization Group for Systems with Quenched Disorder | Wu, Yantao; Car, Roberto | We extend to quenched disordered systems the variational scheme for real space renormalization group calculations that we recently introduced for homogeneous spin Hamiltonians. | Session 155: Machine Learning Quantum States |
| 1982 | Machine Learning Physics: From Quantum Mechanics to Holographic Geometry | You, Yizhuang | In this talk, I will present our progress in applying machine learning technique to reveal the quantum wave function of Bose-Einstein condensate (BEC) and the holographic geometry of conformal field theories. | Session 155: Machine Learning Quantum States |
| 1983 | Comparing deep reinforcement-learning techniques: applications to quantum memory | Tighineanu, Petru; Foesel, Thomas; Weiss, Talitha; Marquardt, Florian | Here we conduct an in-depth study of the performance of more advanced reinforcement-learning techniques [2] applied to a noisy quantum memory. | Session 155: Machine Learning Quantum States |
| 1984 | Structural Predictors for Machine Learning Modeling of Superconductivity in Iron-based Materials | Stanev, Valentin; Flowers, Jack; Takeuchi, Ichiro | To address this question we use Machine Learning (ML) approach. Based on published data we created a database covering the available structural information of the 122 family of materials. | Session 155: Machine Learning Quantum States |
| 1985 | Predicting physical properties of alkanes with neural networks | Santak, Pavao; Conduit, Gareth | In order to address this issue, we train neural networks that can work with fragmented data, enabling us to exploit the property-property correlations and increase the accuracy of our models. | Session 155: Machine Learning Quantum States |
| 1986 | Understanding Magnetic Properties of Uranium-Based Binary Compounds from Machine Learning | Ghosh, Ayana; Nakhmanson, Serge; Zhu, Jian-Xin | In order to investigate such links and bridge between theoreotical and experimental learnings, we have constructed two databases combining results of high-throughput DFT simulations and experimental measurements, respectively, for a family of uranium-based binary compounds. | Session 155: Machine Learning Quantum States |
| 1987 | Machine learning-assisted search for high performance plasmonic metals | Shapera, Ethan; Schleife, Andre | We iteratively improve the model with active learning by adding DFT results for predicted high quality factor metals into the training set. | Session 155: Machine Learning Quantum States |
| 1988 | Machine Learning and Crystal Structure Prediction of Molecular Crystals | Lot, Ruggero; Pellegrini, Franco; Shaidu, Yusuf; Kucukbenli, Emine | In order to leverage this synergy further, we have been developing a deep neural network training tool, PANNA (Potentials from Artificial Neural Network Architectures), based on TensorFlow framework [2]. | Session 155: Machine Learning Quantum States |
| 1989 | Fitting effective models using QMC parameter derivatives | Wheeler, William; Pathak, Shivesh; Wagner, Lucas | We demonstrate the new technique by computing a band structure for silicon using first principles quantum Monte Carlo. | Session 155: Machine Learning Quantum States |
| 1990 | Detection of Phase Transitions in Quantum Spin Chains via Unsupervised Machine Learning | Akagi, Yutaka; Yoshioka, Nobuyuki; Katsura, Hosho | In this research, we investigate quantum phase transitions in various quantum spin chains by using an autoencoder which is one of unsupervised learning methods. | Session 155: Machine Learning Quantum States |
| 1991 | Supervised learning of phase transitions in classical and quantum systems | Walker, Nicholas; Tam, Ka-Ming; Jarrell, Mark | Supervised machine learning methods are used to identify transitions in physical systems using the classical solid-liquid transition of a Lennard-Jones system as well as the strong coupling-local moment quantum transition in the soft-gap Anderson model as examples. | Session 155: Machine Learning Quantum States |
| 1992 | Hybrid neural network – quantum simulator | Torlai, Giacomo | I will present this classical-quantum hybridization for quantum hardware based on trapped ultra-cold atoms and superconducting qubits. | Session 155: Machine Learning Quantum States |
| 1993 | Reinforcement Learning Decoders for Fault-Tolerant Quantum Computation | Sweke, Ryan; Kesselring, Markus; Van Nieuwenburg, Evert; Eisert, Jens | Reinforcement Learning Decoders for Fault-Tolerant Quantum Computation | Session 155: Machine Learning Quantum States |
| 1994 | The recoverable quantum information: A smart reward for reinforcement learning of quantum error correction | Foesel, Thomas; Tighineanu, Petru; Weiss, Talitha; Marquardt, Florian | In order to address this question, we have developed a new quantity, which we call the recoverable quantum information. | Session 155: Machine Learning Quantum States |
| 1995 | Quantum error correction for the Toric code using Deep reinforcement learning | Andreasson, Philip; Liljestrand, Simon; Johansson, Joel; Granath, Mats | We implement a quantum error correction algorithm for the Toric code using Deep reinforcement learning. | Session 155: Machine Learning Quantum States |
| 1996 | Restricted Boltzmann Machines and Matrix Product States of 1D Translational Invariant Stabilizer Codes | Zheng, Yunqin; He, Huan; Regnault, Nicolas; Bernevig, Andrei | In terms of RBM, we provide an algorithm to derive the RBM for the cocycle Hamiltonians whose MPS matrices are proved to be of rank 1. | Session 155: Machine Learning Quantum States |
| 1997 | Neural loop algorithm for square ice model | Kao, Ying-Jer; Zhao, Kai-Wen; Kao, Wen-Han | We exploit a reinforcement learning method that parameterizes the transition operator with neural networks. | Session 155: Machine Learning Quantum States |
| 1998 | Variational optimization in the AI era: supervised wave-function optimization and computational graph states. | Kochkov, Dmitrii; Clark, Bryan | We introduce a machine learning inspired computational framework that works with wave-functions represented as differentiable computational graphs and develop a novel optimization algorithm Supervised Wave-function Optimization, that allows for effective optimization of such models. | Session 155: Machine Learning Quantum States |
| 1999 | Generalized Transfer Matrix States from Artificial Neural Networks | Pastori, Lorenzo; Kaubruegger, Raphael; Budich, Jan | We propose and investigate a new family of quantum states, coined generalized transfer matrix states (GTMS), which bridges between tensor network states and states derived from artificial neural networks (ANNs). | Session 155: Machine Learning Quantum States |
| 2000 | Construction of Hamiltonians by supervised learning of energy spectra | Fujita, Hiroyuki; Nakagawa, Yuya; Sugiura, Sho; Oshikawa, Masaki | We present potential applications for the construction of entanglement Hamiltonians and materials discovery through the construction of parent Hamiltonians from effective models of topological matters. | Session 155: Machine Learning Quantum States |
| 2001 | Backflow Transformations via Neural Networks for Quantum Many-Body Wave-Functions | Luo, Di; Clark, Bryan | In this paper, we propose a new class of wave functions, neural network backflow (NNB). | Session 155: Machine Learning Quantum States |
| 2002 | Contrasting the Building Blocks of Grain Boundaries using Local vs. Multi-Scale Universal Descriptors | Hensley, Derek; Rosenbrock, Conrad; Nguyen, Andrew; Hart, Gus; Homer, Eric | We present another universal GB representation using a multi-scale, scattering transform that also discovers GB building blocks. | Session 155: Machine Learning Quantum States |
| 2003 | Classification and construction of higher-order symmetry protected topological phases of interacting bosons | Rasmussen, Alexander; Lu, Yuanming | Based on a dimensional reduction analysis, we show that HOSPT phases can be built from lower-dimensional SPT phases in a way that preserves the associated crystalline symmetries. | Session 156: Quantum Effects in Topological Systems |
| 2004 | Intrinsically interacting topological crystalline insulators and superconductor | Rasmussen, Alexander; Lu, Yuanming | Motivated by recent progress in crystalline symmetry protected topological (SPT) phases of interacting bosons, we study topological crystalline insulators/superconductors (TCIs) of strongly interacting fermions. | Session 156: Quantum Effects in Topological Systems |
| 2005 | Disorder-induced helical phase in magnetic topological insulators | Haim, Arbel; Ilan, Roni; Alicea, Jason | We study the de-magnetization process and show that disorder from randomly oriented magnetic moments can produce a quantum-spin-Hall-like phase with counter-propagating helical edge modes protected by a unitary reflection symmetry. | Session 156: Quantum Effects in Topological Systems |
| 2006 | Topological states from topological crystals | Song, Zhida; Huang, Sheng-Jie; Qi, Yang; Fang, Chen; Hermele, Michael | We show that crystalline symmetry protected topological states is adiabatically connected to a real-space crystalline pattern of lower-dimensional topological states, which we refer to as a topological crystal. | Session 156: Quantum Effects in Topological Systems |
| 2007 | Landau levels of topological surface states probed by quantum capacitance | Chong, Su Kong; Tsuchikawa, Ryuichi; Harmer, Jared; Sparks, Taylor D.; Deshpande, Vikram V. | In this work, we study the quantum capacitance of a truly bulk insulating 3D TI via a TI-based van der Waals heterostructures configuration. | Session 156: Quantum Effects in Topological Systems |
| 2008 | Band structure and superconductivity in In-doped topological insulator (Pb0.5Sn0.5)1-xInxTe probed by NMR spectroscopy | Young, Ben-Li; Tsai, Ping-Chun; Gu, Genda | We found that the NMR frequency shifts of 117Sn, and 207Pb are dominated by the spins of free charge carriers, whereas the 125Te frequency shift is determined by the magnetic orbital moments of the binding electrons. | Session 156: Quantum Effects in Topological Systems |
| 2009 | Disorder-driven phase transitions in chiral-symmetric topological insulators | Claes, Jahan; Hughes, Taylor | Here we study a collection of 2D chiral-symmetric models with disorder using a covariant real space formula for the topological invariant. | Session 156: Quantum Effects in Topological Systems |
| 2010 | Low Temperature Terahertz Nano Imaging of WTe2 Thin Film | Jing, Ran; Shao, Yinming; Fei, Zaiyao; Xu, Xiaodong; Basov, Dimitri | We discuss the development of cryogenic scanning near-field microscope suitable for nano-scale imaging and spectroscopy at terahertz frequency range with the spatial resolution below 130 nm[1]. | Session 156: Quantum Effects in Topological Systems |
| 2011 | Detection of higher order topological phase in a disordered breathing Kagome model by using machine learning | Araki, Hiromu; Mizoguchi, Tomonari; Hatsugai, Yasuhiro | Here we investigate a phase diagram of higher order topological insulator phases in a breathing Kagome model in the presence of disorders, by using a state-of-the-art machine learning technique. | Session 156: Quantum Effects in Topological Systems |
| 2012 | Double-frequency Aharonov-Bohm effect and non-Abelian braiding property of Jackiw-Rebbi zero-mode | Wu, Yijia; Liu, Jie; Liu, Haiwen; Jiang, Hua; Xie, Xincheng | We numerically investigate the Jackiw-Rebbi zero-mode in a quantum spin Hall insulator heterostructure and show that its zero-energy nature leads to a double-frequency Aharonov-Bohm effect in electronic transport. | Session 156: Quantum Effects in Topological Systems |
| 2013 | Quasi-particle Interference on the Step Edges of Epitaxial Stanene on InSb (111) | Zhang, Jianfeng; Zheng, Xiaohu; Du, Rui-Rui | We have performed the in-situ scanning tunneling microscopy experiments on stanene which was epitaxially grown on the InSb (111). | Session 156: Quantum Effects in Topological Systems |
| 2014 | Experimental demonstration of the robustness of topological surface states on a PbTaSe2 superconductor | Zheng, Hao; Jia, Shuang; Lin, Hsin; Hasan, Zahid | By means of scanning tunneling microscopy, we find metallic surface states on both types of surfaces. | Session 156: Quantum Effects in Topological Systems |
| 2015 | Chiral Phonon Transport Induced by Topological Magnons | Thingstad, Even; Kamra, Akashdeep; Brataas, Arne; Sudbo, Asle | In such systems, we theoretically study how magnons and phonons couple. | Session 156: Quantum Effects in Topological Systems |
| 2016 | First-order topological quantum phase transitions in strongly correlated one-dimensional systems | Barbarino, Simone | Specifically, I consider a four-leg ladder which supports a symmetry protected topological phase in the presence of an on-site repulsive interaction, but is driven towards a trivial phase by a nearest-neighbor interaction. | Session 156: Quantum Effects in Topological Systems |
| 2017 | Precision Displacement Measurement Using a Shearing Interferometer | KC, Raju; Nichols, Cainan; Lee, Jaxon; Flagg, Edward | We demonstrate an economic way to achieve the required precision by mechanically connecting the FPI cavity to a shearing interferometer where fluctuations in the mirror separation can be measured using the interference pattern formed by a relatively inexpensive single-frequency laser. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2018 | Spin-selective AC Stark shifts in a charged quantum dot | Wilkinson, Tristan; Cottrill, Dillion; Cramlet, Joshua; Maurer, Cole; Flood, Collin; Bracker, Allan; Flagg, Edward | We achieve an AC Stark shift of up to 20 GHz in a single negatively charged InGaAs quantum dot. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2019 | Superconducting transport in InAs nanowire double quantum dots | Bouman, Dani�l; Gulik, Ruben; Laroche, Dominique; Nyg�rd, Jesper; Krogstrup, Peter; Geresdi, Attila | We define double quantum dots (DQDs) in InAs nanowires with epitaxial aluminum shell. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2020 | Charging of a Single InAs QD with Electrically-Injected Holes using a Lateral Electric Field | Ma, Xiangyu; Wang, Yuejing; Zide, Joshua; Doty, Matthew | Here, we report a new charging mechanism of a single QD using lateral electric field with a 3-electrode device. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2021 | Qunatum mechanics on a torus: Energy levels, Zeeman splitting and transport properties | Das, Debanik; Bharadwaj, Sathwik; Pandey, Siddhant; Ram-Mohan, L | We construct the corresponding action and obtain the eigensolutions through a generalized varaional approach. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2022 | Spectroscopy of Quantum-Dot Orbitals with In-Plane Magnetic Fields | Camenzind, Leon; Yu, Liuqi; Stano, Peter; Zimmerman, Jeramy; Gossard, Arthur; Loss, Daniel; Zumbuhl, Dominik | Here, we present a method which allows quantifying the in-plane orientation angle and the strength of the hard confinement perpendicular to the 2D gas in which the gate-defined single-electron GaAs dot is formed. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2023 | Toward exploring multichannel charge Kondo effects for investigating quantum criticality | Hsueh, Connie; Drachmann, Asbjorn; Thomas, Candice; Gardner, Geoffrey; Wang, Tian; Gronin, Sergei; Manfra, Michael; Marcus, Charles; Goldhaber-Gordon, David | Toward exploring multichannel charge Kondo effects for investigating quantum criticality | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2024 | Transient dynamics of a quantum-dot: From Kondo regime to mixed valence and to empty orbital regimes | Cheng, Yongxi; Li, Zhen-Hua; Wei, Jian-Hua; Nie, Yi-Hang; Yan, Yijing | Based on the hierarchical equations of motion approach, we study the time-dependent transport properties of a strongly correlated quantum dot system in the Kondo regime (KR), mixed valence regime (MVR), and empty orbital regime (EOR). | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2025 | Fano and Fano-Kondo resonance in double quantum dot in parallel | Zhang, Yujie; Eto, Mikio | To address this issue, we theoretically examine the nonequilibrium transport through a double quantum dot (DQD) in parallel: resonant tunneling at the Coulomb peak or Kondo effect in the Coulomb valley in quantum dot 1, with a broad linewidth in quantum dot 2. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2026 | Single-Electron Charging Effects in Sketched LaAlO3/SrTiO3 Single-Electron Transistors | Shenk, Philip; Maier, John; Sebolt, Juliana; Lee, Jungwoo; Lee, Hyungwoo; Eom, Chang-Beom; Li, Jianan; Irvin, Patrick; Levy, Jeremy | Here we describe renewed efforts to explore the properties of �sketched� SETs at the LaAlO 3/SrTiO 3 interface, focusing on the temperature and magnetic-field dependence of transport. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2027 | Ultra-stable atomically precise single electron transistors in Silicon | Kashid, Ranjit; Murphy, Andrew; Wyrick, Jonathan; Namboodiri, Pradeep; Wang, Xiqiao; Schmucker, Scott; Silver, Richard; Zimmerman, Neil | In this context, we demonstrate fully functional, ultra-stable atomically precise SETs fabricated using scanning tunneling microscope (STM) lithography on the Si (100) 2×1: H surface. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2028 | Tunnel Junction Design and Characterization in Si:P Single Electron Transistors | Wyrick, Jonathan; Wang, Xiqiao; Kashid, Ranjit; Namboodiri, Pradeep; Schmucker, Scott; Silver, Richard | We report on reproducibility of tunnel coupling as measured in atomically precise single electron transistors (SETs). | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2029 | Fabrication and Measurement of Atomically Precise Single Electron Islands | Ward, Daniel; Campbell, DeAnna; Marshall, Michael; Lu, Tzu-Ming; Tracy, Lisa; Maurer, Leon; Baczewski, Andrew; Misra, Shashank | We present on fabrication techniques for adding top gates to devices and the resulting low-temperature measurements on tunnel junctions and single electron islands. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2030 | The role of confinement and interaction in the emergence of aromatic features in nanoscale synthetic molecules | Ruth, Anthony; Green, David; Gomes, Kenjiro; Janko, Boldizsar | We examine this problem from the experimental data obtained via scanning tunneling spectroscopy and topography, tight-binding modeling of hopping and interaction Hamiltonians, as well as density functional theory calculations to determine what aspects of the fully-interacting picture can be produced by the single-electron approach. | Session 157: Quantum Dots and Single Electron Structures: Optical, Electronic and Transport Properties |
| 2031 | Nematic superconductivity stabilized by density wave fluctuations: Application to twisted bilayer graphene | Kozii, Vladyslav; Isobe, Hiroki; Venderbos, Jorn; Fu, Liang | In this work we propose a mechanism for nematic superconductivity stabilized by strong density wave fluctuations in two dimensions. | Session 158: Superconductivity in Graphene etc. |
| 2032 | Antiferromagnetically ordered Mott insulator and d + id superconductivity in twisted bilayer graphene: A quantum Monte Carlo study | Huang, Tongyun; Zhang, Lufeng; Ma, Tianxing | From the Hubbard model on a double-layer honeycomb lattice with a rotation angle ?=1.08�, we reveal that an antiferromagnetically ordered Mott insulator emerges beyond a critical U c at half filling, and with a small doping, the pairing with d+id symmetry dominates over other pairings at low temperature. | Session 158: Superconductivity in Graphene etc. |
| 2033 | Possible superconductivity through the magnetic exchange in transition-metal intercalated bilayer graphene | Lucht, Kevin; Mahabir, Aditi; Alcantara, Alexandria; Balatsky, Alexander; Mendoza-Cortes, Jose L.; Haraldsen, Jason | This study examines the possibility of superconductivity in transition-metal intercalated bilayer graphene. | Session 158: Superconductivity in Graphene etc. |
| 2034 | Pairing symmetry and spontaneous vortex-antivortex lattice in superconducting twisted bilayer graphene: A Bogoliubov-de Gennes approach | Lin, Shizeng; Su, Ying | We study the superconducting pairing symmetry in twisted bilayer graphene by solving the Bogoliubov-de Gennes equation for all electrons in Moir\'{e} supercells. | Session 158: Superconductivity in Graphene etc. |
| 2035 | Quantum Monte Carlo Study of Metal-Insulator Transitions on the Honeycomb Lattice | Wang, Jingyao; Ma, Tianxing | We investigate the band insulator-metal-Mott insulator transitions in the ionic Hubbard model on the 12*12 honeycomb lattice at half filling using determinant quantum Monte Carlo method. | Session 158: Superconductivity in Graphene etc. |
| 2036 | Carbon-nanotube based highly flexible superconducting wire | Kim, Jeong-gyun; Kang, Haeyong; Suh, Dongseok | In this work, we explored the feasibility of new fabrication of superconducting wire by using carbon nanotube (CNT) based yarn combined with superconducting materials. | Session 158: Superconductivity in Graphene etc. |
| 2037 | Theory of insulating phase and superconductivity in twisted bilayer graphene | Gu, Xingyu; Laksono, Evan; Chen, Chuan; Leaw, Jia Ning; Raghuvanshi, Nimisha; Adam, Shaffique | We study theoretically these two phases in both the weak and strong coupling limit. | Session 158: Superconductivity in Graphene etc. |
| 2038 | Competing pairing propensities in twisted bilayer graphene | Wu, Xianxin; Fink, mario; Klett, Michael; Wehling, Tim; Hanke, Werner; Thomale, Ronny | We employ a synopsis of random phase approximation (RPA) and functional renormalization group (fRG) to investigate twisted bilayer graphene based on a two-orbital effective model on the honeycomb lattice. | Session 158: Superconductivity in Graphene etc. |
| 2039 | Magnetic and superconducting correlation in monolayer and twisted-bilayer graphene | Ma, Tianxing; Huang, Tongyun; Zhang, Lufeng | From the Hubbard model on a double-layer honeycomb lattice with a rotation angle ?=1.08, we reveal that an antiferromagnetically ordered Mott insulator emerges beyond a critical U c at half filling, and with a small doping, the pairing with d+id symmetry dominates over other pairings at low temperature. | Session 158: Superconductivity in Graphene etc. |
| 2040 | Strain induced superconducting pair-density-wave states in graphene | Mou, Chung-Yu; Xu, Feng; Chung, Chung-Hou; Lee, Ting-Kuo | Here we show that superconductivity can be more easily realized in topological flat-bands induced by strain in graphene through periodic ripples. | Session 158: Superconductivity in Graphene etc. |
| 2041 | Effective model for Majorana modes in graphene | Manesco, Antonio; Rodrigues Junior, Durval; Weber, Gabriel | Starting from a mean-field continuum model for graphene in proximity to a superconductor, we derive the low-energy effective Hamiltonian describing the interface of this heterojunction from first principles. | Session 158: Superconductivity in Graphene etc. |
| 2042 | Bulk supercurrent at high magnetic field in Graphene Josephson junctions | Chen, Ruoyu; Liu, Yulu; Watanabe, Kenji; Taniguchi, Takashi; Lau, Chun Ning | Here we report our efforts fabricating hBN-encapsulated graphene Josephson junctions in various geometries. | Session 158: Superconductivity in Graphene etc. |
| 2043 | Andreev reflection in Graphene�superconductor junctions in the quantum Hall regime | Cuozzo, Joseph; Thomas, Stuart; Hu, Xiang; Rossi, Enrico | We investigate the Andreev reflection at an interface between a graphene layer in the quantum Hall regime and a superconductor. | Session 158: Superconductivity in Graphene etc. |
| 2044 | Coherent transport and electron interference in cuprate superconductor/graphene junctions | Perconte, D; Ulysse, Christian; Bercioux, D; Trastoy, J; Sander, Anke; D’Ambrosio, Sophie; Kidambi, P.; Hofmann, S; Dlubak, Bruno; Seneor, Pierre; Bergeret, F. Sebastian; Villegas, Javier | Here we will discuss new experiments in the same type of junctions, in which a different type of interferences �this time controlled by the bias voltage� are observed which are due to geometrical resonances and coherent propagation of electron/hole pairs across a graphene channel. | Session 158: Superconductivity in Graphene etc. |
| 2045 | Ultrafast Photocurrents in the Weyl Semimetal TaAs | Sirica, Nicholas; Tobey, Ra’anan; Zhao, Lingxiao; Chen, Genfu; Xu, Bing; Yang, Run; Shen, Bing; Yarotski, Dzmitry; Bowlan, Pamela; Trugman, Stuart; Zhu, Jian-Xin; Dai, Yaomin; Azad, Abul; Ni, Ni; Qiu, Xianggang; Taylor, Antoinette; Prasankumar, Rohit | We investigate polarization-dependent, ultrafast photocurrents in the Weyl semimetal TaAs using terahertz (THz) emission spectroscopy. | Session 159: Novel Transport in Topological Systems |
| 2046 | Elastic gauge fields and zero-field 3D quantum Hall effect in hyperhoneycomb lattices | Kim, Sang Wook; Uchoa, Bruno | We derive the elastic gauge fields that emerge from lattice deformations in the hyperhoneycomb lattice, a three-dimensional structure with trigonally connected sites. | Session 159: Novel Transport in Topological Systems |
| 2047 | Proximal Anomalous Hall Effect in Ferromagnetic Insulator/Bulk-insulating BiSbTeSe2 Heterostructures | Zhao, Shihua; Deng, Haiming; Rhodes, Daniel; Hone, James; Konczykowski, Marcin; Wolos, Agnieszka; Krusin-Elbaum, Lia | Here we report on the trilayer structure comprising bulk-insulating TI BiSbTeSe 2 (BSTS) sandwiched between a two-dimensional van der Waals ferromagnetic insulator Cr 2Ge 2Te 6 (CGT) grown using Bridgeman method. | Session 159: Novel Transport in Topological Systems |
| 2048 | Nodal Arc in Disordered Dirac Fermions: Connection to Non-Hermitian Band Theory | Papaj, Michal; Isobe, Hiroki; Fu, Liang | This result is explicitly demonstrated using renormalization group analysis in a disordered Dirac model that we introduce, where the disorder potential acts differently on the two orbitals. | Session 159: Novel Transport in Topological Systems |
| 2049 | Interacting Dirac Semimetals | Zhang, Rui-Xing; Huang, Sheng-Jie; Yu, Jiabin | With the help of the dimensional reduction technique, we explicitly show that 3d Dirac semimetals protected by C_n rotation symmetries, such as Cd3As2 and Na3Bi, can be adiabatically connected to a gapped 3d axion insulator and gapless 1d axion strings in a symmetric way. | Session 159: Novel Transport in Topological Systems |
| 2050 | Influence of Landau levels in the phonon dispersion of Weyl semimetals | Rinkel, Pierre; Lopes, Pedro; Garate, Ion | In this work, we generalize those earlier results to magnetic fields of arbitrary strength by incorporating the influence of Landau levels in the phonon spectra. | Session 159: Novel Transport in Topological Systems |
| 2051 | Anomalous off-diagonal thermal response in Mn$_{3}$Ge | Xu, Liangcai; Li, Xiaokang; lu, xiufang; Collignon, Clement; Subedi, Alaska; Fauque, Benoit; Zhu, Zengwei; Behnia, Kamran | We present a study of anomalous transverse response in non-collinear antiferromagnet Mn$_{3}$Ge down to sub-Kelvin temperature. | Session 159: Novel Transport in Topological Systems |
| 2052 | Localized Plasmons in One Dimensional Topological Systems | Jiang, Zhihao; Groenewald, Roelof; Roesner, Malte; Haas, Stephan | In this work, we study plasmon modes in these systems by calculating the real space dielectric function within the random phase approximation. | Session 159: Novel Transport in Topological Systems |
| 2053 | ?-ARPES studies of few-layer WTe2 | Rossi, Antonio; Jozwiak, Chris; Bostwick, Aaron; Rotenberg, Eli; Lee, Seng Huat; Redwing, Ronald; Dressler, Kevin; Vishik, Inna | We will present micro-ARPES studies on bulk and few-layer WTe2, which connect microscopic electronic structure to observations from transport experiments. | Session 159: Novel Transport in Topological Systems |
| 2054 | “Glide-resolved selection rules for scanning-tunneling microscopy; application to Black Phosphorus and Zirconium(III) Chloride” | Hong, Jung Pyo; Wieder, Benjamin; Wang, Zhijun; Zaletel, Michael; Bernevig, Andrei | We propose Zirconium(III) Chloride and Black Phosphorus, whose monolayers respect pma2, as material candidates for the observation of gQPI in the presence and absence of SOC, respectively. | Session 159: Novel Transport in Topological Systems |
| 2055 | Purely Rotational Symmetry-Protected Topological Crystalline Insulator ?-Bi4Br4 | Hsu, Chuang-Han; Chang, Tay-Rong; ZHOU, XIAOTING; Ma, Qiong; Gedik, Nuh; Bansil, Arun; Pereira, Vitor; Fu, Liang; Xu, Suyang; Lin, Hsin | We show that the ?-Bi4Br4’s (010) surface exhibits a pair of unpinned topological Dirac fermions protected by the two-fold rotational axis. | Session 159: Novel Transport in Topological Systems |
| 2056 | Modeling Image Potential States on Topological Semimetal Antimony Surface | Zhang, Haimei; Ge, Jianfeng; He, Yang; Yam, Yau Chuen; Chen, Pengcheng; Hoffman, Jennifer | Here we present scanning tunneling spectroscopy (STS) studies of Sb at high energy where quantized image potential states form due to the binding between the tunneling electron and the polarized surface. | Session 159: Novel Transport in Topological Systems |
| 2057 | Pnictide square net materials with reduced symmetry, the rare earth diantimonides: electronic structure and topology | Michiardi, Matteo; Arnold, Fabian; Razzoli, Elia; Fisher, Karl; Ganapathy, Vaitheeswaran; Levy, Giorgio; Boschini, Fabio; Elfimov, Ilya; Iversen, Bo; Hofmann, Philip; Damascelli, Andrea | In this talk we will show a new variety of square net semimetals whose structure breaks the 4-fold symmetry, the rare earth di-antimonides. | Session 159: Novel Transport in Topological Systems |
| 2058 | de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2 | Ye, Linda; Chan, Mun Keat; McDonald, Ross; Graf, David; Kang, Min Gu; Liu, Junwei; Suzuki, Takehito; Comin, Riccardo; Fu, Liang; Checkelsky, Joseph | We report the study of the de Haas-van Alphen effect in the ferromagnetic kagome metal Fe3Sn2, where massive Dirac electronic states have been identified by spectroscopic means [1,2]. | Session 159: Novel Transport in Topological Systems |
| 2059 | Topological insulator materials for advanced nonlinear in-chip plasmonic devices | Xiang, Yinxiao; Yan, Chenhui; Li, Lian; Cen, Cheng | We report extraordinarily large third harmonic generation (THG) signal from telecom wavelength incidences in Bi 2Se 3 and Sb 2Te 3 grown by molecular beam epitaxy (MBE). | Session 159: Novel Transport in Topological Systems |
| 2060 | Topological triply-degenerate points in ultracold atoms and photonic hyperbolic metamaterials | Zhang, Chuanwei | In this talk, I will discuss three new types of TDPs that are classified by different monopole charges (C = +/- 2, 1, 0) and induced by the interplay between spin-tensor- and spin-vector-momentum couplings. | Session 160: Topological States in AMO Systems |
| 2061 | A Bose-Einstein Condensate on a Synthetic Hall Cylinder | Li, Chuan-Hsun; Yan, Yangqian; Choudhury, Sayan; Blasing, David; Zhou, Qi; Chen, Yong | We observe Bloch oscillations of the BEC with doubled periodicity of the band structure, analogous to traveling on a M�bius strip, reflecting the BEC’s emergent crystalline order with nonsymmorphic symmetry-protected band crossings. | Session 160: Topological States in AMO Systems |
| 2062 | Topological Phases of Fermions in Kagome Optical Lattices | Scarola, Vito; Chen, Mengsu; Hui, Hoi-Yin; Tewari, Sumanta | We use numerical diagonalization and mean field theory to study models of fermionic atoms and molecules placed in kagome optical lattices. | Session 160: Topological States in AMO Systems |
| 2063 | Tomography of Floquet topological singularities: How to measure topological invariants in periodically driven systems | Unal, Nur; Seradjeh, Babak; Eckardt, Andre | We propose a realistic scheme for the full characterization of Floquet topological insulators realized in optical lattices. | Session 160: Topological States in AMO Systems |
| 2064 | Instantons Emerging from Quench Dynamics of One-dimensional Systems | Ho, Tin-Lun; Li, Cheng | In the talk, we shall address the relation between the instantons and the quench dynamics which is determined by the initial state and the Hamiltonian. | Session 160: Topological States in AMO Systems |
| 2065 | Robustness of Floquet Topology to Temporal Noise | Timms, Christopher; Ge, Rongchun; Kolodrubetz, Michael | We consider a more disruptive perturbation, adding temporal noise to each of the Floquet cycles to break the time periodicity. | Session 160: Topological States in AMO Systems |
| 2066 | Dynamical quantum phase transitions in U(1) quantum link models | Huang, Yi-Ping; Banerjee, Debasish; Heyl, Markus | We study the non-equilibrium quench dynamics for two representative cases, U(1)quantum link models in (1+1)d and (2+1)d, through the lens of dynamical quantum phase transitions. | Session 160: Topological States in AMO Systems |
| 2067 | Quench dynamics for a two-dimensional two-band model starting with a topological initial state | Chen, Xin; Wang, Ce; Yu, Jinlong | We discuss the dynamical process of a two-dimensional two-band system starting with a topologically nontrivial initial state, with a nonzero Chern number c i, evolved by a post-quench Hamiltonian with Chern number c f. | Session 160: Topological States in AMO Systems |
| 2068 | 1D Localization-Delocalization Physics and Toroidal Representations of Transfer Matrices | Padavic, Karmela; Hegde, Suraj; Vishveshwara, Smitha | We study the quasiperiodic Aubry-Andre-Harper (AAH) model, known to exhibit a unique localization-delocalization transition in one dimensions, defying standard Anderson localization. | Session 160: Topological States in AMO Systems |
| 2069 | Topological Marker Currents in Chern Insulators | Caio, Marcello Davide; M�ller, Gunnar; Cooper, Nigel; Bhaseen, Joe | In equilibrium, we show that the topological marker can be used to extract the critical behavior of topological phase transitions. | Session 160: Topological States in AMO Systems |
| 2070 | Anyon fusion spaces with polar molecules | Covey, Jacob; Albert, Victor; Aasen, David; Alicea, Jason; Endres, Manuel | We derive an infinite family of equivalences between fusion-tree Hilbert spaces of certain su(2) level-k anyons and atomic ladders constrained by an excitation blockade. | Session 160: Topological States in AMO Systems |
| 2071 | Geometric phases enable real-world models of classical and quantum dynamics in Hall effects and in three-body molecular dynamics | Lin, F. J. | A quantum extension describes the quantum dynamics of topological matter and the three-body molecular dynamics in the Born-Oppenheimer approximation. | Session 160: Topological States in AMO Systems |
| 2072 | Topological phases in 1D bosonic Bogoliubov bands with dynamical instability | Ohashi, Terumichi; Kobayashi, Shingo; Kawaguchi, Yuki | As concrete examples, we discuss topological properties in a 1D Kitaev model [4] and in a 1D SSH model. | Session 160: Topological States in AMO Systems |
| 2073 | Higher Order Topological Phases: Quadrupoles, Meta-materials, and Beyond | Hughes, Taylor | In this talk we present a new class of phases of matter called higher-order topological phases. | Session 160: Topological States in AMO Systems |
| 2074 | Topologically Protected Photonic Modes in Composite Quantum Hall/Quantum Spin Hall Waveguides | Ma, Shukai; Xiao, Bo; Yu, Yang; Lai, Kueifu; Shvets, Gennady; Anlage, Steven | As an example of their novel properties, we demonstrate a full 4-port circulator based on composite QH and QSH back-scattering free waveguides. | Session 160: Topological States in AMO Systems |
| 2075 | Interacting Hall Response in Quantum Gas Experiments | Greschner, Sebastian; Filippone, Michele; Giamarchi, Thierry | We compare different methods for the computation of the static Hall coefficient and discuss its dependence on the various methods or limits considered. | Session 160: Topological States in AMO Systems |
| 2076 | Higher Order Floquet Topological Insulators with Anomalous Corner States | Huang, Biao; Liu, W.Vincent | Here, we report a Floquet-driven model showing the anomalous corner states and a construction of dynamical topological invariant built upon evolution operators $ U(t) $. | Session 160: Topological States in AMO Systems |
| 2077 | Topological states and anomalous localization in non-Hermitian systems | Martinez Alvarez, V�ctor; Rodriguez-Mena, Esteban; Foa Torres, Luis | Here we focus on recent results challenging the usual viewpoint, the occurrence of higher-order exceptional points where a macroscopic fraction of the states coalesce at a single point with a geometrical multiplicity of one [2] and where the the system becomes devoid of extended states [2]. | Session 160: Topological States in AMO Systems |
| 2078 | Non-Hermitian adiabatic transport in the space of exceptional points | Hoeller, Judith; Read, Nicholas; Harris, Jack | We show that smooth variations of parameters during time T, along a loop within that space, can single out one state that is least dissipative and evolves adiabatically. | Session 160: Topological States in AMO Systems |
| 2079 | Topological symmetry classes for non-Hermitian models and connections to the bosonic Bogoliubov�de Gennes equation | Lieu, Simon | We propose that these symmetries are relevant for the topological classification of non-Hermitian single-particle Hamiltonians and Hermitian bosonic Bogoliubov�de Gennes (BdG) models. | Session 160: Topological States in AMO Systems |
| 2080 | Stability of Non-Hermitian Phases | Borgnia, Dan | This work uses known results in the theory of psuedo-spectra and Jordan Normal Forms to detail the stability of novel non-Hermitian phases under different disorder profiles in 1D with some generalizations into higher dimensions. | Session 160: Topological States in AMO Systems |
| 2081 | Topological charge pumping in the interacting bosonic Rice-Mele model | Hayward, Andrew; Schweizer, Christian; Lohse, Michael; Aidelsburger, Monika; Heidrich-Meisner, Fabian | We discuss our recent work [1] investigating charge pumping in the Bosonic Rice-Mele model and verify that the charge pumping remains quantized as long as the pump cycle avoids the superfluid phase. | Session 160: Topological States in AMO Systems |
| 2082 | Topologically robust defect states in two-fold $\mathcal{PT}$-symmetric systems | Choi, Sang-Jun; Ryu, Jung-Wan; Park, Hee Chul | Here, we find that at the boundary where two topologically trivial insulating system meets, a robust localized state can appear. | Session 160: Topological States in AMO Systems |
| 2083 | Topological insulators in synthetic dimensions | Long, David; Crowley, Philip; Martin, Ivar; Chandran, Anushya | I will discuss how a qubit driven by two tones realizes a topological insulator in frequency space and identify the symmetry protecting the insulator. | Session 160: Topological States in AMO Systems |
| 2084 | Interaction-induced multivaluedness and topological change between quantum current and its variance | Chien, Chih-Chun; Metcalf, Mekena; Lai, Chen-Yen; Di Ventra, Massimiliano | We consider a benzene-like lattice with fermions driven by a magnetic flux for the isolated system and a three-site lattice connected driven by two particle reservoirs for the open system. | Session 160: Topological States in AMO Systems |
| 2085 | Order-from-disorder effects and Zeeman field tuned quantum phase transitions in a bosonic quantum anomalous Hall system | Sun, Fadi; Ye, Jinwu | We study possible many body phenomena in the recent experimentally realized weakly interacting quantum anomalous Hall system of spinor bosons by Wu, et.al, Science 354, 83-88 (2016). | Session 160: Topological States in AMO Systems |
| 2086 | Critical Spin Liquid versus Valence Bond Glass in Triangular Lattice Organic ?-(ET)2Cu2(CN)3 | Riedl, Kira; Valenti, Roser; Winter, Stephen | Through microscopic analysis of all anisotropic contributions, including Dzyaloshinskii-Moriya and multi-spin scalar chiral interactions, we highlight significant deviations of the experimental observations from a quantum critical scenario. | Session 161: Spin Liquids: Theory and Experiment |
| 2087 | Charge Order without Spin Order in the Layered Frustrated Magnet ?-(BEDT-TTF)2Hg(SCN)2Cl | Le, Teresa; Pustogow, Andrej; Wang, Hsin-Hua; Luo, Yongkang; Gati, Elena; Lang, Michael; Brown, Stuart | To investigate the interplay between charge order (which may affect the frustration) and magnetic order, we use 1H NMR spectroscopy to examine the magnetic properties of ?-(BEDT-TTF) 2Hg(SCN) 2Cl, which exhibits a first-order metal-insulator transition to a charge ordered state at TCO = 30K. | Session 161: Spin Liquids: Theory and Experiment |
| 2088 | Quantum valence bond ice and its relation to ?-H3(Cat-EDT-TTF)2 | Yamada, Masahiko; Tada, Yasuhiro | Motivated by the discovery of the coexistence of unfrozen spin and dipole fluctuations in an organic quantum spin liquid called ?-H 3(Cat-EDT-TTF) 2 [1], we propose a new asymptotically solvable model, where a quantum spin liquid (resonating valence bond) state is accompanied by quantum proton motion, which we name quantum valence bond ice. | Session 161: Spin Liquids: Theory and Experiment |
| 2089 | Effect of randomness on spin excitations in quantum spin liquid state of 1T-TaS2 | Murayama, Hinako; Sato, Yuki; Taniguchi, Tomoya; Kurihara, Ryo; xing, xiangzhuo; Kasahara, Shigeru; Kasahara, Yuichi; Yoshida, Masaro; Iwasa, Yoshihiro; Konczykowski, Marcin; Matsuda, Yuji | To study the effect of randomness on the QSL state, we performed thermal conductivity and specific heat measurements on pure, Se-doped and electron irradiated 1T-TaS 2. | Session 161: Spin Liquids: Theory and Experiment |
| 2090 | Spin-Liquid-Like State in the Triangular Lattice Antiferromagnet TbInO3 | Kim, Min Gyu; Winn, Barry; Chi, Songxue; Savici, Andrei; Rodriguez, Jose; Li, Yanbin; Xu, Xianghan; Kim, Jae Wook; Cheong, Sang-Wook; Kiryukhin, Valery | Unpolarized and polarized inelastic neutron scattering studies in single crystals of the triangular-lattice (TL) antiferromagnets TbInO 3 and TbIn 0.95Mn 0.05O 3 are reported. | Session 161: Spin Liquids: Theory and Experiment |
| 2091 | Spin Dynamics of the Elemental Quantum Spin Liquid ?-Mn | Paddison, Joseph; Stewart, Ross | We present neutron-scattering measurements of the spin dynamics of ?-Mn over a wide range of momentum transfer, energy transfer, and temperature. | Session 161: Spin Liquids: Theory and Experiment |
| 2092 | Dynamical spin structure factor from a variational Monte Carlo perspective | Becca, Federico | Here, an excellent description of both the gapless and gapped (dimerized) phases is obtained [1]. | Session 161: Spin Liquids: Theory and Experiment |
| 2093 | Spinon resonance of two-dimensional U(1) spin liquids with Fermi surface. | Starykh, Oleg; Balents, Leon | We investigate signatures of spin liquids with spinon Fermi surfaces in electron spin resonance experiments. | Session 161: Spin Liquids: Theory and Experiment |
| 2094 | Phenomenological Theory of Coulombic Quantum Spin Liquids | Lee, Sangjin; Moon, Eun-Gook; Lee, SungBin | In this study, we present a phenomenological theory of C-QSLs and their phase transitions in the extended Landau paradigm. | Session 161: Spin Liquids: Theory and Experiment |
| 2095 | Classical and quantum phases of the J1-J2-J3 Heisenberg model on the body centered cubic lattice | Ghosh, Pratyay; M�ller, Tobias; R�ck, Marlon; Toldin, Francesco; Narayanan, Rajesh; Thomale, Ronny; Reuther, Johannes; Iqbal, Yasir | We present the global phase diagram of the Heisenberg model on the body-centered cubic (BCC) lattice with nearest-neighbor J 1, second nearest-neighbor J 2 and third nearest-neighbor J 3 exchange couplings, for both antiferromagnetic and ferromagnetic J 1, J 2, and J 3. | Session 161: Spin Liquids: Theory and Experiment |
| 2096 | Control of Magnetic and Topological Orders with a DC Electric Field | Takasan, Kazuaki; Sato, Masahiro | In this talk, we present our theoretical proposal which provides a new route to control magnetic and topological orders in a broad class of insulating magnets with a DC electric field [1]. | Session 161: Spin Liquids: Theory and Experiment |
| 2097 | Construction of matrix product state for the Gutwiller projected variational wavefunctions | Mohammadaghaei, Amir; Bauer, Bela; Shtengel, Kirill; Mishmash, Ryan | In this work, we examine a different method by exploring the possibility of constructing a matrix product state (MPS) representation for a Gutzwiller-projected state from two given MPS representations of gaussian fermionic theories. | Session 161: Spin Liquids: Theory and Experiment |
| 2098 | Bridging partons and coupled-wire approaches to quantum spin liquids. | Leviatan, Eyal; Mross, David | I will compare and contrast this approach to the popular parton-construction, and highlight the respective advantages. | Session 161: Spin Liquids: Theory and Experiment |
| 2099 | Thermodynamic properties of the Shastry-Sutherland model from quantum Monte Carlo simulations | Honecker, Andreas; Niesen, Ido; Stapmanns, Jonas; Normand, Bruce; Mila, Frederic; Corboz, Philippe; Wessel, Stefan | We investigate the minus-sign problem that afflicts quantum Monte Carlo (QMC) simulations of frustrated quantum spin systems, focusing on spin S=1/2, two spatial dimensions, and the extended Shastry-Sutherland model. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2100 | Thermal Critical Points and Quantum Critical End Point in the Frustrated Bilayer Heisenberg Antiferromagnet | Stapmanns, Jonas; Corboz, Philippe; Mila, Frederic; Honecker, Andreas; Normand, Bruce; Wessel, Stefan | We present a quantum Monte Carlo scheme for the simulation of frustrated quantum magnets that allows us to reduce or even eliminate the spin-problem for several dimerized quantum spin systems. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2101 | Dimers on the checkerboard: model, partition sum, and correlations | Seidel, Alexander; Wildeboer, Julia | We present analytic results on a special dimer model on the {\em non-bipartite} checkerboard that does not allow for parallel dimers surrounding diagonal links. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2102 | Semiclassical Analysis of Quantum Dimer Models | Goldstein, Garry; Castelnovo, Claudio; Kotliar, Gabriel; Tsvelik, Alexei | We use the slave boson approach to develop the semiclassical description of the Rokshar Kivelson square lattice quantum dimer model, which allows a 1/S expansion. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2103 | Quantum Order-By-Disorder in Frustrated Spin Nanotube Models | Chandra, Premala; Coleman, Piers; Orth, Peter; Sondhi, Shivaji | We show that as a function of the ratio of the frustrated bond couplings, wrapped magnets develop quantum phase transitions into states with nematic spin orders. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2104 | Magnetization Process of the Triangular- and Kagome-Lattice Antiferromagnets | Sakai, Toru; Nakano, Hiroki | The S = 1/2 kagome- and triangular-lattice Heisenberg antiferromagnets are investigated under a magnetic field using the numerical-diagonalization method[1]. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2105 | Uncovering anisotropic magnetic phases via fast dimensionality analysis | Karigerasi, Manohar; Wagner, Lucas; Shoemaker, Daniel | We present specific cases where the predictor identifies compounds that should exhibit competition between 1D and 2D interactions, and how the predictor can be used to identify sparsely populated regions of chemical space with as-yet-unexplored topologies of specific 3d magnetic cations. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2106 | Antiferromagnetic Stripe Order in NaFe1-xCuxAs Single Crystals | Xin, Yizhou; Lee, Jeongseop; Stolt, Ingrid; Halperin, William; Song, Yu; Dai, Pengcheng; Cao, Chongde; Reyes, Arneil | We present our 23Na and 75As NMR study of the over-doped pnictide NaFe 1-xCu xAs, which has been demonstrated to be a possible Mott insulator near x ? 0.5 [1,2]. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2107 | Tuning Magnetic Order with Iron Intercalation in Transition Metal Dichalcogenides | John, Caolan; Doyle, Spencer; Maniv, Eran | I will present magnetization and thermodynamic measurements that indicate precise control of this introduced magnetic order in iron intercalated NbS 2, with antiferromagnetic order being established at iron intercalation values above x = 1/3 in Fe xNbS 2. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2108 | Magnetization plateaus in Tb2SrFe2O7 | Cao, Huibo; Wu, Yan; Tian, Wei; Kim, Jae-Wook; Cheong, Sang-Wook | In this presentation, I will show the evolution of the spin structure with temperature and magnetic field and disclose the nature of the magnetization plateaus in Tb 2SrFe 2O 7. | Session 162: Spin Dimers in a Frustrated Lattice and Other Systems |
| 2109 | Field-induced transitions from superconductors to Bose metal in La1.875Ba0.125CuO4 | Tranquada, John; Li, Yangmu; Gu, Genda; Li, Qiang; Tsvelik, Alexei; Terzic, Jasminka; Baity, Paul; Popovic, Dragana | We have studied this problem in LBCO x=1/8, where 2D superconductivity appears below 40 K, but 3D order only occurs below 5 K, presumably due to pair-density-wave order intertwined with the spin- and charge-stripe orders. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2110 | The Valence Transition Model of Pseudogap, Charge-Order and Superconductivity in Electron- and Hole-Doped Copper Oxides. | Mazumdar, Sumitendra | I propose an integrated theoretical approach to spatial broken symmetries and superconductivity in electron- and hole-doped cuprates, as well as many other strongly correlated systems [1]. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2111 | The Effect of Uniaxial Pressure on the High-Temperature Superconductor YBa2Cu3O7?x | Barber, Mark; Loew, Toshinao; Kim, Hun-ho; Konczykowski, Marcin; Keimer, Bernhard; Mackenzie, Andrew; Hicks, Clifford | Using GaAs-based Hall probe susceptometers, we have investigated the strain dependence of ?1/8-doped YBCO with high spatial precision, up to pressures of at least 1.5 GPa, crossing the transition into long-range CDW order. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2112 | Investigations of the pseudogap phase in overdoped Bi2+xSr2?xCaCu2O8+? with ?SR | Gheidi, Shayan; Akintola, Kolawole; Cote, Andre; Fang, Alex; Dunsiger, Sarah; Sonier, Jeff | In an attempt to circumvent this limitation, we have carried out sensitive muon Knight-shift and new zero-field muon spin relaxation (ZF-�SR) measurements of overdoped Bi2212. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2113 | Magnetic Excitations in Highly Underdoped Superconducting HgBa2CuO4+? | Anderson, Zachary; Tang, Yang; Nagarajan, Vikram; Chan, Mun; Dorow, Chelsey; Yu, Guichuan; Abernathy, Douglas; Christianson, Andrew; Mangin-Thro, Lucile; Steffens, Paul; Sidis, Yvan; Bourges, Philippe; Greven, Martin | Here we present our recent inelastic neutron scattering measurements of the AF excitations in heavily underdoped Hg1201. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2114 | Tracing the origin of charge density waves in cuprates | Lyzwa, Fryderyk; Orlita, Milan; Xu, Bing; Bernhard, Christian | Here we aim to search for the origin of this CDW, its role in the pseudogap phenomenology and its relationship with superconductivity (competing or interwined order). | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2115 | Charge density wave energy scale in superconducting cuprates | Loret, Bastien; Gallais, Yann; Cazayous, Maximilien; Forget, Anne; Colson, Doroth�e; Julien, Marc-Henri; Paul, Indranil; Civelli, Marcello; Sacuto, Alain | We will report the extraction of ? CDW for several cuprates using electronic Raman spectroscopy [3]. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2116 | Large negative thermal Hall response in the pseudogap phase of cuprates | Grissonnanche, Gael; Legros, Anaelle; Badoux, Sven; Lefrancois, �tienne; Zatko, Victor; Lizaire, Maude; Laliberte, Francis; Gourgout, Adrien; Zhou, Jianshi; Pyon, Sunseng; Takayama, Tomohiro; Takagi, Hidenori; Ono, Shimpei; Doiron-Leyraud, Nicolas; Taillefer, Louis | We report extensive measurements of the thermal Hall conductivity ? xy in several families of cuprates across a wide range of dopings. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2117 | Pressure induced suppression of the Pseudogap in the cuprate superconductor Nd-LSCO probed by thermoelectric measurements | Gourgout, Adrien; Ataei, Amirreza; Boulanger, Marie-Eve; Badoux, Sven; Graf, David; Zhou, Jianshi; Doiron-Leyraud, Nicolas; Taillefer, Louis | Here we present a confirmation of these results, by means of Seebeck and Nernst effect measurements under pressure up to 2GPa and in magnetic fields up to 31.2T. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2118 | Interwined orders in the ground state of the Emery model in the underdoped regime | Vitali, Ettore; Zhang, Shiwei; Chiciak, Adam | We perform extensive Auxiliary-Field Quantum Monte Carlo (AFQMC) calculations for the three-band Hubbard (Emery) model in the underdoped regime, in order to study the ground-state properties of Copper-Oxygen planes in the cuprates. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2119 | Coexistence of Superconductivity and Antiferromagnetism in the Hubbard model for cuprates | Foley, Alexandre; Verret, Simon; Tremblay, Andre-Marie; Senechal, David | Using cellular dynamical mean-field theory (CDMFT) for the Hubbard model, we revisit the question of the coexistence and competition of these phases in the one-band Hubbard model with realistic band parameters and interaction strengths. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2120 | Superconducting phase fluctuations and gap-filling phenomenology in the underdoped cuprates | Sulangi, Miguel Antonio; Zaanen, Jan | We revisit the role of superconducting phase fluctuations in the cuprates as probed by various spectroscopic methods. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2121 | Ultrasonic study of La-based high-Tc superconductor under high magnetic field | Frachet, Mehdi; LeBoeuf, David; Benhabib, Siham; proust, cyril; debray, j�r�me; Vignolle, Baptiste; Kurosawa, Tohru; Momono, Naoki | In order to further investigate the relationship between magnetism and superconductivity we have performed measurements of ultrasonic velocity and attenuation in LSCO. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2122 | Electroplated Rhenium – A new high-enough Tc material8 | Pappas, David; Lake, Russell; Bal, Mustafa; McRae, Corey Rae; Goldfarb, Ronald; David, Donald; Long, Junling; Plourde, Britton; Kim, Eunja; Hite, Dustin; Pappas, Lee; Arslan, Ilke; Wu, Xian; huang, qiang; Ku, Hsiang-Sheng; Roshko, Alexana; Wen, Jianguo | We show that Re films, which normally have T c in the range of 1.8-3 K, have a superconducting critical temperature of approximately 6 K when electroplated from aqueous solutions. | Session 163: Superconductivity: Copper Oxide – Pseudogap |
| 2123 | InSb Nanowires for Quantum Devices | Badawy, Ghada; Gazibegovic, Sasa; Heedt, Sebastian; Borsoi, Francesco; Koelling, Sebastian; Verheijen, Marcel; Kouwenhoven, Leo; Bakkers, Erik | Here, we report growth of pure zinc blende InSb nanowires tens of microns long. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2124 | In-plane Selective Area InSb Networks for Scalable Majorana Devices | Op het Veld, Roy; Xu, Di; Verheijen, Marcel; Pendharkar, Mihir; Lee, Joon Sue; Peters, Stan; Koelling, Sebastian; Kouwenhoven, Leo; Palmstrom, Chris; Zhang, Hao; Bakkers, Erik | Here we show In-plane Selective Area Networks (InSANe) of InSb nanowires grown catalyst free with a high crystal quality. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2125 | Fabrication and Characterization of Template-Defined Scalable InAs Nanowire Networks | Cerveny, Kristopher; Friedl, Martin; Patlatiuk, Taras; Scheller, Christian; Dirscherl, Lorin; Dede, Didem; Fontcuberta i Morral, Anna; Zumbuhl, Dominik | Here, we report recent results on templated InAs nanowire networks grown on GaAs nanomembranes [1]. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2126 | Scalable quantum photonics using quantum dots | Waks, Edo | In this talk I will describe an experimental realization of strong interactions between single photons mediated by a single electron trapped in a quantum dot. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2127 | Improved control of quantum dots in Ge/SiGe quantum wells for spin qubit applications | Hardy, Will; Su, Yi-Hsin; Chuang, Yen; Maurer, Leon; Brickson, Mitchell; Baczewski, Andrew; Li, Jiun-Yun; Lu, Tzu-Ming; Luhman, Dwight | We take the next steps toward hole spin qubits by preparing a double quantum dot in a one-layer gate structure,then using multilayer gate stacks to demonstrate improved quantum dot control. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2128 | A solvable quantum model of dynamic nuclear polarization in quantum dots | Nutz, Thomas; Barnes, Edwin; Economou, Sophia | We present a quantum mechanical theory of optically induced DNP applicable to quantum dots and other interacting spin systems. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2129 | Plasmon mediated quantum communication between quantum dot clouds | Yadav, Ravindra; Otten, Matthew; Wang, Weijia; Gray, Stephen; Gosztola, D. J.; Wiederrecht, Gary; Odom, Teri; Basu, Jaydeep | We report experimental and theoretical studies of the interaction of a quantum dot (QD) cloud [1] with a remote QD cloud mediated by surface lattice resonances (SLR) in two dimensional array of plasmonic nanoparticles[2]. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2130 | Simulating topological insulators with donors and quantum dots | Le, Nguyen; Fisher, Andrew; Ginossar, Eran | We explore the possibilities of simulating the Su-Schrieffer�Heeger (SSH) model of topological insulators with a one dimensional chain of donors or quantum dots. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2131 | Kitaev chain with a quantum dot | Zeng, Chuanchang; Moore, Christopher; Rao, Apparao; Stanescu, Tudor; Tewari, Sumanta | We solve analytically the problem of a finite length Kitaev chain coupled to a quantum dot (QD), which extends the standard Kitaev chain problem making it more closely related to the quantum dot-semiconductor-superconductor (QD-SM-SC) nanowire heterostructure that is currently under intense investigation for possible occurrence of Majorana zero modes (MZMs). | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2132 | Simple and Re-useable Flip-Chip Method for Hybrid Quantum Sytems | Conner, Christopher; Satzinger, Kevin; Zhong, Youpeng; Chang, Hung-Shen; Peairs, Gregory; Bienfait, Audrey; Chou, Ming-Han; Cleland, Agnetta; Dumur, Etienne; Grebel, Joel; Povey, Rhys; Whiteley, Samuel; Awschalom, David; Schuster, David; Cleland, Andrew | Here, we describe a simple, low cost, non-galvanic approach to flip-chip bonding, demonstrated using superconducting qubits coupled to other quantum systems, including acoustic and electromagnetic resonators. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2133 | High Temperature Superconducting nano-meanders made by ion irradiation | Amari, Paul; Feuillet-Palma, C; Cou�do, Fran�ois; Bergeal, Nicolas; Lesueur, J | We report the fabrication of YBa 2Cu 3O 7-x nano-meanders showing the highest aspect ratios ever reported so far (30nm thick, 100nm wide, 450?m long) by e-beam lithography and high-energy ion implantation [Amari et al. | Session 164: Materials for Quantum Information Science — Engineering Quantum States |
| 2134 | The role of electron-electron interactions in the paired-to-nematic transition | Csathy, Gabor | Here we provide evidence of a similar quantum phase transition at filling factor ?=7/2 and discuss the role of the hydrostatic pressure in driving the transition. | Session 165: Pairing and Nematicity in Half-filled Landau Levels |
| 2135 | Even-denominator fractional quantum Hall states in bilayer graphene | Dean, Cory | Even-denominator fractional quantum Hall states in bilayer graphene | Session 165: Pairing and Nematicity in Half-filled Landau Levels |
| 2136 | Competing correlated phases in orbitally mixed half-filled Landau levels | Falson, Joseph | Here, I will present data taken on state-of-the-art MgZnO/ZnO heterostructures that offer the ability to tune N while remaining at a constant Landau level filling. | Session 165: Pairing and Nematicity in Half-filled Landau Levels |
| 2137 | Competing charge density waves probed by non-linear transport and noise in the second and third Landau levels | Gervais, Guillaume | In this talk, I will present our results [1] concerning the competition of CDWs and FQH in the second and third LL of an ultra-high mobility GaAs/AlGaAs 2DEG, as probed by both non-linear electronic transport and noise measurements. | Session 165: Pairing and Nematicity in Half-filled Landau Levels |
| 2138 | Energy, Momentum, and Spin-resolved tunneling spectra of quantum Hall systems | Yoo, Heun Mo; Jang, Joonho; Pfeiffer, Loren; Baldwin, Kirk; West, Kenneth; Ashoori, Raymond | Here, we introduce a novel contactless pulsed tunneling technique that can visualize the energy, momentum, and spin-resolved electronic structure of a quantum Hall effect system. | Session 165: Pairing and Nematicity in Half-filled Landau Levels |
| 2139 | The Electronic Transport Properties of Silicon Meta-lattice Made by High Pressure CVD | Huang, ZhaoHui; Crespi, Vincent H. | We employ a tight-binding method to quantitatively look into the impact of geometry. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2140 | Observation of Exposed and Hidden Au Quantum Well States in Au/Ag Heterostructures | Lu, Qiangsheng; Bian, Guang | In this work, atomically uniform Au films are grown on a Ag(111) thin film. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2141 | On the formation of suspended double-stranded atomic chains | Sabater, Carlos; Palacios, Juan; Caturla, Mar�a Jos�; Untiedt, Carlos | Here we report on the identification of double-stranded atomic chains formed on Au using a Scanning Tunneling Microscope. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2142 | Universal Conductance Fluctuation in Sierpinski Carpet | Han, Yulei; Xu, Fumng; Qiao, Zhenhua | We report a theoretical investigation on conductance fluctuation of disordered two-terminal device in Sierpinski carpet. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2143 | Experimental demonstration of nanoelectronics below 1 mK electron temperature | Yurttag�l, Nikolai; Sarsby, Matthew; Geresdi, Attila | By performing the nuclear demagnetization process, we demonstrate electron temperatures below 500 ?K by primary electron thermometry, and show that the device stays below 1 mK for several days. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2144 | Trapped Ion Heating from Correlated Motion of Electrode Adsorbates | Lordi, Vincenzo; Ray, Keith; Kim, Changeun; Foulon, Benjamin; Rubenstein, Brenda | In this work, we combine first-principles electronic structure calculations, molecular dynamics simulations, and master equations to explore the role of high densities of adsorbed molecules on the electrode surface as a potential source of trapped ion heating. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2145 | Toward 2D Fermi-Hubbard Quantum Simulation with and Oxide Nanoelectronic Platform | Hao, Shan; Li, Jianan; Tang, Yuhe; Nethwewala, Aditi; Hu, Yang; Lee, Hyungwoo; Lee, Jungwoo; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | Here we describe efforts to create various 2D lattice structures, and investigate their properties at low temperatures and high magnetic fields. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2146 | Charge transfer, orbital polarization, and magnetism of (LaCoO3)n+(LaTiO3)n (n=1,2) superlattice | Lee, Alex; Ismail-Beigi, Sohrab | We will describe the energetic stability of HS versus LS and its U dependence, the magnetic ordering of the HS and LS ground states, how antiferromagnetic and ferromagnetic superexchange interactions underlie the computed orderings. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2147 | Doping dependence of phonon anomalies in (Bi,Pb)2(Sr,La)2CuO6 revealed by inelastic X-ray scattering | Peng, Yingying; Husain, Ali; Lee, Sangjun; Alatas, Ahmet; Krongchon, Kittihat; Sun, Xiaolan; Said, Ayman; Ding, Ying; Zhou, Xingjiang; Wagner, Lucas; Abbamonte, Peter | We observe that the longitudinal acoustic phonon along the Cu-O bond direction exhibits a line-shape broadening near the wave vector ~ 0.25 rlu in underdoped samples even when charge order is suppressed, while no broadening occurs in the overdoped samples. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2148 | High Tc Superconductor-Half metallic ferromagnet planar devices | D’Ambrosio, Sophie; Mesoraca, Salvatore; Palermo, Xavier; Balan, Adrian; S�nchez-Manzano, David; Cuellar, Fabian; Ulysse, Christian; Vila, Laurent; Bergeal, Nicolas; Lesueur, J�rome; Sander, Anke; Santamaria, Jacobo; Villegas, Javier | We will describe here various top-bottom approaches we have developed ad hoc to fabricate oxide planar S/F nanodevices, which are a combination of Pulsed Laser Deposition, Electron Beam Lithography and Ion Beam Etching. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2149 | The Formation of Wannier Mott-Frenkel Hybrid Excitonic Polariton In Different Heterostructures | Facemyer, David; Nguyen, Que Huong | In this work, we consider a strong coupling of the hybrid excitons and photons near excitonic resonance analytically with the purpose of determining the electronic structure, energy, and dispersion relation of the hybrid exciton-polariton. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2150 | X-ray Optics Fabrication Using Unorthodox Approaches | Sanli, Umut; Baluktsian, Margarita; Ceylan, Hakan; Sitti, Metin; Weigand, Markus; Schuetz, Gisela; Keskinbora, Kahraman | In another approach, we took advantage of 2PP and fabricated high aspect ratio diffractive/refractive kinoforms out of low-loss polymeric materials for the first time. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2151 | Observation of Bulk Polarization Transitions and Second-Order Acoustic Corner States Protected by Generalized Chiral Symmetry | Ni, Xiang; Weiner, Matthew; Alu, Andrea; Khanikaev, Alexander | Here, we introduce and measure topological bulk polarization in 3D printed two-dimensional acoustic meta-structures, and observe topological transitions as the design parameters are tuned. | Session 166: Nanostructures, Heterostructures and other Artificially Structured Materials |
| 2152 | Quantum transport in ultra-thin topological crystalline insulator films | Albright, Stephen; Walker, Frederick; Ahn, Charles | This work presents structural and electronic characterization of ultra-thin SnTe films, down to 5nm, grown by molecular beam epitaxy on SrTiO 3 substrates. | Session 167: Topological Materials — Thin Films |
| 2153 | Suppression of the Spectral Weight of Topological Surface States on the Nanoscale via Local Symmetry Breaking | Dagdeviren, Omur; Mandal, Subhasish; Zou, Ke; Zhou, Chao; Simon, Georg; Albright, Stephen; Ismail-Beigi, Sohrab; Walker, Frederick; Ahn, Charles; Schwarz, Udo; Altman, Eric | Here, We show using scanning tunneling microscopy/spectroscopy that defects that break local mirror symmetry of SnTe suppress electron tunneling over an energy range as large as the bulk band gap, an order of magnitude larger than that produced globally via magnetic fields or uniform structural perturbations [1]. | Session 167: Topological Materials — Thin Films |
| 2154 | Suppressing metallicity of topological insulator GdBi thin films by quantum confinement | Inoue, Hisashi; Han, Minyong; Hu, Mengli; Suzuki, Takehito; Fu, Liang; Liu, Junwei; Checkelsky, Joseph | Here we show via electrical transport measurements that quantum confinement can suppress the band overlap in GdBi thin films. | Session 167: Topological Materials — Thin Films |
| 2155 | Growth and Characterization of Antiferromagnetic Rare-earth Bismuth thin films | Han, Minyong; Inoue, Hisashi; Hu, Mengli; Suzuki, Takehito; Fu, Liang; Liu, Junwei; Checkelsky, Joseph | Here we report the first successful realization and characterization of GdBi (111) films grown on BaF2 substrates with Molecular Beam Epitaxy. GdBi, in a bulk form, is a semimetal with type-II antiferromagnetic (AFM) order below TN,bulk = 28 K. | Session 167: Topological Materials — Thin Films |
| 2156 | Nanoscale Synthesis and Characterization of Topological Materials | Zeljkovic, Ilija | In this talk, I will discuss how we use a combination of molecular beam epitaxy and scanning tunneling microscopy/spectroscopy to study topological insulators grown on high-T c superconductors Fe(Te,Se) and Bi 2Sr 2CaCu 2O 8+x. On the surface of Bi 2Te 3 grown on Fe(Te,Se), we detect ? ind as high as ~3.5 meV, which is the largest reported gap induced by proximity to an s-wave superconductor to-date. | Session 167: Topological Materials — Thin Films |
| 2157 | In-situ analysis of MBE-grown ZrTe5 thin films | Pillsbury, Timothy; Richardella, Anthony; Li, Yanan; Samarth, Nitin | To help elucidate the nature of the topological properties of ZrTe 5 and achieve a large band-gap QSHI, we have grown epitaxial thin films under ultra-high vacuum using molecular beam epitaxy (MBE) and performed in-vacuo analysis using ARPES and STM to confirm the growth quality and analyze the band structure, laying the groundwork for future MBE studies that utilize strain engineering to study the strong to weak TI transition and the observation of a large gap QSHI. | Session 167: Topological Materials — Thin Films |
| 2158 | Remote Doping of Sb Quantum Wells with Te | O’Toole, Ryan; Wickramasinghe, Kaushini; Mishima, Tetsuya; Santos, Michael | Our goal is to study the transport properties of the topological states by suppressing the bulk conductivity through quantum confinement and enhancing the surface conductivity through remote n-type doping. | Session 167: Topological Materials — Thin Films |
| 2159 | Nanoscale strain induced effects on the optoelectronic properties of monolayer transition metal dichalcogenides. | Teague, Marcus; Wang, Jiaqing; Lin, Wei-Hsiang; Hao, Duxing; Hsu, Chen-Chih; Yeh, Nai-Chang | We perform simulations and scanning tunneling spectroscopic (STS) studies of the strain effects on the optoelectronic properties of monolayer TMDC materials MS 2, where M = Mo and W. | Session 167: Topological Materials — Thin Films |
| 2160 | Electrical Transport Study in Wafer Scale Epitaxial WTe2 Film Grown by Molecular Beam Epitaxy | Tran, Jason; Li, Junxue; Horowitz, Justin; Shi, Jing; Wei, Peng | In this talk, we present our electrical transport studies in wafer scale WTe 2 grown on insulating sapphire substrate. | Session 167: Topological Materials — Thin Films |
| 2161 | Epitaxial growth and electronic properties of 2D topological insulator 1 WSe2 | Yan, Chenhui; Zhang, Huiming; Li, Lian | Here, we report the molecular beam epitaxial growth of monolayer 1T’ WSe 2 on epitaxial graphene/SiC(0001). | Session 167: Topological Materials — Thin Films |
| 2162 | Effect of epitaxial strain on topological properties of LaSb | Khalid, Shoaib; Sabino, Fernando; Janotti, Anderson | Using DFT with the HSE06 hybrid functional, we study the effects of epitaxial strain on the electronic properties of these rare-earth mono-pnictides. | Session 167: Topological Materials — Thin Films |
| 2163 | Electric Field Tuned Quantum Phase Transition from Topological to Conventional Insulator in Few-Layer Na3Bi | Collins, James; Tadich, Anton; Gomes, Lidia; Rodrigues, Jo�o; Hellerstedt, John; Liu, Chang; Ryu, Hyejin; Tang, Shujie; Wu, Weikang; Yang, Shengyuan; Adam, Shaffique; Mo, Sung-Kwan; Fuhrer, Michael; Edmonds, Mark | Here we demonstrate the growth of epitaxial few-layer Na 3Bi via MBE, and probe its electronic structure and response to an electric field using scanning probe microscopy/spectroscopy (STM/STS) and angle-resolved photoelectron spectroscopy, and compare with results from DFT. | Session 167: Topological Materials — Thin Films |
| 2164 | Pairfield fluctuations in the 2D Hubbard Model | Maier, Thomas; Scalapino, Douglas | Above this region, we find evidence that the pseudogap limits the growth of the local pairfield and provides an environment in which phase fluctuations determine the temperature dependence of the pairfield susceptibility. | Session 168: Superconductivity: Theory/Computational |
| 2165 | Superconducting symmetry of the extended Hubbard model below Tc | Marsiglio, Frank; Hutchinson, Joel | By examining the free energy functional of the gap in this model, we find that these symmetries are often dependent on temperature. | Session 168: Superconductivity: Theory/Computational |
| 2166 | An accurate indicator for unconventional superconductivity using charge-spin coupling | Rodrigues, Jo�o; Wagner, Lucas | A data-based prediction model for unconventional superconductivity is constructed, which has three ingredients: a layered crystal structure, stable local magnetic moments and an intermediate spin-orbital (as opposed to spin-orbit) coupling. | Session 168: Superconductivity: Theory/Computational |
| 2167 | Ground state phase diagram of doped Hubbard model on 4-leg cylinders | Jiang, Yifan; Devereaux, Thomas; Jiang, Hong-Chen | We report a large-scale density-matrix renormalization group study of the lightly doped Hubbard model on 4-leg cylinders in the presence of next-nearest hopping t’. | Session 168: Superconductivity: Theory/Computational |
| 2168 | Study of nodal gap in t-J model via renormalized mean field theory | Liu, YiHsuan; Tu, Wei-Lin; Lee, Ting-Kuo | In this work, we will discuss the mechanism of the gap formation and show the gap evolution upon doping. | Session 168: Superconductivity: Theory/Computational |
| 2169 | Single-hole wavefunction in two dimensions: A case study of the doped Mott insulator | Shuai, Chen | We study a ground-state ansatz for the single hole doped t-J model in two dimensions via a variational Monte Carlo method. | Session 168: Superconductivity: Theory/Computational |
| 2170 | Superconductivity in doping the quantum paramagnet on the square lattice | Jiang, Hong-Chen | We report a large-scale density-matrix renormalization group study of lightly doped t-J-type model on the square lattice, which hosts a quantum paramagnetic state at half-filling. | Session 168: Superconductivity: Theory/Computational |
| 2171 | Particle-hole fluctuation corrections to BCS theory via functional integral techniques | Protter, Mason; Boyack, Rufus; Marsiglio, Frank | We explore a functional-integral method for rigorously incorporating particle-hole fluctuation corrections to the BCS theory of superconductivity. | Session 168: Superconductivity: Theory/Computational |
| 2172 | Theoretical Study on Superconductor Properties for Penrose Lattices | Zhang, Yongyou; Yang, Fan | In this presentation, we sytematically studied the quasicrastal superconductor properties on Penrose lattices. | Session 168: Superconductivity: Theory/Computational |
| 2173 | Proximity induced superconductivity in quasicrystal-superconductor hybrid rings | Rai, Gautam; Jagannathan, Anuradha; Haas, Stephan | The hybrid system is modeled using the Bogoliubov-de Gennes approach, consists of a non-interacting Fibonacci chain coupled to a periodic superconductor. | Session 168: Superconductivity: Theory/Computational |
| 2174 | Bond disproportionation and electron-phonon driven oxygen-bismuth hybrid hole pairing in bismuth perovskites | Foyevtsova, Kateryna; Khazraie, Arash; Elfimov, Ilya; Sawatzky, George | In this talk, we will present the recently developed theory 1-3 describing the bismuth perovskites ABiO 3 ( A = Sr or Ba) as bond- (as opposed to charge-) disproportionated insulators where Bi-O hybridization and the presence of oxygen holes lead to formation of molecular orbitals and strong polaronic effects, which might be the prime mechanism driving these materials towards superconductivity upon doping. | Session 168: Superconductivity: Theory/Computational |
| 2175 | Pressure-enhanced high temperature superconductivity in XH3 (X=As, Se, Br, Sb, Te and I) | Chang, Po-Hao; Silayi, Swabir; Papaconstantopoulos, Dimitrios; Mehl, Michael | H3Se in particular, could potentially go to a T c well over 200 K. Finally, in addition to pressure enhanced electron-phonon coupling, by applying rigid band model we predict that a small amount of alloying with a neighboring element could lead to even further increase of T c | Session 168: Superconductivity: Theory/Computational |
| 2176 | First-principles evolutionary structural searches for new high-pressure phases of Nb3Al | Mao, Jianjun; Chen, Yue | Herein, we have combined evolutionary algorithms with density functional theory to perform structural searches for ground-state crystal structures of Nb 3Al under high pressures. | Session 168: Superconductivity: Theory/Computational |
| 2177 | Magnetism of the low-dimensional orbital-selective Mott insulators | Herbrych, Jacek; Heverhagen, Jonas; Daghofer, Maria; Alvarez, Gonzalo; Moreo, Adriana; Dagotto, Elbio | In our work [4,5] we show that the magnetic properties of the orbital-selective Mott phase can be properly described by (short-range) multiorbital Hubbard models. | Session 168: Superconductivity: Theory/Computational |
| 2178 | Hetero-crystals, a new type of composite alloys: a case study of the 1144-phase TM-phosphides and -arsenides. | Song, Boqun; Nguyen, Manh Cuong; Wang, Cai-Zhuang; Canfield, Paul; Ho, Kai-Ming | Hetero-crystals, a new type of composite alloys: a case study of the 1144-phase TM-phosphides and -arsenides. | Session 168: Superconductivity: Theory/Computational |
| 2179 | Correlated Light-Matter Interactions and Excited-State Dynamics for Quantum Information | Narang, Prineha | I will show results using a new theoretical method we have developed to calculate arbitrary electron-phonon and electron-optical interactions in a diagrammatic many-body framework integrated with a nonequilibrium carrier transport method. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2180 | Design of Two-Level Quantum state in 2D Materials for Single Photon Emission | Gupta, Sunny; Yang, Ji-Hui; Yakobson, Boris | Design of Two-Level Quantum state in 2D Materials for Single Photon Emission | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2181 | The Effects of Disorder on 2D Material Properties | Duschatko, Blake; Ciccarino, Christopher; Narang, Prineha | In this talk, I present how recent advances in high precision atomic imaging can be leveraged with ab initio calculations to advance our ability to characterize material properties. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2182 | Theoretical Investigation of Color Centers in Diamond for Quantum Information Science | Ciccarino, Christopher; Flick, Johannes; Trusheim, Matthew; Narang, Prineha | We leverage our unique first-principles methods to detail crucial defect properties in the SnV -, PbV -[1] and SiV 0, in addition to novel diamond color centers. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2183 | Phonon-induced multi-color correlations in hBN single-photon emitters | Feldman, Matthew; Puretzky, Alexander; Lindsey, Lucas; Briggs, Dayrl; Evans, Phil; Haglund, Richard; Lawrie, Benjamin | We demonstrate photon antibunching in the filtered auto- and cross-correlations between zero-, one- and two-phonon replicas of defect luminescence. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2184 | Microwave dielectric loss of hexagonal Boron Nitride in the low-temperature, single-photon regime | Yamoah, Megan; Wang, Joel; Boettcher, Charlotte; Kannan, Bharath; Kim, David; Krantz, Philip; Rodan Legrain, Daniel; Rubies-Bigorda, Oriol; Yoder, Jonilyn; Watanabe, Kenji; Taniguchi, Takashi; Orlando, Terry; Gustavsson, Simon; Jarillo-Herrero, Pablo; Oliver, William | We study hBN in the microwave regime by integrating the material in a superconducting LC resonator to extract its loss tangent. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2185 | Towards coherent control of single nuclear spins of 171Yb in YVO | Kindem, Jonathan; Ruskuc, Andrei; Bartholomew, John; Rochman, Jake; Faraon, Andrei | Here we describe work towards coherent control of long-lived nuclear spins of individual 171Yb ions coupled to a nanoscale photonic crystal cavity fabricated in the YVO host crystal. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2186 | Characterization of epitaxially grown Er doped Y2O3 for quantum optics applications | Singh, Manish Kumar; Alam, Khan; Rajh, Tijana; Zhong, Tian; Guha, Supratik | We have investigated Er-doped Y2O3 thin films, grown epitaxially on Si(111) MBE. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2187 | Precisely Located Si Vacancies in 4H-SiC Generated via Focused Li-ion Beam for Quantum Information Science Applications | Pavunny, Shojan; Bielejec, Edward; Carter, Samuel; Banks, Hunter; Myers-Ward, Rachael; Klein, Paul; Dejarld, Matthew; Bracker, Allan; Glaser, Evan; Gaskill, David | Here we demonstrate the precise generation of single and ensemble emitter arrays in defect-free epitaxial 4H-SiC layer through Li-ions, implanted with an energy of 100 keV and doses ranging from 10 12�10 15 Li/cm 2 using a maskless focused ion beam technique (~25 nm diameter spot positioned with ~25 nm accuracy and having anion travel depth of ~400 nm). | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2188 | Radiationless Creation and Patterning of Color Centers in Diamond | McQuade, Patrick; Elias-Gonzalez, Andrew; Gebbie, Matthew; Melosh, Nicholas | I will present a new approach for creation and patterning of color centers in diamond without the use of irradiation. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2189 | Strongly Extended Superradiance in Optical Dirac Cone Metamaterials | Mello, Olivia; Li, Yang; Camayd-Munoz, Philip; Shao, Linbo; Chia, Cleaven; Mazur, Eric; Loncar, Marko | [1] We design and simulate a diamond metamaterial with zero refractive index at 737 nm. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2190 | Electron-electron interactions in highly degenerately doped embedded Si:P delta layers in silicon produced by variable PH3 dosing | Hagmann, Joseph; Wang, Xiqiao; Kashid, Ranjit; Namboodiri, Pradeep; Wyrick, Jonathan; Schmucker, Scott; Zimmerman, Neil; Stewart, M.; Silver, Richard; Richter, Curt | This study investigates the transport behavior and the electron-electron interaction (EEI) physics in the highly doped regions of embedded Si:P-based devices by means of self-consistent magnetotransport (MT) measurements. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2191 | Atomic Scale Patterned Arsenic in Silicon | Stock, Taylor; van Loon, Marcel; Warschkow, Oliver; Hofmann, Emily; Crane, Eleanor; Schofield, Steven; Curson, Neil | Working towards expanding the materials palette of STM lithography, we have examined the compatibility of arsenic (As) with STM-HDL. | Session 169: Materials for Quantum Information Science — Defect-based Quantum Technology |
| 2192 | Boson-Fermion Duality in Four Dimensions | Furusawa, Takuya; Nishida, Yusuke | In this talk, we propose a novel boson-fermion duality in four space-time dimensions by generalizing the lattice construction approach [1], which was applied to derive 3D boson-fermion duality [2]. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2193 | Monte Carlo Study of Compact Quantum Electrodynamics at larger Fermion Flavors | Wang, Wei; Xu, Xiao Yan; Wang, Chong; Meng, Zi Yang | Here we focus on the large fermion flavor case (Nf>=8), where the deconfine-confine phase transition is investigated in detail. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2194 | Exact Results on Itinerant Ferromagnetism and the 15-puzzle Problem | Bobrow, Eric; Stubis, Keaton; Li, Yi | We apply a result from graph theory to prove exact results about itinerant ferromagnetism. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2195 | The Fermion Bag Approach to Hamiltonian Theories | Huffman, Emilie; Chandrasekharan, Shailesh | Using the t-V model Hamiltonian, we demonstrate how the fermion bag approach–originally developed in the context of Lagrangian lattice field theories–led to the first sign problem solution for this model. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2196 | Fracton and Holography | Yan, Han | In this work we discuss a classical toy model based on fracton topological order, a class of exotic many-body systems with boundary area law of ground state degeneracy and (partially) immobile excitations. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2197 | Monte Carlo Study of Compact Quantum Electrodynamics with Fermionic Matter: the Parent State of Quantum Phases | Qi, Yang; Xu, Xiao Yan; Zhang, Long; Assaad, Fakher; Xu, Cenke; Meng, Zi Yang | Here we show that the problem of compact U(1) lattice gauge theory coupled to fermionic matter in (2+1)D is possible to access via sign-problem-free quantum Monte Carlo simulations. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2198 | Hidden SU(2) Symmetries, Symmetry Hierarchy and Emergent Eight-Fold-Way in Spin-1 Quantum Magnets | Jin, Hui-Ke; Zhou, Yi; Miao, Jian-Jian | In this work, we study some SU(2) symmetries as subgroups of the SU(3), which was not bewared in literature to the best of our knowledge. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2199 | Numerically study the conformality of Q-state 1+1D quantum Potts model at Q>4 | Ma, Han; He, Yin-Chen | We numerically study the simplest platform of this physics � the Q-state 2D Potts model when Q>4. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2200 | Slow scrambling in a quantum rotor model with random exchange interactions | Mao, Dan; Chowdhury, Debanjan; Todadri, Senthil | We study the OTOC for a solvable model of a large number (N) of M-component quantum rotors coupled by Gaussian-distributed random, infinite-range exchange interactions [1]. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2201 | Superfluidity without Condensation | Hegg, Anthony; Ku, Wei | We develop a new microscopic theory that exhibits low temperature superfluidity on a 2D lattice despite the lack of condensation and show that it has surprising properties. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2202 | Numerically efficient parquet-equations solver for correlated electron systems | Eckhardt, Christian; Kauch, Anna; Schober, Giulio; Honerkamp, Carsten; Held, Karsten | We use the truncated-unity method, previously developed in the context of the functional renormalization group (fRG), to approximate the complex emergent momentum structure of the vertex [2]. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2203 | Fibonacci Topological Superconductor | Hu, Yichen; Kane, Charles | In this talk we will present a model of interacting Majorana fermions that describes a superconducting phase with a topological order characterized by the Fibonacci topological field theory. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2204 | Nonlocal probes for strongly-correlated quantum phases | Capogrosso-Sansone, Barbara; Lingua, Fabio; Wang, Wei; Shpani, Liana | In this talk, we propose non-local probes to study correlations in lattice bosons. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2205 | Effective spin-orbit models using correlated first-principles wave functions | Chang, Yueqing; Wagner, Lucas | We present a new computational technique that uses first-principles quantum Monte Carlo calculations to address spin-orbit effects efficiently while also treating electron correlation accurately. | Session 170: Novel Approaches to Studying Quantum Matter |
| 2206 | Super-geometric transverse electron focusing on the hexagonal Fermi surface of PdCoO2 | Moll, Philip; Bachmann, Maja; Sharpe, Aaron; Barnard, Arthur; Koenig, Markus; Putzke, Carsten; Khim, Seunghyun; Mackenzie, Andrew; Goldhaber-Gordon, David | We fabricate ballistic structures for transverse electron focusing from as-grown single crystals via focused ion beam machining, and demonstrate magnetic focusing up to 20?m. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2207 | Direct Growth of Vertically Aligned Carbon Nanotube Arrays on Stainless Steel and Their Field Emission Properties | Thapa, Arun; Li, Wenzhi | We report the growth of VACNT arrays on stainless steel (SS) via dc plasma enhanced chemical vapor deposition without the use of a metal catalyst layer. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2208 | The connection between enhanced phonon-exciton interaction next to localization centers and photoluminescence of few-body complexes in tungsten-based transition metal dichalcogenide monolayers. | Van Tuan, Dinh; Dery, Hanan | We show that these PL peaks stem from phonon-assisted recombination of excitons or biexcitons next to localized electrons (i.e., these are not real trions or trion-exciton complexes that can diffuse in the monolayer). | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2209 | Synthesis, structure, and physical properties of carbon nanotubes filled with nickel sulfide nanowires | Poudel, Yuba; Li, Wenzhi | We report a novel synthesis of carbon nanotubes (CNTs) filled with continuous nanowires of nickel sulfide via a chemical vapor deposition method. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2210 | Title: Refrigeration and thermometry for millikelvin and sub-millikelvin nanoelectronics. | Chawner, Joshua; Bradley, Ian; Gu�nault, Antony; Gunnarsson, David; Haley, Richard; Jones, Alexander; Pashkin, Yuri; Penttil�, Jari; Prance, Jonathan; Prunnila, Mika; Roschier, Leif | Here we will present our approach to solving the problem: nuclear demagnetization refrigeration of on-chip copper to directly cool the electrons without intervening phonons [2]. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2211 | Modeling transport in phosphorus ?-doped silicon tunnel junctions | Maurer, Leon; Marshall, Michael; Campbell, DeAnna; Tracy, Lisa; Lu, Tzu-Ming; Ward, Daniel; Misra, Shashank | We use a scalable model to study transport in nanoscale tunnel junctions made from Si:P ? layers, and we show that the transport properties of tunnel junctions can provide insight into the electronic structure of Si:P ? layers. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2212 | Effect of electron-phonon interaction on the opto-electronic properties of semiconducting nanoparticles | Yang, Han; Govoni, Marco; Galli, Giulia | We used a newly developed first-principle method [1] based on many-body-perturbation-theory, which efficiently combines electron-electron and electron-phonon interaction without explicitly evaluating virtual electronic orbitals. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2213 | Electronic noise due to temperature differences in atomic-scale junctions: beyond standard thermal and shot noises | Shein-Lumbroso, Ofir; Simine, Lena; Nitzan, Abraham; Segal, Dvira; Tal, Oren | Here, we report on a new version of electronic noise that is generated by temperature differences across nanoscale conductors, which we term �delta-T noise� 1. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2214 | Surface Plasmon Polaritons in Chalcogenides | Ozsoy Keskinbora, Cigdem; Chaudhary, Kundan; Tamagnone, Michele; Ou, Yunbo; Devarakonda, Aravind; Suzuki, Takehito; Checkelsky, Joseph; Moodera, Jagadeesh; Capasso, Federico; Bell, David | Here we show the electron energy loss spectroscopy and a finite difference frequency domain study for investigating Bi 2Se 3, and BaNbS. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2215 | Room Temperature Phonon Focusing As a Tool for Tuning Thermal Conductivity in Nanostructured Materials | Romano, Giuseppe | Here we investigate this phenomenon at room temperature in Si nanostructured materials. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2216 | Vertical p-n junction of a thermoelectric material investigated using photoemission technique | Lee, Jieun; Hwang, Jinwoong; Kang, Minhee; Kim, Kyoo; Ryu, Hyejin; Tang, Shujie; Cho, Sunglae; Mo, Sung-Kwan; Yang, Ho-soon; Hwang, Choongyu | Here we report one of the plausible ways to prepare the p-n junction via the experimental investigation of the electron band structure of a thermoelectric material using photoemission technique. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2217 | One-Dimensional Atomic Tellurium Chains in Boron Nitride Nanotubes: Synthesis and Devices | Liao, Pai-Ying; Qin, Jingkai; Si, Mengwei; Zhang, Siqi; Yap, Yoke; Ye, Peide (Peter) | One-Dimensional Atomic Tellurium Chains in Boron Nitride Nanotubes: Synthesis and Devices | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2218 | Single-molecule rectifiers based on voltage-dependent deformation of molecular orbitals in carbazole oligomers | Ohto, Tatsuhiko; Albrecht, Ken; Yamada, Ryo; Minode, Keigo; Yamamoto, Kimihisa; Tada, Hirokazu | In the present study, we demonstrate that molecular junctions based on carbazole oligomers showed a current rectification behavior due to asymmetric-symmetric control of electronic hybridization between the molecule and electrodes at the both terminals. | Session 171: Transport in Nanostructures — Nanoscale Transport |
| 2219 | Magnetism of ultra-short one dimensional atomic chains | Vargas, Nicolas; Monton, Carlos; Torres, Felipe; Kiwi, Miguel; Altbir, Dora; Carvalho-Santos, Vagson; Baker, Alexander; Willey, Trevor; Schuller, Ivan | We report structural and magnetic properties of one-dimensional Fe chains as a function of length in the 10 to 200 atoms range. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2220 | Coordination dependence of cooperative effects in spin crossover [Fe{H2B(pz)2}2(bipy)] thin film | Hao, Guanhua; Jiang, Xuanyuan; Mosey, Aaron; Yost, Andrew; Zhang, Xin; N’Diaye, Alpha; Zhang, Jian; Cheng, Ruihua; Xu, Xiaoshan; Dowben, Peter | Coordination dependence of cooperative effects in spin crossover [Fe{H2B(pz)2}2(bipy)] thin film | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2221 | Local charge accumulation at a trinuclear metal-organic nanostructure on a surface | Schiffrin, Agustin; Krull, Cornelius; Castelli, Marina; Hapala, Prokop; Tadich, Anton; Capsoni, Martina; Edmonds, Mark; Hellerstedt, John; Burke, Sarah; Jelinek, Pavel; Kumar, Dhaneesh | Combining low-temperature scanning probe microscopy techniques, density functional theory and x-ray absorption spectroscopy, we demonstrate that the coordination motif consists of coplanar terpyridine groups linked via a quasi-linear tri-iron node with mixed positive valence and a metal�metal bond configuration. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2222 | Electron Induced Disordering and Decomposition of Alkanethiol Self-assembled Monolayers on Au(111) | Grzeskowiak, Jodi; Ventrice, Carl | Electron Induced Disordering and Decomposition of Alkanethiol Self-assembled Monolayers on Au(111) | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2223 | Assessing Monomer and Aggregate Populations in Squaraine-Based Organic Solar Cells | Ryczek, Catherine; Cruz, Adriana; Hooshangi, Zhila; Gupta, Soumya; Burson, Kristen; Collison, Christopher | We aim to demonstrate how OPV efficiency is indeed related to aggregate (vs. monomer) populations through quantitative measurement. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2224 | Tuning the tunneling decay coefficient in self-assembled monolayer junctions | Chen, Xiaoping; Annadata, Harshini; Kretz, Bernhard; Egger, David; Nijhuis, Christian | In our combined experimental and computational study, we demonstrate that ? of a non-conjugated SAM junction can be lowered significantly by using different halogens as termination on one side of the molecular backbone. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2225 | Coherent X-ray measurement of local step-flow propagation during growth on polycrystalline C60 thin film surfaces | Headrick, Randall; Ulbrandt, Jeffrey; Myint, Peco; Wan, Jing; Li, Yang; Fleurasu, Andrei; Zhang, Yugang; Wiegart, Lutz; Ludwig, Karl | This model predicts that the steps become almost stationary near the edges of the mounds where the local terrace length is very small, and the average slope of the surface is large. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2226 | Differences in Self-Assembly of Spherical C60 and Planar PTCDA on Rippled Graphene Surfaces | Li, Yanlong; Liu, Xiaoyang; Chen, Chuanhui; Duchamp, James; Huang, Rong; Chung, Ting-Fung; Young, Maxwell; Chalal, Tarek; Chen, Yong; Heflin, James; Dorn, Harry; Tao, Chenggang | Herein, we report on the preparation of fullerene, C 60 and perylenetetracarboxylic dianhydride (PTCDA) molecules adsorbed on a rippled graphene surface. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2227 | Effect of Admixture on Domain Morphology Transitions in Phase Separation of PCBM:tn-ZnPc from CCl3 Solution | Phaneuf, Raymond; Cezza, Miriam | We present results of investigations aimed at understanding how small mutually immiscible organic molecules self-assemble into domains during phase separation from liquid solutions. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2228 | Competing on-surface reaction pathways of bifunctional anthracene precursors to obtain organometallic networks | Dominguez-Celorrio, Amelia; Pe�a, Diego; Langlais, Veronique; Serrate, David | Aiming at the synthesis of a porous network, we study the hierarchy of chemical reactions of 10-bromoanthracene-9-yl-boronic-acid (BABA) precursors that are vapour sublimated onto crystalline surfaces under ultra-high-vacuum conditions. | Session 172: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Materials Synthesis, Deposition, and Device preparation |
| 2229 | Lars Onsager Prize Talk: Scaling down the laws of thermodynamics | Jarzynski, Christopher | I will describe some of the recent progress and challenges associated with addressing these questions. | Session 173: Onsager, Kadanoff, Davisson-Germer Prize Session |
| 2230 | Dissertation Award in Statistical and Nonlinear Physics Talk: The emergence of collective modes, ecological collapse and directed percolation at the laminar-turbulent transition | Shih, Hong-Yan | Based on numerical evidence in the Navier-Stokes equations, we discovered the surprising fact that the fluid behavior at the transition is governed by the emergent predator-prey dynamics of the important long-wavelength mode, leading to the mathematical prediction that the laminar-turbulent transition is a non-equilibrium phase transition in the directed percolation universality class. | Session 173: Onsager, Kadanoff, Davisson-Germer Prize Session |
| 2231 | Leo P. Kadanoff Prize Talk: Complex flows and topology in active matter | Marchetti, M Cristina | After highlighting some of these behaviors, I will focus in this talk on the self-sustained flows of active nematics where the proliferation of motile topological defects mediates the transition to spatiotemporal chaotic dynamics. | Session 173: Onsager, Kadanoff, Davisson-Germer Prize Session |
| 2232 | Davisson-Germer Prize in Atomic or Surface Physics Talk: Studies of Two-dimensional Materials using Tunneling Electrons | Feenstra, Randall | In this talk, studies of the structure of grown 2D layers will be described, focusing on heterobilayers of MoS 2 on WSe 2. | Session 173: Onsager, Kadanoff, Davisson-Germer Prize Session |
| 2233 | Terahertz spectroscopy of the cuprate superconductor La2-xSrxCuO4 in the photoexcited nonequilibrium state | Niwa, Hiroaki; Yoshikawa, Naotaka; Song, Dongjoon; Eisaki, Hiroshi; Shimano, Ryo | Here, we focused on an archetypal cuprate superconductor La 2-xSr xCuO 4 with the doping levels of x = 0.125 to x = 0.15, and investigated the dynamics after intense photoexcitation by utilizing near-infrared (800 nm) optical pump-terahertz probe spectroscopy. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2234 | C-Axis Spectra of La2-x BaxCuO4 in the Normal and Superconducting State | Martinez, Vladimir; Yan, Luyi; Tanner, David; Gu, Genda | C-Axis Spectra of La2-x BaxCuO4 in the Normal and Superconducting State | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2235 | Intrinsic electronic Raman spectrum and pairing symmetry in cuprate superconductors | Kim, Hyun-Tak | Here, we show the intrinsic nonlinear Raman spectrum obtained by subtracting the pseudogap characteristic of a nonlinear from the linear Raman spectrum measured in the B 2g mode of the node area below Tc. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2236 | Photoinduced phase transitions in cuprate superconductors: ordering vs. doping effects | El Hage, Ralph; Rouco, Victor; Sander, Anke; Cuellar, Fabian; Sanchez Manzano, David; Santamaria, Jacobo; Villegas, Javier | Here we investigate that through light illumination effects in oxygen deficient YBa 2Cu 3O 7-x thin films in which different degrees of disorder are induced through i) changes in the growth conditions (�quenching�) and ii) ion irradiation. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2237 | Infrared linear dichroism resonance in over-, under-, and optimally-doped cuprate superconductors | Seo, Jungryeol; Mukherjee, Alok; Arik, Mumtaz Murat; George, Deepu; Markelz, Andrea; Cerne, John; Zhang, Chao; Zhang, Hao; Wei, John; Armitage, Peter; koren, Gad; Kirzhner, Tal | We report systematic measurements on epitaxial thin films of high-temperature cuprate superconductors using polarization sensitive measurements. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2238 | High temperature RIXS study of charge transfer excitations in cuprates | Yu, Biqiong; Ishii, Kenji; Asano, Shun; Fujita, Masaki; Casa, Diego; Yu, Guichuan; Greven, Martin | Here we present results of a recent Cu K-edge RIXS study on the archetypal hole-doped cuprate La 2-xSr xCuO 4 and electron-doped cuprate Nd 2-xCe xCuO 4. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2239 | Doping Dependence of Charge Density Wave in Bi-2212 Cuprate Superconductors | Lu, Haiyu; Hepting, Matthias; Hashimoto, Makoto; He, Yu; Chen, Sudi; Xu, Kejun; Ishida, Shigeyuki; Yoshida, Yoshiyuki; Eisaki, Hiroshi; Arpaia, Riccardo; Ghiringhelli, Giacomo; Braicovich, Lucio; Moritz, Brian; Huang, Edwin; Kummer, Kurt; Brookes, Nicholas; Shen, Zhi-Xun; Devereaux, Thomas; Lee, Wei-Sheng | We performed high energy resolution momentum-resolved resonant inelastic soft x-ray scattering (RIXS) experiments at the Cu L3-edge on the high-temperature superconductor Bi 2Sr 2CaCu 2O 8+x with the doping level across the entire phase diagram (Antiferromagnetic, underdoped, optimally doped, and overdoped). | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2240 | Anisotropically damped magnetic excitations in La2-xSrxCuO4 | Robarts, Hannah; Hayden, Stephen; Zhou, Kejin | Anisotropically damped magnetic excitations in La2-xSrxCuO4 | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2241 | Photo-enhanced metastable c-axis transport in stripe ordered cuprate La1.885Ba0.115CuO4 | Cremin, Kevin; Zhang, Jingdi; Homes, Christopher; Gu, Genda; Sun, Zhiyuan; Fogler, Michael; Millis, Andrew; Basov, Dimitri; Averitt, Richard | After photo-excitation of the superconducting state with 1.55 eV pulses, we observe the emergence of a new long lived metastable state which displays a blue shifted plasma edge. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2242 | Self-heating, phase coherence, and sidewall angle in stacked intrinsic Josephson junction Bi2Sr2CaCu2O8 terahertz sources | Kihlstrom, Karen; Benseman, Timothy; Koshelev, Alexei; Welp, Ulrich; Kwok, Wai-Kwong; Kadowaki, Kazuo | Here we calculate the optimal sidewall angle as a function of device geometry, doping state, emission frequency, and intended operating temperature. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2243 | Evolution of charge order topology across a magnetic quantum phase transition in electron-doped cuprates | Kang, Min Gu; Pelliciari, Jonathan; Frano, Alex; Breznay, Nicholas; Schierle, Enrico; Weschke, Eugen; Sutarto, Ronny; He, Feizhou; Shafer, Padraic; Arenholz, Elke; Chen, Mo; Zhang, Keto; Ruiz, Alejandro; Hao, Zeyu; Lewin, Sylvia; Analytis, James; Krockenberger, Yoshiharu; Yamamoto, Hideki; Das, Tanmoy; Comin, Riccardo | Here, using resonant soft X-ray scattering, we investigate the evolution of the full momentum space topology of charge correlations in T�-Ln 2CuO 4 (Ln=Nd, Pr) as a function of intrinsic electron doping. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2244 | Study of radiation spectrum of Bi2Sr2CaCu2O8+d high-Tc superconducting terahertz emitters. | Kashiwagi, Takanari; Kuwano, Genki; Imai, Takayuki; Nakagawa, Shungo; Tanabe, Yuuki; Ota, Ryusei; Nakamura, Kento; Ono, Yukino; Kaneko, Youta; Kusunose, Shinji; Tsujimoto, Manabu; Yamamoto, Takashi; Minami, Hidetoshi; Klemm, Richard; Kadowaki, Kazuo | In order to understand the details of the radiation characteristics of above thermal managed Bi2212-THz emitters, we have studied not only radiation frequency characteristics but also radiation linewidth characteristics. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2245 | Optical perturbation of the “hole-pockets” in the underdoped high Tc superconducting cuprates | Freutel, Simon; Rameau, Jonathon; Rettig, Laurenz; Avigo, Isabella; Ligges, Manuel; Yoshida, Yoshiyuki; Eisaki, Hiroshi; Schneeloch, John; Zhong, Ruidan; Xu, Zhijun; Gu, Genda; Bovensiepen, Uwe; Johnson, Peter | We confirm the concept of a small pocket in the underdoped system consistent with theoretical predictions in this strongly correlated state. | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2246 | Pressure tuning of competing orders and superconductivity in Bi2Sr1.6La0.4CuO6 | Hu, Jiawei; Xin, Jie; Chen, Xiao-Jia; Struzhkin, Viktor; Goncharov, Alexander; Lin, Hai-Qing; Lin, Cheng-tian | Pressure tuning of competing orders and superconductivity in Bi2Sr1.6La0.4CuO6 | Session 174: Superconductivity: Copper Oxide – Spectroscopy |
| 2247 | Fermi-surface morphology and signatures of quantum critical points in the high-Tc cuprate HgBa2CuO4+? revealed by high-magnetic fields | Chan, Mun; Harrison, Neil; McDonald, Ross; Bauer, Eric | We report measurements of the low temperature electronic structure of the single-layer cuprate featuring the highest superconducting temperatures, HgBa 2CuO 4+? (Hg1201). | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2248 | Probing the Fermi surface of Nd-LSCO with angle-dependent magnetoresistance measurements | Fang, Yawen; Legros, Anaelle; Grissonnanche, Gael; Laliberte, Francis; Goddard, Paul; Taillefer, Louis; Ramshaw, Brad | To study the topology of this Fermi surface, we performed an angle-dependent magetoresistance (ADMR) study of Nd-LSCO. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2249 | Superconducting Higgs mode in cuprate thin films | Chu, Hao; Kim, Min-Jae; Katsumi, Kota; Kovalev, Sergey; Dawson, Robert; Schwarz, Lukas; Yoshikawa, Naotaka; Kim, Gideok; Germanskiy, Semyon; Deinert, Jan-Christoph; Awari, Nilesh; Green, Bertram; Chen, Min; Bawatna, Mohammed; Cristiani, Georg; Logvenov, Gennady; Gallais, Yann; Boris, Alexander; Keimer, Bernhard; Schnyder, Andreas; Manske, Dirk; Gensch, Michael; Wang, Zhe; Shimano, Ryo; Kaiser, Stefan | We accomplish this goal by using an undulator-based high-field THz pulse, which nonlinearly couples to the superconducting condensate and leads to characteristic third harmonic generation. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2250 | Breaking the universal Tc-P relation to higher Tc of cuprate HTS | Chu, Ching-Wu; Deng, Liangzi; Zheng, Yongping; Wu, Zheng; Huyan, Shuyuan; Wu, Hung-Cheng; Cho, Kyeongjae | By investigating the bulk superconducting state via dc magnetization measurements, we have discovered the resurgence of the superconductive transition temperature T cs of the monolayer Bi 2Sr 2CuO 6+? and bilayer Bi 2Sr 2CaCu 2O 8+? to beyond the maximum T c- maxs predicted by the universal T c-P relation at higher pressures. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2251 | Thermoelectric evidence of anomalous quantum criticality in the electron-doped cuprates | Mandal Sarkar, Pampa; Sarkar, Tarapada; Greene, Richard | We observe quantum critical S/T versus ln(1/T) behavior over an unexpectedly wide doping range x = 0.15 – 0.17 above the putative QCP ( x=0.14) with a slope that scales monotonically with the superconducting transition temperature. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2252 | Josephson interferometry measurements of the superconducting pairing symmetry in the overdoped cuprate La1.75Sr0.25CuO4 — search for disorder-induced deviations from d-wave symmetry | Hamilton, David; Fujita, Masaki; Van Harlingen, Dale | In preliminary measurements of I c vs. magnetic field, we observe deviations from Fraunhofer patterns expected for uniform edge junctions and from the characteristic corner junction pattern expected for d x 2 -y 2 symmetry. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2253 | The New NMR Shift and Relaxation Scenario of the Cuprates | Haase, Juergen | Based on experiments and a comprehensive literature analysis of cuprate NMR shift and relaxation data we present the new scenario for the cuprates. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2254 | Apical charge flux-modulated in-plane transport properties of cuprate superconductors | Li, Xin; Kim, Sooran; Chen, Xi; Fitzhugh, William | We demonstrate herein, using ab initio computations, a new trend suggesting that the cuprates with stronger out-of-CuO 2-plane chemical bonding between the apical anion (O, Cl) and apical cation (e.g. La, Hg, Bi, Tl) are generally correlated with higher Tc,max in experiments. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2255 | Non-equilibrium study of the phase diagram of cuprates | Boschini, Fabio; Razzoli, Elia; Zonno, Marta; Day, Ryan; Michiardi, Matteo; Da Silva Neto, Eduardo; Gu, Genda; Zhdanovich, Sergey; Mills, Arthur; Levy, Giorgio; Jones, David; Giannetti, Claudio; Damascelli, Andrea | In the same line of thought, we applied this non-equilibrium approach to (i) reveal the transient competition between charge-order and superconducting phases and (ii) explain the enhanced electron-boson band renormalization (kink) in terms of the opening of the superconducting gap and pseudogap. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2256 | Fluctuating superconductivity and absence of charge order in heavily overdoped cuprate Bi-2212 | He, Yu; Chen, Sudi; Hashimoto, Makoto; Frano, Alex; Yi, Ming; Song, Yu; Wu, Shan; Song, Dongjoon; Eisaki, Hiroshi; Birgeneau, Robert; Shen, Zhixun | We identify significant superconducting fluctiations on a single coherent, hole-like Fermi surface in heavily overdoped cuprate superconductor Bi-2212. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2257 | Phase fluctuation in overdoped cuprates? Superconducting dome due to Mott-ness of the tightly bound preformed pairs | LANG, ZIJIAN; Yang, Fan; Ku, Wei | In contrast to the current lore, we demonstrate that even the overdoped cuprates suffer from superconducting phase fluctuation in the strong binding limit. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2258 | Angular Magnetoresistance Measurements as a Probe of the Fermi Surface in Hg1201 | Schreiber, Katherine; Chan, Mun; Harrison, Neil; Bauer, Eric | We present measurements of the Fermi surface of underdoped HgBa 2CuO 4+d (Hg1201), obtained through angular magnetoresistance. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2259 | Universal T-linear resistivity and Planckian dissipation in cuprates | Taillefer, Louis; Legros, Anaelle; Benhabib, Siham; Tabis, Wojciech; Laliberte, Francis; Dion, Maxime; Lizaire, Maude; Vignolle, Baptiste; Vignolles, David; Raffy, H�l�ne; Li, ZZ; Auban-Senzier, Pascale; Doiron-Leyraud, Nicolas; Fournier, Patrick; Colson, Doroth�e; proust, cyril | Here we show that T-linear resistivity as T?0 is a generic property of cuprates, associated with a universal scattering rate [1]. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2260 | Cuprate quantum phase transition probed by nanoscale density wave inhomogeneity | Webb, Tatiana; Hausknecht, Kaylie; Boyer, Michael; Yin, Yi; Chowdhury, Debanjan; He, Yang; Kondo, Takeshi; Takeuchi, Tsunehiro; Ikuta, Hiroshi; Hudson, Eric; Hamidian, Mohammad; Hoffman, Jennifer | We employ the disorder caused by local dopant inhomogeneity to gain continuous access to the doping axis of the phase diagram, both via standard Fourier techniques and machine learning. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2261 | Nodeless high-Tc superconductivity in highly-overdoped monolayer CuO2 | Jiang, Kun; Wu, Xianxin; Hu, Jiangping; Wang, Ziqiang | We study the electronic structure and superconductivity in CuO 2 monolayer grown recently on d-wave cuprate superconductor Bi 2Sr 2CaCu 2O 8+?. | Session 175: Superconductivity: Copper Oxide – Fermiology and Phase Diagram |
| 2262 | Quintet multiexciton dynamics in singlet fission | McCamey,, Dane | Quintet multiexciton dynamics in singlet fission | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2263 | Charge-state controlled imaging of electronic transitions in single molecules | Patera, Laerte; Queck, Fabian; Scheuerer, Philipp; Repp, Jascha | Here, we demonstrate the capability of performing tunnelling experiments on non-conductive substrates to map the orbital structure of isolated molecules upon electron transfer. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2264 | Direct visualization of hydrogen-transfer intermediate states by scanning tunneling microscopy | Bao, Deliang; Wu, Rongting; Yan, Linghao; WANG, YELIANG; Ren, Junhai; Zhang, Yanfang; Huan, Qing; Zhang, Yuyang; Du, Shixuan; Pantelides, Sokrates; Gao, H.-J. | This work demonstrates a practical way to directly visualize elusive intermediates, which enhances understanding of the quantum dynamics of hydrogen atoms. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2265 | Imaging Binding Structures of Small Molecules to Metallo-porphyrin Using Scanning Tunneling Microscopy | Chang, MinHui; Chang, Yun Hee; Kim, Na Young; Jeon, Un Seung; Kim, Howon; Kim, Kyung Min; Kim, Yong-Hyum; Kahng, Se-Jong | Here, we present STM images of further systems, di, tri, and quadra-atomic small molecules, binding to metallo-porphyrin on Au(111). | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2266 | Sub-Monolayer Annealed CuPc on Cu(111): Defect Hindered Dynamic Clusters | Huxter, William; Nogami, Jun; Singh, Chandra Veer | At coverages of 0.25 ML we observed that annealing produces a disordered cluster network of CuPc that attach together by forming C-C bonds across isoindole lobes. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2267 | Structure and electronic properties of end states of self-assembled 1D covalent molecular chains on Au(111) | Cahlik, Ales; Hellerstedt, John; Svec, Martin; Santhini, V M; Pascal, Simon; Erlingsson, Sigurour; Vyborny, Karel; Siri, Olivier; Jelinek, Pavel | We present our latest efforts to understand and simulate the observed structures via density functional theory (DFT) and nc-AFM simulations, and rationalize the observed electronic properties via modelling inspired by the Su, Schrieffer, Heeger (SSH) one-dimensional tight binding model. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2268 | Long-Range Energy Level Shifts Induced by Single Impurity Molecules in C60 Thin Films | M�rsell, Erik; Yuan, Bingkai; Cochrane, Katherine; DeJong, Miriam; Jones, David; Riede, Moritz; Burke, Sarah | We use scanning tunneling microscopy and spectroscopy to study model systems consisting of thin films of C 60 with single molecules of pure and fluorinated zinc phthalocyanine (ZnPc, F 4ZnPc, and F 8ZnPc) added. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2269 | Anharmonic Vibrational Raman Spectra in Polymorphic Molecular Crystals: Density-Functional-Perturbation Theory and Machine Learning | Raimbault, Nathaniel; Rossi, Mariana | In this work we characterise the low-frequency Raman spectral region of different polymorphs of the flexible aspirin and paracetamol crystals. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2270 | Evaluation of Pulay forces due to change in overlap of subspace-projection orbitals in constrained DFT: Application in calculation of reorganization energy of adsorbed molecule | Roychoudhury, Subhayan; O’Regan, David; Sanvito, Stefano | We derive an exact expression for such Pulay terms maintaining non-orthogonality of projection orbitals. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2271 | Impacts of Electrostatic Screening and Interfacial Charge Transfer on Molecular Donor-Acceptor Heterojunctions Studied by Scanning Probe Microscopy/Spectroscopy | Tan, Andrew; Zhang, Pengpeng | Employing archetypal D and A organic molecules and a variety of different supporting substrates, we show that the presence of the substrate, even a weakly interacting one, can still significantly perturb the intrinsic properties of the D-A heterojunction via interfacial charge transfer. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2272 | Spectroscopic evidence of two-impurity Kondo effect in potassium doped p-sexiphenyl films on Au (111) | Yan, Yajun; Chen, Wei; Ren, Mingqiang; Zhang, Yilin; Zhang, Tong; Feng, Donglai | In this work, we grow high-quality p-sexiphenyl (PSP) monolayer film on Au (111) substrate, and then doped it with potassium (K) atoms. | Session 176: Surface Science of Organic Molecular Solids, Films, and Nanostructures – Analysis, Imaging, Spectroscopy, and Simulation of Electronic States and Processes |
| 2273 | Multiple solutions for superconductivity at T=0 in a quantum-critical metal | Chubukov, Andrey; Abanov, Artem | We present some exact results the set of QC models with frequency-dependent effective interaction and discuss the consequences of the existence of multiple solutions for superconductivity at a QCP. | Session 177: Superconductivity: Theory General |
| 2274 | The spectial role of the first Matsubara frequency for superconductivity near a quantum critical point: the non linear gap equation below Tc and spectral properties in real frequency axis. | Wu, Yi-Ming; Abanov, Artem; Wang, Yuxuan; Chubukov, Andrey | We consider a model of itinerant fermions near a quantum critical point, where the effective interaction is mediated by order parameter fluctuations. | Session 177: Superconductivity: Theory General |
| 2275 | Strange metal crossover in the doped holographic superconductor | Giordano, Gaston; Grandi, Nicolas; Lugo, Adrian; Soto Garrido, Rodrigo | In this talk, we study the “normal” phase of a holographic superconductor. | Session 177: Superconductivity: Theory General |
| 2276 | Non-Fermi liquid scattering against emergent Bose liquid: manifestations in the kink and other exotic quasiparticle behaviors in the normal-state cuprate superconductors | Jiang, Shengtao; Zou, Long; Ku, Wei | Here we demonstrate that non-Fermi liquid behaviors emerge naturally from scattering against an emergent Bose liquid[1]. | Session 177: Superconductivity: Theory General |
| 2277 | Renormalization group study of superconductivity in Nickelates | Klett, Michael; Schwemmer, Tilman; Wu, Xianxin; Riegler, David; Thomale, Ronny | In this talk we sketch a simple two-band model of a d 7 Nickelate-compound and argue why, based on renormalization group calculations competing superconducting ordering propensities make these systems belong to the class of low-Tc materials. | Session 177: Superconductivity: Theory General |
| 2278 | Pairing Mechanism in Hunds Metal Superconductors and the Universality of the Superconducting Gap to Critical Temperature Ratio | Lee, Tsung-Han; Chubukov, Andrey; Miao, Hu; Kotliar, Gabriel | We propose a simple spin-fluctuation Eliashberg model that contains the physical ingredients of a Hund’s metal, the local spin-fluctuations with super-linear correlators, (? 0/|?|) ? with ?>1, interacting with electrons. | Session 177: Superconductivity: Theory General |
| 2279 | A Simple Model for Quantum Tunneling of Cooper Pairs | Patino, Edgar; Lozano, Daniel; Chevallier, Denis | We propose a simple phenomenological model for quantum tunneling of Cooper pairs based on their boson like nature. | Session 177: Superconductivity: Theory General |
| 2280 | Gap anisotropy in nematic quantum critical superconductors | Klein, Avraham; Wu, Yi-Ming; Chubukov, Andrey | Gap anisotropy in nematic quantum critical superconductors | Session 177: Superconductivity: Theory General |
| 2281 | Collective modes in 2 dimensional fermionic superfluid near Pomeranchuk instability | Hsiao, WeiHan | In this work we investigate order parameter collective modes in 2 dimensional fermionic superfluids in finite angular momentum pairing channels. | Session 177: Superconductivity: Theory General |
| 2282 | Fragile superconductivity in the presence of weakly disordered charge density waves | YU, Yue; Kivelson, Steven | From an analysis of the Landau-Ginzburg-Wilson theory of competing orders, we demonstrate the generic occurrence of a �fragile� SC phase at low temperatures and high fields in the presence of weak disorder. | Session 177: Superconductivity: Theory General |
| 2283 | Study of the superconducting Tc dome in the phase diagram of the two-dimensional Holstein model | Wang, Yan; Dee, Phillip; Nakatsukasa, Ken; Johnston, Steven | We report the Tc dome in the phase diagram of the two-dimensional Holstein model, where electrons and phonons interact through a local coupling. | Session 177: Superconductivity: Theory General |
| 2284 | Polarons, bipolarons and few-polaron states in the Peierls model of electron-phonon coupling | Sous, John; Nocera, Alberto; Berciu, Mona | We consider the one-dimensional Peierls model of electron-phonon coupling describing the modulation of the electron hopping by phonons. | Session 177: Superconductivity: Theory General |
| 2285 | Emergence of a Macroscopic Phase in an Isolated Electron-Phonon Superconductor | Kohno, Wataru; Kita, Takafumi | Within the number-conserving formalism introduced by Ambegaokar, we constructed a variational wave function of electron-phonon superconductors. | Session 177: Superconductivity: Theory General |
| 2286 | Generalization of Anderson’s Theorem for Disordered Superconductors | Dodaro, John; Kivelson, Steven; Kallin, Catherine | We show that at the level of BCS mean-field theory, the superconducting Tc is always increased in the presence of disorder, regardless of order parameter symmetry, disorder strength, and spatial dimension. | Session 177: Superconductivity: Theory General |
| 2287 | Interaction of the Topological Surface States with Spin Excitons in SmB6 � Dependency on the Crystallinity | Park, Wan Kyu; Sittler, Jennifer; Greene, Laura; Kim, Dae-Jeong; Fisk, Zachary; Fuhrman, Wesley; Chamorro, Juan; Koohpayeh, Seyed; Phelan, William; McQueen, Tyrel | We will present how the temperature evolution of tunneling conductance differs and discuss how spin excitons influence the emergence of coherent TSS. | Session 178: Surfaces of Topological Systems |
| 2288 | Preparation of High-Quality Junctions on SmB6 for Planar Tunneling Spectroscopy | Sittler, Jennifer; Greene, Laura; Kim, Dae-Jeong; Fisk, Zachary; Fuhrman, Wesley; Chamorro, Juan; Koohpayeh, Seyed; Phelan, William; McQueen, Tyrel; Park, Wan Kyu | Preparation of High-Quality Junctions on SmB6 for Planar Tunneling Spectroscopy | Session 178: Surfaces of Topological Systems |
| 2289 | Magnetize Topological Surface States of Bi2Se3 with a CrI3 Monolayer | HOU, YUSHENG; Kim, Jeongwoo; Wu, Ruqian | Through density functional calculations, we found that adsorption of a semiconducting two-dimensional van der Waals (2D-vdW) ferromagnetic CrI 3 monolayer can create a sizable spin splitting at the Dirac point of the topological surface states of Bi 2Se 3 films. | Session 178: Surfaces of Topological Systems |
| 2290 | Topological invariant of S4 protected high-order topological insulator. | Song, Zhida | In this talk, I present a bulk topological invariant of this S4 topology in terms of Wilson loop of Wilson loop. | Session 178: Surfaces of Topological Systems |
| 2291 | Bound State Signatures in a Mesoscopic TI Josephson Junction | Yavilberg, Konstantin; Ginossar, Eran; Grosfeld, Eytan | Here we consider a device where a topological insulator nanowire of type Bi2Se3 is proximitized to an isolated mesoscopic Josephson junction. | Session 178: Surfaces of Topological Systems |
| 2292 | Topological States in Restrictive Geometries | O’Brien, Liam; Shirali, Karunya; Sheehy, Daniel; Vekhter, Ilya | We present exact solutions for the surface states of this system, derive the effective surface Hamiltonian, and discuss the deviations of the dispersion and spin texture from the flat surface case. | Session 178: Surfaces of Topological Systems |
| 2293 | Observation of quadrupole topological insulators | Serra Garcia, Marc; Peri, Valerio; Huber, Sebastian | In this talk, we will discuss experimental observations of a multipolar (quadrupole) topological insulator and quadrupole transitions in phononic and LC-circuit platforms. | Session 178: Surfaces of Topological Systems |
| 2294 | Characterization of Electron Beam Damage to (BixSb1-x)2Te3-Based Topological Insulators | Rodenbach, Linsey; Rosen, Ilan; Fox, Eli; Pan, Lei; Zhang, Peng; Wang, Kang; Goldhaber-Gordon, David | We discuss our efforts to characterize electron beam damage to (BixSb1-x)2Te3-based topological insulators. | Session 178: Surfaces of Topological Systems |
| 2295 | Quantum-Hall to insulator transition in ultraclean topological insulator films | Salehi, Maryam; Shapourian, Hassan; Rosen, Ilan; Han, Myung-Geun; Moon, Jisoo; Shibayev, Pavel; Jain, Deepti; Goldhaber-Gordon, David; Oh, Seongshik | Here, in newly-developed ultraclean TI films, we report the first observation of QIT in TIs, with a well-defined scaling behavior. | Session 178: Surfaces of Topological Systems |
| 2296 | Electronic Properties of Bismuth Iodide (Bi4I4) | Liu, Yulu; Chen, Ruoyu; Li, Sheng; Liu, Xiaoyuan; Taniguchi, Takashi; Watanabe, Kenji; Lv, Bing; Zhang, Fan; Lau, Chun Ning | Here we report fabrication and measurement of Bi 4I 4 devices. | Session 178: Surfaces of Topological Systems |
| 2297 | Commuting-projector Hamiltonians for 2D time-reversal-invariant fermionic topological phases and many-body topological invariants | Son, Jun Ho; Alicea, Jason | Inspired by a recently constructed commuting-projector Hamiltonian for a 2D time-reversal-invariant topological superconductor [Wang et al., Phys. Rev. B 98, 094502 (2018)], we introduce a commuting-projector model that describes an interacting yet exactly solvable 2D time-reversal-invariant topological insulator. | Session 178: Surfaces of Topological Systems |
| 2298 | Ferromagnetism in Cr-doped Bi2Se3 thin films via surface-state engineering and carrier-selective anomalous Hall effect | Moon, Jisoo; Koirala, Nikesh; Salehi, Maryam; Oh, Seongshik | Here, we have successfully implemented ferromagnetic AHE in Cr-doped Bi 2Se 3 thin films by utilizing a surface state engineering scheme. | Session 178: Surfaces of Topological Systems |
| 2299 | Topological States at Interfaces and in Heterostructures | Shirali, Karunya Shailesh; Shelton, William; Vekhter, Ilya | Motivated by this observation we use a combination of ab initio and model calculations to investigate the consequences of interface potentials breaking spatial symmetries (with and without time reversal symmetry breaking) on the spectral and spin properties of the interface states. | Session 178: Surfaces of Topological Systems |
| 2300 | Dice Lattice in Ribbons and their Topological Properties | Soni, Rahul; Kaushal, Nitin; Okamoto, Satoshi; Dagotto, Elbio | In this work, we studied the topological properties of the dice lattice defined using ribbons both with open and periodic boundary conditions. | Session 178: Surfaces of Topological Systems |
| 2301 | Quantum Loop Topography for Machine Learning Transport | Zhang, Yi; Bauer, Carsten; Broecker, Peter; Ginsparg, Paul; Trebst, Simon; Kim, Eun-Ah | Here we introduce quantum loop topography (QLT): a feature-selection machine learning procedure by evaluating correlators� loop products of the microscopic models at independent Monte Carlo steps. | Session 179: Machine Learning Quantum Many-body Models |
| 2302 | Recent advances in the study of frustrated magnetism with Neural-Network quantum states | Choo, Kenny; Neupert, Titus; Carleo, Giuseppe | During this talk I will discuss our strategy to represent quantum states using deep convolutional networks. | Session 179: Machine Learning Quantum Many-body Models |
| 2303 | Symmetries and Many-Body Excitations with Neural-Network Quantum States | Choo, Kenny Jing; Carleo, Giuseppe; Regnault, Nicolas; Neupert, Titus | We applied our approach using both the restricted Boltzmann machine (RBM) and the feedforward neural network (FFNN). | Session 179: Machine Learning Quantum Many-body Models |
| 2304 | Learning Quantum Models from Symmetries | Chertkov, Eli; Villalonga, Benjamin; Clark, Bryan | With this goal in mind, we present an inverse method algorithm for learning quantum models, i.e., Hamiltonians, from symmetries or integrals of motion. | Session 179: Machine Learning Quantum Many-body Models |
| 2305 | Parent hamiltonians of restricted Boltzmann machine wavefunctions | Lederer, Samuel; Kim, Eun-Ah | Here we tackle the question of what hamiltonians take RBM wavefunctions as eigenstates. | Session 179: Machine Learning Quantum Many-body Models |
| 2306 | Learning a local Hamiltonian from local measurements | Bairey, Eyal; Arad, Itai; Lindner, Netanel | Here, we show that such Hamiltonians can be recovered from local observables alone, using computational and measurement resources scaling linearly with the system size. | Session 179: Machine Learning Quantum Many-body Models |
| 2307 | Accelerating Density Matrix Renormalization Group Computations with Machine Learning | Marks, Jacob; Jiang, Hong-Chen; Devereaux, Thomas | We investigate the application of machine learning methods to this problem and improve convergence time for various classes of strongly correlated systems. | Session 179: Machine Learning Quantum Many-body Models |
| 2308 | Observation of topological phenomena in a programmable lattice of 1,800 qubits | Carrasquilla, Juan | We use a simple but previously undemonstrated approach to statistical estimation with an annealing-based quantum processor, performing Monte Carlo sampling in a chain of reverse quantum annealing protocols. | Session 179: Machine Learning Quantum Many-body Models |
| 2309 | Self-learning with neural networks in determinant quantum Monte Carlo studies of the Holstein model. | Li, Shaozhi; Dee, Philip; Khatami, Ehsan; Johnston, Steven | We have used artificial neural networks (NN) within determinant quantum Monte-Carlo to improve the scaling of CPU runtime with typical system parameters. | Session 179: Machine Learning Quantum Many-body Models |
| 2310 | Unsupervised manifold learning of ground state wave functions | Matty, Michael; Zhang, Yi; Todadri, Senthil; Kim, Eun-Ah | We apply our approach to a band insulator and the toric code and demonstrate that our approach can separate ground state wave functions from excited state wave functions without any prior knowledge. | Session 179: Machine Learning Quantum Many-body Models |
| 2311 | Machinery representation of physics models via structured self-attention network | Liu, Junwei; Zhang, Yang; zhao, Yujun | In this work, we proposed a structured self-attention neural network approach, inspired by mean field theory, to represent the original Hamiltonian via well-structured neural layers. | Session 179: Machine Learning Quantum Many-body Models |
| 2312 | Neural Network Renormalization Group | Li, Shuo-Hui; Wang, Lei | We present a variational renormalization group (RG) approach using a deep generative model based on normalizing flows. | Session 179: Machine Learning Quantum Many-body Models |
| 2313 | Learning density functional theory mappings with extensive deep neural networks and deep convolutional inverse graphics networks | Ryczko, Kevin; Strubbe, David; Tamblyn, Isaac | In this work, we show that deep neural networks (DNNs) can be used in conjunction with Kohn-Sham density functional theory (KS-DFT) for two-dimensional electron gases in simple harmonic oscillator and random potentials. | Session 179: Machine Learning Quantum Many-body Models |