Highlights of Condensed Matter Physics (DCMP) Talks @ APS 2021 March Meeting (2)
American Physics Society (APS) March meeting is one of the largest physics meetings in the world. In 2021, the meeting will be held online due to COVID-19.
To help the community quickly catch up on the work to be presented in this meeting, 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).
If you do not want to miss any interesting academic paper, you are welcome to sign up our free daily paper digest service to get updates on new papers published in your area every day. You are also welcome to follow us on Twitter and Linkedin to get updated with new conference digests.
Paper Digest Team
team@paperdigest.org
TABLE : Condensed Matter Physics (DCMP) 2
| Title | Authors | Highlight | Session | |
|---|---|---|---|---|
| 1001 | Synthesis and Superconductivity of Infinite-Layer Nickelate Films | Hwang, Harold | We will present the synthesis and transport properties of the nickelate superconductors, our current understanding of the electronic structure [3,4], and observation of a doping-dependent superconducting dome in (Nd,Sr)NiO 2 [5], similar to cuprates. | Session 72: Superconductivity in Infinite-Layer Nickelates |
| 1002 | Accessing Experimentally Inaccessible States in Infinite Layer Nickelate | Lee, Kwan-Woo | Accessing Experimentally Inaccessible States in Infinite Layer Nickelate | Session 72: Superconductivity in Infinite-Layer Nickelates |
| 1003 | Critical nature of the Ni spin state in doped NdNiO2 | Berciu, Mona; Jiang, Mi; Sawatzky, George | Using an impurity calculation with a realistic modeling of the O bands, we show that in fact, the NiO 2 layers fall inside a critical region where the large pd hybridization favors a singlet 1A 1 hole-doped state like in the cuprate high-temperature superconducting layers CuO 2. | Session 72: Superconductivity in Infinite-Layer Nickelates |
| 1004 | Doping dependence of superconductivity in infinite layer nickelates | Ariando, Ariando | In this talk, I will present our recent progress in the growth of the nickelate infinite layer superconductors and in the observation of several new exciting properties that can further our understanding of this system. | Session 72: Superconductivity in Infinite-Layer Nickelates |
| 1005 | Low-valence layered nickelates: a cuprate analog for high-temperature superconductivity? | Botana, Antia | By means of first-principles calculations, we have analyzed the similarities and differences between this family of low-valence planar nickelates and cuprates. | Session 72: Superconductivity in Infinite-Layer Nickelates |
| 1006 | Photocurrent generation probes bulk and surface responses chiral Weyl semimetals | Orenstein, Joseph | In this talk I present results on PGEs in response to linear and circular polarized light (LPGE and CPGE, respectively). | Session 73: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 1007 | The magnetothermoelectric properties of three-dimensional Dirac/Weyl semimetals | Skinner, Brian | In this talk I give an overview of some of these properties, focusing in particular on the enhancement of thermopower by magnetic field. | Session 73: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 1008 | The surprising role for phonons in Topological Semimetals | Burch, Kenneth | In particular, we find the phonon-electron scattering far exceeds the phonon-phonon, suggesting phonons enhance the momentum of the carriers. | Session 73: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 1009 | New thermoelectric transport from the scale anomaly in Dirac/Weyl materials | Vozmediano, Maria | In this talk we will describe novel response functions associated to the scale anomaly in Dirac and Weyl semimetals [2]. | Session 73: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 1010 | Weyl fermions and fragile topology in acoustic meta-materials | Huber, Sebastian | In particular, I will present how artificial gauge fields lead to the appearance of chiral Landau levels in neutral Weyl systems and crystalline symmetries to novel fragile topological states in an acoustic super-structure. | Session 73: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 1011 | Strange metal Magnetoresistance and Hall effect in BaFe2(As1-xPx)2 | Maksimovic, Nikola; Koshelev, Alexei; Hayes, Ian; Nagarajan, Vikram; Singleton, John; Schenkel, Thomas; Analytis, James | In this talk, I will discuss a magnetoresistance model based on orbital motion in the presence of the sharply anisotropic Fermi surface and scattering time induced by antiferromagnetic order and fluctuations. | Session 74: Strange Metal Transport in Cuprates and Fe-based Superconductors |
| 1012 | Scale-invariant magnetoresistance in a cuprate superconductor | Giraldo-Gallo, Paula | In this talk, we present measurements of high-field magnetoresistance of thin-film La 2-xSr xCuO 4 cuprate in the vicinity of the critical doping, 0.161 ≤ p ≤ 0.190. | Session 74: Strange Metal Transport in Cuprates and Fe-based Superconductors |
| 1013 | Strange metal transport in electron-doped La2-xCexCuO4 | Sarkar, Tarapada | I report measurements of normal state resistivity, Hall Effect, magnetoresistance, and thermopower in the electron-doped cuprate La 2-xCe xCuO 4 for 0.19≥ x ≥0.08 as a function of temperature. | Session 74: Strange Metal Transport in Cuprates and Fe-based Superconductors |
| 1014 | Evidence for two charge sectors in the strange metal phase of overdoped cuprates | Hussey, Nigel | In this presentation, I describe my group’s recent exploration of the low-temperature ( T < 50 K) magnetotransport in two families of single-layer cuprates – Tl2201 and La-Bi2201 – across the so-called strange metal regime. | Session 74: Strange Metal Transport in Cuprates and Fe-based Superconductors |
| 1015 | Thermal diffusivity above the Mott-Ioffe-Regel limit | Kapitulnik, Aharon | We present high-resolution thermal diffusivity measurements on several near optimally doped electron- and hole-doped cuprate systems in a temperature range that passes through the Mott-Ioffe-Regel limit, above which the quasiparticle picture fails. | Session 74: Strange Metal Transport in Cuprates and Fe-based Superconductors |
| 1016 | Microwave spectroscopy of two-dimensional superconductivity at LaAlO3/SrTiO3(111) interfaces | Lesne, Edouard; Saglam, Yildiz; Kounalakis, Marios; Gabay, Marc; Steele, Gary; Caviglia, Andrea | Here, in order to study superconductivity at the LAO/STO(111) interface, we have designed embedded SC coplanar waveguide resonators, whose resonance frequency can be tuned by electrostatic gating through a concomitant change of the 2DES kinetic inductance. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1017 | Discovery of two-dimensional anisotropic superconductivity at KTaO3 (111) interfaces | Liu, Changjiang; Yan, Xi; Jin, Dafei; Ma, Yang; Hsiao, Haw-Wen; Lin, Yulin; Bretz-Sullivan, Terence; Zhou, Xianjing; Pearson, John; Fisher, Brandon; Jiang, J; Han, Wei; Zuo, Jian-Min; Wen, Jianguo; Fong, Dillon; Sun, Jirong; Zhou, Hua; Bhattacharya, Anand | Here we observe superconductivity in electron gases formed at interfaces between (111) oriented KTaO 3 and insulating overlayers of either EuO or LaAlO 3. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1018 | Unexpected two-fold symmetric superconductivity in few-layer NbSe2 | Hamill, Alex; Heischmidt, Brett; Sohn, Egon; Shaffer, Daniel; Tsai, Kan-Ting; Zhang, Xi; Xi, Xiaoxiang; Suslov, Alexey; Berger, Helmuth; Forro, Laszlo; Burnell, Fiona; Shan, Jie; Mak, Kin Fai; Fernandes, Rafael; Wang, Ke; Pribiag, Vlad | In contrast to the three-fold symmetry of the lattice, we observe the magnetoresistance, critical field, and differential conductance measurements all exhibit a two-fold oscillation confined to the superconducting phase. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1019 | The effects of charge carriers, organic solvents and magnetic ions on the superconductivity of doped 1T-SnSe2 | Wu, Hanlin; Li, Sheng; Petit, Daniel Peirano; Lv, Bing | In this presentation, we focus on more chemical doping studies that close to the insulator-superconducting transition regime, more precisely-controlled doping level and various organic molecules have been tested through soft chemical methods. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1020 | Co-appearance of high-Tc superconductivity and ferromagnetism in a Ca2RuO4 nanocrystal | Nobukane, Hiroyoshi; Yanagihara, Kosei; Kunisada, Yuji; Ogasawara, Yunito; Isono, Kakeru; Nomura, Kazushige; Tanahashi, Keita; Nomura, Takahiro; Akiyama, Tomohiro; Tanda, Satoshi | We report the realization of high-temperature superconductivity in Ca 2RuO 4 nanofilm single crystals. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1021 | Yu-Shiba-Rusinov states in Van Hove superconductors | Uldemolins, Mateo; Mesaros, Andrej; Simon, Pascal | We study YSR states in two-dimensional superconductors with Fermi level tuned to a Van Hove singularity in the energy dispersion. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1022 | Quantum Geometric Contributions to the BKT Transition: Beyond Mean Field Theory | Wang, Zhiqiang; Chaudhary, Gaurav; Chen, Qijin; Levin, Kathryn | We study quantum geometric contributions to the Berezinskii-Kosterlitz-Thouless (BKT) transition temperature, $T_{\mathrm{BKT}}$, in the presence of fluctuations beyond BCS theory. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1023 | Antiferromagnetic and superconducting order parameters and critical temperatures in the two-dimensional Hubbard model | Vilardi, Demetrio; Bonetti, Pietro; Metzner, Walter | We analyse the competition of antiferromagnetism and superconductivity in the two-dimensional Hubbard model at moderate coupling. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1024 | The crossover between the orbital and paramagnetic limits in angle dependence of Hc2 of 2D NbSe2 | Matsuoka, Hideki; Nakano, Masaki; Shitaokoshi, Takashi; Ouchi, Takumi; Wang, Yue; Kashiwabara, Yuta; Yoshida, Satoshi; Ishizaka, Kyoko; Kawasaki, Masashi; Kohama, Yoshimitsu; Nojima, Tsutomu; Iwasa, Yoshihiro | Here we report the angle dependence of H c2 in 2D NbSe 2, which turned out to exhibit the cusp-like behavior around the parallel fields even far below the superconducting critical temperature despite that H c2|| is dominated purely by the paramagnetic effect [1]. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1025 | Capping layer influence and isotropic in-plane upper critical field of the superconductivity at the FeSe/SrTiO3 interface | Li, Yanan; Wang, Ziqiao; Xiao, Run; Li, Qi; Wang, Ke; Richardella, Anthony; Wang, Jian; Samarth, Nitin | We report a study of the influence of a capping layer on superconductivity in thin films of FeSe grown on SrTiO3 using molecular beam epitaxy. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1026 | Local magnetic measurements of a few-layer van der Waals superconductor | Jarjour, Alexander; Ferguson, George; Schaefer, Brian; Lee, Menyoung; Chowdhury, Debanjan; Nowack, Katja | We combine the magnetic measurements with simultaneous electrical transport and map out changes in superfluid stiffness as a function of temperature and carrier density across the dome. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1027 | Raman response modelling in multiband superconductors with competing order parameter symmetries | Benek-Lins, Igor; Maiti, Saurabh | We will present our results for two-band models and discuss the implications for the five-band system Ba 1−xK xFe 2As 2. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1028 | Uniaxial strain effects on Superconducting nano-wires at LaAlO3/SrTiO3 interface | Wu, Xinyi; Li, Jianan; Briggeman, Megan; Albro, Joseph; Lee, Jungwoo; Lee, Hyungwoo; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | Here we focus on the effects of uniaxial stress on the transport of superconducting quantum wires formed at the LaAlO 3/SrTiO 3 interface. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1029 | The Zeeman, Spin-Orbit, and Quantum Spin Hall Interactions in Anisotropic and Low-Dimensional Conductors | Zhao, Aiying | We show the anisotropic Dirac equation satisfies the most general proper Lorentz transformations and improper Lorentz transformations . | Session 75: One and Two Dimensional Superconductivity 2 |
| 1030 | Role of the pinning effect on quantum phase transition in superconducting Ta thin films with the addition of artificial periodic pinning centers | Shin, Junghyun; Park, Sungyu; Noh, Suhyeon; Kim, Eunseong | In order to study the influence of vortex pinning effect on the superconductor-insulator transition, we introduced periodic hole arrays as strong pinning centers into superconducting tantalum thin films which are representative weakly disordered films where metallic behavior was reported. | Session 75: One and Two Dimensional Superconductivity 2 |
| 1031 | Anomalous Higgs oscillations mediated by Berry curvature and quantum metric | Villegas, Kristian Hauser; Yang, Bo | In this work we show that the Berry curvature and the quantum metric of bands play a central role in the Higgs mode generation. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1032 | Low-energy quasiparticle excitations in the spin-triplet superconductor UTe2 | Ishihara, Kota; Roppongi, Masaki; Kobayashi, Masayuki; Mizukami, Yuta; Hashimoto, Kenichiro; Sakai, Hironori; Haga, Yoshinori; Shibauchi, Takasada | Thus, we performed the magnetic penetration depth measurements using a tunnel diode oscillator with the ac magnetic field along each crystallographic axis. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1033 | Temperature-dependent anisotropy of London pen- etration depth in single-gap weak-coupling model | Prozorov, Ruslan; Kogan, Vladimir | Here we use weak-coupling self-consistent theory applied to various types of the order parameter and show that all types of the temperature dependencies of γ λ( T ) are possible in a single- gap scenario. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1034 | Investigation of Local Nonlinear Microwave Response of Nb3Sn in the Superconducting State | Wang, Chung-Yang; Oripov, Bakhrom; Anlage, Steven | We study the 3rd harmonic response as a function of rf field amplitude and temperature. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1035 | Theory of optical responses in clean multiband superconductors | Ahn, Junyeong; Nagaosa, Naoto | In this talk, we establish the conditions for nonzero intrinsic momentum-conserving optical excitations. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1036 | Hyperbolic Cooper-pair polaritons in layered graphene/cuprate heterostructure | Kim, Brian; Berkowitz, Michael; Vitalone, Rocco; Jing, Ran; Ni, GuangXin; McLeod, Alexander; Lo, Chiu Fan Bowen; Sun, Zhiyuan; Gu, Genda; Watanabe, Kenji; Taniguchi, Takashi; Millis, Andrew; Hone, James; Fogler, Michael; Averitt, Richard; Basov, Dmitri | Importantly, we show that the degree of hybridization can be selectively controlled by tuning the interlayer hBN thickness with atomic precision. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1037 | Relaxation time-scales and electron-phonon coupling in optically-pumped YBa2Cu3O6+x revealed by time-resolved Raman scattering | Pellatz, Nick; Roy, Susmita; Lee, Jungwoo; Schad, Jonathon; Kandel, Hom; Arndt, Nathan; Eom, Chang-Beom; Reznik, Dmitry | Analysis based on the two-temperature model revealed temperature-independent electron-phonon coupling with λ ≈ 0.8 as well as significant anharmonicity that increased with temperature. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1038 | Emergence of superconductivity in several transition metal chalcogenides | Tan, Chiou Yang; Biniskos, Nikolaos; Hameed, Sajna; Pelc, Damjan; Li, Yuan; Zhu, Xiangde; Petrovic, Cedomir; Greven, Martin | We use AC nonlinear magnetic response, a probe that was recently shown to be highly sensitive to SC fluctuations [3], to correlate the diamagnetic response above the superconducting transition temperature with the substitutional disorder. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1039 | Low-energy quasiparticle excitations in a BiCh2-based superconductor studied by magnetic penetration depth measurements | Roppongi, Masaki; Ishihara, Kota; Mizukami, Yuta; Hashimoto, Kenichiro; Hoshi, Kazuhisa; Mizuguchi, Yoshikazu; Shibauchi, Takasada | Here, we report on high-resolution measurements of the magnetic penetration depth in single crystals of LaO 0.5F 0.5BiSSe, which is a sensitive probe of low-energy quasiparticle excitations. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1040 | Characterization of Magnetic and Infrared Radiation Shielding with High Quality Superconducting Microwave Resonators | HAJR, AHMED; Banerjee, Archan; Berk, Cassidy; Kreikebaum, John Mark; Altoe, Virginia; Santiago, David; Ogletree, D. Frank; Siddiqi, Irfan | Here we present a systematic study of the effect of shielding on CPW resonators and we find that magnetic shielding as well as shielding from IR radiation are both crucial to obtain internal quality factors (Qi) greater than five million in the single photon excitation regime. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1041 | Optical Manipulation of Domains in Chiral Topological Superconductors | Yu, Tao; Claassen, Martin; Kennes, Dante; Sentef, Michael | Here we study topological superconductors with two chiral order parameters coupled via light fields by a time-dependent real-space Ginzburg-Landau approach. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1042 | Measuring the Casimir energy in a superconducting cavity | Som, Abhishek; Bishop, David; Campbell, David | Since its theoretical prediction in 1948, the Casimir effect has continued to attract considerable interest in the scientific community, with most studies focusing on calculating Casimir forces, which are attractive in the normal configuration of a metallic cavity. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1043 | Superconducting cavities under large RF fields: A dissipation mechanism in the Bogoliubov-de Gennes formalism | Deyo, Sean; Liarte, Danilo; Kelley, Michelle; Sitaraman, Nathan; Oseroff, Thomas; Liepe, Matthias; Arias, Tomas; Sethna, James | We numerically solve the Bogoliubov-de Gennes equations at the surface of a superconductor in a parallel magnetic field, finding that at large fields there are quasiparticle surface states with energies below the bulk value of the superconducting gap. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1044 | Scanning SQUID characterization of extremely overdoped La2-xSrxCuO4 | Herrera, Chloe; Franklin, Jacob; He, Xi; Bozovic, Ivan; Sochnikov, Ilya | In the present paper, we use local scanning SQUID measurements that probe the susceptibility of the sample on the scale L << Λ P. | Session 76: Superconductivity: Response to Electromagnetic Fields-Surface Impedance, Optical, Raman, etc. |
| 1045 | Transmission Amplitude through a Coulomb blockaded Majorana Wire | Thamm, Matthias; Rosenow, Bernd | We study electronic transport through a Coulomb blockaded superconducting Rashba wire in the co-tunneling regime between conductance resonances. | Session 77: Topological Superconductivity: Majorana Modes |
| 1046 | Modeling transport in the Coulomb blockade regime in realistic Majorana nanowires | Lai, Yi-Hua; Sau, Jay | We will derive the generalized Meir-Wingreen formula from the rate equations in this work. | Session 77: Topological Superconductivity: Majorana Modes |
| 1047 | Double Majorana vortex zero modes in superconducting topological crystalline insulators with surface rotation anomaly | Kobayashi, Shingo; Furusaki, Akira | We show that the proximity-induced s-wave superconductivity on the surface of these TCIs yields a topological superconducting phase in which two Majorana zero modes are bound to a vortex, and that n-fold rotation symmetry (n = 2, 4, 6) enriches the topological classification of a superconducting vortex from Z 2 to Z 2 ×Z 2. | Session 77: Topological Superconductivity: Majorana Modes |
| 1048 | Majorana signatures in charge transport through a topological superconducting double-island system | Vayrynen, Jukka; Pikulin, Dmitry; Lutchyn, Roman | We propose dc and ac transport experiments for measuring E M, and discuss their limitations due to intrinsic dephasing mechanisms such as excited quasiparticles. | Session 77: Topological Superconductivity: Majorana Modes |
| 1049 | Quantum-critical dynamics of a Josephson junction at the topological transition | Kurilovich, Vladislav; Murthy, Chaitanya; Kurilovich, Pavel; Van Heck, Bernard; Glazman, Leonid; Nayak, Chetan | We investigate signatures of this quantum phase transition in the microwave response of a nanowire Josephson junction. | Session 77: Topological Superconductivity: Majorana Modes |
| 1050 | Majorana fermions in p-wave superconducting wire | Zarea, Mehdi; Sauls, James | We present a simple model of interacting electrons which in mean-field approximation reproduced Kitaev fermions but when it is solved exactly does not show them. | Session 77: Topological Superconductivity: Majorana Modes |
| 1051 | Braiding Floquet Majorana Modes in 1D Topological Superconductors | Truong, Bill; Pereg-Barnea, Tami | Recent work has established that Majorana zero modes can be braided in a single, clean Kitaev chain with a Floquet drive. | Session 77: Topological Superconductivity: Majorana Modes |
| 1052 | Reducing Majorana Hybridization via Periodic Driving | Min, Brett; Martin, Ivar; Pereg-Barnea, Tami; Agarwal, Kartiek | We demonstrate that the current protocol reduces a non-zero hybridization energy that manifests from imperfect Majoranas by orders of magnitude. | Session 77: Topological Superconductivity: Majorana Modes |
| 1053 | An architecture for "draiding" majoranas for quantum computing | Agarwal, Kartiek; Martin, Ivar | We propose and analyze a family of periodic braiding protocols in systems with multiple localized Majorana modes (majoranas) for the purposes of Hamiltonian engineering. | Session 77: Topological Superconductivity: Majorana Modes |
| 1054 | Topological superconductors with periodically modulated magnetic fields: Andreev vs Majorana bound states, and emergent supersymmetry | Marra, Pasquale; Inotani, Daisuke; Nitta, Muneto | We will show that, if the field amplitude is not uniform, these systems can exhibit also topologically nontrivial Andreev bound states[1], which correspond to a topological invariant, the particle-hole Chern number, defined in a synthetic two-dimensional space in analogy to the spin Chern number of quantum spin Hall systems. | Session 77: Topological Superconductivity: Majorana Modes |
| 1055 | Stability of topological superconducting qubits with number conservation | Lapa, Matthew; Levin, Michael | In this work we rigorously prove that properties (i) and (ii) hold in a number-conserving toy model of two topological superconducting wires coupled to the same bulk superconductor. | Session 77: Topological Superconductivity: Majorana Modes |
| 1056 | Corner states in a second-order topological superconductor and their braiding | Pahomi, Tudor; Sigrist, Manfred; Soluyanov, Alexey | We model a second-order topological phase realized in a thin-film p-wave superconductor under the influence of an in-plane Zeeman field and proximity-induced spin-singlet pairing. | Session 77: Topological Superconductivity: Majorana Modes |
| 1057 | Quantum doubles in one dimension | Albert, Victor; Aasen, David; Xu, Wenqing; Ji, Wenjie; Preskill, John; Alicea, Jason | By relating Majorana and parafermion modes to anyonic strings, we develop quantum-double generalizations of non-Abelian defects. | Session 77: Topological Superconductivity: Majorana Modes |
| 1058 | Volkov-Pankratov states and topological superconductivity in Pb monolayers | Alspaugh, David; Sheehy, Daniel; Goerbig, Mark; Simon, Pascal | We study the in-gap states that appear at the boundaries of both one- and two-dimensional topological superconductors. | Session 77: Topological Superconductivity: Majorana Modes |
| 1059 | Eta-Pairing in Hubbard Models: From Spectrum Generating Algebras to Quantum Many-Body Scars | Moudgalya, Sanjay; Regnault, Nicolas; Bernevig, Andrei | We revisit the eta-pairing states in Hubbard models and explore their connections to quantum many-body scars to discover a universal scars mechanism. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1060 | From tunnels to towers: quantum scars from Lie algebras and q-deformed Lie algebras | O’Dea, Nicholas; Burnell, Fiona; Chandran, Anushya; Khemani, Vedika | We present a general symmetry-based framework for obtaining many-body Hamiltonians with scarred eigenstates that do not obey the eigenstate thermalization hypothesis. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1061 | Field tuning to avoid the heat death of a charge-density-wave chain | Freericks, James; Weber, Manuel | This work shows that one can engineer nontrivial nonequilibrium steady states when fermions are coupled to low-energy bosons. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1062 | Theory of Resonances in Floquet Scattering | Dauer, Christoph; Pelster, Axel; Eggert, Sebastian | In this talk we provide a deeper understanding of these driving induced resonances by introducing a theory of Floquet resonances. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1063 | Analog reheating of the early universe in the laboratory | Geier, Kevin; Chatrchyan, Aleksandr; Oberthaler, Markus; Berges, Jürgen; Hauke, Philipp | To shed light on the nature of this process, we propose a quantum simulation of cosmic reheating in an ultracold Bose gas. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1064 | Adiabatic eigenstate deformations as a sensitive probe for quantum chaos | Pandey, Mohit; Claeys, Pieter; Campbell, David; Polkovnikov, Anatoli; Sels, Dries | In this work, we show that the norm of the adiabatic gauge potential, the generator of adiabatic deformations between eigenstates, serves as a much more sensitive measure of quantum chaos. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1065 | Fate of quantum many-body scars in the presence of disorder | Mondragon, Ian; Vavilov, Maxim; Martin, Ivar | In this talk, we show, using a model of interacting disordered Rydberg atoms, that non-ergodic oscillations continue to occur near the same frequency of the clean system. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1066 | Nonergodic Quantum Dynamics from Deformations of Classical Cellular Automata | Iadecola, Thomas; Vijay, Sagar | We show that families of periodically-driven (Floquet) quantum dynamics that include a classical CA in a special limit retain certain nonthermal eigenstates of the CA. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1067 | Dissipation-induced collective excitations and nonequilibrium phase transition in fermionic superfluids | Yamamoto, Kazuki; Nakagawa, Masaya; Tsuji, Naoto; Ueda, Masahito; Kawakami, Norio | In this talk, we theoretically investigate collective excitations and a nonequilibrium phase transition of fermionic superfluids driven by sudden switch-on of two-particle loss, for which we extend the BCS theory to fully incorporate quantum jumps [2]. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1068 | Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas | Schleier-Smith, Monika | Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1069 | Minimal Model for Fast Scrambling | Belyansky, Ron; Bienias, Przemyslaw; Kharkov, Yaroslav; Gorshkov, Alexey; Swingle, Brian | We study quantum information scrambling in spin models with both long-range all-to-all and short-range interactions. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1070 | Correspondence principle for many-body scars in ultracold Rydberg atoms | Turner, Christopher; Desaules, Jean-Yves; Bull, Kieran; Papic, Zlatko | Here we provide a conceptually simple analytic construction of quasimodes for the non-integrable Rydberg atom model, and prove that they arise from a “requantisation” of previously established periodic orbits when quantum fluctuations are restored to all orders. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1071 | Quantum phonon lasing with mixed species trapped ions | Nguyen, Thanh Long; Behrle, Tanja; Reiter, Florentin; Home, Jonathan | To explore this direction, we implement QRE on a mixed species ion crystal consisting of a calcium ion and a beryllium ion. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1072 | Anomalous Diffusion in Dipole- and Higher-Moment Conserving Systems | Feldmeier, Johannes; Sala de Torres-Solanot, Pablo; De Tomasi, Giuseppe; Pollmann, Frank; Knap, Michael | Modelling the time evolution as cellular automata for specific cases of dipole- and quadrupole-conservation, we numerically find distinct anomalous exponents of the late time relaxation. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1073 | Scattering of mesons in quantum simulators | Surace, Federica Maria; Lerose, Alessio | Considering for definiteness a (1 + 1)-dimensional Z2-lattice gauge theory realizable with Rydberg-atom arrays, we solve the meson scattering problem exactly in the limit of large fermion mass and for arbitrary coupling strength. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1074 | Spin squeezing dynamical phase transition in the power-law XXZ model | Perlin, Michael A.; Qu, Chunlei; Rey, Ana Maria | We investigate spin squeezing dynamics in an XXZ model with interactions that fall off with distance r as 1/rα in D=2 and 3 spatial dimensions. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1075 | Subharmonic stabilization of quantum many-body scars in Rydberg atom arrays | Bluvstein, Dolev; Omran, Ahmed; Levine, Harry; Keesling, Alexander; Semeghini, Giulia; Ebadi, Sepehr; Wang, Tout; Michailidis, Alexios; Maskara, Nishad; Ho, Wen Wei; Serbyn, Maksym; Greiner, Markus; Vuletic, Vladan; Lukin, Mikhail | For specific initial states on a wide variety of bipartite lattices, we observe collapses and revivals of the order parameters, corresponding to quantum many-body scars, and explore their thermalization mechanisms. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1076 | Observation of a Dynamical Phase Transition in a Quantum Simulator of Lipkin-Meshkov-Glick Model using Bosonic Gases | Chu, Anjun; Will, Johannes; Arlt, Jan; Klempt, Carsten; Rey, Ana Maria | We theoretically propose and experimentally demonstrate the use of motional sidebands in a trapped thermal ensemble of 87Rb atoms to engineer tunable long-range XXZ spin models. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1077 | Non-equilibrium dynamics of a 2D Bose gas near a critical point | Sunami, Shinichi; Garrick, David; Beregi, Abel; Barker, Adam; Luksch, Kathrin; Bentine, Elliot; Foot, Christopher | We report experimental measurements of the relaxation dynamics of 2D Bose gases following the coherent splitting into two 2D clouds. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1078 | Many-Body Dephasing in Long-range Transverse-field Ising Chain with Trapped Ions | Guo, Lingzhen; Kaplan, Harvey; Tan, Wen Lin; De, Arinjoy; Marquardt, Florian; Pagano, Guido; Monroe, Christopher | Based on the eigenstate thermalization hyperthesis (ETH), we develop a non-perturbative method to get the analytical expresssion for the temopral fluctuations. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1079 | Hypergrid subgraphs and the origin of many-body scars in constrained quantum systems | Desaules, Jean-Yves; Bull, Kieran; Turner, Christopher; Papic, Zlatko | We explicitly identify such substructures in several constrained spin models known to host quantum many-body scars. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1080 | Emergent symmetries and slow quantum dynamics in a Rydberg chain with confinement | Chen, I Chi; Iadecola, Thomas | The PXP model describes the dynamics of such systems in the strongly interacting Rydberg blockade regime and notably exhibits weakly nonergodic dynamics due to quantum many-body scars. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1081 | Time crystal in a static cavity QED Hamiltonian | Rahmanian Koshkaki, Saeed; Kolodrubetz, Michael | In this work, we study how localization in the presence of a long-range coupling can hosts new symmetry breaking and topological phases with non-trivial correlations. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1082 | Nonadiabatic Phase Transition with Broken Chiral Symmetry | Sinitsyn, Nikolai; Yan, Bin; Chernyak, Vladimir; Zurek, Wojciech | We explore nonadiabatic quantum phase transitions in an Ising spin chain with a linearly time-dependent transverse field and two different spins per unit cell. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1083 | Localization and criticality in antiblockaded 2D Rydberg atom arrays | Liu, Fangli; Yang, Zhicheng; Bienias, Przemyslaw; Iadecola, Thomas; Gorshkov, Alexey | We propose to use quench dynamics to probe the three different regimes experimentally. | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1084 | George E. Valley, Jr. Prize | Yao, Norman | George E. Valley, Jr. Prize | Session 78: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1085 | Toric code topological order in a Rydberg blockaded model | Verresen, Ruben; Lukin, Mikhail; Vishwanath, Ashvin | Here we demonstrate that this topological phase can be found in a two-dimensional Rydberg atom array. | Session 79: Spin Liquids |
| 1086 | Time-domain anyon interferometry in Kitaev honeycomb spin liquids and beyond | Klocke, Kai; Aasen, David; Mong, Roger; Demler, Eugene; Alicea, Jason | Motivated by recent experiments on the Kitaev honeycomb magnet α-RuCl 3, we introduce time-domain probes of the edge and quasiparticle content of non-Abelian spin liquids. | Session 79: Spin Liquids |
| 1087 | Impurity-induced resonant spinon zero modes in Dirac quantum spin liquids | Chen, Guangze; Lado, Jose | Here we show that magnetic S=1/2 impurities create resonant spinon zero modes in Dirac quantum spin liquids at zero energy. | Session 79: Spin Liquids |
| 1088 | Anisotropic magnetic interactions in Kitaev magnet YbCl3 | Yadav, Ravi; Nishimoto, Satoshi; Reja, Sahinur; Ray, Rajyavardhan; Yazyev, Oleg | In this work, we study the recently synthesized rare-earth Kitaev magnet YbCl 3. | Session 79: Spin Liquids |
| 1089 | Cavity-induced quantum spin liquids | Chiocchetta, Alessio; Kiese, Dominik; Piazza, Francesco; Diehl, Sebastian | In this talk, I will propose a novel mechanism to stabilise quantum spin liquid states by exploiting the coupling of quantum magnets to the quantised light of an optical cavity. | Session 79: Spin Liquids |
| 1090 | Toward Kitaev’s Sixteenfold Way in a Honeycomb Lattice Model | Zhang, Shangshun; Batista, Cristian; Halasz, Gabor | For each topological order, we explicitly identify the anyonic excitations and confirm their topological properties. | Session 79: Spin Liquids |
| 1091 | Unquantized thermal Hall effect in quantum spin liquids with spinon fermi surfaces | Zhang, Yunchao; Teng, Yanting; Samajdar, Rhine; Scheurer, Mathias; Sachdev, Subir | We investigate the thermal Hall conductivity across this transition, describing how the quantized thermal Hall conductivity of the gapped state changes to an unquantized thermal Hall conductivity in the gapless spinon Fermi surface state. | Session 79: Spin Liquids |
| 1092 | Fractional Excitation Induced Giant Phonon Anomalies in the Proximate Kitaev Quantum Spin Liquid a-RuCl3 | Li, Haoxiang; Zhang, Tiantian; Said, Ayman; Fabbris, Gilberto; Mazzone, Daniel; Yan, Jiaqiang; Mandrus, David; Halasz, Gabor; Okamoto, Satoshi; Murakami, Shuichi; Dean, Mark; Lee, Ho Nyung; Miao, Hu | At high temperature, we discover interlaced optical phonons intercepting a transverse acoustic phonon between 3 and 7 meV. | Session 79: Spin Liquids |
| 1093 | Thermal Hall conductivity in the Kitaev spin liquid candidate α-RuCl3 | Lefrancois, Etienne; Grissonnanche, Gael; Gourgout, Adrien; Kelley, Paula; Yan, Jiaqiang; Balz, Christian; Mandrus, David; Nagler, Stephen; Doiron-Leyraud, Nicolas; Taillefer, Louis | In the study we present here, we examine the origin of κ xy in α-RuCl 3. | Session 79: Spin Liquids |
| 1094 | The spin transport in a SU(2)-symmetric chiral spin liquid model | Zhuang, Zekun; Marston, Brad | I will discuss edge spin transport in the Yao-Lee model when sandwiched between two spin baths with different spin biases. | Session 79: Spin Liquids |
| 1095 | Phase diagram of the anisotropic triangular lattice Hubbard model | Szasz, Aaron; Motruk, Johannes | To better connect to experimental results in spin liquid candidate materials such as k-(BEDT-TTF) 2Cu 2(CN) 3, which are not precisely isotropic, in this work we add anisotropy to the model, making one of the three distinct bonds on the lattice stronger or weaker compared with the other two. | Session 79: Spin Liquids |
| 1096 | Fractionalized fermionic quantum criticality in spin-orbital Mott insulators | Seifert, Urban; Dong, Xiao-Yu; Chulliparambil, Sreejith; Vojta, Matthias; Tu, Hong-Hao; Janssen, Lukas | We exemplify this in a square-lattice model, for which an exact mapping to a t-V model of spinless fermions allows us to make use of large-scale numerical results, as well as in a honeycomb-lattice model, for which we employ \epsilon-expansion and large-N methods to estimate the critical behavior. | Session 79: Spin Liquids |
| 1097 | Spin liquids in open quantum systems | Yang, Kang; Morampudi, Siddhardh; Bergholtz, Emil | We establish the appearance of a qualitatively new type of spin liquid with emergent exceptional band-touching behaviours when coupling to the environment. | Session 79: Spin Liquids |
| 1098 | Strongly parity-mixed superconductivity in the Rashba-Hubbard model | Nogaki, Kosuke; Yanase, Youichi | We show that the Fermi surfaces (FSs) are robust against critical magnetic fluctuations in contrast to a previous theory [2]. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1099 | Magnetic response and topology of a staggered-Rashba superconductor | Fischer, Mark; Skurativska, Anastasiia; Sigrist, Manfred; Schertenleib, Eric | In our work, we examine the situation, where inversion is broken locally in a sublattice, but retained globally. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1100 | Quasiperiodic criticality and spin-triplet superconductivity in superconductor-antiferromagnet moire patterns | Khosravian, Maryam; Lado, Jose | Here we show that systems hosting a quasiperodic modulation of antiferromagnetism and spin-singlet superconductivity, as realized by atomic chains in twisted van der Waals materials, host a localization-delocalization transition as a function of the coupling strength. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1101 | Evidence of pair-density wave in doping Kitaev spin liquid on the honeycomb lattice | Peng, Cheng; Jiang, Yi-Fan; Devereaux, Thomas; Jiang, Hong-Chen | We study the effects of doping the Kitaev spin liquid on honeycomb lattice using density-matrix renormalization group. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1102 | Surface-acoustic-wave-induced unconventional superconducting pairing | Kornich, Viktoriia; Trauzettel, Bjoern | In this work, we consider the effective electron-electron pairing due to an applied surface acosutic wave (SAW) in analogy to phonon-mediated electron-electron interaction in conventional superconductors. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1103 | Chirality polarizations and proof of spectral bulk-boundary correspondence | Daido, Akito; Yanase, Youichi | In this work, we prove SBBC via Wannier functions and the continuity equation of chirality charge. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1104 | Possible Mechanisms to Stabilize Nematic Superconductivity | Amin, Adil; Agterberg, Daniel | In this talk, we present a mechanism where a generalized spin fluctuation feedback effect can stabilize the nematic state by coupling superconductivity to electronic fluctuations [1]. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1105 | Cavity-assisted superconductivity in low-dimensional systems | Kuzmanovski, Dushko; Seoane Souto, Ruben; Balatsky, Alexander | We consider low-dimensional systems, such as helical one-dimensional edge modes on a topological material or discrete energy levels in quantum dots coupled via a cavity mode with proper polarization. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1106 | For room-temperature superconductivity, abruptly diverging Tc over a transition pressure, 225 GPa, explained by Brinkman-Rice picture | Kim, Hyun-Tak | For room-temperature superconductivity, abruptly diverging Tc over a transition pressure, 225 GPa, explained by Brinkman-Rice picture | Session 80: Superconductivity Theory: Mainly topological effects |
| 1107 | Ising Superconductivity and Magnetism in NbSe2 | Wickramaratne, Darshana; Khmelevskyi, Sergii; Agterberg, Daniel; Mazin, Igor | We use density-functional theory (DFT) calculations to quantitatively address the superconducting properties of bulk and monolayer NbSe 2 [1]. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1108 | Density wave and topological superconductivity in the magic-angle-twisted bilayer-graphene | Zhang, Ming | The model dependence in the study of the magic-angle twisted bilayer-graphene is an important issue in the research area.It has been argued previously that the two-band tight-binding model (per spin and valley) cannot serve as a start point for succeeding studies as it cannot correctly describe the topological aspect of the continuum-theory model near the Dirac nodes in the mini Brillouin zone. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1109 | Spectroscopic Evidence for a Spin- and Valley-Polarized Metallic State in a Nonmagic-AngleTwisted Bilayer Graphene | Lu, Chen | Our analysis based on the continuum model suggests that such a one-to-four split of the VHS originates from the formation of an interaction-driven spin-valley-polarized metallic state near the VHS, which is a symmetry-breaking phase that has not been identified in the MA-TBG or in other systems. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1110 | T-J model on Penrose lattice | LIU, Yubo | We studied the t-j model on the penrose lattice. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1111 | Oxide Room Temperature Superconductivity At Ambient Pressure: Computations and Experimental Verifications | Isikaku-Ironkwe, Onyedinachi-Paul | In this presentation, we share these algorithms and architectures. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1112 | Finding exotic superconducting pairing in topological semimetals | Dutta, Paramita; Parhizgar, Fariborz; Black-Schaffer, Annica | We explore the possibility of exotic superconducting pairing in topological semimetals. | Session 80: Superconductivity Theory: Mainly topological effects |
| 1113 | Singular charge fluctuations at a magnetic quantum critical point | Prochaska, Lukas; Li, Xinwei; MacFarland, Don; Andrews, Aaron Maxwell; Bonta, Maximilian; Bianco, Elisabeth; Yazdi, Sadegh; Schrenk, Werner; Detz, Hermann; Limbeck, Andreas; Si, Qimiao; Ringe, Emilie; Kono, Junichiro; Strasser, Gottfried; Buehler-Paschen, Silke | We observe frequency over temperature scaling of the optical conductivity, with a critical exponent close to 1 in agreement with the linear-in-temperature dc resistivity, over a wide temperature and frequency range [3]. | Session 81: Quantum Criticality and Exotic Excitations in Strange Metals |
| 1114 | Critical charge fluctuations at the Kondo breakdown of heavy-fermions | Komijani, Yashar; Koenig, Elio; Coleman, Piers | We study these effects in the framework of local quantum criticality and argue that soft charge fluctuations are natural consequences of an abrupt change in Fermi surface volume and the entanglement pattern that accompanies Kondo breakdown in heavy-fermion systems. | Session 81: Quantum Criticality and Exotic Excitations in Strange Metals |
| 1115 | From Dynamical Charge Scaling to Quantum Entanglement at a Kondo Destruction Quantum Critical Point | Hu, Haoyu; Cai, Ang; Yu, Zuodong; Kirchner, Stefan; Si, Qimiao | In the studies of antiferromagnetic heavy fermion metals, the notion of Kondo destruction has been developed to address this issue [1]. | Session 81: Quantum Criticality and Exotic Excitations in Strange Metals |
| 1116 | Freezing of charge degrees of freedom across a critical point in CeCoIn5 | Analytis, James; Maksimovic, Nikola; Cookmeyer, Taylor; Altman, Ehud; Nagarajan, Vikram; Oppeneer, Peter; Rusz, Jan; Hayes, Ian | By direct Hall effect and Fermi surface measurements, in comparison to ab initio calculations, we observe a critical point that connects two Fermi surfaces with different volumes without a finite-temperature symmetry breaking phase transition. | Session 81: Quantum Criticality and Exotic Excitations in Strange Metals |
| 1117 | Metallic Spin Chains: the Effects of Electronic Correlations | Aronson, Meigan | We present as well measurements on Ti 4MnBi 2, whose crystal structure features well separated chains of Mn ions. | Session 81: Quantum Criticality and Exotic Excitations in Strange Metals |
| 1118 | Predicting Electronic Properties at Metal-Oxide Interfaces | Therrien, Felix; Stevanovic, Vladan | In this work, plausible interfacial structures between Ga2O3 and different metals and oxides are found using structure matching. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1119 | Growth of the Transparent Correlated Metal SrVO3 | Shoham, Lishai; Baskin, Maria; Han, Myung-Geun; Zhu, Yimei; Kornblum, Lior | In this work we present low defect SrVO 3 films with residual resistivity ratios exceeding 15 and room temperature resistivities in the order of 30 µΩ cm. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1120 | Electric field induced charge trapping/detrapping in SrTiO3 based two dimensional electron gas | Ojha, Shashank; Hazra, Sankalpa; Mandal, Prithwijit; PATEL, RANJAN; Nigam, Shivam; Kumar, Siddharth; Middey, Srimanta | Our work on the conducting interface between defect spinel oxide γ- Al 2O 3 and cubic perovskite STO reveals that the charge trapping under +ve back gate voltage ( Vg) above the tetragonal to cubic structural transition temperature ( Tc) of STO is contributed by the electric field-assisted thermal escape of electrons from the quantum well, and the clustering of oxygen vacancies (OVs). | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1121 | Stoichiometry-Dependence of Electronic Properties in LaVO3 Thin Films | ZHANG, BIWEN; Xin, Yan; Holleman, Jade; Karapetrova, Evguenia; McGill, Stephen; Beekman, Christianne | We find that while V-rich films show behaviors that are similar to bulk LVO, films that are La-rich show remarkable differences in optical measurements, and more rich temperature-dependent transport behaviors, which indicates the presence of electronic phase separation. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1122 | Oxide Heterostructures for Water Splitting: LaFeO3 and LaNiO3 Films and Interfaces | Paudel, Rajendra; Burton, Andricus; Blanchet, Miles; Bredar, Alexandria; Matthews, Bethany; Spurgeon, Steven; Farnum, Byron; Comes, Ryan | Recent studies have shown metal oxides are efficient catalysts for OER and ORR and are less expensive. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1123 | Tuning the surface energetics of the BiVO4 (010) surface: A joint computational and experimental study | Wang, Wennie; Lee, Dongho; Zhou, Chenyu; Tong, Xiao; Chen, Emily; Favaro, Marco; Starr, David; Choi, Kyoung-Shin; Liu, Mingzhao; Galli, Giulia | We present an integrated experimental and computational study aimed at an atomistic understanding of the interaction with water on the BiVO 4 (010) surface while varying the surface termination. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1124 | Correlating polar distortions and interfacial charge at the polar/non-polar LaCrO3/SrTiO3 (001) interface | Al-Tawhid, Athby; Kumah, Divine | Correlating polar distortions and interfacial charge at the polar/non-polar LaCrO3/SrTiO3 (001) interface | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1125 | Ultrafast detection of coherent wrinkling on a freestanding functional oxide thin film | Su, Yifan; Zong, Alfred; Kogar, Anshul; Lu, Di; Hong, Seung Sae; Freelon, Byron; Rohwer, Timm; Hwang, Harold; Gedik, Nuh | In this work, by using ultrafast electron diffraction (UED), we reconstruct the real-space wrinkling dynamics due to a photoinduced coherent acoustic phonon in La2/3Ca1/3MnO3 freestanding thin films. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1126 | Characterization of Cobalt-Manganese Spinel Thin Films (CoMn2O4 and MnCo2O4) | Blanchet, Miles; Heath, Jonathan; Kaspar, Tiffany; Matthews, Bethany; Spurgeon, Steven; Bowden, Mark; Heald, Steve; Isaacs-Smith, Tamara; Kuroda, Marcelo; Comes, Ryan | Characterization of Cobalt-Manganese Spinel Thin Films (CoMn2O4 and MnCo2O4) | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1127 | Synthesis of Atomically Flat La2-xSrxCuO4 Superconducting Thin Films by Atomic-Layer-by-Layer Molecular Beam Epitaxy | Xu, Xiaotao; He, Xi; Shi, Xiaoyan; Bozovic, Ivan | We present a method of growth of atomically perfect thin films of La 2-xSr xCuO 4 (LSCO), the archetypical high-temperature copper oxide superconductor, using a custom-built molecular beam epitaxy system. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1128 | Low-temperature synthesis of BaTiO3 thin film by molecular beam epitaxy | Shin, Yeongjae; Jiang, Juan; Jia, Yichen; Walker, Frederick; Ahn, Charles | We describe our synthesis of BaTiO 3 thin films by molecular beam epitaxy at various temperatures and find that ferroelectric epitaxial BaTiO 3 can be grown at temperatures as low as ~310 °C. Using reflection high energy diffraction, we demonstrate surface mobility of BaO and TiO 2 adatoms that are high enough to promote ferroelectric crystal growth at low temperatures. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1129 | Similarities and differences between nickelate and cuprate films grown on a SrTiO3 substrate | Zhang, Yang; Lin, Ling-Fang; Hu, Wenjun; Moreo, Adriana; Dong, Shuai; Dagotto, Elbio | By introducing magnetism and electronic correlation, we observed that the d 3z2 orbital of Ni becomes itinerant while the same orbital for Cu remains doubly occupied, establishing a clear two- vs one-orbital active framework for the description of these systems. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1130 | In Situ studies of LaNiO3 growth by oxide molecular beam epitaxy | LI, YAN; Wrobel, Friederike; Yan, Xi; Bhattacharya, Anand; Sun, Jirong; Wang, Huanhua; Hong, Hawoong; Zhou, Hua; Fong, Dillon | Here, exploiting in situ synchrotron X-ray investigation during thin film growth by molecular beam epitaxy, we study and understand the growth behavior of LaNiO 3 films on (LaAlO 3)(Sr 2AlTaO 6) (001) substrates with different surface compositions, in combination with resonant anomalous diffraction measurements [2]. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1131 | Evidence of a Surface to Bulk Core Level Shift in CoFe2O4 Thin Films Grown on Al2O3 | Subedi, Arjun; Yun, Yu; Yang, Detian; Xu, Xiaoshan; Dowben, Peter | We find evidence for a surface to bulk core level shift in both the Co 2p and Fe 2p core level photoemission spectra of 5 nm CoFe 2O 4 (111) film grown on Al 2O 3 (0001). | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1132 | Ultimate strength measurement of thin SrTiO3 membranes | Harbola, Varun; Crossley, Samuel; Singh, Prastuti; Xu, Ruijuan; Hwang, Harold | Here we report measurements of the ultimate strength of SrTiO 3 thin films using an atomic force microscope (AFM) by impinging upon a freestanding drumhead with an AFM tip. | Session 82: Oxide Thin Films, Surfaces, and Interfaces |
| 1133 | Understanding the Quantum Oscillation Spectrum of Heavy-fermion Compound SmB6 | Zhang, Ruiqi; Singh, Bahadur; Lane, Christopher; Kidd, Jamin; Zhang, Yubo; Barbiellini, Bernardo; Markiewicz, Robert; Bansil, Arun; Sun, Jianwei | Our analysis shows that the topological Kondo state of SmB 6 is robust regardless of its magnetic configuration. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1134 | Metallic islands in the Kondo insulator SmB6 | Souza, Jean; Rosa, Priscila; Sichelschmidt, Jörg; Carlone, Maicon; Venegas, Pablo; Malcoms, Mario; Menegasso, Paulo; Urbano, Ricardo; Fisk, Zachary; Pagliuso, Pascoal G. | We locally explore Al-flux grown Sm 1-xGd xB 6 single crystals (0 ≤ x ≤ 0.02) with electron spin resonance (ESR) and bulk measurements [1]. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1135 | Imaging phonon-mediated hydrodynamic flow in WTe2 with cryogenic quantum magnetometry | Vool, Uri; Hamo, Assaf; Varnavides, Georgios; Wang, Yaxian; Zhou, Tony; Kumar, Nitesh; Dovzhenko, Yuliya; Qiu, Ziwei; Garcia, Christina; Pierce, Andrew; Gooth, Johannes; Anikeeva, Polina; Felser, Claudia; Narang, Prineha; Yacoby, Amir | In this work, we study hydrodynamic flow in the semimetal WTe2 to gain insight into the microscopic origin of its electron interactions. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1136 | Sondheimer oscillations as a probe of non-ohmic electron flow in type-II Weyl semimetal WP2 | van Delft, Maarten; Wang, Yaxian; Putzke, Carsten; Guo, Chunyu; Diaz, Jonas; Gotsmann, Bernd; Schmidt, Heinz; Sun, Yan; Felser, Claudia; Narang, Prineha; Moll, Philip | We present Sondheimer oscillations (SO), as a method to obtain lmr even when lmr» d. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1137 | Searching non-trivial topological phases in nonsymmorphic CeAuBi2 | Moda Piva, Mario; Clements, Eleanor M.; Tartaglia, Rodolfo; Freitas, Gabriel S.; Souza, Jean C.; Christovam, Denise S.; Thomas, Sean; Leao, Juscelino B.; Ratcliff, William; Lynn, Jeffrey; Lane, Christopher; Zhu, Jian-Xin; Thompson, Joe; Rosa, Priscila; Adriano, Cris; Granado, Eduardo; Pagliuso, Pascoal G. | Here, we report the properties of stoichiometric CeAuBi 2. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1138 | Conductivity tensor in quantum critical systems involving Dirac fermions | Martin, Simon; Witczak-Krempa, William | We study the longitudinal and Hall conductivity in a deformed Dirac fermions CFT and in the Gross-Neveu model in large N in 2+1 dimensions. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1139 | Fermionic quantum criticality with long-range correlated disorder | Yerzhakov, Hennadii; Maciejko, Joseph | For the XY and Heisenberg models, we find a supercritical Hopf bifurcation accompanied by unusual critical behavior controlled by a stable limit cycle. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1140 | Thermo-electric response close to the Dirac point: The role of particle-hole pairs | Pongsangangan, Kitinan; Grubinskas, Simonas; Fritz, Lars | We investigate whether the customary two fluid Boltzmann treatment of electrons and holes and their inelastic scattering correctly captures the heat conductivity. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1141 | A Resonant Inelastic X-ray Scattering investigation of the 4f states in SmB6 | Amorese, Andrea; Stockert, Oliver; Kummer, Kurt; Brookes, Nicholas; Kim, Dae-Jeong; Fisk, Zachary; Haverkort, Maurits; Thalmeier, Peter; Tjeng, Liu; Severing, Andrea | We find that the quartet Γ 8 ground state 4 and the doublet Γ 7 excited state are split by Δ=20meV±10meV. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1142 | Field-induced exotic metal in Kondo insulator YbB12 | Xiang, Ziji; Chen, Lu; Chen, Kuan-Wen; Tinsman, Colin; Sato, Yuki; Asaba, Tomoya; Lu, Helen; Kasahara, Yuichi; Jaime, Marcelo; Balakirev, Fedor; Iga, Fumitoshi; Matsuda, Yuji; Singleton, John; Li, Lu | We systematically studied the high field metallic state in YbB 12 in pulsed magnetic fields. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1143 | Anisotropic conductivity in monolayer WTe2 | Sun, Bosong; Malinowski, Paul; Fei, Zaiyao; Palomaki, Tauno; Huang, Xiong; Runburg, Elliott; Cui, Yongtao; Chu, Jiun-Haw; Xu, Xiaodong; Cobden, David | We consider the implications of this observation for the possibility that the state is a kind of excitonic insulator. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1144 | Exploring Eu5In2Sb6, a non-symmorphic antiferromagnetic insulator: from macroscopic to atomic length scales | Ale Crivillero, Maria; Roessler, Sahana; König, Markus; Müller, Jens; Rosa, Priscila; Wirth, Steffen | We combine STM/STS with bulk measurements to investigate the Zintl phase Eu 5In 2Sb 6, a non-symmorphic antiferromagnetic insulator. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1145 | Magnetic and Magnetotransport Study on Single Crystals of TbMn6Sn6 | Jones, David; Siegfried, Peter; Ghimire, Madhav; Mazin, Igor; Ghimire, Nirmal | Here we present our recent findings on the role of the rare-earth metal terbium in the complex interplay of magnetism and topology in the electronic structure of TbMn 6Sn 6. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1146 | Monopole hierarchy at a quantum critical point between a Dirac spin liquid and an antiferromagnet | Dupuis, Eric; Witczak-Krempa, William | We describe the organization of monopoles in multiplets of the QCP flavor symmetry group SU(2) x SU(N). | Session 83: Strong Electronic Correlations in Topological Materials |
| 1147 | Gapless neutral fermions in insulating YbIr3Si7 revealed by specific heat and thermal conductivity | Sato, Yuki; Tominaga, Takahiro; Suetsugu, Shota; Kasahara, Shigeru; Kasahara, Yuichi; Peters, Robert; Kitagawa, Shunsaku; Ishida, Kenji; Nevidomskyy, Andriy; Qian, Long; Moya, Jaime; Stavinoha, Macy; Morosan, Emilia; Matsuda, Yuji | Here we present specific heat C and thermal conductivity κ measurements of YbIr 3Si 7. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1148 | Phonon Hall viscosity from spinon interactions | Teng, Yanting; Zhang, Yunchao; Samajdar, Rhine; Scheurer, Mathias; Sachdev, Subir | Here, we study the coupling of spinon excitations to phonons in a model that captures the magnetic-field-driven transition from the square-lattice Néel state to a state where Néel order coexists with a chiral spin liquid. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1149 | Non-Abelian chiral spin liquid in the frustrated spin-1 quantum antiferromagnet on the square lattice | Huang, Yixuan; Zhu, Wei; Jiang, Hong-Chen; Sheng, Donna | We investigate the ground state properties of the spin-1 antiferromagnetic Heisenberg J1-J2 model supplemented by time-reversal symmetry breaking chiral interaction on the square lattice using density-matrix renormalization group. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1150 | Multipole Insulators and Higher-Form symmetries | Dubinkin, Oleg; Rasmussen, Alexander; Hughes, Taylor | We present a suitable refinement of the notion of an insulator by investigating a class of systems that conserve both the total charge and the total dipole moment. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1151 | Computing the Classification of Fermionic Symmetry-Protected Topological States | Ouyang, Yunqing; Wang, Qing-Rui; Gu, Zhengcheng; Qi, Yang | Computing the Classification of Fermionic Symmetry-Protected Topological States | Session 83: Strong Electronic Correlations in Topological Materials |
| 1152 | Hubbard parent model for Haldane-AKLT S=1 spin chains | Catarina, Goncalo; Ortiz Cano, Ricardo; Fernández-Rossier, Joaquín | We propose a lattice built with dimers of uncompensated bipartite blocks, that balance each other to give a compensated lattice. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1153 | New perspective on the Laughlin state from classical constrain | Ha Quang, Trung; Yang, Bo | We present a new framework of understanding the fractional quantum Hall (FQH) state at filling factor ν = n+1/3 in terms of the quasihole excitation of a different FQH state – the Gaffnian. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1154 | An exactly solvable model for fractional quantum Hall effect | Ganesh Jaya, Sreejith; Anand, Abhishek; Jain, Jainendra | We present a model Hamiltonian for spinless electrons in a magnetic field with strong short-range interaction that lends itself to exact solutions for all low-energy states at arbitrary filling factor less than 1/2p. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1155 | Superconductivity, pseudogap, and phase separation in topological flat bands | Hofmann, Johannes; Berg, Erez; Chowdhury, Debanjan | We study a 2D model of an isolated narrow band at partial filling with local attractive interactions, using quantum Monte Carlo calculations. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1156 | Parton construction of particle-hole-conjugate Read-Rezayi parafermion fractional quantum Hall states | Coimbatore Balram, Ajit; Barkeshli, Maissam; Rudner, Mark | In this work, we use the parton framework to construct states that lie in the same phases as the particle-hole conjugates of the RR states. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1157 | Topological phases induced by interactions and spin-orbit coupling in decorated honeycomb lattices | Fernandez Lopez, Manuel; Merino, Jaime | In the search of novel interacting topological states we have analyzed the interplay of spin-orbit coupling (SOC) and on-site Coulomb interaction based on a Kane-Mele-Hubbard model on the DHL. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1158 | Chiral hinge modes in a dipole conserving lattice model | May-Mann, Julian; Hughes, Taylor | Here, we present a 3D interacting lattice model that realizes the dipolar Chern-Simons response theory, and hosts topologically protected chiral hinge modes. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1159 | Universal SPT invariants using swap operators | Pai, Shriya; Hermele, Michael | We introduce and describe many-body topological invariants/order parameters for SPT phases that involve acting with symmetry operators and a swap operator. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1160 | Unbounded Hydrodynamics in Nodal-Line Semimetals | Kim, Sang Wook; Jose, Geo; Uchoa, Bruno | By solving the quantum kinetic theory for a nodal-line semimetal in the hydrodynamic regime, we show that η/s ∝ T is unbounded, scaling towards zero with decreasing temperature T in the perturbative limit. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1161 | Microscopic theory for the nematic fractional quantum Hall effect | Yang, Bo | We analyse properties of the nematic fractional quantum Hall effect (FQHN) in the thermodynamic limit, and present necessary microscopic conditions for the FQHN to be robust. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1162 | Fractional Quantum Hall Effect from Hilbert Space Algebra and Frustration-free Hamiltonians | Wu, Ying-Hai; Yang, Bo; Papic, Zlatko | We show that model states of fractional quantum Hall (FQH) fluids for many topological phases can be uniquely determined by the Hilbert space algebra manifested as the classical reduced density matrix constraints, or the local exclusion constraint (LEC). | Session 83: Strong Electronic Correlations in Topological Materials |
| 1163 | Fragile topology and flat-band superconductivity in the strong-coupling regime | Peri, Valerio; Song, Zhida; Bernevig, Andrei; Huber, Sebastian | Here, we show via auxiliary-field Monte Carlo simulations how fragile topology enhances the superfluid weight and hence the superconducting critical temperature. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1164 | Electrostatic Interactions and Band Topology in Graphene Stacks | Pantaleon, Pierre | We investigate three such situations, (untwisted) bilayer graphene on hBN, two graphene bilayers twisted with respect to each other, and a single ABC stacked graphene trilayer on hBN. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1165 | Current-induced reversal of anomalous Hall conductance in twisted bilayer graphene | Su, Ying; Lin, Shi-Zeng | Here we present a theory on the current-induced switching of valley polarization and topology. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1166 | Exact and perturbative insulator states and excitations in twisted bilayer graphene | Lian, Biao; Song, Zhida; Regnault, Nicolas; Cowsik, Aditya; Xie, Fang; Efetov, Dmitri; Yazdani, Ali; Bernevig, Andrei | We study the low energy states of the flat-band projected Hamiltonian of magic angle twisted bilayer graphene with Coulomb interactions. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1167 | Interaction-induced topological phase transition and Majorana edge states in low-dimensional orbital-selective Mott insulators | Herbrych, Jacek; Sroda, Maksymilian; Alvarez, Gonzalo; Mierzejewski, Marcin; Dagotto, Elbio | Namely, we show that above some critical value of the Hubbard interaction, identified by the change in entropy behaviour, the system simultaneously develops spiral spin order, a highly unusual triplet amplitude in superconductivity, and, remarkably, Majorana fermions at the edges of the system. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1168 | Topologically protected, correlated end spin formation in carbon nanotubes | Zarand, Gergely; Moca, Catalin Pascu; Dora, Balazs; Legeza, Örs; Izumida, Wataru | We demonstrate using density matrix renormalization group based quantum chemistry tools that the presence of Coulomb interactions induces the formation of massive end spins [C.P. Moca et al, Phys. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1169 | Strong correlation effect in DFT-based topological characterization of Weyl-Kondo semimetals | Kidd, Jamin; Zhang, Ruiqi; Sun, Jianwei | It is commonly accepted that density functional theory (DFT) inaccurately describes materials for which the strong correlation effect (SCE), characterized by a strong inter-electronic Hubbard U, is prominent. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1170 | STM study of many body zero-energy resonance in kagome Weyl antiferromagnet Mn3Sn | Zhang, Songtian Sonia; Yin, Jiaxin; Ikhlas, Muhammad; Shumiya, Nana; Chang, Guoqing; Wang, Rui; Tsirkin, Stepan; Neupert, Titus; Nakatsuji, Satoru; Hasan, Zahid | We use scanning tunneling microscopy to elucidate the atomically resolved electronic structure in the strongly correlated kagome Weyl antiferromagnet Mn 3Sn. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1171 | Colossal anomalous Nernst effect in a correlated noncentrosymmetric kagome ferromagnet | Asaba, Tomoya; Ivanov, Vsevolod; Thomas, Sean; Savrasov, Sergey; Thompson, Joe; Bauer, Eric; Ronning, Filip | We report a large ANE in a kagome ferromagnetic uranium compound. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1172 | Towards a Topological Quantum Chemistry description of strongly correlated systems: the case of the Hubbard diamond chain | Iraola Iñurrieta, Mikel; Heinsdorf, Niclas; Lessnich, Dominik; Mertz, Thomas; Tiwari, Apoorv; Ferrari, Francesco; Winter, Stephen; Fischer, Mark; Pollmann, Frank; Neupert, Titus; Valenti, Roser; Garcia Vergniory, Maia | We address this question by considering the Hubbard diamond chain and apply TQC, together with the concept of topological Hamiltonian and Cluster Perturbation Theory, to study the different topological phases that this system exhibits and the phase transitions between them. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1173 | Symmetry protected invariants for the single-particle Green’s function of interacting topological insulators | Lessnich, Dominik; Winter, Stephen; Valenti, Roser | We extend these equivalent formalisms to interacting insulators in terms of the single-particle Matsubara Green’s function in the zero-temperature limit. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1174 | Coulomb-Engineered Topology | Roesner, Malte; Lado, Jose | Here [1] we propose a simple platform in which topologically non-trivial many-body states emerge solely from dielectrically-engineered Coulomb interactions in an otherwise topologically trivial single-particle band structure. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1175 | Dynamics properties of topological Kondo insultators | Lenk, Marvin; Kroha, Johann | With this, we aim at calculating characteristic, observable quantities, like the surface conductivity, including life-time effects. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1176 | Time reversal and lattice symmetry breaking in Nd2Ir2O7 observed by Raman scattering. | Xu, Yuanyuan; Teyssier, Jeremie; Ohtsuki, Takumi; Nakatsuji, Satoru; Van Der Marel, Dirk; Drichko, Natalia | This allows us to identify two temperature regimes, between 30 and approximately 15 K where we observe an electronic gap and developing of magnetic order related to iridium spins, and the lower temperature regime where we observe evidence of broken symmetry of the lattice. | Session 83: Strong Electronic Correlations in Topological Materials |
| 1177 | Topological semi-metallic and thermoelectric properties of layered AMSb materials | Yadav, Dinesh; Kaphle, Gopi; Paudyal, Durga | Present study is focused on the novel semi-metallic quantum properties by substituting the 3d-elements on M-sites of AMSb (A=Cs, Rb; M=Zn, Cd). | Session 83: Strong Electronic Correlations in Topological Materials |
| 1178 | Cooperative orbital moments and edge magnetoresistance in monolayer WTe2 | Arora, Arpit; Shi, Likun; Song, Justin | Here we argue that when a magnetic field is applied, the edge states of QSH insulators become highly sensitive to bulk crystalline symmetries. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1179 | Magnetoresistance Measurements of Polycrystalline and Amorphous Bi2Te3 Thin Films | Nguyen, Alexander; Akhgar, Golrokh; Cortie, David; Fuhrer, Michael; Edmonds, Mark; Karel, Julie | This talk will discuss temperature dependent magnetoresistance, Hall effect, and temperature dependent resistivity measurements of polycrystalline and amorphous Bi 2Te 3 thin films. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1180 | Fabry-Pérot resonant vortexes and magneto conductance in topological insulator constrictions with magnetic barriers | Maciel, Renan; Araujo, Augusto; Lewenkopf, Caio; Ferreira, Gerson | Here, we study the transport in one-dimensional (1D, ribbon) constrictions of two-dimensional (2D) systems, which leads to interesting phenomena, such as quantum interference between edge states. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1181 | Quantum Anomalous Hall Effect and Exchange Interaction between Magnetic Topological Insulator and Antiferromagnetic Insulator | Zhang, Peng; Pan, Lei; Grutter, Alexander; Nozaki, Tomohiro; Chambers, Scott; Xia, Jing; Wang, Kang-Lung | Here, we report molecular beam epitaxy (MBE) growth of high quality magnetically doped topological insulator (MTI) and the observation of QAH effect on an antiferromagnetic insulator Cr 2O 3. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1182 | Unconventional isotropic in-plane Hall and MR response in Bi2Se3/EuS bilayer system | Sasmal, Satyaki; Suri, Dhavala; Raman, Karthik | In this talk, we present in-plane magnetic field study on a Bi 2Se 3 (TI)/EuS (MI) bilayer device where magnetic exchange coupling is one-sided and acting only on the top surface state [2,3]. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1183 | Hybridization and Electron-Hole Symmetry Breaking Effects on the Magento-Optical Conductivity of Sb2Te3 Thin-Films | Gupta, Gaurav; Asmar, Mahmoud; Tse, Wang Kong | To discern the crucial difference between these TIs, Bi 2Se 3, and Sb 2Te 3, we study their thin-films’ magneto-optical response through a self-consistent consideration of their bulk Hamiltonians, boundary conditions, and their magneto-optical conductivity. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1184 | Anomalous Hall Effect induced by extremely low field in ZrTe5 | Mutch, Joshua; Malinowski, Paul; Jiang, Qianni; Wang, Chong; Xiao, Di; Chu, Jiun-Haw | We report detailed measurements of the anomalous hall effect (AHE) in ZrTe 5. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1185 | Low Temperature Electronic Measurements in Novel Topological Insulator-Antiferromagnetic Insulator Thin Film Heterostructures. | Van Haren, Ryan; Lederman, David | Our work shows how a NiF 2-3D TI interface can be epitaxially grown via molecular beam epitaxy and presents low temperature charge carrier measurements performed in these heterostructures. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1186 | Nanosecond dynamics in intrinsic topological insulator Bi2-xSbxSe3 revealed by time-resolved optical reflectivity | Gross, Adam; Hou, Yasen; Rossi, Antonio; Yu, Dong; Vishik, Inna | Here, we utilize ultrafast time-resolved transient reflectivity to characterize the photoexcited carrier decay in Bi 2-xSb xSe 3 nanoplatelets. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1187 | Evidence for a conducting surface state in FeSi and comparison with SmB6 | Deng, Yuhang; Breindel, Alexander; Moir, Camilla; Fang, Yuankan; Lou, Hongbo; Li, Shubin; Zeng, Qiaoshi; Shu, Lei; Wolowiec, Christian; Schuller, Ivan; Rosa, Priscila; Fisk, Zachary; Singleton, John; Maple, M Brian | Evidence for a conducting surface state in FeSi and comparison with SmB6 | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1188 | Controlled incorporation of Mn into Sb2Te3 using molecular beam epitaxy to grow highly ordered crystals | Levy, Ido; Deng, Haiming; Forrester, Candice; McCartney, Martha; Smith, David; Krusin-Elbaum, Lia; Tamargo, Maria | Here we report the growth by molecular beam epitaxy of Mn doped Sb 2Te 3 where the incorporation of Mn in the lattice can be accurately controlled. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1189 | Unconventional Proximity Driven Exchange Coupling Effects in Topological Insulator/ Ferromagnetic Insulator Bilayers | Suri, Dhavala; Bhardwaj, Archit; Saydjari, Andrew; Moodera, Jagadeesh; Raman, Karthik | We report unusual magneto-transport behavior in Bi2Te3/EuS bilayer; the exchange coupled system displays anisotropic effects through planar Hall effect (PHE) and anisotropic magnetoresistance (AMR) observations. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1190 | Mechanical dissipation via image potential states on Bi2Te3 surface | Yildiz, Dilek; Kisiel, Marcin; Gysin, Urs; Gurlu, Oguzhan; Meyer, Ernst | We studied the frictional response of the Bi 2Te 3 (0001) crystal by means of combined pendulum atomic force microscopy (AFM) and scanning tunneling microscopy (STM). | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1191 | Large Magnetoresistance and Fermi Surface Topology of SnxPb1-xTe Single Crystals | Shrestha, Keshav; Miertschin, Duncan; Sankar, Raman; Lorenz, Bernd; Chu, Ching | We have investigated the magnetotransport properties of a topological crystalline insulator, Sn xPb 1-xTe. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1192 | Large Magnetoresistance and Fermi Surface Studies of Sb2Te2-xSex Single Crystals | Nguyen, Thinh; Poudel, Narayan; Miertschin, Duncan; Chou, Mitch; Yang, Hung-Duen; Gofryk, Krzysztof; Shrestha, Keshav | We have investigated the magneto-transport properties of topological single crystals, Sb 2Te 2-xSe x. | Session 84: Topological Insulators: Magnetism and Magnetic Response |
| 1193 | Crossover of high-energy spin fluctuations from collective triplon excitations to incoherent gapped magnetic modes in the cuprate ladders of Sr14-xCaxCu24O41 | Thomas, Jinu; Tseng, Yi; Zhang, Wenliang; Paris, Eugenio; Puphal, Pascal; Bag, Rabindranath; Deng, Gouchu; Asmara, Teguh; Strocov, Vladimir; Singh, Surjeet; Pomjakushina, Ekaterina; Kumar, Umesh; Nocera, Alberto; Ronnow, Henrik; Johnston, Steven; Schmitt, Thorsten | We studied the magnetic excitations in the quasi-one-dimensional (q-1D) self-hole-doped ladder subsystem of the hybrid chain-ladder material Sr 14-xCa xCu 24O 41 (SCCO) using Cu L 3-edge resonant inelastic X-ray scattering (RIXS). | Session 85: One and Two Dimensional Superconductivity-1 |
| 1194 | Unconventional superconductivity mediated by spin fluctuations in single-layer NbSe2 | Wan, Wen; Dreher, Paul; Harsh, Rishav; Guinea, Francisco; Ugeda, Miguel | Here we report experimental evidence of unconventional Cooper pairing mediated by magnetic excitations in single-layer NbSe 2. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1195 | Ferroelectric Exchange Bias Affects Interfacial Electronic States | Tuvia, Gal; Frenkel, Yiftach; Rout, Prasanna; Silber, Itai; Kalisky, Beena; Dagan, Yoram | Ferroelectric Exchange Bias Affects Interfacial Electronic States | Session 85: One and Two Dimensional Superconductivity-1 |
| 1196 | Quantum transport in in-plane hybrid InSb-Al nanowire networks | Xu, Di; Op het Veld, Roy; Schaller, Vanessa; Jung, Jason; Wang, Qingzhen; De Moor, Michiel; Hesselmann, Bart; Vermeulen, Kiefer; Bommer, Jouri; Lee, Joon Sue; Pendharkar, Mihir; Palmstrom, Chris; Bakkers, Erik; Kouwenhoven, Leo; Zhang, Hao | Here, we demonstrate essential quantum transport properties on our novel in-plane selective-area growth InSb-Al platform which allows complex semiconductor-superconductor nanowire networks. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1197 | Non-topological zero bias peaks in full-shell nanowires induced by flux tunable Andreev states | Valentini, Marco; Peñaranda, Fernando; Hofmann, Andrea; Brauns, Matthias; Hauschild, Robert; Krogstrup, Peter; San-Jose, Pablo; Prada, Elsa; Aguado, Ramon; Katsaros, Georgios | Non-topological zero bias peaks in full-shell nanowires induced by flux tunable Andreev states | Session 85: One and Two Dimensional Superconductivity-1 |
| 1198 | Absence of Luther-Emery Phase in the three-band model for cuprate ladders | Clay, R. Torsten; Song, Jeong-Pil; Mazumdar, Sumit | We argue that due to the presence of the oxygen orbitals, the effective mass of pairs is expected to be far larger within the three-band ladder, suppressing pairing correlations [1]. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1199 | Suppression of superconductivity in the three-band Hubbard model for cuprate ladders | Song, Jeong-Pil; Mazumdar, Sumitendra; Clay, R. | We present Density Matrix Renormalization Group calculations of the spin gap and pairing correlations in the Hubbard ladder model on a copper oxide lattice with multiband topology. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1200 | Quantitative assessment of the role of spin fluctuations in the 2D Ising superconductor NbSe2 | Das, Suvadip; Mazin, Igor; Margine, Elena | In this talk, we report more accurate DFT calculations of the spin fluctuation spectrum, by calculating energies of spin spirals stabilized by artificially enhanced Hubbard interaction. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1201 | Zero energy modes to mid-gap states in one dimensional charge conserving superconductors – Exact results | Pasnoori, Parameshwar; Andrei, Natan; Azaria, Patrick | We consider one dimensional charge conserving superconductors where intrinsic attractive pairing interactions between the electrons gives rise to superconductivity. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1202 | Integration of two-dimensional transition-metal dichalcogenide superconductors into 2D-3D hybrid superconducting resonators | Sinko, Michael; Lanes, Olivia; de la Barrera, Sergio; Hatridge, Michael; Hunt, Benjamin | We created 2D-3D Josephson junction contacts with R=0 and critical currents between 0.15uA-128uA. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1203 | Fluctuation conductivity above upper critical field in ultrathin niobium films | Cieplak, Marta; Zaytseva, Iryna; Abaloszew, Aleksander; Camargo, Bruno | Fluctuating Cooper pairs surviving above upper critical field in two dimensional superconductors are predicted to introduce negative contribution to conductivity in the low temperature limit [1]. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1204 | Magnetoresistance of the superconducting and ‘stripe’ phases at EuO/KTO (111) interfaces. | Liu, Changjiang; Zhou, Xianjing; Hong, Deshun; Fisher, Brandon; Pearson, John; Jiang, J; Jin, Dafei; Bhattacharya, Anand | We will present detailed measurements of magnetoresistance in these samples over a range of temperatures. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1205 | A representation of the 12 by 12 spectral function of the Hubbard model with variational Monte Carlo | Charlebois, Maxime; Imada, Masatoshi | A method to calculate the one-body Green’s function for ground states of correlated electron materials is formulated by extending the variational Monte Carlo method. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1206 | Berezinskii-Kosterlitz-Thouless transitions in spin-triplet superconductor | Chung, Suk Bum; Kim, Se Kwon | We show how all the transitions can be characterized by the relation between the voltage drop and the spin-polarized current bias and each phase by its characteristic Josephson coupling. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1207 | Tunable Flux Vortices in 2D Dirac Superconductors | Zeytinoglu, Sina; Imamoglu, Atac; Huber, Sebastian | Here, we demonstrate how the single-particle Berry curvature associated with the normal phase in two-dimensions modifies the fluxoid quantization of a Bardeen-Cooper-Schrieffer (BCS) superconductor. | Session 85: One and Two Dimensional Superconductivity-1 |
| 1208 | Proximity effects in the charge density wave order and superconductivity in single-layer NbSe2 | Wan, Wen; Dreher, Paul; Chikina, Alla; Guo, Haojie; Harsh, Rishav; Bianchi, Marco; Gobbi, Marco; Gomez-Rodriguez, Jose-Maria; Martinez-Galera, Antonio; Hofmann, Philip; Miwa, Jill; Ugeda, Miguel | Here we explore the impact of proximity effects on the CDW and superconducting states in single-layer NbSe 2. | Session 86: Proximity Effect and Andreev Reflection |
| 1209 | Effects of SU(4) symmetry breaking on Andreev reflection in a graphene-superconductor junction in the quantum Hall regime | Cuozzo, Joseph; Rossi, Enrico | In this talk, I will discuss the effects of SU(4) symmetry breaking terms on the transport properties of a graphene-superconductor junction when the graphene is in the QH regime. | Session 86: Proximity Effect and Andreev Reflection |
| 1210 | Phase-dependent dissipation and supercurrent of a graphene-superconductor ring under microwave irradiation | Dou, Ziwei; Wakamura, Taro; Virtanen, Pauli; Wu, Nian-Jheng; Deblock, Richard; Autier-Laurent, Sandrine; Watanabe, Kenji; Taniguchi, Takashi; Gueron, Sophie; Bouchiat, Helene; Ferrier, Meydi | We argue that this is evidence of the nonequilibrium distribution function which allows additional transitions between levels on the same side of the minigap. | Session 86: Proximity Effect and Andreev Reflection |
| 1211 | Magneto-transport in Planar Graphene/d-wave Superconductor Junctions | Seurre, Kevin; Humbert, Vincent; Perconte, David; Ulysse, Christian; Sander, Anke; Trastoy, Juan; Dlubak, Bruno; Seneor, Pierre; Villegas, Javier | We have recently shown experimental evidence for proximity-induced d-wave superconductivity in graphene using planar graphene/d-wave YBaCuO 7-x (YBCO) junctions, as evidenced by the conductance dependence on bias and gate voltages [1,2]. | Session 86: Proximity Effect and Andreev Reflection |
| 1212 | Superconducting proximity effect in ultra-scaled pure Ge quantum dots. | Delaforce, Jovian; Sistani, Masiar; Kramer, Roman; den Hertog, Martien; Roch, Nicolas; Naud, Cécile; Lugstein, Alois; Buisson, Olivier | We will present the low temperature transport properties of Al-Ge-Al nanowire heterostructures with ultra-scaled Ge segments of 40 nm in length and 25 nm in dimater. | Session 86: Proximity Effect and Andreev Reflection |
| 1213 | Superconducting Proximity Effect on a Magnetically Doped Topological Insulator Controlled by Magnetization | Yano, Rikizo; Yamamoto, Masahiro; Tsumura, Kohei; Hirose, Hishiro; Stolyarov, Vasily; Tanaka, Yukio; Kashiwaya, Hiromi; Asano, Yasuhiro; Sasagawa, Takao; Kashiwaya, Satoshi | In this study, we investigated the magnetization dependence of PE on an Nb/ Fe-doped Bi 2Te 2Se Josephson junction. | Session 86: Proximity Effect and Andreev Reflection |
| 1214 | Scanning Tunneling Spectroscopy Study of the Superconducting Proximity Effect in (110)-oriented Manganite/Cuprate and Nickelate/Cuprate Thin Films | Chen, Rainni; Zhang, Chao; Granstrom, Chris; Wei, John | In this work, we extend prior STS studies to (110)-oriented films, the orientation most likely to produce d-wave Andreev resonances that show up as zero-bias conductance peaks (ZBCP). | Session 86: Proximity Effect and Andreev Reflection |
| 1215 | Interplay of proximity effects in Nb/FePd heterostructures: domain-superconductivity, spin-triplet Cooper pair generation, and the impact on the ferromagnet | Stellhorn, Annika; Sarkar, Anirban; Kentzinger, Emmanuel; Schöffmann, Patrick; Bhatnagar-Schöffmann, Tanvi; Pipich, Vitaliy; Krycka, Kathryn; Brückel, Thomas | Our goal is to investigate their interplay and tunability by an external magnetic field. | Session 86: Proximity Effect and Andreev Reflection |
| 1216 | Superconducting proximity effect and order parameter fluctuations in disordered and quasiperiodic systems | Rai, Gautam; Haas, Stephan; Jagannathan, Anuradha | We study the superconducting proximity effect in a hybrid system, where the superconducting part is homogeneous and the non-superconducting part is either disordered, modelled by the off-diagonal Anderson Hamiltonian, or quasicrystalline, modeled by a Fibonacci tight-binding Hamiltonian. | Session 86: Proximity Effect and Andreev Reflection |
| 1217 | Electrodynamic Response of a Solitary Andreev Level – Theoretical Model | Kurilovich, Pavel; Kurilovich, Vladislav; Fatemi, Valla; Devoret, Michel; Glazman, Leonid | In this talk, we describe the theory of a Josephson resonant level and show that it provides a simple, versatile, and tractable model of a solitary Andreev level in a Josephson weak link. | Session 86: Proximity Effect and Andreev Reflection |
| 1218 | Time-resolved measurement of quaiparticle tunneling between two Andreev levels in quantum dots | Malinowski, Filip; De Jong, Damaz; Han, Lin; Prosko, Christian; Liu, Yu; Krogstrup, Peter; Kouwenhoven, Leo; Koski, Jonne | We discuss whether the quasiparticle jumps originate from coherent tunneling or from quasiparticle poisoning, and the implications for the qubits based on hybrid super-semiconducting nanowires. | Session 86: Proximity Effect and Andreev Reflection |
| 1219 | Electrodynamic Response of a Solitary Andreev Level – Experimental Measurements | Fatemi, Valla; Kurilovich, Pavel; Hays, Max; Frattini, Nicholas; Bouman, Daniel; Kurilovich, Vladislav; Connolly, Thomas; Diamond, Spencer; Krogstrup, Peter; Nygard, Jesper; Geresdi, Attila; Glazman, Leonid; Devoret, Michel | In this experimental talk, we describe how the state-dependent inductive response of a Josephson semiconductor nanowire hosting a solitary Andreev level was measured with a superconducting microwave resonator. | Session 86: Proximity Effect and Andreev Reflection |
| 1220 | Engineering Crossed Andreev Reflection in Double-Bilayer Graphene | Park, Geon-Hyoung; Watanabe, Kenji; Taniguchi, Takashi; Lee, Gil-Ho; Lee, Hu-Jong | Here, we fabricated vertically stacked double bilayer graphene (BLG) connected via a superconducting electrode and achieved a spacing between BLG sheets of ∼14 nm, which is far shorter than the superconducting coherence length. | Session 86: Proximity Effect and Andreev Reflection |
| 1221 | Valley magnetism, density waves, and nematicity in twisted bilayer graphene | Chichinadze, Dmitry; Classen, Laura; Chubukov, Andrey | We analyze density wave and Pomeranchuk orders in twisted bilayer graphene. | Session 87: Spin Phenomena in 2D Systems |
| 1222 | Nematic spin density wave in magic-angle twisted bilayer graphene | Sboychakov, Artem; Rozhkov, Alexander; Rakhmanov, Alexander; Nori, Franco | Assuming that the ground state has spin-density-wave-like order, we introduce a multicomponent order parameter. | Session 87: Spin Phenomena in 2D Systems |
| 1223 | Spin-fluctuation-induced pairing in twisted bilayer graphene | Fischer, Ammon; Klebl, Lennart; Honerkamp, Carsten; Kennes, Dante | For local onsite repulsive interactions and using the random-phase approximation for spin fluctuations, we derive a microscopic effective pairing interaction that we use for self-consistent solutions of the Bogoliubov-de-Gennes equations of superconductivity. | Session 87: Spin Phenomena in 2D Systems |
| 1224 | Flat Bands in Twisted Bilayer Transition Metal Dichalcogenide with Strong Spin-orbit Interaction | Kundu, Sudipta; Naik, Mit; Krishnamurthy, Hulikal; Jain, Manish | We study the effect of spin-orbit coupling on the formation of flat bands in twisted WSe 2, which possesses strong spin-orbit interaction. | Session 87: Spin Phenomena in 2D Systems |
| 1225 | Time-reversal symmetry breaking vs spin-polarized phase from screening of Coulomb interaction in twisted bilayer graphene | Gonzalez, Jose; Stauber, Tobias | Relying on a self-consistent Hartree-Fock approach in real space, we discuss the way in which the on-site Hubbard repulsion and the screened long-range Coulomb interaction compete to drive twisted bilayer graphene into opposite symmetry breaking patterns. | Session 87: Spin Phenomena in 2D Systems |
| 1226 | Valley Spirals in Magnetically Encapsulated Twisted Bilayer Graphene | Wolf, Tobias; Zilberberg, Oded; Blatter, Johann; Lado, Jose | In this presentation, we show that twisted bilayer graphene stacked between ferromagnetic insulators features flat electronic bands due to the interplay between twist, exchange proximity, and spin-orbit coupling. | Session 87: Spin Phenomena in 2D Systems |
| 1227 | First-principles calculation of gate-tunable magnetism in twisted bilayer graphene | Chen, Xiao; Liu, Shuanglong; Cheng, Hai-Ping | In this work, with a combination of density functional theory and effective screening medium method, we systematically study the ground state of twisted bilayer graphene at magic twist angle 2.88° under pressure and simulate how the ground state evolves when doping level is gate-tuned. | Session 87: Spin Phenomena in 2D Systems |
| 1228 | Competition between spin and charge excitations in graphene with long-range Coulomb interactions | TANG, HO-KIN; Yudhistira, Indra; Ulybyshev, Maksim; Sengupta, Pinaki; Assaad, Fakher; Adam, Shaffique | Here, we use the numerically exact projective quantum Monte Carlo with a maximum entropy method for analytical continuation to find the dynamical spin and charge response of strongly interacting graphene. | Session 87: Spin Phenomena in 2D Systems |
| 1229 | Spin/Valley Flavor Symmetry Breaking in Magic Angle Twisted Bilayer Graphene | Xie, Ming; MacDonald, Allan | We analyze how details of the flat band dispersion influence the flavor symmetry breaking revealed by weak-field-Hall and Shubnikov-de Haas magneto-transport measurements [1]. | Session 87: Spin Phenomena in 2D Systems |
| 1230 | Aharonov-Bohm Oscillations in Minimally Twisted Bilayer Graphene | De Beule, Christophe; Dominguez, Fernando; Recher, Patrik | To this aim, we construct a scattering theory that captures the network physics. | Session 87: Spin Phenomena in 2D Systems |
| 1231 | Momentum resolved ground/excited states and the ultra-fast excited state dynamics of monolayer MoS2 | Lee, Woojoo; Lin, Yi; Lu, Li-Syuan; Chueh, Wei-Chen; Liu, Mengke; Li, Xiaoqin (Elaine); Chang, Wen-Hao; Kaindl, Robert; Shih, Chih-Kang | Taking advantage of recent advancements in chemical vapor deposition, here we create a wafer-size MoS 2 monolayer with well-aligned lateral orientation. | Session 87: Spin Phenomena in 2D Systems |
| 1232 | Optotwistronics in van der waals multilayers | Ji, Zhurun; Mele, Eugene; Agarwal, Ritesh | We report theoretical predictions on an unusual nonlinear optical phenomenon caused by the transfer of photon momenta to electrons in large Moire cells formed by van der waals multilayers. | Session 87: Spin Phenomena in 2D Systems |
| 1233 | Effect of long-ranged Coulomb interactions on magnetic ordering in twisted bilayer graphene | Goodwin, Zachary; Klebl, Lennart; Mostofi, Arash; Kennes, Dante; Lischner, Johannes | As a starting point, we use either a non-interacting tight-binding model or a Hartree approach that captures effects of the long-range part of the Coulomb interaction. | Session 87: Spin Phenomena in 2D Systems |
| 1234 | Large light-induced modulation of the Metal Insulator Transition in photoconductor/Mott heterostructures | Navarro, Henry; del Valle, Javier; Kalcheim, Yoav; Vargas, Nicolas; Adda, Coline; Lee, Minhan; Lapa, Pavel; Rivera, Alberto; Zaluzhnyy, Ivan; Qiu, Erbin; Shpyrko, Oleg; Rozenberg, Marcelo; Frano, Alex; Schuller, Ivan | Here we investigate the modification of the transport properties with light. | Session 88: Mott Physics |
| 1235 | Nano-scale ultrafast dynamics of Mott Insulating Ca2-xSrxRuO4 | Vitalone, Rocco; Sternbach, Aaron; Foutty, Ben; McLeod, Alexander; Sow, Chanchal; Golez, Denis; Nakamura, Fumihiko; Maeno, Yoshiteru; Narayan, Abhay; Georges, Antoine; Millis, Andrew; Basov, Dmitri | Through the thermodynamic pathway, we observe phase coexistence in the form of a stripe phase existing at the domain wall between bulk insulating and metallic regions. | Session 88: Mott Physics |
| 1236 | Soft x-ray absorption study of the doped Mott insulator Y1-xCaxTiO3 | Hameed, Sajna; Joe, Joseph; Freeland, John; Greven, Martin | We report a detailed X-ray absorption spectroscopic (XAS) study of the electronic structure across the insulator-metal transition in Y 1-xCa xTiO 3. | Session 88: Mott Physics |
| 1237 | Pseudogap universality in the doping-driven metal to Mott-insulator transition | Downey, Pierre-Olivier; KOWALSKI, Nicolas; Sordi, Giovanni; Gingras, Olivier; Hebert, Charles-David; Charlebois, Maxime; Tremblay, A.-M. | We use three different approaches : the one band model for a 2×2 square cluster using CDMFT, the three band model for a 2×2 square cluster using CDMFT, and the one-band model for a 3×2 cluster using the Dynamical Cluster Approximation (DCA). | Session 88: Mott Physics |
| 1238 | Emergence of Competing Stripe Phase near the Mott Transition in Ti-doped Bilayer Calcium Ruthenates | Gangshettiwar, Ashish; Zhu, Yanglin; Peng, Jin; Wang, Yu; Jiang, Zhanzhi; He, Jiaming; Zhou, Jianshi; Mao, Zhiqiang; Lai, Keji | Our work provides a model approach to correlate macroscopic properties and mesoscopic phase separation in complex oxides. | Session 88: Mott Physics |
| 1239 | Ultrathin, rutile Mott insulator VO2 investigated by optical spectroscopy | Lahneman, David; Qazilbash, Muhammad; Beringer, Douglas; Slusar, Tetiana; Kim, Hyun-Tak | Here, we focus on the thermally-driven metal-insulator transition (MIT) in vanadium dioxide (VO 2). | Session 88: Mott Physics |
| 1240 | Orbital magnetism in an electric field-driven Mott insulator | Chakraborty, Subrata; Takei, So | Motivated by the recent discovery of electric field-induced strong diamagnetism in a Mott insulator Ca 2RuO 4 [1], we use the gauge invariant Keldysh Green function formalism to investigate the roles of electric field in the orbital magnetism of a two-band Mott insulator. | Session 88: Mott Physics |
| 1241 | Spin orbital singlet formation and fluctuations in the Cluster Mott Insulator GaTa4Se8 | Yang, Tsung-Han; Higo, Tomoya; Kawamoto, Shinya; Nakatsuji, Satoru; Plumb, Kemp | In this presentation, I will present our crystallographic results following a series of neutron scattering measurements which provide more insights to the correlations between lattice and spin-orbital j eff=3/2 states in cluster spin-orbit Mott insulator. | Session 88: Mott Physics |
| 1242 | Electrical conductivity of solid solutions between metal-like lead- and insulating yttrium ruthenate | Akhbarifar, Sepideh | Electrical conductivity of solid solutions between metal-like lead- and insulating yttrium ruthenate | Session 88: Mott Physics |
| 1243 | Quantum Molecular Dynamics Simulation with Dynamical Mean Field Theory | Fan, Zhijie; Chern, Gia-wei | We develop a novel scheme of adiabatic quantum molecular dynamics (QMD) in which the electron degrees of freedom are integrated out on the fly by the dynamical mean field theory (DMFT) calculation. | Session 88: Mott Physics |
| 1244 | Low-Temperature Dielectric Anomaly Arising from Electronic Phase Separation at the Mott Insulator-Metal Transition | Tan, Yuting; Pustogow, Andrej; Rösslhuber, Roland; Uykur, Ece; Böhme, Annette; Wenzel, Maxim; Saito, Yohei; Löhle, Anja; Hübner, Ralph; Kawamoto, A.; Schlueter, John; Dobrosavljevic, Vladimir; Dressel, Martin | We approach this issue by assessing the complex permittivity via dielectric spectroscopy, which provides vivid mapping of the Mott transition and deep insight into its microscopic nature. | Session 88: Mott Physics |
| 1245 | Theoretical study of nonlinear optical responses of non-centrosymmetric Mott insulators | Nishizawa, Hiroki; Kitamura, Sota; Morimoto, Takahiro | In this study, we investigate nonlinear optical responses in non-centrosymmetric Mott insulators, by studying the so called Rice-Mele model with Hubbard interaction by slave-rotor representation. | Session 88: Mott Physics |
| 1246 | Volatile and non-volatile resistive switching in Mott materials | Lee, Minhan; Cheng, Shaobo; Adda, Coline; del Valle, Javier; Zhu, Yimei; Schuller, Ivan | In this work, we investigated the switching mechanisms behind volatile and non-volatile resistive switching in Mott materials, mainly focusing on vanadium oxides. | Session 88: Mott Physics |
| 1247 | Intrinsic Josephson junction Bi2Sr2CaCu2O8 terahertz sources: Strategies for increasing power output above 77 Kelvin | Benseman, Timothy; Kihlstrom, Karen; Reddy, Kathryn; Koshelev, Alexei; Welp, Ulrich; Kwok, Wai-Kwong; Kadowaki, Kazuo | Here we report 0.15 milliwatts of coherent emission power at 0.5 THz, at a bath temperature of 77 Kelvin. | Session 89: Superconductivity-Josephson Effects |
| 1248 | An Alternate Scheme to Mode-Lock Quantum Phase Slip Junctions | Dassonneville, Bastien; Aumentado, Jose | To address this problem, we consider alternative designs that relax the constraint on the resistance and instead rely on the feedback provided by a high-impedance resonator. | Session 89: Superconductivity-Josephson Effects |
| 1249 | Josephson Weak Links in Chiral Superconductors | He, Jason; Sauls, James | We report results for the current-phase relation (CPR) for Josephson weak links coupling chiral p-wave superconductors. | Session 89: Superconductivity-Josephson Effects |
| 1250 | Geometric Induction in Chiral Superconductors | Jiang, Qingdong; Hansson, Hans; Wilczek, Frank | In particular, we proposed geometric Josephson effects and geometric SQUID, which could be useful for both characterizing materials and future metrology. | Session 89: Superconductivity-Josephson Effects |
| 1251 | Anomalous Critical Current Temperature Evolution of Bi2Sr2CaCu2O8+x Twist Josephson Junctions | Zhao, Shu Yang Frank; Poccia, Nicola; Volkov, Pavel; Yoo, Hyobin; Park, Joon Young; Ronen, Yuval; Harper, Christa; Watanabe, Kenji; Taniguchi, Takashi; Zhong, Ruidan; Gu, Genda; Kim, Philip | Using a novel cryogenic van der Waals pickup technique, we have fabricated Josephson junctions between two exfoliated Bi-2212 crystals with controlled relative twist angles. | Session 89: Superconductivity-Josephson Effects |
| 1252 | Mesa sidewall effect on Bi-2212 intrinsic Josephson junction terahertz emitters | Kuwano, Genki; Nagayama, Kanae; Suzuki, Shohei; Kusunose, Shinji; Yuhara, Takuya; Kashiwagi, Takanari; Minami, Hidetoshi; Kadowaki, Kazuo; Tsujimoto, Manabu | In this study, we established microfabrication processes to control a sidewall angle of the Bi-2212 mesas to investigate the effect of inhomogeneous characteristic distribution on mutual synchronization among stacked IJJs. | Session 89: Superconductivity-Josephson Effects |
| 1253 | Electrodynamics of tunnel ferromagnetic Josephson junctions: dissipation mechanisms and study of noise fluctuations | Ahmad, Halima Giovanna; Massarotti, Davide; Brosco, Valentina; Pal, Avradeep; Miano, Alessandro; Di Palma, Luigi; Satariano, Roberta; Caruso, Roberta; Montemurro, Domenico; Lucignano, Procolo; Pepe, Giovanni Piero; Fazio, Rosario; Blamire, Mark; Tafuri, Francesco | We propose a feasibility study of a novel hybrid transmon circuit that incorporates a tunnel SFS JJ. | Session 89: Superconductivity-Josephson Effects |
| 1254 | NbN-based Josephson junction with PdNi-ferromagnetic barrier | Pham, Duong; Sugimoto, Riku; Nakamura, Hayate; Tanaka, Masamitsu; Yamashita, Taro; Fujimaki, Akira | In this study, we developed NbN-based Josephson junctions with a Pd 89Ni 11 ferromagnetic barrier, which is expected to show uniform ferromagnetisim and smaller spin-flip scattering. | Session 89: Superconductivity-Josephson Effects |
| 1255 | Optimizing supercurrent transmission in NiFe ferromagnetic Josephson junctions using Ni “dusting” | Mishra, Swapna Sindhu; Klaes, Robert; Loloee, Reza; Birge, Norman | We present work on improving the transmission efficiency of single layer NiFe junctions by “dusting” the NiFe with thin layers of Ni on both sides. | Session 89: Superconductivity-Josephson Effects |
| 1256 | Tuning supercurrent in Josephson field effect transistors using h-BN dielectric: Part 1, Fabrication | Thompson, Joshua; Barati, Fatemeh; Dartiailh, Matthieu; Sardashti, Kasra; Mayer, William; Yuan, Joseph; Wickramasinghe, Kaushini; Taniguchi, Takashi; Watanabe, Kenji; Churchill, Hugh; Shabani, Javad | We report the fabrication of gate-tunable Al-InAs Josephson junctions in which the gate dielectric in contact with the InAs is mechanically exfoliated hexagonal boron nitride (hBN). | Session 89: Superconductivity-Josephson Effects |
| 1257 | Design of a high-power terahertz emitter array using a high-temperature superconductor | Shouk, Ruqayyah; Wang, Qing; Klemm, Richard | To enhance the output power well into the mW range suitable for many applications, we have studied a compact design of a stand-alone (Au-Bi2212-Au) mesa array. | Session 89: Superconductivity-Josephson Effects |
| 1258 | Controlling supercurrents and their spatial distribution in ferromagnets | Aarts, Jan; Lahabi, Kaveh; Fermin, Remko | Here we discuss two experiments based on a disk-shaped ferromagnetic layer as supercurrent carrier. | Session 89: Superconductivity-Josephson Effects |
| 1259 | Supercurrent parity meter in a nanowire Cooper-pair transistor | Wang, Jiyin; Schrade, Constantin; Levajac, Vukan; van Driel, David; Gazibegovic, Sasa; Op het Veld, Roy; Sue Lee, Joon; Pendharkar, Mihir; Dempsey, Connor; Palmstrom, Chris; Bakkers, Erik; Fu, Liang; Kouwenhoven, Leo; Shen, Jie | In such a device, we find that the switching current of the InSb-Al island depends on its parity and the corresponding superconducting phase also shows parity-dependent behaviours. | Session 89: Superconductivity-Josephson Effects |
| 1260 | Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction | Ying, Jianghua; He, Jiangbo; Yang, Guang; Liu, Mingli; Lyu, Zhaozheng; Zhang, Xiang; Liu, Huaiyuan; Zhao, Kui; Jiang, Ruiyang; Ji, Zhongqing; Fan, Jie; Yang, Changli; Jing, Xiunian; Liu, Guangtong; Cao, Xuewei; Wang, Xuefeng; Lu, Li; Qu, Fanming | We constructed a proximity-type Josephson junction on nanoplates of Bi 2O 2Se, a new emerging semiconductor with strong SOC. | Session 89: Superconductivity-Josephson Effects |
| 1261 | Nanoscale Dolan Bridges with Integrated Stress Relief for Self-Aligned Josephson Junctions | Skinner, Sueli; Lewis, Rupert; Eichenfield, Matthew; Harris, Charles | In this talk, we will present the fabrication process used to develop these nanoscale junctions, modeling and stress analysis of the lithography resist stack, and low temperature measurements demonstrating junction performance. | Session 89: Superconductivity-Josephson Effects |
| 1262 | A Theory from First-principles on Magnetism and Superconductivity in UTe2 | Yanase, Youichi | Based on the results, we propose multiple superconducting phases under pressures and magnetic fields. | Session 90: Topology and Chiral Superconductivity |
| 1263 | Multi-component superconducting order parameter in UTe2 | Hayes, Ian; Metz, Tristin; Eo, Yun Suk; Collini, John; Saha, Shanta; Ran, Sheng; Agterberg, Daniel; Butch, Nicholas; Paglione, Johnpierre | This talk will present specific heat data that shows that UTe2 actually possesses two nearly coincident superconducting transitions, indicating that the superconducting order parameter is multi-component. | Session 90: Topology and Chiral Superconductivity |
| 1264 | Even parity superconducting state of the strongly correlated Fermi Liquid Sr2RuO4 | Brown, Stuart | We study the field-dependence of the 17O Knight shift at very low temperature, and by way of comparing to corresponding specific heat measurements, conclude that the shift results can be accounted for by the expected field-induced quasiparticle response only. | Session 90: Topology and Chiral Superconductivity |
| 1265 | Nonunitary Triplet Pairing on the Border of Magnetism and Upper Critical Field in UTe2 | Nevidomskyy, Andriy | In this talk, I will show, using a combination of phenomenological free-energy analysis and the weak-coupling BCS theory, coupled with the ab initio band structure calculations, that a time-reversal breaking superconducting phase, so called nonunitary state, is stabilized in UTe 2 [1]. | Session 90: Topology and Chiral Superconductivity |
| 1266 | Topology and superconductivity in UTe2: a microscopic perspective | Agterberg, Daniel; Brydon, Philip; Butch, Nicholas; Collini, John; Eo, Yun Suk; Hayes, Ian; Kapitulnik, Aharon; Metz, Tristin; Paglione, Johnpierre; Ran, Sheng; Saha, Shanta; Shishidou, Tatsuya; Suh, Han Gyeol; Wei, Di; Weinert, Michael; Zhang, Jian | Here we discuss the implications of these measurements on the microscopic descriptions of the superconducting state of UTe 2, revealing how topologically protected Weyl nodes naturally arise. | Session 90: Topology and Chiral Superconductivity |
| 1267 | α-RuCl3 on graphene: subtle interplay of spin, charge and strain effects | Valenti, Roser | In the pursuit of developing routes to enhance magnetic Kitaev interactions in α-RuCl3, as well as probing doping effects, I will discuss in this talk possible new phases emerging from heterostructures of α-RuCl3 on graphene, based on ab initio combined with many-body simulations [1,2] and comparison to experimental observations such as recent electrical conductance and anomalous quantum oscillations measurements. | Session 91: New Opportunities for Spin and Charge Control with α-RuCl3 |
| 1268 | Modulation doping in RuCl3 heterostructures | Wang, Yiping | Here, we demonstrate that the large work function narrow-band Mott insulator RuCl 3 enables modulation doping of exfoliated single and bilayer graphene, chemical vapor deposition (CVD) grown graphene and WSe 2, and molecular beam epitaxy (MBE) grown EuS. | Session 91: New Opportunities for Spin and Charge Control with α-RuCl3 |
| 1269 | Mismatched INterface Theory (MINT) and its integration into open-access database | Kim, Eun-Ah | I will present a new theoretical ab initio framework for mismatched hetero-bilayers, Mismatched INterface Theory (MINT) [1], and its application to α-RuCl3 heterostructures. | Session 91: New Opportunities for Spin and Charge Control with α-RuCl3 |
| 1270 | Charge-Transfer Plasmon Polaritons at Graphene/α-RuCl3 Interfaces | Rizzo, Daniel; Jessen, Bjarke; Sun, Zhiyuan; Ruta, Francesco; Zhang, Jin; Yan, Jiaqiang; Xian, Lede; McLeod, Alexander; Berkowitz, Michael; Watanabe, Kenji; Taniguchi, Takashi; Nagler, Stephen; Mandrus, David; Rubio, Angel; Fogler, Michael; Millis, Andrew; Hone, James; Dean, Cory; Basov, Dmitri | In our study, we exploit this behavior to generate charge-transfer plasmon polaritons (CPPs) in graphene/α-RuCl 3 heterostructures. | Session 91: New Opportunities for Spin and Charge Control with α-RuCl3 |
| 1271 | Proximity induced charge transfer and anomalous temperature dependency in G/α-RuCl3 | Mashhadi, Soudabeh | In this presentation, I will discuss graphene/α-RuCl 3 heterostructures as a novel platform for mutually altering the electronic properties of both graphene and α-RuCl 3. | Session 91: New Opportunities for Spin and Charge Control with α-RuCl3 |
| 1272 | Multi-fixed point numerical conformal bootstrap: a case study with structured global symmetry | Dowens, Matt; Hooley, Christopher | The numerical conformal bootstrap offers the possibility of finding and classifying conformal field theories of quantum critical systems in 2+1 dimensions, and thus obtaining non-perturbative information about their phase diagrams. | Session 92: Quantum Phase Transition Theory |
| 1273 | Order, Disorder, and Transitions in AKLT-like States on the Decorated Bethe Lattice | Pomata, Nicholas | We consider the AKLT state on the Bethe lattice (solved by Affleck, Kennedy, Lieb, and Tasaki in 1988 and Fannes, Nachtergaele, and Werner in 1991), and extend it, first to a variant with a chain of n spin-1 decorations on each edge. | Session 92: Quantum Phase Transition Theory |
| 1274 | Order by disorder in a quantum annealer | Hearth, Sumner; Morampudi, Siddhardh; Laumann, Christopher | We show the appearance of a quasi-ordered phase in the square-octagon fully frustrated transverse field Ising model generated through quantum order by disorder in a quantum annealer of 996 qubits. | Session 92: Quantum Phase Transition Theory |
| 1275 | Quantum critical behavior of the Gross-Neveu-SO(3) universality class: 4−ε expansion, 1/N expansion, and functional renormalization group | Ray, Shouryya; Ihrig, Bernhard; Scherer, Michael; Gracey, John; Janssen, Lukas | In this talk, I shall report on our work characterizing the quantum critical behavior of the Gross-Neveu-SO(3) universality class from three complementary field-theoretical approaches: three-loop ε expansion around the upper critical space-time dimension of four, second-order large- N expansion (partly even at third order), as well as functional renormalization group in the local potential approximation. | Session 92: Quantum Phase Transition Theory |
| 1276 | Confinement transition in the QED3-Gross-Neveu-XY universality class | Janssen, Lukas; Wang, Wei; Scherer, Michael; Meng, Zi Yang; Xu, Xiao Yan | In this talk, I will discuss a confinement transition in a system of N f flavors of interacting Dirac fermions charged under a U(1) gauge field in 2+1 dimensions. | Session 92: Quantum Phase Transition Theory |
| 1277 | Duality Protected Multi-Criticality in Deconfined Quantum Phase Transitions | Lu, Dachuan; You, Yizhuang | This work investigates the multicritical behavior of this kind of theory under perturbative deformation. | Session 92: Quantum Phase Transition Theory |
| 1278 | ab initio Gutzwiller quantum molecular dynamics simulation of hydrogens under extreme conditions | Cheng, Chen; Chern, Gia-wei | To overcome this obstacle, here we present a novel AIMD scheme based on the Gutzwiller/slave-boson many-body technique, which has been shown to successfully describe the correlation-induced metal-insulator transitions. | Session 92: Quantum Phase Transition Theory |
| 1279 | Symmetry Breaking Effects of Instantons in Parton Gauge Theories | Ganesh, Shankar; Maciejko, Joseph | To complement recent studies of the quantum numbers and scaling dimensions of monopole operators in parton gauge theories of frustrated quantum antiferromagnets, we provide an explicit semiclassical derivation of instanton contributions to the low-energy effective parton gauge theory for hardcore bosons on the honeycomb lattice using methods originally developed by ‘t Hooft in the solution of the U(1) problem in quantum chromodynamics. | Session 92: Quantum Phase Transition Theory |
| 1280 | Continuous phase transitions in diagrammatic Monte Carlo | Lenihan, Connor; Kim, Aaram; Simkovic, Fedor; Kozik, Evgeny | We demonstrate that the location of a continuous phase transition can be found from the series coefficients for diverging susceptibility in the normal state. | Session 92: Quantum Phase Transition Theory |
| 1281 | Instanton Crystal Phase | Starkov, Grigorii; Efetov, Konstantin | We propose a class of models exhibiting instanton crystal phase. | Session 92: Quantum Phase Transition Theory |
| 1282 | Attractive Effect of a Strong Electronic Repulsion: The Physics of Vertex Divergences | Del Re, Lorenzo; Reitner, Matthias; Chalupa, Patrick; Springer, Daniel; Ciuchi, Sergio; Sangiovanni, Giorgio; Toschi, Alessandro | By decomposing local and uniform susceptibilities of the Hubbard model via their spectral representations, we prove how entering the nonperturbative regime causes an enhancement of the charge response, ultimately responsible for the phase-separation instabilities close to the Mott metal-insulator transition. | Session 92: Quantum Phase Transition Theory |
| 1283 | Stability of the unconventional $\mathbb{Z}_{n}$ parton states at $\nu = 7/3$: The role of finite width | Faugno, William; Zhao, Tongzhou; Coimbatore Balram, Ajit; Jolicoeur, Thierry; Jain, Jainendra | We find a phase transition as a function of quantum well width where a parton state is favored for small well widths and the Laughlin state is stabilized beyond a critical well width. | Session 92: Quantum Phase Transition Theory |
| 1284 | Universal tripartite entanglement in many-body systems | Zou, Yijian; Siva, Karthik; Soejima, Tomohiro; Mong, Roger; Zaletel, Michael | Motivated by conjectures in holography relating the entanglement of purification and reflected entropy to the entanglement wedge cross-section, we introduce two related non-negative measures of tripartite entanglement g and h. | Session 92: Quantum Phase Transition Theory |
| 1285 | Origin of the ν= 1/2 fractional quantum Hall effect in wide quantum wells | Zhao, Tongzhou; Faugno, William; Pu, Songyang; Jain, Jainendra | We develop a three-dimensional fixed phase diffusion Monte Carlo(DMC) method, which gives, in a single framework, the total energies of various candidate states in a finite width quantum well, including Landau level mixing, directly in a large magnetic field. | Session 92: Quantum Phase Transition Theory |
| 1286 | Continuous phase transition between Neel and valence bond solid phases on a spin ladder system | Ogino, Takuhiro; Kaneko, Ryui; Morita, Satoshi; Furukawa, Shunsuke; Kawashima, Naoki | We investigate a quantum phase transition between a Neel phase and a valence bond solid (VBS) phase in the J-Q-like model in one spatial dimension. | Session 92: Quantum Phase Transition Theory |
| 1287 | Direct Imaging of Orbitals in Quantum Materials: ground state and excited states | Tjeng, Liu; Leedahl, Brett; Amorese, Andrea; Sundermann, Martin; Yavas, Hasan; Gretarsson, Hlynur; Severing, Andrea; Haverkort, Maurits | Recently we have developed a new experimental method that can make a direct image of the ground state d-orbitals in transition metal compounds [1,2]. | Session 93: New Probes of Correlated Oxides |
| 1288 | Acoustic Magnon hybridized with Orbital on Multiferroics Ba2MnGe2O7 | Hasegawa, Shunsuke; Hayashida, Shohei; Asai, Shinichiro; Matsuura, Masato; Masuda, Takatsugu | Here we demonstrate that the acoustic magnon in multiferroics Ba 2MnGe 2O 7 [1-3] is hybridized with orbitals by measuring the temperature variations of magnetization curves and neutron scattering spectra. | Session 93: New Probes of Correlated Oxides |
| 1289 | Imaging the impact of atomic-scale disorder and temperature fluctuations on antiferromagnetic ordering in iridates | Zeljkovic, Ilija | We use spin-polarized scanning tunneling microscopy (SP-STM) to visualize spin-resolved modulations arising from the antiferromagnetic (AF) order in doped Mott insulators Sr 2IrO 4 and Sr 3Ir 2O 7. | Session 93: New Probes of Correlated Oxides |
| 1290 | Onset of two-dimensional Stoner magnetism in cobalt arsenides | Ueland, Benjamin; Li, Bing; Pakhira, Santanu; Sapkota, Aashish; Nediadath Sathyanadhan, Sangeetha; Perring, Toby; Johnston, David; McQueeney, Robert | We find diffuse spin fluctuations giving rise to walls of magnetic scattering with similar anisotropy to that found for x = 0, however, the fluctuating moment is extremely weak. | Session 93: New Probes of Correlated Oxides |
| 1291 | Strong fluctuations and itinerant magnetic frustration in a multiorbital model for SrCo2As2 | Nedic, Ana-Marija; Christensen, Morten Holm; Lee, Yongbin; Fernandes, Rafael; McQueeney, Robert; Ke, Liqin; Orth, Peter | To understand these puzzling observations, we investigate a realistic interacting multi-orbital model for SrCo2As2 that takes both Co d-orbitals and As p-orbitals into account. | Session 93: New Probes of Correlated Oxides |
| 1292 | Coherent spin dynamic of strongly correlated defects in spin chains. | Bertaina, Sylvain; Soriano, Loic; zeisner, julian; kataev, Vladislav; Vezin, Hervé; Fourmigué, Marc; Orio, Maylis | We propose a new paradigm: a non-magnetic defect, like a break in the translational symmetry of Heisenberg’s spin chain, polarized many spins around it. | Session 93: New Probes of Correlated Oxides |
| 1293 | Ultrafast Mid Infrared Pump-Optical Kerr Probe of Correlated Mott-Hubbard Antiferromagnets | Ali, Mustafa G; Kaj, Kelson; Ramaprasad, Varun; Zhang, Gufeng; Chen, Xiang; Seifert, Urban; Zhang, Jingdi; Cremin, Kevin; Balents, Leon; Wilson, Stephen; Averitt, Richard | We utilize intense ultrafast mid-infrared (mid-IR) circularly polarized pump pulses to preferentially excite spin degrees of freedom through coherent two-magnon excitation as measured via the magneto-optic Kerr effect using 800 nm pulses. | Session 93: New Probes of Correlated Oxides |
| 1294 | Time-Domain THz studies of antiferromagnetic Bi2CuO4 | Bhandia, Rishi; Berry, Tanya; Phelan, William; McQueen, Tyrel; Armitage, Peter | We present the results of time-domain THz studies of single crystals of Bi2CuO4 grown via the traveling solvent technique in a laser floating zone furnace . | Session 93: New Probes of Correlated Oxides |
| 1295 | High-resolution AC Calorimetry Measurement of Honeycomb magnet Na2Co2TeO6 | Hu, Zhenhai; Li, Yuan; Lin, Xi | We find an unexpected small heat-capacity peak at low temperature and in zero magnetic field. | Session 93: New Probes of Correlated Oxides |
| 1296 | Magnetoelastic standing waves induced in UO2 by microsecond magnetic field pulses | Jaime, Marcelo; Schoenemann, Rico; Rodriguez, George; Rickel, Dwight; Balakirev, Fedor; McDonald, Ross; Evans, Jordan; Maiorov, Boris; Paillard, Charles; Bellaiche, Laurent; Salamon, Myron; Gofryk, Krzysztof | We performed magnetoelastic measurements of the piezomagnetic antiferromagnet UO 2 via the Fiber Bragg Grating method in pulsed magnetic fields up to 150 T generated by a single-turn coil setup. | Session 93: New Probes of Correlated Oxides |
| 1297 | High-resolution angle-resolved photomission study of CeSb2 | Wang, Xiaoxiao; Chen, Xiaoyang; Fang, Yifei; Jin, Xiaobo; Xu, Haichao; Peng, Rui; Feng, Donglai | Here, we performed the angular-resolved photomission spectroscopy (ARPES) of CeSb 2 and obtained the 3D electronic structure of CeSb 2 for the first time by applying the changeable photon energy. | Session 93: New Probes of Correlated Oxides |
| 1298 | Checkerboard charge order, nematicity and magnetic-field tuning of a van Hove singularity in the surface layer of Sr2RuO4 | De Almeida Marques, Carolina; Rhodes, Luke; Fittipaldi, Rosalba; Granata, Veronica; Yim, Chi Ming; Buzio, Renato; Gerbi, Andrea; Vecchione, Antonio; Rost, Andreas; Wahl, Peter | We show in a detailed study of the surface electronic structure of Sr 2RuO 4, an unconventional superconductor, how tiny structural distortions lead to a significant reconstruction of the Fermi surface and the low energy electronic structure. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1299 | Anomalous transport properties of strained Sr2RuO4 | Stangier, Veronika; Berg, Erez; Schmalian, Joerg | In this talk we discuss a multi-band tight-binding model for strained Sr 2RuO 4 where the Fermi surface crosses the van Hove point. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1300 | Competing Nematicity and Fermi Liquid Behavior in Sr2RuO4 | Ghosh, Sayak; Jerzembeck, Fabian; Sanborn, Collin; Kikugawa, Naoki; Sokolov, Dmitry; Noad, Hilary; Mackenzie, Andrew; Hicks, Clifford; Ramshaw, Brad | We present evidence from two experiments for the presence of nematic fluctuations (along [100]) in Sr 2RuO 4 above T FL. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1301 | Quantum oscillations in superconducting Sr2RuO4 thin films grown by molecular beam epitaxy | Krockenberger, Yoshiharu; Irie, Hiroshi; Tanaka, Yusuke; Ikeda, Ai; Kimata, Motoi; Ouchi, Takumi; taniyasu, yoshitaka; Yamamoto, Hideki; Nojima, Tsutomu | We also assessed the temperature dependence of the Hall effect of these samples and confirmed that for superconducting samples with RRR > 50, the sign of the Hall coefficient changes twice (130 K and 30 K) and the sign change at 30 K is driven by impurity scattering. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1302 | Symmetry-decomposed elastoresistance of AFe2As2 (A = K, Rb, Cs) | Wiecki, Paul; Haghighirad, Amir-Abbas; Weber, Frank; Merz, Michael; Heid, Rolf; Boehmer, Anna | We present elastoresistance measurements of the iron-based superconductors AFe 2As 2 ( A = K, Rb, Cs) in the A 1g, B 1g and B 2g symmetry channels. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1303 | Thermodynamic electric quadrupole moments in iron-based superconductors and a cuprate superconductor from first principles | Kitamura, Taisei; Ishizuka, Jun; Daido, Akito; Yanase, Youichi | In this work, we analyze thermodynamic EQMs in three materials: LaFeAsO, FeSe, and La2CuO4 which show nematic phases, using a multiband tight-binding models constructed by a first-principles calculation. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1304 | Rotational meson resonances in Raman-ARPES spectra of doped antiferromagnets | Bohrdt, Annabelle; Demler, Eugene; Grusdt, Fabian | We propose a combined Raman-ARPES protocol which allows to spectroscopically resolve non-trivial rotational resonances which are invisible in traditional ARPES spectra. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1305 | Antiferromagnetic fluctuations and gradual breakdown of the Fermi liquid | Gauvin-Ndiaye, Chloé; Setrakian, Marguerite; Tremblay, A.-M. | Here, we use the two-particle self-consistent approach to study theoretically the effect of antiferromagnetic fluctuations on the Fermi liquid in the electron-doped cuprate NCCO. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1306 | Study of the pseudogap phase in the high-Tc Superconductor NaxCa2-xCuO2Cl2 | Bacq-Labreuil, Benjamin; Lenz, Benjamin; Lebert, Blair; D’Astuto, Matteo; Biermann, Silke | We present a combined theoretical and experimental study of the still mysterious pseudogap phase in the lightly hole-doped high-T c superconductor Na xCa 2-xCuO 2Cl 2 (Na-CCOC), which has a simple I4/mmm crystal structure stable at all doping levels and temperatures. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1307 | Doping-dependent effective Hubbard interactions for cuprate superconductors | Kapetanovic, Edin; van Loon, Erik; Schueler, Malte; Dong, Xinyang; Gull, Emanuel; Wehling, Tim | Based on a variational principle, we derive effective Hubbard model descriptions to capture electronic correlations even in the presence of nonlocal Coulomb interactions. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1308 | Fermi surface transformation across the pseudogap critical point in the cuprate Nd-LSCO from thermoelectric measurements | Gourgout, Adrien; Grissonnanche, Gael; Collignon, Clement; Badoux, Sven; Ataei, Amirreza; Laliberte, Francis; Verret, Simon; Zhou, Jianshi; Doiron-Leyraud, Nicolas; Taillefer, Louis | Here we present thermoelectric measurements in Nd-LSCO across p*, in magnetic fields large enough to suppress superconductivity. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1309 | Linear magnetoresistance with a universal energy scale in a strong-coupling superconductor | Zhang, Wei; Hu, Yajian; Kuo, Chia-Nung; Kuo, Shu-Tsen; Fang, Yue-Wen; Lai, Kwing To; Liu, Xinyou; Yip, King; Sun, Dan; Balakirev, Fedor; Lue, Chin-Shan; Chen, Hanghui; Goh, Swee | In this presentation, I will present our discovery of a nonsaturating, linear magnetoresistance in Mo 8Ga 41, a nearly isotropic strong electron-phonon coupling superconductor with a linear-in-temperature resistivity from the transition temperature to ∼55 K. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1310 | Van Hove singularity and stress-induced Fermi surface tuning in Sr2RuO4 | Chronister, Aaron; Zingl, Manuel; Pustogow, Andrej; Luo, Yongkang; Su, Yue-Shun; Mackenzie, Andrew; Hicks, Clifford; Bauer, Eric; Kikugawa, Naoki; Mravlje, Jernej; Georges, Antoine; Brown, Stuart | Van Hove singularity and stress-induced Fermi surface tuning in Sr2RuO4 | Session 94: Normal State Properties of Unconventional Superconductors |
| 1311 | Phonon Magnetochiral Effect in Lanthanum Cuprate | Shragai, Avi; Gu, Genda; Tranquada, John; Ramshaw, Brad | Here, we use pulse echo ultrasound to probe whether phonons couple to chiral order in the parent compound La2CuO4. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1312 | Bad metal and strange metal behavior of normal-state of cuprates: an emergent Bose liquid perspective | Zeng, Tao; Zou, Long; Jiang, Sheng-tao; Ku, Wei | Here we investigate the temperature-dependent dynamical conductivity of an emergent Bose liquid and found that it reproduces most key features of the observed optical conductivity of cuprates, including the puzzling featureless continuum and the mid-infrared peak. | Session 94: Normal State Properties of Unconventional Superconductors |
| 1313 | Quantum Quasi-Monte Carlo Technique for Many-Body Perturbative Expansions | Maček, Marjan; Dumitrescu, Philipp; Bertrand, Corentin; Triggs, Bill; Parcollet, Olivier; Waintal, Xavier | We adapt integration methods using low-discrepancy sequences to this problem. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1314 | Quantum Monte Carlo without random numbers | Maček, Marjan; Dumitrescu, Philipp; Bertrand, Corentin; Triggs, Bill; Parcollet, Olivier; Waintal, Xavier | In this talk, I will present novel results where the quantum impurity is embedded in a non-trivial environment, such as electron interferometer. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1315 | High-order expansion around BCS theory | Spada, Gabriele; Rossi, Riccardo; Simkovic, Fedor; Garioud, Renaud; Ferrero, Michel; Van Houcke, Kris; Werner, Félix | Working on the BCS side of the strongly correlated regime, we observe convergence of the expansion. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1316 | Implicit renormalization approach to the problem of Cooper instability | Prokof’ev, Nikolai; Chubukov, Andrey; Svistunov, Boris | We discuss the problem of determining Tc from known system properties at temperatures T >> Tc, and stress that this cannot be done reliably by following the standard protocol of solving for the largest eigenvalue of the original gap-function equation. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1317 | Evaluation of arbitrary Feynman graphs via algorithmic methods. | LeBlanc, James | In this talk we present an algorithm for fully symbolic evaluation of arbitrary Feynman diagrams that overcomes this issue, and many others. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1318 | Causal projection approach for imaginary-time quantum many-body simulations | Han, Mancheon; Choi, Hyoung Joon | In this work, we present a causal projection approach which projects an imaginary-time numerical function onto a space of functions satisfying causality. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1319 | Exact Self-Consistent Effective Hamiltonian Theory | Wang, Xindong; Chen, Xiao; Ke, Liqin; Cheng, Hai-Ping; Harmon, Bruce | We propose a general variational fermionic many-body wavefunction that generates an effective Hamiltonian in a quadratic form, which can then be exactly solved. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1320 | Finite Temperature Auxiliary Field Quantum Monte Carlo in the Canonical Ensemble | Shen, Tong; Liu, Yuan; Rubenstein, Brenda | In this work, we present a new recursive approach for performing Auxiliary Field Quantum Monte Carlo (AFQMC) in the canonical ensemble (CE) that does not require knowledge of chemical potentials. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1321 | DMRG Approach to Optimizing Two-Dimensional Tensor Networks | Hyatt, Katharine | We present results for several 2D spin models and discuss possible extensions and applications. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1322 | High-Order Renormalized Perturbative Approach for Strongly-Correlated Fermions | Rossi, Riccardo; Simkovic, Fedor; Spada, Gabriele; Garioud, Renaud; Van Houcke, Kris; Ferrero, Michel; Werner, Félix | In this talk I show how perturbation theory can be turned into a viable computational approach for physical systems afflicted by the fermionic sign problem. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1323 | Solving the Bethe–Salpeter equation with exponential convergence | Wallerberger, Markus; Shinaoka, Hiroshi; Kauch, Anna | Using the intermediate representation and sparse modelling for two-particle objects on the Matsubara axis, we develop an algorithm that solves the Bethe–Salpeter equation in O( L 8) time and with O( L 4) memory, where L grows only logarithmically with inverse temperature, bandwidth, and desired accuracy. | Session 95: Precision Many-Body Physics: Methods and Algorithms |
| 1324 | Conductivity of superconductors in the flux flow regime | Smith, Michael; Andreev, Anton; Feigel’man, Mikhail; Spivak, Boris | We develop a theory of conductivity of type-II superconductors in the flux flow regime taking into account random spatial fluctuations of the system parameters, such as the gap magnitude Δ(r) and the diffusion coefficient D(r). | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1325 | Fission induced vortex lattice disordering in UPt3 | Avers, Keenan; Kuhn, Stephen; Leishman, Allan; Gannon, William; DeBeer-Schmitt, Lisa; Dewhurst, Charles; Honecker, Dirk; Cubitt, Robert; Halperin, William; Eskildsen, Morten | Fission induced vortex lattice disordering in UPt3 | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1326 | Effect of pinning on nonlinear dynamics and dissipation of a trapped vortex driven by a strong surface current in a superconducting film. | Walive Pathiranage, Manula Randhika Pathirana; Gurevich, Alexander | We report numerical simulations of a trapped elastic vortex driven by a strong ac magnetic field $H(t)=H\sin\omega t$ parallel to the surface of a superconducting film. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1327 | Magnetic melting of the 2D vortex lattice in thin a-MoGe films: Electrical transport perspective | Pokharel, Bal; Terzic, Jasminka; Popovic, Dragana; Dutta, Surajit; Jesudasan, John; Raychaudhuri, Pratap; Maccari, Ilaria; Benfatto, Lara | We find that the temperature dependence of the resistivity indeed follows a VFT law over a wide range of fields, consistent with numerical simulations. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1328 | Anomalous and magnetic Hall effect of the Abrikosov vortex in type-II superconductors | Ueki, Hikaru; Ohuchi, Marie; Joshua, Ezekiel; Kita, Takafumi | We derive the quasiclassical equations of superconductivity with the Lorentz force, the pair-potential gradient (PPG) force, and the pressure difference due to the slope in the density of states [1]. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1329 | Vortex Structure in a Superconductor under a Rotating Field: Entanglement and Recombination | Kato, Masaru; Yokoji, Hayato | In order to answer this question, we have solved the Ginzburg-Landau equations for cuboids under rotated magnetic fields. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1330 | Probing magnetization and vortex dynamics in Bi2Sr2CaCu2O8 micromechanical resonator driven using radiation pressure drive. | Sahu, Sudhir; Mandal, Supriya; Ghosh, Sanat; Deshmukh, Mandar; Singh, Vibhor | Techniques from cavity optomechanics provide exquisite control over the motion of mechanical resonator. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1331 | Detecting anisotropic interaction between vortices under extreme confinement | Yan, Lihao; Ma, Xiaoyu; Li, Wenzhao; Milošević, Milorad; Jankó, Boldizsár | Here we present a study of superconducting vortex matter under strong confinement in mesoscopic samples. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1332 | Nonreciprocal Switching Currents in Superconductor/Semiconductor Heterostructure Devices | Sundaresh, Ananthesh; Rokhinson, Leonid | In this work we report experimental investigation of critical currents in nanowires fabricated from InAs/Al heterostructures. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1333 | Superconducting Vortex Dynamics in Thin Films Near the Critical Temperature | Sirota, Alexander; Talanov, Vladimir | We study this process by modeling the pinning landscape as a double well potential arising from two defects and examining the time evolution of the probability density of the vortex position. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1334 | Vortex Dynamics and Dissipation under High-Amplitude Microwave Drive | Checchin, Mattia; Grassellino, Anna | In this paper, we describe the vortex dynamics under a high-amplitude microwave drive and its effect on the surface resistance of superconductors. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1335 | Field-Angle Dependent Vortex Lattice Phase Diagram in MgB2 | Leishman, Allan; Sokolova, Anna; Bleuel, Markus; Zhigadlo, Nikolai; Eskildsen, Morten | To explore the coupling of this anisotropy with the VL, we have performed small-angle neutron scattering (SANS) as we rotate the applied field away from the c axis. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1336 | Geometric Meissner Effect in Chiral Superconductors | Roychowdhury, Krishanu | The geometric Meissner effect has been proposed as a smoking gun evidence for chiral superconductivity, and the long term goal of this work is to tie this effect more closely to more realistic microscopic models. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1337 | Vortex phase diagram and high-field normal state of underdoped Bi2Sr2-xLaxCuO6+δ. | Terzic, Jasminka; Pokharel, Bal; Ono, Shimpei; Popovic, Dragana | We perform similar studies in underdoped Bi 2Sr 2-xLa xCuO 6+ δ (La-Bi2201), which in contrast to La-214 family exhibits only short-range charge order, and no spin order. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1338 | Confluence of complex surface impedance and depinning current studies of model defects in Nb films near critical temperature | Garcia, Cougar; Talanov, Vladimir; Sirota, Alexander; Merenich, Dillon; Herr, Anna; Rizzo, Nicholas; Anlage, Steven | In this work we combine both approaches to characterize thin Nb films used in superconducting electronic circuits. | Session 96: Superconductivity: Critical Current, Magnetic Field Effects, and Vortex Physics |
| 1339 | Collective modes of twisted van der Waals materials | Fogler, Michael | Our theory and modeling provides explanation for recent nano-optical experiments with twisted van der Waals heterostructures and indicates some possible future directions in this field. | Session 97: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1340 | Spontaneous out-of-equilibrium plasmonic magnetism in van der Waals materials | Song, Justin | We will argue that a driven interacting system subject to a linearly polarized (achiral) driving field can spontaneously magnetize (acquire chirality). | Session 97: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1341 | Nanogap Plasmonics for Tailored Properties of 2D Materials | Mikkelsen, Maiken | Here, we show a plasmonic nanocavity based on a nanopatch antenna design that has two tunable resonant modes in the visible spectrum. | Session 97: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1342 | Nano-polaritonics in twisted van der Waals heterostructures | Ni, GuangXin | We analyzed these soliton networks and obtained the local electrodynamical characters based on the infrared active polaritonics at the nanoscale. | Session 97: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1343 | Ab initio four-band Wannier tight-binding model for generic twisted graphene systems | Cao, Jin; Wang, Maoyuan; Liu, Cheng-Cheng; Yao, Yugui | We provide an approach to systematically build the Wannier tight-binding model for generic twisted graphene systems. | Session 98: Theory of Twisted Bilayer |
| 1344 | Flat band carrier confinement in magic angle twisted bilayer Graphene | Tilak, Nikhil; Lai, Xinyuan; Wu, Shuang; zhang, zhenyuan; Xu, Mingyu; RIBEIRO, RAQUEL DE; Canfield, Paul; Andrei, Eva | Using low temperature scanning tunneling spectroscopy we demonstrated that the flat bands in magic angle twisted bilayer graphene can substantially amplify even negligibly small doping inhomogeneity. | Session 98: Theory of Twisted Bilayer |
| 1345 | Flat bands and gaps in twisted double bilayer graphene | Culchac, Francisco; Del Grande, Rafael; Capaz, Rodrigo; Chico, Leonor; Suarez Morell, Eric | We present electronic structure calculations of twisted double bilayer graphene (TDBG): a tetralayer graphene structure composed of two AB-stacked graphene bilayers with a relative rotation angle between them. | Session 98: Theory of Twisted Bilayer |
| 1346 | General Theory of Flat Bands and Magic Angles in Twisted Dirac Materials | Dunbrack, Aaron; Cano, Jennifer | Using perturbation theory, we generalize this analysis to any interface between two twisted 2D Dirac materials, one with N Dirac cones and one with M Dirac cones (where N and M may be odd, as surface states of topological insulators), under assumptions of time-reversal and rotational symmetry. | Session 98: Theory of Twisted Bilayer |
| 1347 | Higher Order Magic in Twisted Four Layer Graphene | Eaton, Adam; Fertig, Herb; Li, Yantao; Seradjeh, Babak | Here, we consider a 4-layer structure with the angles between layers 1-2 and layers 3-4 identical, but with the angle between layers 2-3 unconstrained. | Session 98: Theory of Twisted Bilayer |
| 1348 | One-dimensional flat bands in twisted bilayer germanium selenide | Kennes, Dante; Xian, Lede; Claassen, Martin; Rubio, Angel | Here, we demonstrate by combining large scale ab initio simulations with numerically exact strong correlation approaches that an effective one-dimensional system emerges upon stacking two twisted sheets of GeSe, in marked contrast to all moiré systems studied so far. | Session 98: Theory of Twisted Bilayer |
| 1349 | Relaxation Effects in Twisted Bilayer Graphene: a Multi-Scale Approach | Leconte, Nicolas; Javvaji, Srivani; An, Jiaqi; Samudrala, Appalakondaiah; Jung, Jeil | We present a multi-scale approach to capture the interdependent atomic and electronic structures of suspended and hexagonal boron nitride (hBN) supported twisted bilayer graphene (tBG) by using rescaled two center interlayer hopping terms to calibrate the flat band magic angle to ∼ 1.08 ο, as a way to resolve the indeterminacy of atomic/electronic structure models whose magic angles are bracketed between 0.9 ο −1.3 ο. | Session 98: Theory of Twisted Bilayer |
| 1350 | Theory of moiré nematic state in twisted double-bilayer graphene | Scheurer, Mathias; Samajdar, Rhine; Turkel, Simon; Rubio Verdú, Carmen; Song, Larry; Klebl, Lennart; Watanabe, Kenji; Taniguchi, Takashi; Ochoa, Hector; Xian, Lede; Kennes, Dante; Rubio, Angel; Venderbos, Jörn; Narayan, Abhay; Fernandes, Rafael | Here we discuss how these experimental results allow us to determine the underlying microscopic form of the nematic order parameter. | Session 98: Theory of Twisted Bilayer |
| 1351 | Atomic-scale structure and electronic properties of twisted double bilayer graphene: topological edge states and broken symmetries | Rubio Verdú, Carmen; Kerelsky, Alexander; Turkel, Simon; Song, Larry; Klebl, Lennart; Samajdar, Rhine; Scheurer, Mathias; Venderbos, Jorn; Wang, Lei; Halbertal, Dorri; Finney, Nathan; Watanabe, Kenji; Taniguchi, Takashi; Ochoa, Hector; Xian, Lede; Kennes, Dante; Hone, James; Dean, Cory; Basov, Dmitri; Fernandes, Rafael; Rubio, Angel; Narayan, Abhay | We demonstrate the formation of correlated phases in twisted double bilayer graphene (tDBG) in two regimes of twist angle: minimally twisted (<0.1°) and 1.1°. | Session 98: Theory of Twisted Bilayer |
| 1352 | Electronic nematicity in a transition metal dichalcogenide heterobilayer Moire system | Matty, Michael; Kivelson, Steven; Kim, Eun-Ah | Specifically, we use Monte Carlo simulations to explore the phase diagram for charge density wave and nematic phases at non-zero temperatures in the vicinity of and away from various commensurate densities. | Session 98: Theory of Twisted Bilayer |
| 1353 | Nematic order in twisted bilayer graphene by valley + spin fluctuation interference mechanism | Onari, Seiichiro; Kontani, Hiroshi | Here, we analyze the nematic state by focusing on the quantum interference mechanism, which was developed in the field of Fe-based superconductors [2]. | Session 98: Theory of Twisted Bilayer |
| 1354 | Flat bands in twisted transition metal dichalcogenide bilayers | Hellberg, C Stephen; Phillips, Madeleine | We present the results of density functional theory (DFT) calculations that model the electronic properties of MoSe 2/WSe 2 bilayers with a small twist away from commensurate 180-degree stacking. | Session 98: Theory of Twisted Bilayer |
| 1355 | Twisted bilayer WSe2 (II): Quantum phase diagram of a Moiré-Hubbard model | Wu, Fengcheng; Pan, Haining | We theoretically study a generalized Hubbard model on moiré superlattices of twisted bilayers, and find very rich filling-factor-dependent quantum phase diagrams tuned by interaction strength and twist angle. | Session 98: Theory of Twisted Bilayer |
| 1356 | Twisted bilayer physics in the square lattice | Cui, Fan; Zhang, Qiang; Le, Congcong; Chiu, Ching-Kai; Hu, Jiangping | In particular, we focus on the twisted physics in the square lattice and propose material realizations. | Session 98: Theory of Twisted Bilayer |
| 1357 | Accurate ab-initio tight-binding model for twisted transition metal dichalcogenide bilayers | Atalar, Kemal; Vitale, Valerio; Lischner, Johannes; Mostofi, Arash | In this work, we develop accurate and efficient tight-binding models for predicting and understanding the electronic structure of twisted TMD heterostructures. | Session 98: Theory of Twisted Bilayer |
| 1358 | Orbital molecules in oxides | Attfield, Paul | [v] X-ray pair distribution function (XPDF) analysis reveals that disordered orbital molecules persist to high temperatures in the vanadium spinels AlV 2O 4[vi] and the new analog GaV 2O 4. | Session 99: Orbital Degeneracy Breaking and Emergent Local Symmetry in Transition Metal Compounds |
| 1359 | Interplay between Jahn-Teller effect and spin-orbit coupling | Streltsov, Sergey; Khomskii, Daniel | Solving the Jahn-Teller problem and taking into account strong electron correlations we show that quantum entanglement of the spin and orbital degrees of freedom via spin–orbit coupling strongly affects this effect. | Session 99: Orbital Degeneracy Breaking and Emergent Local Symmetry in Transition Metal Compounds |
| 1360 | Local Orbital Degeneracy Lifting as a Precursor to Orbital-Selective Peierls Transitions | Bozin, Emil | Here we use a sensitive local structural technique, x-ray atomic pair distribution function analysis, to reveal the presence of fluctuating local-structural distortions at high temperature of several transition metal based quantum materials exhibiting orbital-selective groud states. | Session 99: Orbital Degeneracy Breaking and Emergent Local Symmetry in Transition Metal Compounds |
| 1361 | Scattering Signatures of Bond-Dependent Magnetic Interactions | Paddison, Joseph | In this talk, I explore the extent to which bond-dependent interactions can be extracted from diffuse magnetic neutron-scattering data measured in the paramagnetic phase. | Session 99: Orbital Degeneracy Breaking and Emergent Local Symmetry in Transition Metal Compounds |
| 1362 | Charge Instability in Single-Layer TiTe2 Mediated by van-der-Waals Bonding to Substrates | Lin, Meng-Kai; Hlevyack, Joseph; Chen, Peng; Liu, Ro-Ya; Mo, Sung-Kwan; Chiang, Tai-Chang | Here, we report an experimental study of a model system to address this issue. | Session 100: Surface Studies of Two Dimensional Materials |
| 1363 | Electronic structure of VTe2 thin films studied by high-resolution ARPES | Kawakami, Tappei; Kato, Takemi; Sugawara, Katsuaki; Taguchi, Taiki; Saruta, Yasuaki; Sato, Takafumi | We have fabricated monolayer and multilayer VTe 2 thin films on bilayer graphene by molecular-beam-epitaxy method and studied their electronic states by angle-resolved photoemission spectroscopy. | Session 100: Surface Studies of Two Dimensional Materials |
| 1364 | High-Tc Two-dimensional Ferromagnetism in Epitaxial CrTe2 Nanofilms | Zhang, Xiaoqian; Lu, Qiangsheng; Cook, Jacob | We report the growth and properties of a new 2D ferromagnet, CrTe 2, with an intrinsic Curie temperature ( T c) of ~250 K for thin films ranging from 3 monolayer (ML) to 15 ML. | Session 100: Surface Studies of Two Dimensional Materials |
| 1365 | Softening phonon modes drive the structural phase transition in silicene | Villanova, John; Barraza-Lopez, Salvador | The transition is underpinned by a softening of phonon modes, and we investigate this behavior by the use of molecular dynamics and the velocity autocorrelation sequence to extract the phonon band structure directly without relying on strictly zero-temperature phonon calculations. | Session 100: Surface Studies of Two Dimensional Materials |
| 1366 | Scanning Tunneling Microscopy and Spectroscopy (STM/S) Reveals Small Energy Gap of CrBr3 | Baral, Dinesh; Fu, Zhuangen; Zadorozhnyi, Andrei; Dulal, Rabindra; Wang, Aaron; Shrestha, Narendra; Erugu, Uppalaiah; Tang, Jinke; Dahnovsky, Yuri; Tian, Jifa; Chien, Te-Yu | Here, we present results from scanning tunneling microscopy and spectroscopy (STM/S) on a defect free surface that is confirmed by atomic resolution topography, having much smaller energy gap (0.57 ± 0.04eV) in thick flake. | Session 100: Surface Studies of Two Dimensional Materials |
| 1367 | Electronic Structure of Two-Dimensional CoO2 | Holt, Ann Julie; Pakdel, Sahar; Rodríguez-Fernández, Jonathan; Zhang, Yu; Curcio, Davide; Sun, Zhaozong; Lacovig, Paolo; Lauritsen, Jeppe; Lizzit, Silvano; Lanata, Nicola; Hofmann, Philip; Bianchi, Marco; Sanders, Charlotte | The results emphasize the interest of oxides as a new subject within two-dimensional materials research. | Session 100: Surface Studies of Two Dimensional Materials |
| 1368 | Broken Myth of Inter-layer Electronic Decoupling at ReS2: Theoretical understanding, experimental corroboration and application | Karmakar, Debjani; Maji, Tuhin; Karmakar, Anasuya; Hawaldar, Ranjit; Majumdar, Kausik; Adarsh, K V; Ray, Samit Kumar | Using DFT and TDDFT, we resolved the structural and electronic disputes of ReS 2. | Session 100: Surface Studies of Two Dimensional Materials |
| 1369 | Amorphous WSi2 Thin Film Growth: Exploring Nanoscale Local Dynamics versus Average Kinetics | Wang, Chenyu; Wagenbach, Christa; Ulbrandt, Jeffrey; Rainville, Meliha; Narayanan, Suresh; Zhou, Hua; Headrick, Randall; Ludwig, Karl | We have studied the average kinetics and real-time dynamics during amorphous WSi 2 film growth as a function of pressure by means of X-ray photon correlation spectroscopy (XPCS). | Session 100: Surface Studies of Two Dimensional Materials |
| 1370 | Interface-enhanced superconductivity of single layer FeSe grown on non-TiO2 based oxides | Song, Yuan-He; Lou, Xia; Chen, Xiaoyang; Zhang, Qinghua; Gu, Lin; Chen, Zheng; Xie, Yan-Wu; Xu, Xiaofeng; Zhu, Xuetao; Guo, Jiandong; Tao, Ran; Yu, Tianlun; Ru, Hao; Wang, Yi-Hua; Xu, Haichao; Peng, Rui; Feng, Donglai | Here we report a new FeSe-based interface, single layer FeSe grown on non-TiO 2 based oxides by molecular beam epitaxy (MBE) method, was successfully obtained. | Session 100: Surface Studies of Two Dimensional Materials |
| 1371 | Defect Engineering within Transition Metal Dichalcogenides Using Magnetic and Rare-Earth Metals | Thomas, John; Cochrane, Katherine; Weber-Bargioni, Alexander | Here, we delve into filling defect vacancies in synthetic host TMD materials to enable investigations in localized photon emission, determine spin-orbit interaction, and identify subsequent band structure with scanning probe microscopy and spectroscopy. | Session 100: Surface Studies of Two Dimensional Materials |
| 1372 | Spin-Orbit-Induced Topological Flat Bands in Line and Split Graphs of Bipartite Lattices. | Ma, Da-Shuai; Xu, Yuanfeng; S. Chiu, Christie; Regnault, Nicolas; Houck, Andrew; Song, Zhida; Bernevig, Andrei | In this work, we introduce a generic approach to construct two-dimensional (2D) topological quasi-flat bands from line graphs and split graphs of bipartite lattices. | Session 100: Surface Studies of Two Dimensional Materials |
| 1373 | Construction of graphene/silicene heterostructure by Si intercalation | Li, Geng; Du, Shixuan; Gao, Hongjun | Here we report the experimental fabrication of silicene protected by a graphene overlayer. | Session 100: Surface Studies of Two Dimensional Materials |
| 1374 | First-principles study on the ferroelectricity properties of two-dimensional SnTe films | Liu, Meng; Sun, Jia-Tao; Fu, Zhaoming | According to our study, we find two way to control the properties of 2D SnTe maybe can obtaining the multiferroicity and magnetoelectric coupling. | Session 100: Surface Studies of Two Dimensional Materials |
| 1375 | Epitaxial growth of superconducting FeTe1-xSex film on a topological insulator | Yao, Xiong; Brahlek, Matthew; Yi, Hee Taek; Jain, Deepti; Oh, Seongshik | Here, surprisingly we discover that Fe(Te,Se) can grow epitaxially on a TI (Bi2Te3) layer with Tc as high as 13 K. Furthermore, this is the very first TI-SC heterostructure platform that can be formed in either of TI-on-SC or SC-on-TI sequence, opening a route to unprecedented topological heterostructures such as Weyl superconductors. | Session 100: Surface Studies of Two Dimensional Materials |
| 1376 | In-gap States Induced by Distortion and Topology in Ultrathin Bi(110) Films | Lyu, Yanfeng; Daneshmandi, Samira; Huyan, Shuyuan; Chu, Paul C. W. | Here, we report the distortion modified electronic states of two-monolayer Bi(110) films grown on graphene/6H-SiC(0001) by using low-temperature scanning tunneling microscopy/spectroscopy. | Session 100: Surface Studies of Two Dimensional Materials |
| 1377 | Atomic Surface Structures in the Chiral Magnet MnGe | Repicky, Jacob; Corbett, Joseph; Liu, Tao; Takeuchi, Noboru; Ahmed, Adam; Guerrero Sanchez, Jonathan; Kawakami, Roland; Gupta, Jay | Here, we present joint scanning tunneling microscopy (STM) and density functional theory (DFT) characterization of the B20 MnGe(111) surface. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1378 | Understanding the Three Phases of Iodine on Silver (111) Through Low-Temperature Imaging and Nearest Neighbor Networks. | Dreyer, Michael; Murray, Joseph; Butera, Robert | The results and analytical methods used will be described in detail. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1379 | Low-energy electron diffraction and microscopy studies of Fe5GeTe2 | Ahammad, Jibril; Macy, Juan; Sadowski, Jerzy; Li, Peng; Balicas, Luis; Jin, Wencan | In this talk, we will present low-energy electron diffraction and microscopy (LEED/LEEM) studies of Fe5GeTe2. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1380 | Adsorption and Structural Effects of Formic Acid on Magnetite Surfaces | Sellschopp, Kai; Müller, Stefan; Vonbun-Feldbauer, Gregor | Here, we present results from density functional theory (DFT) calculations on the adsorption and structural effects of formic acid on magnetite (001) and (111), which represent the major facets of magnetite nanoparticles. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1381 | Genetic Algorithm Structure Search for Cs-Sb photocathode on a SiC(100) substrate | Gibson, Jason; Paul, Joshua; Galdi, Alice; Hennig, Richard | In this study, we utilize two methods to identify the structures and properties of energetically stable thin films of Cs-Sb grown on SiC(100) and utilize density functional theory to predict their photoemission properties. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1382 | Towards the synthesis of MAX phases by Atomic Layer Deposition (ALD) | De Luca, Oreste; Parkhomenko, Roman; Knez, Mato; Martinez Martinez, Diego; Rudolf, Petra | Following this innovative strategy, here we present the synthesis and characterization of Ti 2GaN films grown on SiO 2/Si substrates, at various temperatures and starting from several precursors. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1383 | Surface Structure of α-Quartz | Burson, Kristen; Simon, Georg; Munroe, Clare; Heyde, Markus; Freund, H | Here we present a real space structure study of α-quartz(0001) surfaces prepared at high temperature in air. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1384 | Growth mechanism of Si on Ag(111) | Kawakami, Naoya; Arafune, Ryuichi; Minamitani, Emi; Takagi, Noriaki; Lin, Chunliang | To simulate the unique growth behavior, we used a kinetic Monte Carlo simulation. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1385 | Interface engineering for enhancing piezoelectric response of 2D layered In2Se3 nanosheets | Hao, Jianhua | In this work, we report an enhanced out-of-plane piezoelectric performance in In 2Se 3/MoS 2 vdW heterostructure through interface engineering. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1386 | Artificial-Intelligence-Driven Characterization of Crystallographic Interfaces from Electron Microscopy | Yeo, Byung Chul; Liebscher, Christian H.; Leitherer, Andreas; Scheffler, Matthias; Ghiringhelli, Luca | Here, we present AI-STEM, a newly developed AI tool, based on a a Bayesian neural network, for accurately extracting the key features of (poly)crystalline materials, i.e., crystal-structure prototype, lattice constant, and (relative) orientation from atomic-resolution STEM images. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1387 | Surface structure and stoichiometry of PdZn alloys under realistic (T, p) conditions | Zhou, Yuanyuan; Kabalan, Lara; Kowalec, Igor; Ghiringhelli, Luca; Levchenko, Sergey; Logsdail, Andrew; Catlow, Richard; Scheffler, Matthias | Specifically, we will analyze the composition and structure of PdZn(101) in a constrained thermal equilibrium with CO 2 and H 2 gases using ab initio atomistic thermodynamics (aiAT) [1], considering a bulk composition of 1:1. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1388 | Intrinsic electron injection and carrier induced breathing distortion in LaNiO3 by ionic liquid gating | Cao, Hui; Liu, Changjiang; Zhang, Le; Zhai, Xiaofang; Fong, Dillon; Bhattacharya, Anand; Zhou, Hua; Chen, Wei | Here we report an investigation of electrolyte gating on LaNiO 3 (001) thin films and determine a threshold gating voltage at 0.7 V. Hall measurements show that with gating, electrons are injected into LaNiO 3 , which compensates the existing hole carriers. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1389 | Influence of surface termination of 6H-SiC (0001) substrate on epitaxial MgB2 ultra-thin films | Yang, Weibing; Chen, Ke; Qin, Fei; Cunnane, Daniel; Karasik, Boris; Xi, Xiaoxing | Here we compare epitaxial MgB 2 films, 5-30 nm in thickness, grown on 6H-SiC (0001) substrates with either C termination (C-face) or Si termination (Si-face) by HPCVD. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1390 | Theoretical study of GaN (0001) surface reconstructions and La and Ga ad-atoms under N- and Ga-rich conditions | AlQuaiti, Fatima; Demkov, Alexander | We use density functional theory (DFT) to study the surface reconstruction of GaN (0001). | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1391 | Influence of monolayer and bilayer Silica film on electronic structure of Fe-Phthalocyanine molecule | Kara, Abdelkader; Jabrane, Meysoun; Sajid, Muhammad; elhafidi, Mohammed | In order to explore the effect that silica films have on the electronic properties of Iron-Phthalocyanine (FePc) molecule, we investigate the adsorption properties of FePc on several sites and report the electronic properties of the energetically preferable configurations and discuss charge density, charge distribution, charge transfer and changes in magnetization at each interface. | Session 101: Surfaces, Interfaces and Thin Films: Electronic and Lattice Properties |
| 1392 | Persistent fluctuating superconductivity in metallic cuprate superconductor Bi2Sr2CaCu2O8+d | He, Yu | We present direct thermodynamic and spectroscopic evidence that such superconducting fluctuation persists in heavily hole-doped cuprate Bi 2Sr 2CaCu 2O 8+d (Bi-2212 T c =66K), which has a hole density as high as 10 22 cm -3. | Session 102: Pairing in the High-Tc Normal State: Evidence and Theoretical Models |
| 1393 | ARPES as a Self-Energy Spectroscopy – Power Law Liquids, Planckian Scattering, Conversion of Correlations across Tc, and Positive Feedback Loops | Li, Haoxiang; Reber, T. J.; Zhou, Xiaoqing; Parham, Stephen; Berger, Helmuth; Arnold, Gerald; Dessau, Daniel | We have made major strides in developing ARPES into a true spectroscopy of self-energies, here discussing how it is applied to the study of cuprate high Tc superconductors. | Session 102: Pairing in the High-Tc Normal State: Evidence and Theoretical Models |
| 1394 | Shot noise in cuprate tunnel junctions: evidence for pairing in the pseudogap | Natelson, Douglas; Zhou, Panpan; Chen, Liyang; Liu, Yue; Sochnikov, Ilya; Bollinger, Anthony; Han, Myung-Geun; Zhu, Yimei; He, Xi; Bozovic, Ivan | Here we report measurements of the shot noise of tunnelling current in high-quality La 2−xSr xCuO 4/La 2CuO 4/La 2−xSr xCuO 4 (LSCO/LCO/LSCO) heterostructures fabricated using atomic layer-by-layer molecular beam epitaxy at several doping levels. | Session 102: Pairing in the High-Tc Normal State: Evidence and Theoretical Models |
| 1395 | Direct evidence for Cooper pairing without a spectral gap in a disordered superconductor above Tc | Allan, Milan | In this talk, I will present scanning tunneling noise spectroscopy experiments [1,2] that unambiguously show that preformed Cooper pairs exist up to temperatures much higher than the zero-resistance critical temperature T c in the disordered superconductor titanium nitride, by observing a clear enhancement in the shot noise that is equivalent to a change of the effective charge from 1 to 2 electron charges [3]. | Session 102: Pairing in the High-Tc Normal State: Evidence and Theoretical Models |
| 1396 | Cooper pair as a preexisting quasiparticle, from the perspective of fluctuating pair density wave | Dai, Zhehao; Todadri, Senthil; Lee, Patrick | We provide a new perspective using quantum fluctuating pair density waves to unify the phenomenology of charge density waves and the electron spectrum. | Session 102: Pairing in the High-Tc Normal State: Evidence and Theoretical Models |
| 1397 | Superconductivity and doping on oxygen in the three band model | KOWALSKI, Nicolas; Tremblay, A.-M.; Sémon, patrick | Using the CDMFT approximation and a finite temperature CT-HYB impurity solver, we investigate the phase diagram of the three-band Hubbard model in order to reproduce those results with theoretical means. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1398 | Optimizing superconductivity in the three-band Hubbard model | Dash, Sidhartha; Senechal, David | Our goal is to maximize the superconducting order parameter and identify the model characteristics that most enhance superconductivity. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1399 | Orbital structure of the effective pairing interaction in the high-temperature superconducting cuprates | Mai, Peizhi; Balduzzi, Giovanni; Johnston, Steven; Maier, Thomas | Here, we use dynamic cluster approximation to study the orbital structure of the pairing interaction in the three-band Hubbard model, which treats the orbital degrees of freedom explicitly. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1400 | Cooperative enhancement of superconducting pairing at quarter filling by electron-electron and electron-phonon interactions | Roy, Dipayan; Clay, R. | We present direct evidence from quantum Monte Carlo calculations of cooperative, as opposed to competing, effects of electron-electron and electron-phonon interactions within the frustrated Hubbard Hamiltonian, uniquely at the band-filling of one-quarter[1]. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1401 | Normal charge densities in cold quantum critical superfluids | Mefford, Eric; Gouteraux, Blaise | We revisit these arguments in the context of superfluid hydrodynamics and demonstrate that consistently coupling the system to external sources allows for a large low-temperature normal density. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1402 | Enhanced A1g Raman response in unconventional superconductors due to Higgs oscillations | Puviani, Matteo; Manske, Dirk | In our work, we have calculated the Raman contribution of the amplitude mode from a new perspective, including many-body dressing effects, demonstrating its role in the long-standing problem concerning the intensity of the A1g Raman spectrum in cuprates. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1403 | Optical responses of Higgs and Leggett modes in multiband superconductors | Kamatani, Takumi; Tsuji, Naoto; Kitamura, Sota; Morimoto, Takahiro | We use a diagrammatic method to compute optical conductivities that arise from these collective excitations. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1404 | Superconductivity in the doped quantum spin liquid on the triangular lattice | Jiang, Hong-Chen | We address the problem of a lightly doped QSL through a large-scale density-matrix renormalization group study of the t-J model on the triangular lattice with a small but non-zero concentration of doped holes. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1405 | Topological superconductivity in the doped chiral spin liquid on the triangular lattice | Jiang, Yi-Fan; Jiang, Hong-Chen | We address this problem by studying the t-J model supplemented by time-reversal symmetry breaking chiral interaction J χ on the triangular lattice using density-matrix renormalization group with a finite concentration δ of doped holes. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1406 | Multiorbital superconducting mechanism for a new-type cuprate Ba2CuO3+δ based on a Lieb-lattice model | Yamazaki, Kimihiro; Ochi, Masayuki; Ogura, Daisuke; Kuroki, Kazuhiko; Eisaki, Hiroshi; Uchida, Shin-ichi; Aoki, Hideo | For the newly discovered cuprate superconductor Ba 2CuO 3+δ, we propose a lattice structure which resembles the model considered by Lieb to represent the vastly oxygen-deficient CuO 2 planes [1]. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1407 | Photoinduced η-pairing at finite temperatures | Ejima, Satoshi; Kaneko, Tatsuya; Lange, Florian; Yunoki, Seiji; Fehske, Holger | We numerically prove photoinduced η-pairing in a half-filled fermionic Hubbard chain at both zero and finite temperature. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1408 | Quatonic and SpinQuatonic Superconductors: Twisted Bilayer Graphene and Cuprates | Nam, Sang-Boo | Quatonic and SpinQuatonic Superconductors: Twisted Bilayer Graphene and Cuprates | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1409 | Fluctuating Pair-Density Wave in anisotropic strongly coupled pairing system | Fanfarillo, Laura; Setty, Chandan; Hirschfeld, Peter | In this talk I will discuss an analytically solvable model to examine possible pairing phases in the strongly coupled regime in the presence of anisotropic interactions. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1410 | Finding Tc in an attractive-U Hubbard-metallic bilayer system. | Dee, Philip; Johnston, Steven; Maier, Thomas | We examine this question by studying a bilayer system comprised of an attractive Hubbard layer and a metallic layer coupled with an interlayer hopping using the dynamical cluster approximation. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1411 | Large scale simulations of topological defects in pair density waves | Liu, YiHsuan; Lee, Ting-Kuo; Chern, Gia-wei | To investigate the effects of spatial inhomogeneity, we combine the kernel polynomial method (KPM), which offers linear-scaling electronic structure calculation, with the renormalized mean-field theory (RMFT) for $t$-$J$ model. | Session 103: Superconductivity Theory: Cuprates and doped spin liquids |
| 1412 | Multiorbital singlet pairing and d + d superconductivity | Nica, Emilian; Si, Qimiao | Here, we advance several time-reversal-invariant irreducible pairings that go beyond the standard singlet functions through a matrix structure in the band/orbital space, and elucidate their naturalness in multiband systems. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1413 | Robustness of unconventional s-wave superconducting states against disorder | Cavanagh, David; Brydon, Philip | We have developed a general framework, based on the self-consistent Born approximation, to understand the stability of orbitally non-trivial superconductors against disorder, and applied this framework to several multi-band superconductors. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1414 | Attraction from repulsion: unconventional superconductivity in flat bands due to far-out pairs | Dong, Zhiyu; Levitov, Leonid | This talk will describe a new repulsion-dominated pairing mechanism that utilizes a nimbus of far-out pairs in the empty band positioned above the conduction band. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1415 | Bogoliubov-Fermi Surfaces in Noncentrosymmetric Multicomponent Superconductors | Link, Julia; Herbut, Igor | We show that when the time reversal symmetry is broken in a multicomponent superconducting condensate without inversion symmetry the resulting Bogoliubov quasiparticles generically exhibit mini-Bogoliubov-Fermi (BF) surfaces, for small superconducting order parameter [1]. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1416 | Cooper instability in the Jellium model: Implicit renormalization approach | Cai, Xiansheng; Wang, Tao; Chen, Kun; Svistunov, Boris; Prokof’ev, Nikolai | We study superconducting properties of the jellium model by the implicit renormalization approach, which enables us to reliably determine the exponentially low transition temperatures in s-, p-, and d-channels. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1417 | Unconventional superconductivity mediated by the "Higgs" amplitude mode in itinerant ferromagnets | Forestano, Roy; Heath, Joshuah; Bedell, Kevin | In this work, we return to this issue by introducing the effects of a gapped amplitude (or "Higgs") mode on the vertex corrections and subsequent form of Cooper pairing. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1418 | Vertex bosonization in the Hubbard model: a new perspective | Bonetti, Pietro; Vilardi, Demetrio; Metzner, Walter | The two-particle vertex is an essential ingredient in the study of strongly correlated electrons as it provides useful information on the collective excitations of the system. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1419 | Spontaneous Time-Reversal Symmetry Breaking in the Normal Phase of Unconventional Superconductors | Zeng, Meng; Hu, Lunhui; Hu, Hong-Ye; You, Yizhuang; Wu, Congjun | In this work, we show that TRS breaking transition can occur due to superconducting phase fluctuations before the onset of superconductivity. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1420 | Electron irradiation effects on superconductivity in PdTe2: An application of a generalized Anderson theorem | Orth, Peter; Timmons, Erik; Teknowijoyo, Serafim; Konczykowski, Marcin; Cavani, Olivier; Tanatar, Makariy; Ghimire, Sunil; Cho, Kyuil; Lee, Yongbin; Ke, Liqin; Jo, Na Hyun; Budko, Sergey; Canfield, Paul; Scheurer, Mathias; Prozorov, Ruslan | We present a general theoretical framework for analyzing irradiation studies in spin-orbit-coupled multiorbital systems, which is based on a generalized Anderson theorem for multiband superconductors. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1421 | Renormalization-Group Approach to Odd-Frequency Superconductivity | Ejigu, Henoc; Tsai, Shan-Wen | We present a self-contained derivation of the flow equations for the vertex function and electron self-energy. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1422 | Odd frequency pairing of superconductivity in quantum critical metals | Wu, Yi-Ming; Chubukov, Andrey | We analyze a possibility of odd frequency pairing for a model of fermions near a metallic quantum-critical point. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1423 | Thermodynamics and coherence effects in the Hatsugai-Kohmoto superconductor | Yeo, Luke; Huang, Edwin; Phillips, Philip | Specifically, we consider its thermodynamic entropy, specific heat, and free energy, as well as the system’s ultrasonic attenuation and nuclear spin relaxation rates. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1424 | Domes of Tc in single and multiband dilute superconductors with extended attractive interactions | Boudjada, Nazim; Buessen, Finn; Paramekanti, Arun | In an effort to explain experimental signatures such as the weak dependence of Tc on the carrier density, the emergence of multiple domes, and the very dilute regime over which superconductivity is observed in both 2D and 3D, we propose a toy model of electrons coupled via a spatially extended interaction. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1425 | Superconductivity from energy fluctuations in dilute quantum critical polar metals | Chandra, Premala; Volkov, Pavel; Coleman, Piers | Here we show that in dilute metals near polar quantum critical points the Coulomb repulsion can be surpassed by the attraction mediated by zero-point energy fluctuations of the critical polar mode. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1426 | Odd–Parity Spin–Triplet Superconductivity in Centrosymmetric Antiferromagnetic Metals | Lee, Seung Hun; Choi, Hongchul; Yang, Bohm-Jung | We propose a route to achieve odd-parity spin-triplet superconductivity in metallic collinear antiferromagnets with inversion symmetry. | Session 104: Superconductivity Theory: Multiband systems and unconventional order |
| 1427 | Thermal Hall Conductivity in Cuprates | Boulanger, Marie-Eve; Grissonnanche, Gael; Badoux, Sven; Lefrancois, Etienne; Legros, Anaelle; Gourgout, Adrien; Dion, Maxime; Wang, Cuihuan; Chen, Xianhui; Liang, Ruixing; Hardy, Walter; Bonn, Douglas; Taillefer, Louis | This comparative study [3] shows that a large k xy is still present in those Mott insulators, ruling out mechanisms such as apical oxygen, spin canting or structural domains. | Session 105: Superconductivity: Transport Properties |
| 1428 | Chiral phonons in the pseudogap phase of cuprates | Thériault, Steven; Grissonnanche, Gael; Gourgout, Adrien; Boulanger, Marie-Eve; Lefrancois, Etienne; Laliberte, Francis; Ataei, Amirreza; Dion, Maxime; Pyon, Sunseng; Zhou, Jianshi; Takayama, Tomohiro; Takagi, Hidenori; Doiron-Leyraud, Nicolas; Taillefer, Louis | Here we show that the thermal Hall conductivity of the Mott insulator La 2CuO 4 is roughly the same for heat transport parallel and normal to the CuO 2 planes, i.e. κ zy( T) ≈ κ xy( T) [2]. | Session 105: Superconductivity: Transport Properties |
| 1429 | Linear-in-field magnetoresistance in cuprates | Ataei, Amirreza; Gourgout, Adrien; Laliberte, Francis; Badoux, Sven; Grissonnanche, Gael; benhabib, siham; Vignolles, David; Zhou, Jianshi; Doiron-Leyraud, Nicolas; Proust, Cyril; Taillefer, Louis | Here we report measurements of the resistivity in Nd-LSCO and LSCO near p* in magnetic fields H up to 85 T. | Session 105: Superconductivity: Transport Properties |
| 1430 | Thermal Transport in Superconductors with coexisting Spin Density Wave Order | Sen Choudhury, Sourav; Vorontsov, Anton | We describe the influence of the Fermi surface (FS) topology, the competition between the SC and SDW order parameters, the presence or absence of zero energy excitations in the coexistence phase, on the low temperature behaviour of thermal conductivity of the various paring states. | Session 105: Superconductivity: Transport Properties |
| 1431 | Thermoelectric Effects in Superconductor-Ferromagnetic Heterostructures | Blagg, Kirsten; Allen, Portia; Singh, Meenakshi | Here, we directly measure the Seebeck coefficient (△V/△T) of an Al-Ni junction below 1 K. To accurately measure and generate a temperature gradient, we utilize focused-ion beam deposited platinum (FIB Pt) as local nanoscale resistive thermometers and an FIB Pt on-chip joule heater. | Session 105: Superconductivity: Transport Properties |
| 1432 | Spin Valve Effect in all-oxide Superconductor/Ferromagnet Junctions | LAGARRIGUE, Aurélien; Mesoraca, Salvatore; Sanchez, David; Sander, Anke; Briatico, Javier; Trastoy, Juan; Santamaria, Jacobo; Villegas, Javier | Here we demonstrate spin-valve effects in vertical junctions made of the d-wave superconductor YBa 2Cu 3O 7 and a half-metal La 0.7Ca 0.3MnO 3. | Session 105: Superconductivity: Transport Properties |
| 1433 | Giant surface Edelstein effect in d-wave superconductors | Ikeda, Yuhei; Yanase, Youichi | In this talk, I will discuss the origin of the enhancement and show that this is attributed to surface Majorana states characteristic of gapless spin-singlet non-centrosymmetric superconductors. | Session 105: Superconductivity: Transport Properties |
| 1434 | High magnetic field compatible nanowire hybrids (part I): Conductance spectroscopy | Mazur, Grzegorz; van Loo, Nick; Quintero-Peréz, Marina; Wang, Jiyin; Vinke, Peter; Dekker, Robin; Borsoi, Francesco; Andrzejczuk, Mariusz; Badawy, Ghada; Gazibegovic, Sasa; Bakkers, Erik; Heedt, Sebastian; Kouwenhoven, Leo | I will discuss opportunities for increasing field compatibility of InSb/Al hybrids by lifting the Pauli limit within the superconducting segment. | Session 105: Superconductivity: Transport Properties |
| 1435 | High magnetic field compatible nanowire hybrids (part II): exploring bulk induced superconductivity | van Loo, Nick; Mazur, Grzegorz; Wang, Jiyin; Dekker, Robin; Badawy, Ghada; Gazibegovic, Sasa; Bakkers, Erik; Heedt, Sebastian; Kouwenhoven, Leo | In this work, we go beyond standard density-of-states spectroscopy. | Session 105: Superconductivity: Transport Properties |
| 1436 | Thermoelectric detection of Andreev states in unconventional superconductors | Savander, Tony; Tamura, Shun; Flindt, Christian; Tanaka, Yukio; Burset, Pablo | We theoretically describe a thermoelectric effect that is entirely due to Andreev processes involving the formation of Cooper pairs through the coupling of electrons and holes. | Session 105: Superconductivity: Transport Properties |
| 1437 | DC Hall measurements in the strongly correlated Hubbard model | Wang, Wen; Ding, Jixun; Moritz, Brian; Huang, Edwin; Devereaux, Thomas | We investigate the DC Hall conductivity, an indicator of charge carrier properties, of the single-band Hubbard model in the zero field limit[1] using determinant quantum Monte Carlo (DQMC). | Session 105: Superconductivity: Transport Properties |
| 1438 | Electrical and Thermal Transport in Antiferromagnet-Superconductor Junctions | Jakobsen, Martin; Brataas, Arne; Dutta, Paramita; Naess, Kristian; Qaiumzadeh, Alireza | We demonstrate that antiferromagnet-superconductor (AF-S) junctions show qualitatively different transport properties than normal metal-superconductor (N-S) and ferromagnet-superconductor (F-S) junctions. | Session 105: Superconductivity: Transport Properties |
| 1439 | Retention of the high-pressure-induced metastable superconducting phases in Bi | Bontke, Trevor; Deng, Liangzi; Dahal, Rabin; Wu, Zhen; Chu, Ching | Retention of the high-pressure-induced metastable superconducting phases in Bi | Session 105: Superconductivity: Transport Properties |
| 1440 | Electron-phonon and electron-electron interactions in electron doped aromatic carbon materials viewed from electrical transport | Tanigaki, Katsumi; Matsuda, Yuki; Heguri, Satoshi | Here, we give experimental results that accurate electrical resistivity can be achieved for a variety A 3C 60 with expanded V cell(C 60 3-) near the Mott boundary and other hydrocarbons under various temperature (T) and pressure (P). | Session 105: Superconductivity: Transport Properties |
| 1441 | The effect of the pseudogap on thermomagnetic transport in cuprates | Boyack, Rufus; Wang, Zhiqiang; Chen, Qijin; Levin, Kathryn | Here we present a strong-pairing correlation theory for the pseudogap phase in which both bosonic (or preformed pairs) and gapped fermionic excitations are present. | Session 105: Superconductivity: Transport Properties |
| 1442 | Suppression of the susceptibility in superconducting Sr2RuO4 observed by polarized neutron scattering | Petsch, Alexander; Zhu, Mengze; Enderle, Mechthild; Mao, Zhiqiang; Maeno, Yoshiteru; Mazin, Igor; Hayden, Stephen | Here we present a new measurement of the spin susceptibility by polarized neutron scattering. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1443 | Effect of uniaxial strain on the superconducting state of Sr2RuO4 | Mueller, Eli; Iguchi, Yusuke; Watson, Christopher; Hicks, Clifford; Maeno, Yoshiteru; Moler, Kathryn | In this talk, we report on a scanning SQUID susceptometry measurement in which we map the diamagnetic response of Sr 2RuO 4 as a function of temperature and uniaxial strain with micron-scale spatial resolution. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1444 | Quasiparticle properties of thin-film Sr2RuO4 | Fang, Yawen; Nair, Hari; Miao, Ludi; Schreiber, Nathaniel; Schlom, Darrell; Shen, Kyle; Ramshaw, Brad | To understand the limiting factors of film quality, we model the magnetotransport and find that the quantum lifetime agrees well with the transport lifetime, indicating that large-angle point scattering is likely the limiting factor of the quasiparticle lifetime, rather than extended defects like substrate step edges or strain gradients. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1445 | Inhomogeneous time-reversal symmetry breaking in Sr2RuO4 | Willa, Roland; Hecker, Matthias; Fernandes, Rafael; Schmalian, Joerg | We show that the observed time-reversal symmetry breaking (TRSB) of the superconducting state in Sr 2RuO 4 can be understood as originating from inhomogeneous strain fields near edge dislocations of the crystal. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1446 | Josephson effect experiments probing the pairing symmetry of Sr2RuO4 | McKee, Nathan; Nelson, Karl; Mao, Zhiqiang; Liu, Ying | Here we report measurements on Josephson effect devices of in-plane corner Josephson junctions prepared on both bulk crystals with two adjacent polished surfaces 90 degrees apart and thin crystals of a mesoscopic size obtained by mechanical exfoliation with two crystal edges of a known angle. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1447 | Topological transitions in curved superconductor nanostructures under a strong transport current | Rezaev, R.; Smirnova, E.; Schmidt, O.; Fomin, V. M. | We report on a topological transition between the vortex-chain and phase-slip regimes under a strong transport current in an open SC nanotube with a submicron-scale inhomogeneity of the normal-to-the-surface component of the applied magnetic field. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1448 | Negative Differential Conductance in Cooper Pair Box Based on InSb Nanowire | Yang, Guang; Shi, Jiayu; Qian, Degui; Shen, Jie | To figure out the source of NDC, we performed the measurement of the NDC as a function of the junction barrier, chemical potential of the superconducting island and magnetic field. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1449 | Thermoelectric Current in a Graphene Cooper Pair Splitter | Tan, Zhenbing; Laitinen, Antti; Kirsanov, Nikita; Galda, Alexey; Vinokour, Valerii; Haque, Mohammad Tasnimul; Savin, Alexander; Golubev, Dmitry; Lesovik, Gordey; Hakonen, Pertti | We propose a coherent transport description of the nonlocal Seebeck effect and demonstrate its agreement with the experimental observations in a graphene-based Cooper pair splitting device. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1450 | Superconducting gap symmetry in Sr2RuO4 from linearized Eliashberg equation and Two-Particle Self-Consistent approach. | Zantout, Karim; Valenti, Roser | In view of the ongoing discussion regarding the superconducting gap symmetry in Sr 2RuO 4 we present results for different low-energy Hubbard models. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1451 | Evidence for even parity unconventional superconductivity in Sr2RuO4 | Pustogow, Andrej; Luo, Yongkang; Chronister, Aaron; Su, Yue-Shun; Sokolov, Dmitry; Jerzembeck, Fabian; Mackenzie, Andrew; Hicks, Clifford; Kikugawa, Naoki; Raghu, Srinivas; Bauer, Eric; Brown, Stuart | Here we use 17O NMR spectroscopy to probe the nature of the SC state in Sr 2RuO 4 and its evolution with magnetic field. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1452 | Evolution of Shadowed Triplet Superconductor to Spin-Density Wave in Sr2RuO4 and Sr3Ru2O7 | Lindquist, Austin; Clepkens, Jonathan; Kee, Hae-Young | Here, we extend this microscopic theory to Sr 3Ru 2O 7, the bilayer version of Sr 2RuO 4 to explain why Sr 3Ru 2O 7 does not exhibit superconductivity, but spin-density wave order under a magnetic field. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1453 | Direct-writing of complex 3D nano-superconductors | Córdoba, Rosa; Mailly, Dominique; Ibarra, Alfonso; Rezaev, R.; Smirnova, E.; Schmidt, O.; Fomin, V. M.; Zeitler, Uli; Guillamon, Isabel; Suderow, Hermann; DE TERESA NOGUERAS, JOSE MARIA | Here, we introduce a template-free nano-lithography method to fabricate in a single-step 3D nano-superconductors with arbitrary geometry. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1454 | Identifying possible pairing states in Sr2RuO4 by tunneling spectroscopy | Suzuki, Shu; Sato, Masatoshi; Tanaka, Yukio | We examine the tunneling spectroscopy of three-dimensional normal-metal/Sr2RuO4 junctions as an experimental means to identify pairing symmetry in Sr2RuO4. | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1455 | Superconducting gap-symmetry from Bogoliubov quasiparticle interference analysis on Strontium Ruthenate | Bhattacharyya, Shinibali; Mueller, Marvin; Rømer, Astrid; Sulangi, Miguel Antonio; Kreisel, Andreas; Eremin, Ilya; Andersen, Brian; Hirschfeld, Peter | In this context, we use different gap order parameters, as obtained within weak coupling spin-fluctuation theory in the work by Romer et al (PRL, 123.247001, 2019). | Session 106: Superconductivity: Mesoscopic, Nanometer Scale Phenomena andRuthenates |
| 1456 | Understanding the Chiral Topological Behavior of Certain PEPS Models Through Detection of Conserved Quantities from the Conformal Boundary State Description of the Real Space Entanglement Spectrum | Arildsen, Mark; Ludwig, Andreas | Using the conformal boundary state description, we examined the splittings of these degeneracies in systems with global SU(2) symmetry. | Session 107: Symmetries in Topological Phases |
| 1457 | Symmetry protected topological phases beyond groups: The q-deformed bilinear-biquadratic spin chain and the associated quantum group invariant AKLT model | Quella, Thomas | We argue that the q-deformed spin-1 AKLT Hamiltonian should be regarded as a representative of a symmetry protected topological phase. | Session 107: Symmetries in Topological Phases |
| 1458 | Gauge Theories and Stabilizer Codes: From Abelian to non-Abelian models | Tu, Yi-Ting; Chang, Po-Yao | We compare and contrast these formulations, and investigate their generalizations to non-Abelian gauge theories. | Session 107: Symmetries in Topological Phases |
| 1459 | Gauging anomalous unitary operators | Liu, Yuhan; Shapourian, Hassan; Glorioso, Paolo; Ryu, Shinsei | In this paper, we discuss the characterization of such obstruction by using quantum anomalies. | Session 107: Symmetries in Topological Phases |
| 1460 | Mixed anomalies and the modular bootstrap | Lanzetta, Ryan; Fidkowski, Lukasz | We use the modular bootstrap to put quantitative bounds on aspects of (1+1)D conformal field theories (CFTs) that saturate these LSM-type anomalies. | Session 107: Symmetries in Topological Phases |
| 1461 | Protection of parity-time symmetry in topological many-body systems | Shackleton, Henry; Scheurer, Mathias | In the study of PT-symmetric quantum systems with non-Hermitian perturbations, one of the most important questions is whether eigenvalues stay real or whether PT symmetry is spontaneously broken when eigenvalues meet. | Session 107: Symmetries in Topological Phases |
| 1462 | Climbing the ladder of topological bosonic orbifold phases in the orthogonal family: from gauging dihedral symmetry to metaplectic anyons and more | Teo, Jeffrey; Hu, Yichen | We present a coupled-wire model of a family of bosonic orbifold topological phases in two spatial dimensions using strongly interacting electrons with a charge 4e superconducting pairing. | Session 107: Symmetries in Topological Phases |
| 1463 | Subsystem Symmetry Enriched Topological Order in Three Dimensions | Stephen, David; Garre-Rubio, José; Dua, Arpit; Williamson, Dominic | We construct a model of three dimensional (3D) topological order enriched by planar subsystem symmetries by decorating the 3D toric code with two-dimensional subsystem symmetry-protected topological orders. | Session 107: Symmetries in Topological Phases |
| 1464 | Symmetry Classfication of Two-dimensional Topologically Ordered Phases Under Exchange of 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 107: Symmetries in Topological Phases |
| 1465 | Supercohomology symmetry protected topological (SPT) phases and bosonic 2-group SPT phases in (3+1)D | Chen, Yu-An; Ellison, Tyler; Tantivasadakarn, Nathanan | In this talk, a generalization for (3+1)D intrinsically interacting fermionic SPT phases, known as the supercohomology phases, will be introduced. | Session 107: Symmetries in Topological Phases |
| 1466 | Entanglement bootstrap approach for gapped domain walls | Shi, Bowen; Kim, Isaac | We propose a set of axioms regarding the ground state entanglement entropy of systems that can host gapped domain walls, generalizing the bulk axioms proposed in. | Session 107: Symmetries in Topological Phases |
| 1467 | Real-time dynamics of string breaking in quantum spin chains | Verdel, Roberto; Liu, Fangli; Whitsitt, Seth; Gorshkov, Alexey; Heyl, Markus | We find that string breaking occurs, in general, as a two-stage process. | Session 108: Precision Many-Body Physics: Dynamics |
| 1468 | Quantum many-body dynamics in two dimensions with artificial neural networks | Schmitt, Markus; Heyl, Markus | We present a versatile and efficient machine learning inspired approach based on a recently introduced artificial neural network encoding of quantum many-body wave functions. | Session 108: Precision Many-Body Physics: Dynamics |
| 1469 | Superdiffusion and the chaotic-integrable crossover in Heisenberg spin-chains | McCulloch, Ewan; Rakovszky, Tibor; von Keyserlingk, Curt; Pollmann, Frank | In this work we use DAOE to obtain well-converged predictions for the super-diffusion exponent and super-diffusion constant in the isotropic XXZ chain and discuss the crossover between integrable and chaotic dynamics in experimentally accessible quantum magnets. | Session 108: Precision Many-Body Physics: Dynamics |
| 1470 | Integrability breaking in cellular automata | Lopez-Piqueres, Javier; Gopalakrishnan, Sarang; Vasseur, Romain | In this work we study the Rule 54 model, perhaps the simplest non-trivial quantum integrable model, which features two species of solitons. | Session 108: Precision Many-Body Physics: Dynamics |
| 1471 | Generalized hydrodynamics in strongly interacting 1D Bose gases (I) | Le, Yuan; Malvania, Neel; Zhang, Yicheng; Dubail, Jerome; Rigol, Marcos; Weiss, David | We find excellent agreement between the experiment and GHD theory for long times after the trap quench, with dimensionless coupling parameters that range from 0.3 to 9.3, demonstrating that the approximations that underlie GHD are appropriate for many cold atom experiments. | Session 108: Precision Many-Body Physics: Dynamics |
| 1472 | Generalized hydrodynamics in strongly interacting 1D Bose gases (II) | Zhang, Yicheng; Malvania, Neel; Le, Yuan; Dubail, Jerome; Rigol, Marcos; Weiss, David | In this second talk on our results [1], we discuss the theoretical calculations behind the theory-experiment comparison. | Session 108: Precision Many-Body Physics: Dynamics |
| 1473 | Dynamical properties of the spin-boson model using real-time quantum Monte Carlo | Goulko, Olga; Cohen, Guy; Goldstein, Moshe; Chen, Hsing-Ta | We present results for the real-time dynamics of the spin-boson model (a two-state system coupled to a bath of non-interacting harmonic modes) using the inchworm Monte Carlo algorithm. | Session 108: Precision Many-Body Physics: Dynamics |
| 1474 | Optimised counderdiabatic driving with additional terms | Cepaite, Ieva; Duncan, Callum; Daley, Andrew; Polkovnikov, Anatoli | We apply this new approach to random graph problems encoded in spin Hamiltonians, such as the maximum independent set and find a substantial improvement over naive adiabatic methods when optimising the additional driving terms. | Session 108: Precision Many-Body Physics: Dynamics |
| 1475 | Space- and time-crystallization effects in multicomponent superfluids | Svistunov, Boris; Prokof’ev, Nikolai | We observe that space- and time-crystallization effects in multicomponent superfluids—while having the same physical origin and mathematical description as in the single-component case—are conceptually much more straightforward. | Session 108: Precision Many-Body Physics: Dynamics |
| 1476 | Simulating open quantum many-body systems using matrix product state purifications | Zhang, Yikang; Zhang, Xin; Barthel, Thomas | We introduce a new algorithm based on matrix product state purifications to simulate open many-body systems. | Session 108: Precision Many-Body Physics: Dynamics |
| 1477 | Quantum Phase Transitions Go Dynamical | Gurarie, Victor | These singularities which occur at certain points in time in the evolution of a quantum system are the subject of this talk. | Session 108: Precision Many-Body Physics: Dynamics |
| 1478 | Simulation of Finite Temperature Dynamics using Purification MPS | Anand, Sajant; Hauschild, Johannes; Zaletel, Michael | In this work, we optimize the purification and exploit this gauge freedom to minimize the entanglement of the purification MPS. | Session 108: Precision Many-Body Physics: Dynamics |
| 1479 | Prethermalization and relaxation rates of observables in isolated quantum systems | Mallayya, Krishnanand; Rigol, Marcos | We study the phenomenon of prethermalization following quantum quenches in generic isolated many body systems wherein the relaxation dynamics of observables involve two regimes: a fast prethermalization and a slow thermalization. | Session 108: Precision Many-Body Physics: Dynamics |
| 1480 | Pressure effect on the diffusion of carbon at the 85.91o <100> symmetric tilt grain boundary of α-iron | Rahman, Md Mijanur; El-Mellouhi, Fedwa; Bouhali, Othmane; S. Becquart, Charlotte; Mousseau, Normand | In this study, using the kinetic activation-relaxation technique an off-lattice KMC algorithm with on-the-fly catalog building that allows obtaining diffusion properties over large time scales taking full account of chemical and elastic effects coupled with an EAM potential, we investigate the pressure effect on the diffusion properties of C in 85.91 o <100> symmetric tilt GB of α-iron within a range of -1.2GPa to 1.2GPa at a temperature of 600K. | Session 109: Metals: Structural |
| 1481 | Bayesian optimization of high entropy alloy properties | Moitzi, Franco; Romaner, Lorenz; Ruban, Andrei; Peil, Oleg | In this work, we present a computationally efficient high-throughput workflow based on ab initio calculations within the coherent potential approximation. | Session 109: Metals: Structural |
| 1482 | Development of Reference-free (RF) MEAM Interatomic Potentials for Transition Metal-rich Carbides | McGilvry-James, Tyler; Duff, Andrew; Timalsina, Bikash; Niraula, Alin; Rabbani, Muztoba; Baishnab, Nirmal; Adhikari, Puja; San, Saro; Ching, Wai-Yim; Sakidja, Ridwan | Development of Reference-free (RF) MEAM Interatomic Potentials for Transition Metal-rich Carbides | Session 109: Metals: Structural |
| 1483 | Influence of Mn on nanoscale precipitate formation in Al-Cu-Mn alloys | ZHANG, ZHAOHAN; Roy, Samarendra; Roy, Shibayan; Mishra, Rohan | In this work, we fabricated Al-Cu-Mn alloys with varying Mn concentration (0.3-1% wt.) | Session 109: Metals: Structural |
| 1484 | Investigation of electric current-assisted fabrication parameters for nanocarbon-Al composites with improved electrical conductivity and tensile strength | Morales, Madeline; Ge, Xiaoxiao; Klingshirn, Christopher; Salamanca-Riba, Lourdes | Electric current-assisted processing of a class of materials, called “covetics,” presents a scalable method of production for nanocarbon-Al composites by applying a direct current to a molten mixure of Al-1350 and activated carbon precursor. | Session 109: Metals: Structural |
| 1485 | Effect of build direction in laser powder bed fusion additive manufacturing on surface oxide chemistry of 316L stainless steel | Sen-Britain, Shohini; Qi, Zhen; Voisin, Thomas; Wood, Brandon; Wang, Morris | In this work, we used surface sensitive spectroscopies to show that build direction influences oxide composition. | Session 109: Metals: Structural |
| 1486 | Vacancy-mediated Phase Selection in High-Entropy Alloys | Singh, Prashant; Gupta, Shalabh; Kramer, Matthew J; Johnson, Duane D. | We highlight the importance of vacancy-mediated stability in refractory high-entropy alloys (HEAs), where even small amounts of vacancies suppress chemical short-range order (SRO) and drive vacancy ordering. | Session 109: Metals: Structural |
| 1487 | Surface-stress induced embrittlement of metals | Udupa, Anirudh; Sugihara, Tatsuya; Viswanathan, Koushik; Chandrasekar, Srinivasan | Using high-speed in situ imaging and post-facto analysis, we show that the monolayers induce a ductile-to-brittle transition. | Session 109: Metals: Structural |
| 1488 | Stabilities and mechanical properties of novel Mg-based light metal compositionally complex alloys | Mayr-Schmölzer, Wernfried; Kirschner, Johannes; Simson, Clemens; Eisenmenger-Sittner, Christoph; Bernardi, Johannes; Vonbun-Feldbauer, Gregor | We use both a Cluster Expansion approach, augmented by stochastic prescreening steps, and neural network based pair potentials to scan the large configuration space of the Mg-Al-Cu-Zn system for stable phases. | Session 109: Metals: Structural |
| 1489 | Effect of full potential treatment of semi-core states on shear elastic constants | Tian, Fuyang; Wang, Yang | In this presentation, we show a full-potential Green function approach to the treatment of the semi-core states which does not require the spherical potential approximation. | Session 109: Metals: Structural |
| 1490 | Thermomechanical conversion in metals: dislocation plasticity model evaluation of the Taylor-Quinney coefficient | Lieou, Charles; Bronkhorst, Curt | Using a partitioned-energy thermodynamic framework which assigns energy to that of atomic configurational stored energy of cold work and kinetic-vibrational, we derive an important constraint on the Taylor-Quinney coefficient, which quantifies the fraction of plastic work that is converted into heat during plastic deformation. | Session 109: Metals: Structural |
| 1491 | Hybrid Cuckoo Search for Accelerating Modeling and Design of High-Entropy Alloys | Johnson, Duane D.; Singh, Prashant; Balasubramanian, Ganesh | To enable computational design, we use a metaheuristic Hybrid Cuckoo Search (CS) to construct models on-the-fly having targeted atomic site and pair probabilities on arbitrary crystal lattices, configurations represented by Super-Cell Random APproximates (SCRAPs). | Session 109: Metals: Structural |
| 1492 | Revealing nanoscale local chemical environments governing diffusion within binary concentrated alloys through machine learning | Taheri-Mousavi, S. Mohadeseh; Moeini-Ardakani, S. Sina; Penny, Ryan; Li, Ju; Hart, A. John | Here, we present a numerical framework wherein a deep-learning algorithm supervised by atomistic-scale simulations is used to explore the immense configurational breadth of alloys near vacancies. | Session 109: Metals: Structural |
| 1493 | Screening corrosion-resistant binary magnesium alloys through high-throughput computations | Wang, Yaowei; Xie, Tian; Zhu, Hong | Our work provides a high-throughput screening strategy for corrosion-resistant alloy design, which can also be extended to screen ternary intermetallics or other alloy systems. | Session 109: Metals: Structural |
| 1494 | A data-driven approach to study the order-disorder transition in high entropy alloys | Liu, Xianglin; Zhang, Jiaxin; Yin, Junqi; Bi, Siyu; Eisenbach, Markus; Wang, Yang | We introduce a data-driven approach to construct the effective Hamiltonian from first principles data, and apply it to study the thermodynamics of HEAs through canonical Monte Carlo simulation. | Session 109: Metals: Structural |
| 1495 | Electron-phonon hydrodynamics | Huang, Xiaoyang; Lucas, Andrew | We develop the theory of hydrodynamics of an isotropic Fermi liquid of electrons coupled to isotropic acoustic phonons, assuming that umklapp processes may be neglected. | Session 110: Quantum Fluids & Solids |
| 1496 | Fermionic superfluidity in finite one-dimensional spin-imbalanced systems: A configuration-space Hartree-Fock-Bogoliubov approach | Patton, Kelly; Sheehy, Daniel | Ground state Hartree-Fock-Bogoliubov (HFB) theory is applied to spin imbalanced one dimensional Fermi systems with short-range interactions that are spatially confined by either a harmonic or a hard-wall trapping potential. | Session 110: Quantum Fluids & Solids |
| 1497 | Vortices and Fractons | Doshi, Darshil; Gromov, Andrey | We propose a novel mechanism for fractons with promising experimental availability. | Session 110: Quantum Fluids & Solids |
| 1498 | Fracton models with crystalline symmetries in two dimensions | He, Tianyu; Gromov, Andrey | Upon gauging we introduce gauge fields that transform under irreducible representations of discrete rotations. | Session 110: Quantum Fluids & Solids |
| 1499 | Multi-component Solitons in Atomic Bose-Einstein Condensates | Kevrekidis, Panayotis | In this talk, we will mention a number of recent developments on multi-component wave patterns in Bose-Einstein condensates. | Session 110: Quantum Fluids & Solids |
| 1500 | Variational and parquet-diagram calculations for neutron matter: S-wave pairing | Krotscheck, Eckhard; Wang, Jiawei | We apply parquet-diagram summation methods for the calculation of the superfluid gap in S-wave pairing in neutron matter for realistic nucleon-nucleon interactions such as the Argonne v 6 and the Reid v 6 potentials. | Session 110: Quantum Fluids & Solids |
| 1501 | Observation of Wigner crystal of electrons in a monolayer semiconductor | Smolenski, Tomasz; Dolgirev, Pavel; Kuhlenkamp, Clemens; Popert, Alexander; Shimazaki, Yuya; Back, Patrick; Kroner, Martin; Watanabe, Kenji; Taniguchi, Takashi; Esterlis, Ilya; Demler, Eugene; Imamoglu, Atac | Here we provide a direct evidence that the electrons at densities < 3×10 11 cm -2 in a MoSe 2 monolayer spontaneously break continuous translation symmetry and form a WC even at B = 0 [*]. | Session 110: Quantum Fluids & Solids |
| 1502 | Phases and collective modes of bosons in a triangular lattice at finite temperature: A cluster mean field study | Malakar, Manali; Ray, Sayak; Sinha, Subhasis; Angom, Dilip | Motivated by the realization of Bose-Einstein condensates (BEC) in non-cubic lattices, in this work we study the phases and collective excitation of bosons with nearest neighbor interaction in a triangular lattice at finite temperature, using mean field (MF) and cluster mean field (CMF) theory. | Session 110: Quantum Fluids & Solids |
| 1503 | Beyond Ohm’s law — Bernoulli effect and streaming in electron hydrodynamics | Hui, Aaron; Oganesyan, Vadim; Kim, Eun-Ah | Here we propose experiments that can reveal rich hydrodynamic features in the system by tapping into the non-linearity of the Navier-Stokes equation. | Session 110: Quantum Fluids & Solids |
| 1504 | Electric polarization as a nonquantized topological response and boundary Luttinger theorem | Song, Xueyang; He, Yin-Chen; Vishwanath, Ashvin; Wang, Chong | We develop a nonperturbative approach to the bulk polarization of crystalline electric insulators in d ≥ 1 dimensions. | Session 110: Quantum Fluids & Solids |
| 1505 | Semiclassical theory of finite temperature dynamics of the sine-Gordon model | Kormos, Marton; Vörös, Dániel; Moca, Catalin Pascu; Zaránd, Gergely | We investigate the finite temperature dynamics of the sine-Gordon model by studying its dynamical correlation functions at low temperatures in the semiclassical approach. | Session 110: Quantum Fluids & Solids |
| 1506 | Crystal-to-Fracton Tensor Gauge Theory Dualities | Zhai, Zhengzheng; Pretko, Michael; Radzihovsky, Leo | We discuss the duality between elasticity of two-dimensional crystals and fracton tensor gauge theories, developed by two of the authors [1,2,3]. | Session 110: Quantum Fluids & Solids |
| 1507 | Half-Quantum Vortices in the Superfluid Phases of $^3$He Confined in Nafen | Regan, Robert; Wiman, Joshua; Sauls, James | Based on a strong-coupling Ginzburg-Landau theory that accounts for the relative stability of the confined equal-spin pairing superfluid phases in $^3$He, we report theoretical calculations for the structure of half-quantum vortices (HQVs) in the confined phases of $^3$He. | Session 110: Quantum Fluids & Solids |
| 1508 | An SO(5) Topological Superfluid | Holdhusen, William; Lerma-Hernández, Sergio; Ortiz, Gerardo; Dukelsky, Jorge | In this work, we derive an extension of the exactly-solvable SO(5) Richardson-Gaudin model with p-wave pairing and Heisenberg interactions. | Session 110: Quantum Fluids & Solids |
| 1509 | Fermionic propagator path integral Monte Carlo of the uniform electron gas and hydrogen plasma at warm-dense matter conditions | Filinov, Alexey; Bonitz, Michael | Fermionic propagator path integral Monte Carlo of the uniform electron gas and hydrogen plasma at warm-dense matter conditions | Session 110: Quantum Fluids & Solids |
| 1510 | Random matrix theory of quantum work in metallic grains | Lovas, Izabella; Grabarits, András; Kormos, Marton; Zaránd, Gergely | We apply a random matrix approach to describe the statistics of work performed on generic disordered, noninteracting fermionic systems during quantum quenches [1]. | Session 111: Thermalization and Chaos |
| 1511 | Many Body Scars as a Group Invariant Sector of Hilbert Space | Pakrouski, Kiryl; Pallegar, Preethi; Popov, Fedor; Klebanov, Igor | We present a class of Hamiltonians H for which a sector of the Hilbert space invariant under a Lie group G, which is not a symmetry of H, possesses the essential properties of many-body scar states. | Session 111: Thermalization and Chaos |
| 1512 | Quench dynamics of two unequal Luttinger liquids: "Large-scale" thermalization, prethermalization and impact of the temperature | Ruggiero, Paola; Foini, Laura; Giamarchi, Thierry | We study the effect of a quantum quench between two tunnel coupled Tomonaga-Luttinger liquids (TLLs) with different speed of sound and interaction parameter. | Session 111: Thermalization and Chaos |
| 1513 | Linear and logarithmic entanglement production in an interacting chaotic quantum system | Paul, Sanku; Bäcker, Arnd | We investigate the entanglement dynamics of a pair of classically chaotic coupled kicked rotors. | Session 111: Thermalization and Chaos |
| 1514 | Probing eigenstate thermalization with the emergence of fluctuation-dissipation relations in quantum simulators | Schuckert, Alexander; Knap, Michael | We propose a theory-independent route to probe the full eigenstate thermalization hypothesis in quantum simulators by observing the emergence of fluctuation-dissipation relations (FDRs). | Session 111: Thermalization and Chaos |
| 1515 | Spectral statistics in many-body quantum chaotic systems with symmetries | Moudgalya, Sanjay; Prem, Abhinav; Huse, David; Chan, Amos | For systems with conserved higher moments, we derive a field theory for the corresponding RK-Hamiltonian by proposing a generalized height field representation for the Hilbert space of the effective spin chain. | Session 111: Thermalization and Chaos |
| 1516 | Quasi-symmetry groups and many-body scar dynamics | Ren, Jie; Liang, Chenguang; Fang, Chen | We provide two related schemes for constructing one-dimensional spin models having on-demand quasi-symmetry groups, with exact periodic evolution of a pre-chosen product or matrix-product state under certain external fields. | Session 111: Thermalization and Chaos |
| 1517 | Quantum scars of bosons with correlated hopping | Hudomal, Ana; Vasic, Ivana; Regnault, Nicolas; Papic, Zlatko | Here we propose a realization of quantum many-body scars in a 1D bosonic lattice model with a "soft" constraint in the form of density-assisted hopping. | Session 111: Thermalization and Chaos |
| 1518 | Hilbert-space fragmentation from strict confinement | Yang, Zhicheng; Liu, Fangli; Gorshkov, Alexey; Iadecola, Thomas | We study one-dimensional spin-1/2 models in which strict confinement of Ising domain walls leads to the fragmentation of Hilbert space into exponentially many disconnected subspaces. | Session 111: Thermalization and Chaos |
| 1519 | The random quantum comb: from compact localized states to many-body scars | De Tomasi, Giuseppe; Castelnovo, Claudio; Hart, Ollie | In this work we investigate the effects of configurational disorder on the eigenstates and dynamical properties of a tight-binding model on a quasi-one-dimensional comb lattice, consisting of a backbone decorated with linear offshoots of randomly distributed lengths. | Session 111: Thermalization and Chaos |
| 1520 | Pure state equilibration and dynamical correlation functions | Riddell, Jonathon; Alhambra, Álvaro; Garcia-Pintos, Luis | In this talk we aim to shed light on the process of pure state equilibration in a large class of quantum many body systems. | Session 111: Thermalization and Chaos |
| 1521 | Entanglement negativity spectrum of random mixed states: A diagrammatic approach | Shapourian, Hassan; Liu, Shang; Kudler-Flam, Jonah; Vishwanath, Ashvin | In this talk, we discuss how to generalize this setup to random mixed states by coupling the system to a bath and use the partial transpose to study their entanglement properties. | Session 111: Thermalization and Chaos |
| 1522 | Quantum scars as embeddings of weakly "broken" Lie algebra representations | Bull, Kieran; Desaules, Jean-Yves; Papic, Zlatko | We present an interpretation of scar states and quantum revivals as weakly "broken" representations of Lie algebras spanned by a subset of eigenstates of a many-body quantum system. | Session 111: Thermalization and Chaos |
| 1523 | Entanglement of Local Operators and the Butterfly Effect | Tan, Mao Tian; Kudler-Flam, Jonah; Nozaki, Masahiro; Ryu, Shinsei | Entanglement of Local Operators and the Butterfly Effect | Session 111: Thermalization and Chaos |
| 1524 | Orbital-selective correlations and block magnetism in low-dimensional iron-based superconductors | Moreo, Adriana | Using numerical techniques, such as DMRG, multi-orbital Hubbard models were studied at various Hubbard and Hund couplings, and electronic densities. | Session 112: Orbital-Selective Correlations in Iron-Based Superconductors |
| 1525 | Orbital selective superconductivity in iron-based superconductors | Dai, Pengcheng | In this talk, I will summarize our recent inelastic neutron scattering studies of iron-based superconductors, focusing on studying the relationship between magnetism, nematic order, and superconductivity. | Session 112: Orbital-Selective Correlations in Iron-Based Superconductors |
| 1526 | Orbital-selective correlation and nematicity in iron-based superconductors | Yu, Rong | In this talk, I will survey the theoretical developments on this subject, focusing on the orbital-selective Mott physics [3,4] which has been recently extensively studied, and its influence on the electronic bandstructure. | Session 112: Orbital-Selective Correlations in Iron-Based Superconductors |
| 1527 | Nematic Fluctuations in an orbital-selective superconductor Fe1+yTe1-xSex | Chu, Jiun-Haw | In this talk, I will present a systematic study of both B 1g and B 2g nematic fluctuations in Fe 1+yTe 1-xSe x using the technique of elastoresistivity measurement, which showed that the two nematic fluctuations closely track the corresponding spin fluctuations, confirming the intertwined nature of the two degrees of freedom. | Session 112: Orbital-Selective Correlations in Iron-Based Superconductors |
| 1528 | Spin-Orbital-Intertwined Nematic State in FeSe | Wu, Tao | In this talk, I would like to discuss our recent progress on understanding the mechanism of electronic nematicity in FeSe superconductor. | Session 112: Orbital-Selective Correlations in Iron-Based Superconductors |
| 1529 | Extreme topological response in a nonmagnetic Weyl-Kondo semimetal | Buehler-Paschen, Silke | We have recently discovered Weyl semimetal behavior in the noncentrosymmetric material Ce 3Bi 4Pd 3 [3,4], a sister compound of the canonical Kondo insulator Ce 3Bi 4Pt 3, concurrently with the theoretical development of such a Kondo-driven phase [5,6]. | Session 113: Strongly Correlated Topological Metals |
| 1530 | Weyl-Kondo Semimetal — How Strong Correlations Intersect with Electronic Topology | Si, Qimiao | In this talk, I will present these theoretical developments, describe in some detail the interplay between the Kondo interaction and space-group symmetry [3] and, motivated by recent high-field experiments on Ce3Bi4Pd3 [4], the control of the Weyl nodes [5]. | Session 113: Strongly Correlated Topological Metals |
| 1531 | Transport in the Magnetic Weyl Semimetal Y2Ir2O7 | Ramirez, Arthur | We show that an inverse quartic law, as predicted for charged impurity scattering, is consistent with existing data on the rare-earth iridate pyrochlores, R 2Ir 2O 7 as a limiting form. | Session 113: Strongly Correlated Topological Metals |
| 1532 | Spectroscopic studies of candidate topological Kondo insulators and Weyl semimetals | Wirth, Steffen | Using STM, we performed local measurements on well identified, atomically flat, unreconstructed surfaces [2]. | Session 113: Strongly Correlated Topological Metals |
| 1533 | From Trivial Kondo Insulator Ce3Pt3Bi4 to Topological Nodal-line Semimetal Ce3Pd3Bi4 | Cao, Chao; Zhi, Guo-Xiang; Zhu, Jian-Xin | Using the density functional theory combined with dynamical mean-field theory, we have performed systematic study of the electronic structure and its band topology properties of Ce 3Pt 3Bi 4 and Ce 3Pd 3Bi 4. | Session 113: Strongly Correlated Topological Metals |
| 1534 | Z2 Topologically Obstructed Superconducting Order | Sun, Canon; Li, Yi | We propose a class of topological superconductivity in which the pairing order is Z2 topologically obstructed in a time-reversal invariant system in three dimensions. | Session 114: Topological Superconductivity: Theory |
| 1535 | Pairing Obstructions in Topological Superconductors | Schindler, Frank; Bradlyn, Barry; Fischer, Mark; Neupert, Titus | For a proximitized nanowire, I will explain in what sense particle-hole symmetry implies that Cooper pairs are weakly paired in the topological phase. | Session 114: Topological Superconductivity: Theory |
| 1536 | Higher-Order Topological Superconductivity with S-wave Pairing in Twisted Bilayer Graphene | Chew, Aaron; Wang, Yijie; Bernevig, Andrei; Song, Zhida | We demonstrate that introducing s-wave superconductivity into twisted bilayer graphene induces symmetry-protected higher-order topological superconductivity. | Session 114: Topological Superconductivity: Theory |
| 1537 | Odd-frequency Cooper pairing in chiral symmetric systems | Tamura, Shun; Tanaka, Yukio; Hoshino, Shintaro | We study chiral symmetric systems, where the Hamiltonian anticommutes with a chiral operator and the topological number called a winding number can be defined in the bulk. | Session 114: Topological Superconductivity: Theory |
| 1538 | Faithful derivation of symmetry indicators: A case study for topological superconductors with time-reversal and inversion symmetries | Huang, Sheng-Jie; Hsu, Yi-Ting | We propose a protocol for deriving symmetry indicators that depend on a minimal set of necessary symmetry data of the bulk bands and can diagnose boundary features. | Session 114: Topological Superconductivity: Theory |
| 1539 | Multi-orbital superconductivity in 4Hb-TaS2 in the dirty limit: Part I | Day-Roberts, Ezra; Dentelski, David; Birol, Turan; Ruhman, Jonathan; Fernandes, Rafael | In part I of this talk, we present an effective tight binding model based on maximally localized Wannier functions for 4Hb-TaS2. | Session 114: Topological Superconductivity: Theory |
| 1540 | Multi-orbital superconductivity in 4Hb-TaS2 in the dirty limit: Part II | Dentelski, David; Day-Roberts, Ezra; Birol, Turan; Fernandes, Rafael; Ruhman, Jonathan | Based on the DFT calculations and effective tight-binding model introduced in part I, we show how a strong pocket-dependent coupling to magnetic moments arising from the 1T layers naturally forms in this system. | Session 114: Topological Superconductivity: Theory |
| 1541 | Linking structure of centrosymmetric superconductors in 3D momentum space | Kim, Sunje; Yang, Bohm-Jung | We show that doubly charged nodal surfaces of centrosymmetric superconductors in three-dimensions always develop peculiar linking structures with nodal points or lines formed between occupied bands below the Fermi energy. | Session 114: Topological Superconductivity: Theory |
| 1542 | Optical N-invariant of graphene’s viscous Hall fluid | Van Mechelen, Todd; Sun, Wenbo; Jacob, Zubin | Here, we introduce a new topological classification of two-dimensional matter – the optical N-phases. | Session 114: Topological Superconductivity: Theory |
| 1543 | Optically induced topological superconductivity via Floquet interaction engineering | Ghaemi, Pouyan; Dehghani, Hossein; Hafezi, Mohammad | We study the photo-induced superconductivity in a two-valley semiconductor with a massive Dirac type band structure. | Session 114: Topological Superconductivity: Theory |
| 1544 | Driven superconductors with anomalous Floquet higher-order topology | Vu, DinhDuy; Zhang, Ruixing; Yang, Zhicheng | In this work, we classify periodically driven class D superconductors in two dimensions with higher-order topologies that are statically impossible. | Session 114: Topological Superconductivity: Theory |
| 1545 | Z2-enriched symmetry indicators for topological superconductors in the 1651 magnetic space groups | Ono, Seishiro; Po, Hoi Chun; Shiozaki, Ken | Here, we overcome this challenge and report the full computation of the Z 2-enriched symmetry indicators for SCs in all symmetry settings. | Session 114: Topological Superconductivity: Theory |
| 1546 | Topological skyrmion phases of matter | Cook, Ashley | We introduce topological phases of matter defined by skyrmions in the ground state spin—or pseudospin—expectation value textures in the Brillouin zone, the chiral and helical topological skyrmion phases of matter. | Session 114: Topological Superconductivity: Theory |
| 1547 | Non-Bloch band theory in bosonic Bogoliubov-de Gennes systems | Yokomizo, Kazuki; Murakami, Shuichi | In our previous work, we established a non-Bloch band theory in one-dimensional tight-binding non-Hermitian systems [1,2]. | Session 114: Topological Superconductivity: Theory |
| 1548 | Hyperbolic enhancement of photocurrent patterns in minimally twisted bilayer graphene | Sunku, Sai; Halbertal, Dorri; Stauber, Tobias; Chen, Shaowen; McLeod, Alexander; Rikhter, Andrey; Berkowitz, Michael; Lo, Chiu Fan Bowen; Gonzalez-Acevedo, Derick; Hone, James; Dean, Cory; Fogler, Michael; Basov, Dmitri | The observed features become enhanced in a range of mid-infrared frequencies where the hexagonal boron nitride (hBN), which we use as a TBG substrate, is optically hyperbolic. | Session 115: Transport in Graphene Multilayers |
| 1549 | Strange metallic transport above correlated insulating states in twisted bilayer graphene | Cha, Peter; Patel, Aavishkar; Kim, Eun-Ah | In this work, we focus on local tendencies for spontaneous symmetry breaking in the order parameters describing topological correlated insulating states. | Session 115: Transport in Graphene Multilayers |
| 1550 | Transport study of interface effect between WSe2 and magic angle twisted bilayer graphene | Lin, Jiangxiazi; Wang, Zhi; Morissette, Erin; Watanabe, Kenji; Taniguchi, Takashi; Li, Jia | Here we report the influence of the WSe 2 interface on correlated insulators in magic-angle tBLG. | Session 115: Transport in Graphene Multilayers |
| 1551 | Non-linear electron transport in two-dimensional moiré superlattices. | Berdyugin, Alexey; Xin, Na; Bhattacharjee, Shubhadeep; Kumaravadivel, Piranavan; Gao, Haoyang; Slizovskiy, Sergey; Holwill, M; ponomarenko, Leonid; Kim, Minsoo; Bandurin, Denis; Cao, Yang; Watanabe, Kenji; Taniguchi, Takashi; Falko, Vladimir; Levitov, Leonid; Krishna Kumar, Roshan; Geim, Andre | In this work, we take the first steps to understand their behaviour in the non-linear regime. | Session 115: Transport in Graphene Multilayers |
| 1552 | Carbon nanotube-graphene Coulomb drag in the linear and nonlinear transport regimes | Anderson, Laurel; Cheng, Austin; Taniguchi, Takashi; Watanabe, Kenji; Kim, Philip | Carbon nanotube-graphene Coulomb drag in the linear and nonlinear transport regimes | Session 115: Transport in Graphene Multilayers |
| 1553 | Unraveling the ground state of flat-band ABC-stacked trilayer graphene via quantum transport | Winterer, Felix; Geisenhof, Fabian; Weitz, Thomas | Here, we discuss our latest quantum transport data on high-quality dual-gated ABC-stacked trilayer graphene. | Session 115: Transport in Graphene Multilayers |
| 1554 | The impact of domain walls on quantum transport in bilayer graphene | Geisenhof, Fabian; Winterer, Felix; Weitz, Thomas | Here, we present an extensive study on several dual-gated freestanding bilayer graphene devices, giving evidence that domains within a device change its transport properties significantly. | Session 115: Transport in Graphene Multilayers |
| 1555 | Stacking and configuration dependent photocurrent in van der Waals heterostructures | Xiong, Ying; Shi, Likun; Song, Justin | Here we demonstrate stacking and configuration dependent shift photocurrent in van der Waals heterostructures. | Session 115: Transport in Graphene Multilayers |
| 1556 | Charge Density Waves in Twisted Double Bilayer Graphene | Rickhaus, Peter; de Vries, Folkert K.; Zhu, Jihang; Zheng, Giulia; Portolés, Elías; Kurzmann, Annika; Masseroni, Michele; MacDonald, Allan; Ihn, Thomas; Ensslin, Klaus | Here we report the discovery of a new member of the family,[1] density-wave states, in double bilayer graphene [2,3] twisted to 2.37°. | Session 115: Transport in Graphene Multilayers |
| 1557 | Intrinsic crystal fields and electronic polarizabilities of multilayer graphene with and without twist | Tepliakov, Nikita; Wu, QuanSheng; Yazyev, Oleg | We use an original approach combining ab initio calculations and Wannier function formalism to analyze intrinsic crystal fields in multilayer graphene of various stacking configurations. | Session 115: Transport in Graphene Multilayers |
| 1558 | Control of electron-electron interaction in graphene by proximity screening | Kim, Minsoo; Xu, Shuigang; Berdyugin, Alexey; Principi, Alessandro; Slizovskiy, Sergey; Xin, Na; Kumaravadivel, Piranavan; Kuang, Wenjun; Hamer, Matthew; Krishna Kumar, Roshan; Gorbachev, Roman; Watanabe, Kenji; Taniguchi, Takashi; Grigorieva, Irina; Falko, Vladimir; Polini, Marco; Geim, Andre | Driving the electron system in graphene in the hydrodynamic regime, we can quantitatively access e-e scattering length l ee and investigate how screening exerted by such metal gate changes viscous electron flow. | Session 115: Transport in Graphene Multilayers |
| 1559 | Realization of nearly dispersionless bands with strong orbital anisotropy from destructive interference in twisted bilayer MoS2 | Xian, Lede; Claassen, Martin; Kiese, Dominik; Scherer, Michael; Trebst, Simon; Kennes, Dante; Rubio, Angel | Here, we use an ab initio based approach to characterize the electronic properties of twisted bilayer MoS2. | Session 115: Transport in Graphene Multilayers |
| 1560 | Universal Moire Nematic Phase in Twisted Graphitic Systems | Turkel, Simon; Rubio Verdú, Carmen; Song, Larry; Klebl, Lennart; Samajdar, Rhine; Scheurer, Mathias; Venderbos, Jorn; Watanabe, Kenji; Taniguchi, Takashi; Ochoa, Hector; Xian, Lede; Kennes, Dante; Fernandes, Rafael; Rubio, Angel; Narayan, Abhay | Here, we report scanning tunneling microscopy (STM) measurements that reveal the existence of threefold rotational (C3) symmetry breaking in highly uniform twisted double bilayer graphene (tDBG). | Session 115: Transport in Graphene Multilayers |
| 1561 | Van Hove singularities and Lifshitz transitions in magic-angle twisted bilayer graphene | zhang, zhenyuan; Wu, Shuang; Andrei, Eva | As the Fermi level sweeps through the flat bands, we observe that the Fermi surface undergoes a sequence of Lifshitz transitions at integer moiré fillings where discontinuous changes in the Fermi surface topology are accompanied by van Hove singularities (VHS). | Session 115: Transport in Graphene Multilayers |
| 1562 | Predicting Anomalous Quantum Confinement Effect in van der Waals Materials | Tavazza, Francesca; Choudhary, Kamal | In this work, we computationally identify materials with AQCE. | Session 115: Transport in Graphene Multilayers |
| 1563 | NMR Investigation of Ferroquadrupolar Order in TmVO4 | Vinograd, Igor; Wang, Zhipan; Shirer, Kent; Mackenzie, Andrew; Garcia, Daphne; Horvatić, Mladen; Massat, Pierre; Fisher, Ian | NMR Investigation of Ferroquadrupolar Order in TmVO4 | Session 116: Quantum Criticality and Phase Transitions |
| 1564 | Direct determination of Ti-3d1 orbital state in YTiO3 using synchrotron X-ray diffraction | Kitou, Shunsuke; Manjo, Taishun; Katayama, Naoyuki; Shishidou, Tatsuya; Arima, Taka-hisa; Taguchi, Yasujiro; Tokura, Yoshinori; Nakamura, Toshikazu; Yokoyama, Toshihiko; Sugimoto, Kunihisa; Sawa, Hiroshi | In this study, the Ti-3 d orbital state in a perovskite-type oxide YTiO 3 is directly determined by a core differential Fourier synthesis (CDFS) method using synchrotron X-ray diffraction [1]. | Session 116: Quantum Criticality and Phase Transitions |
| 1565 | Reinvestigation of the homogeneous spin model in YbMgGaO4 | Li, Shaozhi | In this talk, I will present the phase diagram of the spin model relevant to YbMgGaO 4. | Session 116: Quantum Criticality and Phase Transitions |
| 1566 | Theory of charge loop current in quasi-one-dimensional systems based on functional renormalization group study | Tazai, Rina; Yamakawa, Youichi; Kondani, Hiroshi | Here, we study spin-fluctuation-driven LC order mechanism based on the functional renormalization group (fRG) theory. | Session 116: Quantum Criticality and Phase Transitions |
| 1567 | Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System | Koch, Robert; Sinclair, Ryan; McDonnell, Marshall; Yu, Runze; Abeykoon, Milinda; Tucker, Matt; Tsvelik, Alexei; Billinge, Simon; Zhou, Haidong; Yin, Weiguo; Bozin, Emil | Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System | Session 116: Quantum Criticality and Phase Transitions |
| 1568 | Two species Wigner lattice state of unconfined electron-positron plasma and application to the theory of ball lighting | Miller, Daniel | Here I report two–species Wigner crystal solution to the equation of state, which is only possible when positive and negative charges have exactly same mass. | Session 116: Quantum Criticality and Phase Transitions |
| 1569 | Transitions between symmetry-protected topological phases from pivoting | Tantivasadakarn, Nathanan; Thorngren, Ryan; Verresen, Ruben; Vishwanath, Ashvin | We introduce a novel mechanism, ‘pivoting’, which aids in the construction of Hamiltonians realizing symmetry-protected topological (SPT) phases in general dimensions. | Session 116: Quantum Criticality and Phase Transitions |
| 1570 | Normal state properties of quantum-critical metals at finite temperatures | Klein, Avraham; Schattner, Yoni; Berg, Erez; Chubukov, Andrey | Recent years have seen an intense effort to study models of fermionic quantum criticality and superconductivity via sign-problem-free quantum Monte Carlo. | Session 116: Quantum Criticality and Phase Transitions |
| 1571 | Infinite critical boson non-Fermi liquid | Zhang, Xiao-Tian; Chen, Gang | We study a novel type of non-Fermi liquid where there exist an infinite number of critical boson modes instead of discrete and finite bosonic modes for the conventional ones. | Session 116: Quantum Criticality and Phase Transitions |
| 1572 | Observation of non-Fermi liquid physics in a quantum critical metal via quantum loop topography | Driskell, George; Lederer, Samuel; Bauer, Carsten; Trebst, Simon; Kim, Eun-Ah | Our study thereby provides an important proof-of-principle example that new physics can be detected via unbiased machine-learning approaches. | Session 116: Quantum Criticality and Phase Transitions |
| 1573 | Emergence of non-Landau quasiparticle at geometric quantum criticality | Song, Hao; Kallin, Catherine; Lee, Sung-Sik | In this paper, we study a geometric quantum phase transition that divides a globally convex Fermi surface from a Fermi surface with locally concave sections in two dimensions. | Session 116: Quantum Criticality and Phase Transitions |
| 1574 | Pulse echo study of the field-tuned nematic quantum phase transition in TmVO4 | Hollister, Patrick; Massat, Pierre; Fisher, Ian; Ramshaw, Brad | Here we explore a model system, TmVO 4, which undergoes a nematic ferroquadrupolar transition driven by the cooperative Jahn-Teller effect. | Session 116: Quantum Criticality and Phase Transitions |
| 1575 | Field-induced phase transitions of symmetry protected topological states in integer spin chains | Feng, Shi; Alvarez, Gonzalo; Trivedi, Nandini | We investigate spin chains with bilinear-biquadratic spin interactions in the gapped symmetry protected topological (SPT) state and at the critical Uimin-Lai-Sutherland (ULS) point as a function of an applied magnetic field. | Session 116: Quantum Criticality and Phase Transitions |
| 1576 | Self-tuned criticality and non-Fermi liquid pairing in a Yukawa-SYK model | Wang, Yuxuan | We present a Sachdev-Ye-Kitaev-like model describing random Yukawa interactions between localized fermions and dynamical bosons in quantum dots. | Session 116: Quantum Criticality and Phase Transitions |
| 1577 | Surface Critical Exponents of the 3D Clean Ising Model and 3D Random Field Ising Model | Simmons, Forrest; Carlson, Erica; Dahmen, Karin | [1-3] Here, we use simulations to calculate the critical exponents at a free surface of the 3-dimensional Clean Ising Model and of the 3-dimensional Random Field Ising Model. | Session 116: Quantum Criticality and Phase Transitions |
| 1578 | Spectroscopic Evidence for the Direct Involvement of Local Moments in the Pairing Process of the Heavy-Fermion Superconductor CeCoIn5 | Shrestha, Keshav; Zhang, Shengzhi; Greene, Laura H; Lai, You; Baumbach, Ryan; Sasmal, Kalyan; Maple, M Brian; Park, Wan Kyu | We will discuss the underlying microscopic mechanism in terms of a proposed theoretical model [2]. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1579 | Superconductor Energy-Gap Symmetry Determination using Multi-Atom Quasiparticle Interference Imaging | Sharma, Rahul; Kreisel, Andreas; Sulangi, Miguel; Böker, Jakob; Kostin, Andrey; Allan, Milan; Eisaki, Hiroshi; Boehmer, Anna; Canfield, Paul C.; Eremin, Ilya; Davis, James; Hirschfeld, Peter; Sprau, Peter | We introduce a generalized technique which can be used with multiple impurities. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1580 | Atomic-Scale Visualization of the Cooper-Pair Density Wave State in NbSe2 | Liu, Xiaolong; Chong, Yi Xue; Sharma, Rahul; Davis, J.C. Séamus | Using atomic-resolution scanned Josephson-tunneling microscopy, we visualize the electron-pair density and discover a PDW state in the canonical TMD superconductor NbSe 2. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1581 | A strongly inhomogeneous superfluid in an iron-based superconductor | Cho, Doohee; Bastiaans, Koen; Chatzopoulos, Damianos; Gu, Genda; Allan, Milan | Here we will present our JSTM results on FeTe 0 .55Se 0 .45 acquired with a Pb-coated tip [1]. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1582 | Visualizing the Cuprate Pair Density Wave State | Du, Zengyi; Li, Hui; Joo, Sanghyun; Donoway, Elizabeth; Lee, Jinho; Davis, James; Gu, Genda; Johnson, Peter; Fujita, Kazuhiro | In this talk, we will present a canonical signature of the PDW states in the cuprate. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1583 | Local electronic structure of highly doped cuprate superconductors | Tromp, Willem; Battisti, Irene; Bastiaans, Koen; Chatzopoulos, Damianos; Smit, Steef; Huang, Yingkai; Van Heumen, Erik; Golden, Mark; Allan, Milan | In this talk, I will discuss the implications of our data for the overdoped cuprates. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1584 | Imaging doubled shot noise in a Josephson scanning tunneling microscope | Bastiaans, Koen; Cho, Doohee; Chatzopoulos, Damianos; Leeuwenhoek, Maarten; Koks, Corne; Allan, Milan | In this talk I will show how we have imaged the current noise with atomic resolution in a Josephson scanning tunneling microscope [1]. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1585 | Tunneling dynamics between superconducting bound states at the atomic limit | Huang, Haonan; Padurariu, Ciprian; Senkpiel, Jacob; Drost, Robert; Levy Yeyati, Alfredo; Cuevas, Juan Carlos; Kubala, Björn; Ankerhold, Joachim; Kern, Klaus; Ast, Christian | By varying the conductance and tracing the evolution of the intensity of such peaks, we demonstrate a transition from sequential tunneling to emergent coherent tunneling from which we can extract the lifetime of YSR states directly. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1586 | Giant anisotropic magneto-resistance in an Ising superconductor-ferromagnetic insulator tunnel junction | Kang, Kaifei; Jiang, Shengwei; Berger, Helmuth; Forro, Laszlo; Watanabe, Kenji; Taniguchi, Takashi; Shan, Jie; Mak, Kin Fai | We will discuss the observation of giant anisotropic magneto-resistance (AMR) up to ~ 100% in an Ising superconductor-ferromagnetic insulator planar tunnel junction formed by 2D NbSe 2 and CrBr<span style="font-size:10.8333px">3</span>. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1587 | Particle-Hole Asymmetry of Subgap Conductances in Superconductors Without Quasiparticle Poisoning | Setiawan, Fnu; Sau, Jay | Here, we provide a generic mechanism for the PHS breaking without involving QP, namely the coupling of the subgap states to bosonic modes. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1588 | Visualizing the unusual spectral weight shift in DyBa2Cu3O7-δ thin film | Li, Hui; Du, Zengyi; Wu, Zebin; Putzky, Daniel; Kundu, Asish; Yang, Shize; Joo, Sanghyun; Lee, Jinho; Zhu, Yimei; Logvenov, Gennady; Keimer, Bernhard; Fujita, Kazuhiro; Valla, Tonica; Bozovic, Ivan; Drozdov, Ilya | In this talk, we will discuss these unusual phenomena and possible implications. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1589 | Theory of tunnelling conductance of d+ip-wave superconductor | Tanaka, Yukio; Takabatake, Yuhi; Suzuki, Shu-Ichiro | We theoretically study the tunneling conductance of the d+ip-wave superconductor based on the quasiclassical Eilenberger theory. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1590 | Nonequilibrium interplay between Andreev bound states and Kondo effect | He, Jiangbo; Pan, Dong; Yang, Guang; Liu, Mingli; Ying, Jianghua; Lyu, Zhaozheng; Fan, Jie; Jing, Xiunian; Liu, Guangtong; Lu, Bo; Liu, Dong E; Zhao, Jianhua; Lu, Li; Qu, Fanming | We investigated an InAsSb quantum dot coupled to two superconductors to explore the nonequilibrium dynamics of ABSs and their interplay with Kondo effect. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1591 | Periodicity transition of Coulomb oscillation in hybrid superconductor-semiconductor (Pb-InSb) system | Shi, Jiayu | We observed an even-odd split at finite bias voltage, indicating the hard superconducting gap. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1592 | Measurement of Heavy-Fermion Cooper Pair Symmetry from Multi-Atom Quasiparticle Interference in CeCoIn5 | Chen, Weijiong; Sharma, Rahul; Wang, Shuqiu; Kreisel, Andreas; Petrovic, Cedomir; Chuang, Tien-Ming; Allan, Milan P.; Hirschfeld, Peter; Davis, James | Here we introduce MAHAEM for heavy fermion superconductor CeCoIn 5. | Session 117: Superconductivity: Tunneling Phenomena (single particle tunneling and STM) |
| 1593 | Correlated insulators and skyrmion superconductivity in magic angle twisted bilayer graphene | Khalaf, Eslam | I will discuss the nature of these correlated insulators and how they give rise to superconductivity upon doping. | Session 118: New Frontiers in Magic Angle Graphene and Moire Materials |
| 1594 | Moiré Magic 3.0 | Jarillo-Herrero, Pablo | In this talk I will present a new moiré superconductor, mirror symmetric magic-angle twisted trilayer graphene (MATTG) with dramatically richer tunability in electronic structure and superconducting properties. | Session 118: New Frontiers in Magic Angle Graphene and Moire Materials |
| 1595 | Flat Bands and Correlated Electronic States in Two Dimensional Atomic Crystals | Andrei, Eva | This talk will highlight two examples where the electronic ground state and Fermi surface topology depend sensitively on the filling of the flat bands: twisted graphene bilayers that develop a flat band at a magic twist-angle [1,2,3], and buckled graphene layers in which a strain-induced periodically modulated pseudo-magnetic field creates a post-graphene material with flat electronic bands [4]. | Session 118: New Frontiers in Magic Angle Graphene and Moire Materials |
| 1596 | Moiré Magic | MacDonald, Allan; Xie, Ming; Zhu, Jihang; Qin, Wei; Potasz, Pawel; Kumar, Ajesh | My talk will focus on the particular case of graphene bilayers, which exhibit a rich set of strongly correlated electron states, including superconductors and orbital magnets, when twisted close to a magic relative orientation angle at which the electron velocity at the Fermi level vanishes. | Session 118: New Frontiers in Magic Angle Graphene and Moire Materials |
| 1597 | Correlated insulating states in semiconductor moiré superlattices | Shan, Jie | In this talk I will discuss recent experiments on transition metal dichalcogenide moiré systems, which exhibit a series of correlated insulating states from strong electronic correlation. | Session 118: New Frontiers in Magic Angle Graphene and Moire Materials |
| 1598 | Moiré band topology in twisted bilayer graphene | Ma, Chao; Wang, Qiyue; Mills, Scott; Chen, Xiaolong; Deng, Bingchen; Yuan, Shaofan; Li, Cheng; Watanabe, Kenji; Taniguchi, Takashi; Du, Xu; Zhang, Fan; Xia, Fengnian | In this work, we performed a systematic nonlocal transport study and revealed the nontrivial moiré band topology in t-BLG. | Session 119: Topology in Graphene |
| 1599 | Nodal Structure of Chiral Twisted Bilayer Graphene Model and Implications for Higher Magic Angles | Wang, Jie; Zheng, Yunqin; Millis, Andrew; Cano, Jennifer | This talk presents a mathematical and numerical analysis of the flatband wavefunctions occurring in the chiral model of twisted bilayer graphene at the "magic" twist angles. | Session 119: Topology in Graphene |
| 1600 | Correlated and topological states in twisted graphene multilayers | He, Minhao; Li, Yuhao; Zhang, Yahui; Cai, Jiaqi; Liu, Yang; Fei, Zaiyao; Watanabe, Kenji; Taniguchi, Takashi; Cobden, David; Xu, Xiaodong; Yankowitz, Matthew | Here, we report electrical transport measurements of twisted monolayer-bilayer graphene (tMBG) and twisted double bilayer graphene (tDBG) over a small range of twist angles around 1°. | Session 119: Topology in Graphene |
| 1601 | Landau Levels as a Probe for Band Topology in Graphene Moiré Superlattices | Wu, QuanSheng; Liu, Jianpeng; Guan, Yifei; Yazyev, Oleg | In this work, we will show that Landau levels are a good probe for the topological character of electronic bands in two-dimensional moiré superlattices. | Session 119: Topology in Graphene |
| 1602 | Moiré Superlattices at Fractional Band Fillings: Emergent Fermi Liquids and Fractional Chern Insulators | Abouelkomsan, Ahmed; Liu, Zhao; Bergholtz, Emil | We consider the core problem of Coulomb interactions within fractionally filled Moiré flat bands and demonstrate that the dual description in terms of holes, which acquire a non-trivial hole-dispersion, provides key physical intuition and enables the use of standard perturbative techniques for this strongly correlated problem. | Session 119: Topology in Graphene |
| 1603 | Spectroscopy of Correlation-enabled Chern Insulators in Magic-Angle Twisted Bilayer Graphene | Choi, Youngjoon; Kim, Hyunjin; Peng, Yang; Thomson, Alex; Lewandowski, Cyprian; Watanabe, Kenji; Taniguchi, Takashi; Alicea, Jason; Nadj-Perge, Stevan | We identify Chern numbers of these topological phases using a novel spectroscopic technique hinging on scanning tunneling microscopy (STM) that enables us to reconstruct a local, spatially dependent, Landau fan diagram. | Session 119: Topology in Graphene |
| 1604 | Dirac Magic Angles and Topological Floquet Flat Bands in Twisted Multilayer graphene | Li, Yantao; Eaton, Adam; Seradjeh, Babak; Fertig, Herb | We characterize the energy and quasienergy (Floquet) bands in various twisted multilayer graphene structures. | Session 119: Topology in Graphene |
| 1605 | Electrically tunable correlated and topological states in twisted monolayer–bilayer graphene | Chen, Shaowen; He, Minhao; Zhang, Yahui; Hsieh, Valerie; Fei, Zaiyao; Watanabe, Kenji; Taniguchi, Takashi; Cobden, David; Xu, Xiaodong; Dean, Cory; Yankowitz, Matthew | I will report that the system of twisted monolayer–bilayer graphene (tMBG) hosts a variety of correlated metallic and insulating states, as well as topological magnetic states. | Session 119: Topology in Graphene |
| 1606 | A local compressibility study of magic angle twisted bilayer graphene, Part 1 | Pierce, Andrew; Xie, Yonglong; Park, Jeong Min; Lee, Seung Hwan; Cao, Yuan; Forrester, Patrick; Khalaf, Eslam; Taniguchi, Takashi; Watanabe, Kenji; Vishwanath, Ashvin; Jarillo-Herrero, Pablo; Yacoby, Amir | Here, we report high-resolution local compressibility measurements of MATBG using a scanning single-electron transistor. | Session 119: Topology in Graphene |
| 1607 | A local compressibility study of magic-angle twisted bilayer graphene, Part 2 | Xie, Yonglong; Pierce, Andrew; Park, Jeong Min; Lee, Seung Hwan; Cao, Yuan; Forrester, Patrick; Khalaf, Eslam; Taniguchi, Takashi; Watanabe, Kenji; Vishwanath, Ashvin; Jarillo-Herrero, Pablo; Yacoby, Amir | In this talk, we will present local compressibility measurements which provide evidence for such transitions. | Session 119: Topology in Graphene |
| 1608 | Spectroscopy of a Tunable Moiré System with a Correlated and Topological Flat Band | Chiu, Cheng Li; Liu, Xiaomeng; Lee, Jong Yeon; Farahi, Gelareh; Watanabe, Kenji; Taniguchi, Takashi; Vishwanath, Ashvin; Yazdani, Ali | Here we report the STM study of TDBG[1]. | Session 119: Topology in Graphene |
| 1609 | Probing orbital Chern ferromagnet phase in twisted bilayer graphene | Tschirhart, Charles; Serlin, Marec; Polshyn, Hryhoriy; Shragai, Avi; Xia, Zhengchao; Zhu, Jiacheng; Zhang, Yuxuan; Watanabe, Kenji; Taniguchi, Takashi; Huber, Martin; Young, Andrea | I will present transport data and scanning probe magnetometry data acquired using a nanoSQUID-on-tip microscope. | Session 119: Topology in Graphene |
| 1610 | Topological charge pumping in twisted bilayer graphene | Zhang, Yinhan; Gao, Yang; Xiao, Di | We show that a sliding motion between the two layers of a \moire superlattice induces an electric current and realizes a two-dimensional version of the topological Thouless pump when the Fermi energy lies in one of the minigaps. | Session 119: Topology in Graphene |
| 1611 | Strongly Correlated Chern Insulators in Magic-Angle Twisted Bilayer Graphene | Nuckolls, Kevin; Oh, Myungchul; Wong, Dillon; Lian, Biao; Watanabe, Kenji; Taniguchi, Takashi; Bernevig, Andrei; Yazdani, Ali | I will describe the use of a novel local spectroscopic technique using a scanning tunneling microscope (STM) to detect a sequence of topological insulators in MATBG with Chern numbers C = ±1, ±2, ±3 near v = ±3, ±2, ±1 electrons per moiré unit cell respectively, which are stabilized by modest magnetic fields [1]. | Session 119: Topology in Graphene |
| 1612 | Excitation spectra of quantum matter without quasiparticles I: Sachdev-Ye-Kitaev models | Tikhanovskaya, Maria; Guo, Haoyu; Sachdev, Subir; Tarnopolsky, Grigory | We study the low frequency spectra of complex Sachdev-Ye-Kitaev (SYK) models at general densities.The analysis applies also to SU(M) magnets with random exchange at large M. | Session 120: SYK and Quantum Circuit Models |
| 1613 | Deconfined metallic criticality and Sachdev-Ye-Kitaev physics of spin-1/2 electrons at finite doping | Dumitrescu, Philipp; Wentzell, Nils; Parcollet, Olivier; Georges, Antoine | We establish the phase diagram of doped spin-1/2 electrons on a fully connected lattice with random hopping, that are interacting through a random Heisenberg spin exchange as well as finite onsite Hubbard repulsion. | Session 120: SYK and Quantum Circuit Models |
| 1614 | Sachdev-Ye-Kitaev superconductivity: Quantum Kuramoto and generalized Richardson models | Wang, Hanteng; Chudnovskiy, Alexander; Gorsky, Alexander; Kamenev, Alex | We present exact diagonalization studies, along with analytic solutions of the aforementioned limiting cases. | Session 120: SYK and Quantum Circuit Models |
| 1615 | Dirac fast scrambers | Kim, Jaewon; Altman, Ehud; Cao, Xiangyu | We introduce a family of Gross-Neveu-Yukawa models with a large number of fermion and boson flavors as higher dimensional generalizations of the Sachdev-Ye-Kitaev model. | Session 120: SYK and Quantum Circuit Models |
| 1616 | SYK criticality and spin glass order in the random doped Heisenberg model | Wietek, Alexander; Shackleton, Henry; Georges, Antoine; Sachdev, Subir | We investigate the t-J model of electrons with fully connected random hoppings and exchange interactions. | Session 120: SYK and Quantum Circuit Models |
| 1617 | Novel phases of quantum circuits protected by hidden dynamical symmetries | Bao, Yimu; Choi, Soonwon; Altman, Ehud | We argue that many more phases are possible. | Session 120: SYK and Quantum Circuit Models |
| 1618 | Algorithmic cooling for holographic quantum circuits | Anikeeva, Galit; Hayden, Patrick; Kim, Isaac | In this paper, we propose a protocol that can unitarily reset the qubits, thus dramatically reducing the requisite spatial cost to implement the contraction algorithm on general near-term quantum computers. | Session 120: SYK and Quantum Circuit Models |
| 1619 | Criticality and entanglement in non-unitary quantum circuits and tensor networks of non-interacting fermions | Jian, Chao-Ming; Bauer, Bela; Keselman, Anna; Ludwig, Andreas | We show that in the case of non-interacting fermions, there is a further correspondence between non-unitary circuits in d spatial dimensions and non-interacting fermion problems with static Hamiltonians in (d+1) spatial dimensions. | Session 120: SYK and Quantum Circuit Models |
| 1620 | Emergent Lie Algebra and Quantum information dynamics in Brownian SYK models | Agarwal, Lakshya; Xu, Shenglong | We study the out-of-time ordered correlator of generic chaotic systems with charge conservation, using the Brownian SYK models as examples. | Session 120: SYK and Quantum Circuit Models |
| 1621 | Super-Poissonian behavior of the energy specrum in the non-ergodic extended regime | Berkovits, Richard | We show that by using the singular value decomposition method, clear evidence for a super-Poissonian behavior in this regime emerges, for the Rosenzweig-Porter model as well as for anisotopic spin chains in the many-particle delocalized regime. | Session 120: SYK and Quantum Circuit Models |
| 1622 | Excitation spectra of quantum matter without quasiparticles II: random t-J model | Tikhanovskaya, Maria; Guo, Haoyu; Sachdev, Subir; Tarnopolsky, Grigory | We study the low frequency spectrum of the deconfined critical state of t-J model with random exchange. | Session 120: SYK and Quantum Circuit Models |
| 1623 | Spontaneous Breaking of U(1) Symmetry in Coupled Complex Sachdev-Ye-Kitaev Models | Klebanov, Igor; Milekhin, Alexey; Tarnopolsky, Grigory; Zhao, Wenli | We study two copies of the complex SYK model coupled by a quartic term preserving the U (1) × U (1) symmetry. | Session 120: SYK and Quantum Circuit Models |
| 1624 | Imbalanced coupled Sachdev-Ye-Kitaev model | Sahoo, Sharmistha; Haenel, Rafael; Hsieh, Timothy; Franz, Marcel | In this talk, I will discuss a one-parameter variant of the Maldacena-Qi model that consists of two SYK systems with different strengths of interaction. | Session 120: SYK and Quantum Circuit Models |
| 1625 | Simulating quantum transport and localization using a superconducting quantum processor | Karamlou, Amir; Braumueller, Jochen; Kannan, Bharath; Kim, David; Kjaergaard, Morten; Melville, Alexander; Niedzielski, Bethany; Sung, Youngkyu; Vepsäläinen, Antti; Winik, Roni; Yanay, Yariv; Yoder, Jonilyn; Tahan, Charles; Orlando, Terry; Gustavsson, Simon; Oliver, William | Simulating quantum transport and localization using a superconducting quantum processor | Session 120: SYK and Quantum Circuit Models |
| 1626 | Information propagation and recovery in a many-body quantum system | Braumueller, Jochen; Karamlou, Amir; Yanay, Yariv; Kannan, Bharath; Kim, David; Kjaergaard, Morten; Melville, Alexander; Niedzielski, Bethany; Sung, Youngkyu; Vepsalainen, Antti; Winik, Roni; Yoder, Jonilyn; Orlando, Terry; Gustavsson, Simon; Tahan, Charles; Oliver, William | We expose these dynamics with an array of strongly coupled superconducting qubits in 1d and 2d, and we experimentally observe the propagation of information in this many-body quantum system by measuring the relevant out-of-time-ordered correlators. | Session 120: SYK and Quantum Circuit Models |
| 1627 | High throughput search for polaronic materials | Melo, Pedro; Abreu, Joao Carlos; Guster, Bogdan; Giantomassi, Matteo; Gonze, Xavier; Verstraete, Matthieu | Over the past 10 years, immense progress has been made in the ab initio calculation of electron-phonon coupling and its consequences, in particular through improvements on the Allen Heine Cardona theory and exploiting the Frohlich model with its coupling constant "alpha". | Session 121: Tools for 2D Science |
| 1628 | High-throughput searches for novel 2D and 1D materials | Campi, Davide; Mounet, Nicolas; Gibertini, Marco; Marrazzo, Antimo; Sohier, Thibault; Pizzi, Giovanni; Marzari, Nicola | In a previous study [1] we performed an extensive high-throughput screening of experimentally known inorganic materials, identifying more than 1800 compounds exfoliable into novel two-dimensional monolayers. | Session 121: Tools for 2D Science |
| 1629 | Discovering new materials with the AiiDAlab platform: examples from a combined computational/experimental research laboratory | Yakutovich, Aliaksandr V.; Eimre, Kristjan; Schütt, Ole; Talirz, Leopold; Adorf, Carl S.; Andersen, Casper W.; Ditler, Edward; Du, Dou; Passerone, Daniele; Smit, Berend; Marzari, Nicola; Pizzi, Giovanni; Pignedoli, Carlo Antonio | I will show examples[3,4] from our laboratory at Empa where cooperation between experiment and simulation in the discovery of new materials is boosted by the AiiDAlab applications. | Session 121: Tools for 2D Science |
| 1630 | Generating a FAIR crystal-structure database with the AiiDA informatics infrastructure | Huber, Sebastiaan; Bercx, Marnik; Hörmann, Nicolas; Pizzi, Giovanni; Marzari, Nicola | We present our protocols and their validation, together with the use of AiiDA’s advanced automation and error handling features to create robust workflows for electronic-structure simulations. | Session 121: Tools for 2D Science |
| 1631 | Capturing the full momentum dependency in diagrammatic calculations | João, Simão; Ferreira, Aires; Viana Parente Lopes, João | Here, we present an exact method to capture the momentum dependency due to disorder in the disorder-averaged Green’s function, effectively summing a larger subset of diagrams. | Session 121: Tools for 2D Science |
| 1632 | MechElastic: A Python Library for Analysis of Mechanical and Elastic Properties | Singh, Sobhit; Lang, Logan; Dovale-Farelo, Viviana; Herath, Uthpala; Tavadze, Pedram; Coudert, Francois-Xavier; Romero, Aldo | In this work, we present a friendly open-source python library to carry out the analysis of elastic properties of materials. | Session 121: Tools for 2D Science |
| 1633 | Two- and three-body tight-binding model for efficient materials design | Garrity, Kevin; Choudhary, Kamal | In this talk, we detail our efforts to fit a self-consistent tight-binding model, including both two-body and three-body interaction terms, to a large dataset of DFT calculations that includes elements from across the periodic table. | Session 121: Tools for 2D Science |
| 1634 | Structure prediction of ionic materials using the Minima Hopping method and the CENT machine learning potential | Goedecker, Stefan A; Tahmasbi, Hossein; Khajehpasha, Ehsan; Rostami, Samare; Asnaashari, Hossein; Faraji, Somayeh; Amsler, Maximilian; Ghasemi, S. Alireza | We will present novel structures for TiO2 sheets, bulk and surfaces of CaF2, stoichiometric and non-stoichiometric phases of MgO, as well as crystalline structures of SrTiO3 and LiCl. | Session 121: Tools for 2D Science |
| 1635 | Finger prints based biasing for finding complex reaction pathways | De, Deb; Krummenacher, Marco; Goedecker, Stefan A | The penalty function we propose is universal and can be applied to any reaction or transformation. | Session 121: Tools for 2D Science |
| 1636 | Automated in silico optimisation of nanoporous material morphology for enhanced carbon dioxide adsorption | Ferreira, Rodrigo; Martelli, Fausto; Luan, Binquan; Elengikal, Tonia; Gupta, Anshul; Cong, Guojing; Steiner, Mathias; Peters, Thomas; Siperstein, Flor; O Conchuir, Breanndan | In this talk, we present our work which optimises the classification mechanisms for characterizing nanopore structures, enabling efficient high throughput nanopore screening. | Session 121: Tools for 2D Science |
| 1637 | Measurement of sub pm/V in-plane piezo-coupling coefficients using lateral PFM | Yarajena, Sai Saraswathi; Naik, Akshay | We propose a technique to quantitatively measure the in-plane piezoelectric coupling for 2D materials. | Session 121: Tools for 2D Science |
| 1638 | Improved method for measuring crystal orientation of strained graphene using polarization dependence of Raman G band and 2D bands | Tomori, Hikari; Nakamura, Kazushi; Kanda, Akinobu | In this study, we developed a method to obtain both the strain direction and the polarizer angle simultaneously from the polarized Raman spectroscopy of the G and 2D bands. | Session 121: Tools for 2D Science |
| 1639 | Genarris 2.0: A Random Structure Generator for Molecular Crystals | Tom, Rithwik; Rose, Tim; Bier, Imanuel; O’Brien, Harriet; Vazquez-Mayagoitia, Alvaro; Marom, Noa | Here we present a new version of the code, containing several major improvements. | Session 121: Tools for 2D Science |
| 1640 | Space group predictions in inverse materials search | XI, BIN; Tse, Kinfai; Kok, Tsz Fung; Zhu, Junyi | In this work, we proposed a machine-learning-assisted approach to enhance the material search speed. | Session 121: Tools for 2D Science |
| 1641 | Particle transmutations in flat-band lattices: bosons to fermions, fermions to composite fermions. | Maiti, Saurabh; Sedrakyan, Tigran | In this talk, we will draw our attention to the consequences of one particular scheme that is designed to be applicable for various interesting 2D lattices. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1642 | Isolation of Flat Band | Bae, Jun Hyung; Sedrakyan, Tigran; Maiti, Saurabh | In this presentation, we explore further means to lift the degeneracy while preserving the flat band. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1643 | Optical lattice platform for the SYK model | Wei, Chenan; Sedrakyan, Tigran | The Sachdev-Ye-Kitaev (SYK) model and its modifications have recently drawn broad theoretical interests due to their possibility to understand the non-Fermi liquid properties, maximally chaotic behavior, and holographic duality. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1644 | Fock space localization in the Sachdev-Ye-Kitaev model | Monteiro, Felipe; Micklitz, Tobias; Tezuka, Masaki; Altland, Alexander | We study the physics of many body localization in the Majorana Sachdev-Ye-Kitaev (SYK) model perturbed by a one-body Hamiltonian. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1645 | Anyonic vortex states of 3D interacting Bose systems | Sedrakyan, Tigran | We formulate and study a generalization of the Chern-Simons transformation in interacting Bose systems to three-dimensional space (3D). | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1646 | Topological edge plasmons in graphene’s viscous Hall fluid | Sun, Wenbo; Van Mechelen, Todd; Boddeti, Ashwin; Tepole, Adrian; Alaeian, Hadiseh; Jacob, Zubin | Here, we propose an ultra-subwavelength topological circulator (three-port non-reciprocal device) for THz region based on the unidirectional edge mode. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1647 | Realizing a symmetry-protected topological phase in the antiferromagnetic spin-1/2 Hubbard ladder | Hirthe, Sarah; Sompet, Pimonpan; Bourgund, Dominik; Chalopin, Thomas; Koepsell, Joannis; Bojović, Petar; Salomon, Guillaume; Bibo, Julian; Pollmann, Frank; Hilker, Timon; Gross, Christian; Bloch, Immanuel | Harnessing the full spin and density resolution of our Fermi-gas microscope, we detect a finite non-local string correlator in the bulk and localized spin-1/2 states at the edges. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1648 | Using multiple quantum coherences to diagnose equilibrium quantum phase transitions via out-of-time-ordered correlators without time reversal | Muleady, Sean; Lewis-Swan, Robert; Rey, Ana Maria | Here, we propose a new dynamical method to connect equilibrium QPTs and quantum coherence via out-of-time-ordered correlators (OTOCs) [1]. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1649 | Multicritical deconfined quantum-criticality and Lifshitz point of a helical valence-bond phase | Zhao, Bowen; Takahashi, Jun; Sandvik, Anders | In this talk, we will discuss two deformations of S = 1/2 square-lattice J-Q model, which hosts deconfined quantum phase transition between antiferromagnetic and dimerized (valence-bond solid) ground states [1]. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1650 | Quantum criticality in Heisenberg chains and ladders with long range antiferromagnetic interactions | Yang, Luhang; Weinberg, Phillip; Feiguin, Adrian | In order to circumvent the Mermin-Wagner theorem and realize true spontaneous symmetry breaking in 1D and quasi-1D spin systems, we include RKKY-like long-range antiferromagnetic (AFM) interactions to effectively increase their dimensionality. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1651 | Quantum magnet with a helical bond order adjacent to deconfined quantum criticality | Takahashi, Jun; Zhao, Bowen; Sandvik, Anders | We will introduce methods to characterize the helical phase, e.g., diagonal cylinder boundary conditions to control topological effects, and investigate the possibility of (in-)commensurate transitions within the phase. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1652 | Gapless quantum spin liquid and global phase diagram of the spin-1/2 J1-J2 square antiferromagnetic Heisenberg model | Liu, Wen-Yuan; Gong, Shoushu; Li, Yu-Bin; Poilblanc, Didier; Chen, Wei-Qiang; Gu, Zhengcheng | We use the state-of-the-art tensor network state method, specifically, the finite projected entangled pair state (PEPS) algorithm , to simulate the global phase diagram of spin-1/2 J1-J2 Heisenberg model on square lattices up to 24 × 24. | Session 122: Precision Many-Body Physics: Gauge Fields, Topology, and Fractionalization |
| 1653 | Work Function Studies of Carbon Nanospikes by XPS and UPS | Baddorf, Arthur; Rondinone, Adam; Hensley, Dale | We have identified the composition of nanospike surfaces with x-ray photoelectron spectroscopy (XPS) and their absolute work function using ultraviolet photoemission spectroscopy (UPS). | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1654 | Investigation of Low-Energy H and He Implanted 4H-SiC using X-Ray and Neutron Reflectivity | Vaninger, Mitchel; Mazza, Alessandro; Ward, Thomas; Kaiser, Helmut; Heitmann, Thomas; Schaefer, Katherine; King, Gavin; Conrad, Edward; Miceli, Paul | Our results indicate that these implanted light ions do not form gas bubbles below the surface of SiC and we discuss how these combined AFM and reflectivity measurements provide insight on the interaction of the light ions with SiC. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1655 | Atomic Resolution from Friction Force Microscopy Using the Jarzynski Equality | Watanabe, Yasmin; Simão, Renata; Capaz, Rodrigo | In the present work, we explore the possibility of achieving atomic resolution using Friction Force Microscopy (FFM). | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1656 | Challenges for integrating first principles theory and X-ray reflectivity measurements to predict interfacial structure | Letchworth-Weaver, Kendra; Harmon, Katherine; Cheung, Nicholas; Chan, Maria; Galli, Giulia; Fong, Dillon; Fenter, Paul | Using the Al 2O 3/water interface and the SrTiO 3 surface during epitaxial growth as illustrative examples, this presentation explores the challenges and successes of such a combined approach. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1657 | Deep Learning Enhanced STM: Recognizing the Herringbone Surface Reconstruction and Atomic Lattice of Au(111) | Smalley, Darian; Thompson, Jesse; Thomas, John; Weber-Bargioni, Alexander; Ishigami, Masa | Here we present a deep learning approach using a convolutional neural network (CNN) to recognize certain features in STM images of Au(111) to automatically identify tips which are suitable for high resolution imaging. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1658 | Spectroscopic Characterization and Molecular Dynamics Simulation of Tin Dioxide | Alghamdi, Hawazin; Chowdhury, Sugata; Misra, Prabhakar | We have demonstrated a red-shift in the Raman spectra as the temperature increases for both A 1g (634 cm -1) and B 2g (775 cm -1) modes, while the E g (475 cm -1) mode exhibited no change. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1659 | The adsorption of oxygen on bimetallic Pd3M2 clusters (M= Ag, Au, Co, Cu, Mn, Ni, Pt and Ru) with and without alumina support by Density Functional Theory | Zaman, Nusaiba; Lau, Kah Chun; Kara, Abdelkader | We use density functional theory to systematically investigate the adsorption of oxygen on the bimetallic Pd 3M 2 clusters (M = Ag, Au, Co, Cu, Mn, Ni, Pt, and Ru) with and without supported alumina. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1660 | Titanium monoxide (TiO): an exceptional member of 3d transition-metal monoxides | Li, Fengmiao; Zou, Yuting; Han, Myung-Geun; Foyevtsova, Kateryna; Shin, Hyungki; Lee, Sangjae; Liu, Chong; Shin, Kidae; Albright, Stephen; Sutarto, Ronny; He, Feizhou; Davidson, Bruce; Walker, Frederick; Zhu, Yimei; Cheng, Zhigang; Elfimov, Ilya; Sawatzky, George; Zou, Ke | We report the successful growth of single-crystalline TiO(001) film using molecular beam epitaxy. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1661 | Thermodynamic and optoelectronic properties of ultra-thin-film crystalline and amorphous selenium from a first-principles investigation | Barman, Sajib; Huda, Muhammad; Asaadi, Jonathan; Gramellini, Elena; Nygren, David | We present our density functional theory (DFT) based investigations for both c-Se and a-Se, focusing on the thermodynamic and optoelectronic properties in this work. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1662 | Tip-enhanced Photoluminescence of Freestanding Lateral Heterostructures | Albagami, Abdallah; Ambardar, Sharad; Voronine, Dmitri | We investigated the photoluminescence (PL) signals of freestanding lateral WSe 2-MoSe 2 heterostructures transferred from a Si/SiO 2 substrate onto a TEM copper grid under the influence of strain exerted by a scanning probe microscope (SPM) gold-coated plasmonic tip. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1663 | The quantum physical reality of polar-nonpolar oxide heterostructures | Kouser, Summayya; Pantelides, Sokrates | Here we report comprehensive DFT calculations that unveil a very different purely quantum physical reality. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1664 | Ammonia formation on hexagonal Molybdenum Nitride by Langmuir−Hinshelwood Mechanism: a DFT study | Sajid, Muhammad; Kaden, William; Kara, Abdelkader | Using Density Functional Theory (DFT), we studied the reaction steps involved in the production of Ammonia in Langmuir− Hinshelwood Mechanism. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1665 | Confined Polymer Between Rough Silica Surfaces: An Atomistic Simulation Study | Bacova, Petra; Li, Wei; Jana, Pritam; Burkhart, Craig; Polinska, Patrycja; Doxastakis, Manolis; Mueller, Marcus; Harmandaris, Vagelis | We use atomistic molecular dynamics simulations to get an insight on the behavior of polybutadiene and polyisoprene films, confined between realistic amorphous silica surfaces. | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1666 | Chemical-state specific atomic mapping of MoOx catalyst on α-TiO2(110) using X-ray standing wave excited XPS | Das, Anusheela; Chen, Yanna; Choudhury, Devika; Jones, Leighton; Keane, Denis; Mane, Anil; Elam, Jeffrey; Schatz, George; Bedzyk, Michael | Chemical-state specific atomic mapping of MoOx catalyst on α-TiO2(110) using X-ray standing wave excited XPS | Session 123: Surface Electronic Structure, Dynamics, and Reactivity |
| 1667 | Ultrafast optical control of complex oxide functional properties: New insights from theory and first-principles calculations | Benedek, Nicole | In this talk, I will describe our recent theoretical efforts exploring ultrafast optical control of the functional properties of perovskite oxides. | Session 124: New Developments in FQHE and Light-induced electronic phases |
| 1668 | Post Quench Dynanics of Couled Electronic Orders: | Millis, Andrew | Motivated by recent experiments on optically induced superconductivity in systems with competing charge density wave and superconducting phases, and optically induced metallicity in systems with competing charge order and ferro magnetic phases we study the dynanmics of systems of coupled order parameters after a short intense light pulse. | Session 124: New Developments in FQHE and Light-induced electronic phases |
| 1669 | Dynamic control of topological and ferroelectric properties in 2D materials | Lindenberg, Aaron | In the first part of this talk I will discuss the application of terahertz frequency light pulses to drive interlayer shear excitations in WTe2, as probed by femtosecond electron diffraction techniques [1]. | Session 124: New Developments in FQHE and Light-induced electronic phases |
| 1670 | Why does the nuclear spin polarization of a GaAs lattice depend on the electronic filling factor? | Smet, Jurgen | Why does the nuclear spin polarization of a GaAs lattice depend on the electronic filling factor? | Session 124: New Developments in FQHE and Light-induced electronic phases |
| 1671 | New paradigm for a magnetic field driven SIT | Trivedi, Nandini | We show that while orbital magnetic field and disorder, acting individually weaken superconductivity, acting together they produce an intriguing evolution of a two-dimensional type-II s-wave superconductor[1-4]. | Session 125: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 1672 | Quasiparticle screening near a bosonic superconductor-insulator transition revealed by magnetic impurity doping | Valles, James | I will describe experiments on ultrathin, nanoporous a-Bi films that focus on how T 0 depends on the pairbreaking effects induced by magnetic impurity doping. | Session 125: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 1673 | The fate of the superfluid density near the SIT in amorphous superconductors | Sacepe, Benjamin | In this talk I discuss the fate of the superfluid density in the vicinity of the transition to insulation in a:InO films. | Session 125: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 1674 | Absence of a Dissipative Quantum Phase Transition in Josephson Junctions | Joyez, Philippe | We propose a new theoretical analysis which accounts for our observation and resolves previous inconsistencies in the theory. | Session 125: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 1675 | Quantum electrodynamics of superconductor-insulator transitions in Josephson junction chains. | Manucharyan, Vladimir; Mencia, Ray; Mehta, Nitish; Kuzmin, Roman | We present the recent results of our spectroscopic studies on three notable SIT systems: a high-inductance ring interrupted by a weak junction (quasicharge localization) [1]; (ii) a homogeneous chain of Josephson junctions (1D superfluid to Bose-glass insulator transition) [2]; and (iii) a chain of relatively strong junctions containing one weak junction impurity (Shmid-Bulgadaev dissipative transition). | Session 125: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 1676 | Simultaneous signatures of quantum spin liquid and broken symmetry in the Heisenberg spin-1/2 pyrochlore lattice | Astrakhantsev, Nikita; Westerhout, Tom; Tiwari, Apoorv; Choo, Kenny; Chen, Ao; Fischer, Mark; Carleo, Giuseppe; Neupert, Titus | To study the ground state properties and identify phase transitions to adjacent ordered phases, we employ two variational approaches, many-variable Monte Carlo and Neural Quantum States. | Session 126: Theories of Exotic Metals |
| 1677 | Parquet approach – the most fundamental diagrammatic method? | Eckhardt, Christian; Honerkamp, Carsten; Kappl, Patrick; Held, Karsten; Kauch, Anna | In this talk we show that the parquet equation follows as natural and in fact completely analogous to well known diagrammatic equations like the Dyson or the Bethe-Salpeter equation. | Session 126: Theories of Exotic Metals |
| 1678 | Composite Fermion Pairing in the ν=1/2+1/2 Bilayer at Large Layer Spacing | Deng, Haoyun; Mendoza, Luis; Bonesteel, Nicholas | Analyzing these equations in the so-called local approximation [2] we find when the less singular repulsive interactions are included the energy gap is strongly suppressed, but still falls off as inverse layer spacing squared, consistent with recent RG analysis [3]. | Session 126: Theories of Exotic Metals |
| 1679 | Breakdown of Emergent Lifshitz Symmetry in Holographic Matter with Harris-Marginal Disorder | Ganesan, Koushik; Lucas, Andrew | We revisit the theory of strongly correlated quantum matter perturbed by Harris-marginal random-field disorder, using the simplest holographic model. | Session 126: Theories of Exotic Metals |
| 1680 | Tightening the Lieb-Robinson bound in locally-interacting systems | Wang, Zhiyuan; Hazzard, Kaden | In this talk we present a method [2] that dramatically and qualitatively improves LR bounds in systems with finite-range interactions. | Session 126: Theories of Exotic Metals |
| 1681 | Hall coefficient of the t-J model | Khait, Ilia; Auerbach, Assa | Here we use high temperature series and a continuted fraction expansion of the dynamical conductivity to calculate the Hall coefficeint of the t-J model. | Session 126: Theories of Exotic Metals |
| 1682 | nonlinear response in strongly-correlated electron systems | Michishita, Yoshihiro; Peters, Robert | [1-3] In this work, we give an analytical derivation of nonlinear responses using the Green’s function methods at finite temperature, expand Parker’s diagram methods[4] to the finite temperature, and compare the results to those by the semi-classical Boltzmann treatment and the reduced-density matrix method. | Session 126: Theories of Exotic Metals |
| 1683 | Finite and Infinite Matrix Product States \\for Gutzwiller Projected Mean-Field Wavefunctions | Petrica, Gabriel; Zhang, Bo-Xiao; Chan, Garnet; Clark, Bryan | We present a novel method to obtain both the finite and infinite MPS (iMPS) representation of the ground state of an arbitrary fermionic quadratic mean-field Hamiltonian, (which in the simplest case is a Slater determinant and in the most general case is a Pfaffian). | Session 126: Theories of Exotic Metals |
| 1684 | Mean field solution of the quantum Coulomb glass | Lovas, Izabella; Kiss, Annamaria; Moca, Catalin Pascu; Zaránd, Gergely | We study a mean field model for the Coulomb glass emerging from the interplay of strong interactions and disorder, by considering spinless fermions on the Bethe lattice in the limit of infinite coordination number. | Session 126: Theories of Exotic Metals |
| 1685 | Exact analytic solution of the infinite-dimensional extended Falicov-Kimball model: the phase diagram and thermodynamic properties | Kapcia, Konrad; Lemanski, Romuald; Krawczyk, Jakub; Zygmunt, Marcin | We compared the results with those obtained within the standard Hartree-Fock approach [4,5]. | Session 126: Theories of Exotic Metals |
| 1686 | Competition of Spinon Fermi Surface and Heavy Fermi Liquids states from the Periodic Anderson to the Hubbard model | Chen, Chuan; Sodemann, Inti; Lee, Patrick | Employing a slave rotor mean-field, we obtain a phase diagram and describe two regimes where the spin liquid state is destroyed by weak interlayer tunnelling, (i) the Kondo limit where the correlated electrons can be viewed as localized spin moments and (ii) near the Mott metal-insulator-transition where the spinon fermi surface transitions continuously into a Fermi liquid. | Session 126: Theories of Exotic Metals |
| 1687 | Fluctuation diagnostic of the nodal/antinodal dichotomy in the Hubbard model at weak coupling: a parquet dual fermion approach | Krien, Friedrich; Lichtenstein, Alexander; Rohringer, Georg | We apply a dual fermion parquet scheme to the half-filled Hubbard model on a square lattice at small interaction. | Session 126: Theories of Exotic Metals |
| 1688 | Effects of three-body correlations on nonlinear current noise through an N-level Anderson impurity: NRG and large N studies | Teratani, Yoshimichi; Oguri, Akira; Sakano, Rui | For strong interactions U, NRG results show that the three-body contributions can be described by a single parameter over a range of 1≤ Nd≤ N-1 [4,5]. | Session 126: Theories of Exotic Metals |
| 1689 | Widely Tunable Mid-Infrared Light Emission in Thin-Film Black Phosphorus | Chen, Chen; Lu, Xiaobo; Deng, Bingchen; Chen, Xiaolong; Guo, Qiushi; Li, Cheng; Ma, Chao; Yuan, Shaofan; Watanabe, Kenji; Taniguchi, Takashi; Yang, Li; Xia, Fengnian | We report the widely tunable mid-infrared light emission from dual-gate hexagonal boron nitride (hBN)/Black Phosphorus (BP)/hBN heterostructure devices. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1690 | Prediction of novel 2D auxetic semiconductors with high carrier mobilities and unusually low lattice thermal conductivities | Chen, Xin; wang, duo; Liu, Xiaobiao; Li, Linyang; Sanyal, Biplab | Using evolutionary structure search methods combined with ab initio theory, we have found two low energy structural types of 2D A 2B (A=Cu, Ag, Au, and B = S, Se) auxetic semiconductors having direct bandgaps in the range 1.09−2.60 eV and high electron mobilities. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1691 | Spinoidal Doping Structures in Sulfurized Molybdenum Carbide | Binion, Anna; Pabbi, Lavish; Banerjee, Riju; Zhang, Fu; Terrones, Mauricio; Hudson, Eric | In this talk, we report results of STM and AFM investigations of spatial doping variations in sulfurized MoC. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1692 | Extraordinary Phase Coherence Length in Epitaxial Halide Perovskites | Zhang, Liangji; King, Isaac; Nasyedkin, Kostyantyn; Chen, Pei; Wang, Lili; Staples, Richard; Lunt, Richard; Pollanen, Johannes | We leverage advances in vapor-phase epitaxy of halide perovskites to perform low-temperature quantum electrical and magnetotransport measurements on single-domain cesium tin iodide (CsSnI 3) epitaxial thin film devices. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1693 | Highly coherent single photon emission from charge tunable GaAs quantum dots | Nguyen, Giang; Zhai, Liang; Löbl, Matthias; Spinnler, Clemens; Javadi, Alisa; Ritzmann, Julian; Wieck, Andreas; Ludwig, Arne; Warburton, Richard | We present a low-noise n-i-p diode with GaAs quantum dots embedded in the intrinsic layer (L. Zhai, et al. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1694 | EDSR spectroscopy of a single hole confined in a gated GaAs double quantum dot | Ellis, Olivia; Korkusinski, Marek; Studenikin, Sergei; Padawer-Blatt, Aviv; Ducatel, Jordan; Bogan, Alex; Gaudreau, Louis; Austing, David; Sachrajda, Andrew; Tracy, Lisa; Hargett, Terry; Reno, John | This research presents theoretical and experimental studies of a single hole confined in a gated GaAs double quantum dot (DQD) [1,2], using microwave excitation to achieve Electric Dipole Spin Resonance (EDSR). | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1695 | k.p theory of quantum dots with smooth alloy profiles | Robichaud, Luc; Krich, Jacob | We present a Fourier-space k.p method for modelling the electronic structure of wurtzite quantum dots with continuous alloy profiles. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1696 | Ultra-long-working-distance Spectroscopy of Single Nanostructures with Aspherical Solid Immersion Microlenses | Bogucki, Aleksander; Zinkiewicz, Lukasz; Grzeszczyk, Magdalena; Pacuski, Wojciech; Nogajewski, Karol; Kazimierczuk, Tomasz; Rodek, Aleksander; Suffczynski, Jan; Watanabe, Kenji; Taniguchi, Takashi; Wasylczyk, Piotr; Potemski, Marek; Kossacki, Piotr | In this work, we present aspherical micro-lenses which redirect emitted photons from semiconductor nanostructure into an ultra-narrow light cone of NA=0.016 – the outcoming light can be collected by a 1 inch-diameter lens at the distance of 590 mm from the sample [1]. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1697 | First principles study of the structural and electronic properties of the in-plane SiC/GeC heterostructures | Alharbi, Safia; Tasnim, Kazi Jannatul; Yu, Ming | First principles study of the structural and electronic properties of the in-plane SiC/GeC heterostructures | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1698 | Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron−Hole Exchange | Goupalov, Serguei; Avdeev, Ivan D.; Nestoklon, Mikhail O. | We study the exciton fine structure in quantum dots of multi-valley lead chalcogenides [1]. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1699 | Three terminal vibron coupled hybrid quantum dot thermoelectric refrigeration. | Mukherjee, Swarnadip; De, Bitan; Muralidharan, Bhaskaran | To justify its impact in optimizing the peak CP and COP, we show that a weak coupling with the bath is preferable when the phonons relax through it and a strong coupling is suitable in the opposite case when the phonons are extracted from the bath. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1700 | Engineering 2D monolayer structures in II-V binary Zintl-phase compounds ZnX (X = As, Sb, Bi) | Thapa, Dinesh; Lamichhane, Bipin; Nandadasa, Chandani; Song, Junseong; Kim, Sung Wng; Lee, Kimoon; Kim, Seong-Gon | We present the engineering of 2D monolayer structures in the orthorhombic compounds ZnX (X = As, Sb, Bi) that belong to the space group pbca using density functional theory (DFT). | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1701 | Integer and multiple fractional values of RH in gateless, millimeter-scale, monolayer epitaxial graphene p-n junctions | Patel, Dinesh; Rigosi, Albert; Marzano, Martina; Kruskopf, Mattias; Liu, Chieh-I; Jin, Hanbyul; Newell, David; Elmquist, Randolph; Liang, Chi-Te | We grew nearly defect-free and monolayer epitaxial graphene (EG) on a hexagonal SiC substrate of centimeter-scale at 1850 0 C and developed a new technique to fabricate electrostatic-gate-free, monolayer EG devices. | Session 127: Non-Chalcogenide 2D Materials and Quantum Dots |
| 1702 | Many-Body Theory of Nonlinear Response in Dirac Materials | Rostami, Habib; Cappelluti, Emmanuele | Using a conserving Baym-Kadanoff approach, we present a fully compelling theory of nonlinear optical and transport response of a Dirac system to electric fields in the presence of disorder scattering. | Session 128: Optical Phenomena in 2D Materials |
| 1703 | Layer-dependent photoresponse of atomically thin WSe2/WS2 heterojunctions | Fu, Zhuangen; Tian, Jifa; Hill, Caleb; Hill, Joshua | Here, we report the fabrication of high-quality WSe 2/WS 2p-n junctions and a systematical study of their layer-dependent photoluminescence and photovoltaic effect using Scanning Electrochemical Cell Microscopy (SECCM). | Session 128: Optical Phenomena in 2D Materials |
| 1704 | Evolution of Reststrahlen-like reflection in the optically thin limit | Ma, Eric; Waldecker, Lutz; Hu, Jenny; Heinz, Tony | Here we present a study of Reststrahlen-like reflection bands when the material transitions from optically thick to optically thin. | Session 128: Optical Phenomena in 2D Materials |
| 1705 | Room temperature superfluorescence from a single nanocuboid | Philbin, John; Kelly, Joseph; Peng, Lintao; Coropceanu, Igor; Talapin, Dmitri; Rabani, Eran; Ma, Xuedan; Narang, Prineha | By combining molecular dynamics, atomistic electronic structure calculations, and model Hamiltonians methods, we show that quasi-2D nanoplatelets oriented along each face of a “nanocuboid” can serve as the (nearly) identical emitters required to observe both superradiant and subradiant phenomena. | Session 128: Optical Phenomena in 2D Materials |
| 1706 | Temperature- and layer- dependent spin-orbit coupling in atom-thick transition metal dichalcogenides | Newaz, Akm; Benson, Garrett; Z. Costa, Viviane; Jamali, Shirin; Yumigeta, Kentaro; Blei, Mark; Tongay, Sefaattin; Wang, Bin; KC, Santosh; Ichimura, Andrew | Our study sheds light on the distinctive behaviors about SOC coupling in layered MoS 2 and WS 2. | Session 128: Optical Phenomena in 2D Materials |
| 1707 | Theory of the absorption lineshape in monolayers of transition metal dichalcogenides | Lengers, Frank; Kuhn, Tilmann; Reiter, Doris | In this contribution we compare different theoretical methods for the description of linear absorption spectra in 2D semiconductors [1]. | Session 128: Optical Phenomena in 2D Materials |
| 1708 | Structure and Optical Anisotropy of Two-Dimensional Tetracene Crystals | Koo, Seonghyun; Ryu, Sunmin | Here, we report the formation, structure and optical anisotropy of two-dimensional (2D) tetracene (Tc) crystals. | Session 128: Optical Phenomena in 2D Materials |
| 1709 | Quantum Geometric Exciton Drift Velocity | Cao, Jinlyu; Fertig, Herb; Brey, Luis | We present a new quantum geometric quantity relevant to excitons that can uniquely determines which we call the dipole curvature. | Session 128: Optical Phenomena in 2D Materials |
| 1710 | Geometric photon-drag effect and nonlinear shift current in centrosymmetric crystals | Shi, Li-kun; Zhang, Dong; Chang, Kai; Song, Justin | Here we argue that a non-zero shift current in centrosymmetric crystals can be activated by a photon-drag effect. | Session 128: Optical Phenomena in 2D Materials |
| 1711 | Evidence for Incommensurate Composite Behaviour in Bi-2212 Crystals by Brillouin Light Scattering Spectroscopy | McNiven, Brad; LeBlanc, James; Andrews, G. Todd | Evidence for Incommensurate Composite Behaviour in Bi-2212 Crystals by Brillouin Light Scattering Spectroscopy | Session 128: Optical Phenomena in 2D Materials |
| 1712 | Superradiant phase transition in two-dimensional materials | Guerci, Daniele; Simon, Pascal; Mora, Christophe | In this talk we will present for the first time a general theory for the superradiant quantum phase transition in materials with arbitrary electron-electron interaction. | Session 128: Optical Phenomena in 2D Materials |
| 1713 | Experimental determination of the complex third-order nonlinear optical susceptibility in graphene | Inukai, Daiki; Koyama, Takeshi; Kawahara, Kenji; Ago, Hiroki; Kishida, Hideo | In this research, we investigated the electronic transition dominating THG in single-layer graphene from a spectral measurement of THG. | Session 128: Optical Phenomena in 2D Materials |
| 1714 | Multistable excitonic Stark effect in a nanophonotonic cavity | Xiong, Ying; Rudner, Mark; Song, Justin | Here we argue that coupling to nanophotonic cavities can enable the excitonic Stark effect to become highly nonlinear, displaying multi-valued and hysteretic Stark shifts that depend on the history of the irradiating light. | Session 128: Optical Phenomena in 2D Materials |
| 1715 | Relaxation dynamics of photoexcited carriers in hBN-encapsulated graphene | Yeung, Matthew; Han, Tianyi; Taniguchi, Takashi; Watanabe, Kenji; Ju, Long | In this talk, I will report on our temperature-dependent near-infrared pump mid-infrared probe measurement of hBN-encapsulated monolayer graphene. | Session 128: Optical Phenomena in 2D Materials |
| 1716 | An alternate way to calculate magnetic resonance for nuclei of arbitrary spin values | LIU, ZHICHEN; Kim, Sunghyun; Klemm, Richard | Here we provide a simpler procedure that extends the simpler solution for spin ½ particles to higher spin states. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1717 | The adiabatic approximation for magnetic resonance of spin 1 and 3/2 nuclei | Kim, Sunghyun; LIU, ZHICHEN; Klemm, Richard | We have studied both the adiabatic and non-adiabatic limits for the magnetic resonance of spin 1 and 3/2 nuclei. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1718 | Paramagnons and high-temperature superconductivity in mercury-based cuprates | Wang, Lichen; He, Guanhong; Yang, Zichen; Garcia-Fernnandez, Mirian; Nag, Abhishek; Zhou, Ke-jin; Minola, Matteo; Le Tacon, Matthieu; Keimer, Bernhard; Peng, Yingying; Li, Yuan | We have used resonant inelastic photon (Raman, X-ray) scattering to study the first two members of the Hg-family of cuprates, HgBa 2CuO 4+d and HgBa 2CaCu 2O 6+d, which have nearly identical crystal structure in the charge-reservoir layers but different electronic environment in the quintessential Cu-O layers. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1719 | Manipulation of the time-reversal symmetry breaking superconductivity in Sr2RuO4 by uniaxial stress | Ghosh, Shreenanda; Grinenko, Vadim; Sarkar, Rajib; Bruckner, Felix; Orain, Jean-Christophe; Nikitin, Artem; Park, Joonbum; Barber, Mark; Kikugawa, Naoki; Bobowski, Jake; Sokolov, Dmitry; Maeno, YOSHITERU; Mackenzie, Andrew P.; Luetkens, Hubertus; Hicks, Clifford; Klauss, Hans-Henning | We report measurements of zero-field muon spin relaxation (μSR) on samples under uniaxial stresses of up to ∼1.05 GPa. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1720 | Superconductivity-induced change in magnetic anisotropy in epitaxial ferromagnet-superconductor hybrids with spin-orbit interaction | González-Ruano, César; Caso, Diego; Tiusan, Coriolan; Hehn, Michel; Aliev, Farkhad | Unlike the common expectation that superconducting spintronics and long-range triplet (LRT) proximity effects require complex ferromagnetic multilayers, noncollinear magnetization or half-metals, we propose a platform compatible with commercial spintronics. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1721 | Competition between superconductivity and antiferromagnetic glass freezing in the pseudogap regime of La1.8-xEu0.2SrxCuO4 | Missiaen, Anne; Julien, Marc-Henri; LeBoeuf, David; Mayaffre, Hadrien; Pyon, Sunseng; Takayama, Tomohiro; Takagi, Hidenori | Here, we present 139La nuclear magnetic resonance (NMR) measurements of the temperature, magnetic field and hole-doping dependence of spin fluctuations in the sister compound La 1.8-xEu 0.2Sr xCuO 4. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1722 | Dynamical torques from Shiba states in s-wave superconductors | Mishra, Archana; Takei, So; Simon, Pascal; Trif, Mircea | We study the back-action of these induced states on the dynamics of the classical moments. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1723 | Effect of Lead Doping on Inversion Symmetry Breaking in Cuprates | Currier, Kayla; Lin, Chiu-Yun; Gotlieb, Kenneth; Jozwiak, Chris; Kurashima, Koshi; Eisaki, Hiroshi; Lanzara, Alessandra | We focus on measuring the effect of the electric field that arises due to the incommensurate modulation on the spin polarization of Bi 2Sr 2CaCu 2O 8+δ (Bi2212). | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1724 | LaNiGa2 | Sherpa, Phurba; Curro, Nicholas; Vinograd, Igor; Taufour, Valentin; Badger, Jackson | We report the temperature dependence of the spectra and relaxation rates down to Tc. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1725 | Incommensurate Spin Fluctuations in the Spin-triplet Superconductor Candidate UTe2 | Duan, Chunruo; Sasmal, Kalyan; Zhu, Jian-Xin; Podlesnyak, Andrey; Maple, M Brian; Si, Qimiao; Dai, Pengcheng | Here we use neutron scattering to show that although UTe2 exhibits no static magnetic order down to 0.3 K, its magnetism in the (0 K L) plane is dominated by incommensurate spin fluctuations near antiferromagnetic (AFM) ordering wave vector and extends to at least 2.6 meV. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1726 | Interfacial Spin Structure and Spin-Triplet Superconductivity in Magnetic-Superconducting Heterostructures | Pandey, Sudip; Ren, Haowen; Holladay, Benjamin; Kirby, Brian; Borchers, Julie; Fullerton, Eric; Sinha, Sunil | Here, we used polarized neutron reflectivity combined with transport measurements to probe the interplay of magnetism and superconductivity in a new spin-triplet spin valve heterostructure with epitaxial growth of Co and Ni thin films as the fixed hard magnetic layer, epitaxial NiFe as the soft magnetic layer, and Nb as the superconductor. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1727 | Parallel Spin Stripes and Their Coexistance with Superconducting Ground States at Optimal and High Doping in La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$ | Ma, Qianli; Rule, Kirrily; Cronkwright, Zachary; Dragomir, Mirela; mitchell, gabrielle; Smith, Evan; Chi, Songxue; Kolesnikov, Alexander; Stone, Matthew; Gaulin, Bruce | Here we present new elastic and inelastic neutron scattering measurements on single crystals of La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$ with x = 0.125, 0.19, 0.24 and 0.26, and show that 2d, quasi-static, parallel spin stripes are observed to onset at temperatures such that the parallel spin stripe phase envelopes all superconducting ground states in this system. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1728 | Studies of the Non-Centrosymmetric Superconductor ThIrSi using 29Si NMR | Blackwell, Seth; Santos, Frederico; Rosa, Priscila; Thomas, Sean; Bauer, Eric; Thompson, Joe; Ronning, Filip | We discuss our NMR results on the superconductor ThIrSi by measuring the 29Si spin-1/2 resonance. | Session 129: Superconductivity: Spin Properties (NMR, NQR, neutron scattering, etc.) |
| 1729 | Lattice-Shifted Nematic Quantum Critical Point in FeSe1-xSx | Gallais, Yann | We report the evolution of nematic fluctuations in FeSe 1-xS x single crystals as a function of Sulfur content x across the nematic quantum critical point (QCP) x c=0.17 via Raman scattering. | Session 130: Spectroscopic Evidence for Orbital Transmutation in the Nematic Phase of FeSe. |
| 1730 | Understanding the nematic electronic structure of FeSe and its impact on the superconducting state. | Rhodes, Luke | In this talk, I will review the peculiar effect of the nematic state on the electronic structure of FeSe. | Session 130: Spectroscopic Evidence for Orbital Transmutation in the Nematic Phase of FeSe. |
| 1731 | Interplay of nematic order and spin-orbit interaction in iron-based superconductors from ARPES | Borisenko, Sergey | I will give an overview of our recent ARPES results on very fine details of the electronic structure of iron-based superconductors (IBS) and their influence on the superconductivity [1-3]. | Session 130: Spectroscopic Evidence for Orbital Transmutation in the Nematic Phase of FeSe. |
| 1732 | Electronic Nematicity in FeSe | Yi, Ming | Here, we report a detailed study of the electronic structure of fully detwinned FeSe across the nematic phase transition using angle-resolved photoemission spectroscopy. | Session 130: Spectroscopic Evidence for Orbital Transmutation in the Nematic Phase of FeSe. |
| 1733 | Nematicity-induced changes in the Raman response in FeSe | Blumberg, Girsh | We use polarization-resolved electronic Raman spectroscopy to study quadrupolar charge dynamics in non-magnetic FeSe 1-xS x superconductor. | Session 130: Spectroscopic Evidence for Orbital Transmutation in the Nematic Phase of FeSe. |
| 1734 | Circuit-QED-based investigations of two-dimensional Josephson junction arrays in the quantum regime | Ikegami, Hiroki; Raj, Cosmic; Nakamura, Yasunobu | In the talk, we will discuss the results in connection with the quantum phase transition. | Session 131: Superconductivity:Josephson Junctions |
| 1735 | Wide Josephson Junction on InAs quantum well: missing Shapiro steps in non-topological regime | Dartiailh, Matthieu; Cuozzo, Joseph; Heiba Elfeky, Bassel; Mayer, William; Yuan, Joseph; Wickramasinghe, Kaushini; Rossi, Enrico; Shabani, Javad | Here we report on missing odd steps in topologically trivial Josephson junctions fabricated on InAs quantum wells. | Session 131: Superconductivity:Josephson Junctions |
| 1736 | Spatial control of supercurrent distribution in Josephson junctions | Schiela, William; Dartiailh, Matthieu; Sardashti, Kasra; Barati, Fatemeh; Lotfizadeh, Neda; Yuan, Joseph; Hatefipour, Mehdi; Strickland, William; Heiba Elfeky, Bassel; Shabani, Javad | We report preliminary device design and characterization of the junction critical current as a function of magnetic field applied perpendicular to the plane. | Session 131: Superconductivity:Josephson Junctions |
| 1737 | Current-Phase Relationship of Josephson Junctions with NbxSi1-x Barriers | Thompson, Miranda; Castellanos-Beltran, Manuel; Fox, Anna; Hopkins, Peter; Dresselhaus, Paul; Benz, Samuel | We characterized the current-phase relationship (CΦR) of Josephson junctions with niobium doped amorphous silicon barriers. | Session 131: Superconductivity:Josephson Junctions |
| 1738 | Conductance spectroscopy of Andreev bound states in multi-terminal Josephson junctions | Lee, Hanho; Pankratova, Natalia; Kuzmin, Roman; Wickramasinghe, Kaushini; Vavilov, Maxim; Shabani, Javad; Manucharyan, Vladimir | Conductance spectroscopy of Andreev bound states in multi-terminal Josephson junctions | Session 131: Superconductivity:Josephson Junctions |
| 1739 | Impact of junction length on the supercurrent resilience against magnetic field in hybrid nanowire Josephson junctions | Levajac, Vukan; Liu, Chun-Xiao; Mazur, Grzegorz; van Loo, Nick; Memisevic, Elvedin; Waardenburg, Daan; Badawy, Ghada; Gazibegovic, Sasa; Bakkers, Erik; Heedt, Sebastian; Quintero-Peréz, Marina; Wimmer, Michael; Kouwenhoven, Leo; Wang, Jiyin | We study InSb/Al nanowire Josephson junctions of various lengths patterned by lithographically defined shadow-walls. | Session 131: Superconductivity:Josephson Junctions |
| 1740 | Gate-Dependent Transport in Multi-Terminal Josephson Junctions | Graziano, Gino; Lee, Joon Sue; Harrington, Sean; Pendharkar, Mihir; Palmstrom, Chris; Pribiag, Vlad | Here we study the effects on transport of several top-gating arrangements on multi-terminal Josephson junctions with many conducting modes based on an InAs 2DEG proximitized with an epitaxial aluminum layer and many conducting modes. | Session 131: Superconductivity:Josephson Junctions |
| 1741 | Long range Josephson coupling across a half metallic ferromagnet at high temperatures | Sanchez-Manzano, David; Mesoraca, Salvatore; Cuellar, Fabian; Cabero, Mariona; Rouco, Victor; Orfila, Gloria; Palermo, Xavier; Balan, Adrian; Marcano, Lourdes; Sander, Anke; Rocci, Mirko; Garcia Barriocanal, Javier; Gallego, Fernando; Rivera, Alberto; Mompean, Federico; Garcia Hernandez, Mar; Gonzalez-Calbet, Jose; Leon, Carlos; Valencia, Sergio; Feuillet-Palma, Cheryl; Bergeal, Nicolas; Buzdin, Alexandre; Lesueur, Jerome; Villegas, Javier; Santamaria, Jacobo | We demonstrate extremely long range high-temperature Josephson coupling across the half-metallic manganite La 0.7Sr 0.3MnO 3 combined with the superconducting cuprate YBa 2Cu 3O 7. | Session 131: Superconductivity:Josephson Junctions |
| 1742 | In-situ growth and fabrication of planar ferromagnetic semiconductor-based Josephson junctions | Ishihara, Keita; Duc Anh, Le; Tanaka, Masaaki | We report an in-situ epitaxial growth using molecular beam epitaxy (MBE) and fabrication of nano-size Josephson junctions (JJs) with s-wave superconductor Al electrodes grown on (In,Fe)As or InAs/(Ga,Fe)Sb heterostructures, where (In,Fe)As and (Ga,Fe)Sb are Fe-doped FMSs. | Session 131: Superconductivity:Josephson Junctions |
| 1743 | Experimental probes and modeling of Majorana bound states parity transitions in S-TI-S lateral Josephson junctions | Yue, Guang; Yao, Xiong; Jain, Deepti; Moon, Jisoo; Oh, Seongshik; Bezryadin, Alexey; Van Harlingen, Dale | In this talk, we report progress on experiments on Nb-Bi 2Se 3-Nb junctions designed to probe the parity states of MBS pairs and the transitions between them via measurements of the critical current distribution and supercurrent fluctuations. | Session 131: Superconductivity:Josephson Junctions |
| 1744 | Tracking the location of Majorana states bound to Josephson vortices in S/TI/S junctions by Scanning SQUID Microscopy | Arias, Gilbert; Yue, Guang; Montone, Jessica; Van Harlingen, Dale | In this talk, we report our progress towards cooling down our SSM in a dry dilution refrigerator and imaging the Josephson vortices and the currents carried by the Majorana states in S-TI-S devices. | Session 131: Superconductivity:Josephson Junctions |
| 1745 | Robust supercurrent in graphene Josephson junctions assisted by strong spin-orbit interaction | Wakamura, Taro; WU, NianJheng | We find similar signatures of induced superconductivity in both systems when the junctions are short (100nm), for fields up to 1T. | Session 131: Superconductivity:Josephson Junctions |
| 1746 | Reopening of the superconducting gap in a planar Josephson junction | Banerjee, Abhishek; Rahman, Md. Ahnaf; Wang, He-Ran; Li, Mingrui; Kringhøj, Anders; Drachmann, Asbjørn; Whiticar, Alexander; Lesser, Omri; Lindemann, Tyler; Gronin, Sergei; Gardner, Geoffrey; Oreg, Yuval; Stern, Ady; Manfra, Michael; Marcus, Charles | Here we study a one-dimensional superconductor formed in a planar Josephson junction that can undergo a topological phase transition in the presence of an in-plane magnetic field. | Session 131: Superconductivity:Josephson Junctions |
| 1747 | Superconductivity in Planar Germanium Quantum Wells | Aggarwal, Kushagra; Hofmann, Andrea; Jirovec, Daniel; Prieto, Ivan; Sammak, Amir; Botifoll, Marc; Martí-Sánchez, Sara; Veldhorst, Menno; Arbiol, Jordi; Scappucci, Giordano; Danon, Jeroen; Katsaros, Georgios | Here, we demonstrate transparent coupling between superconductors and a Ge quantum well, with high magnetic field resilience. | Session 131: Superconductivity:Josephson Junctions |
| 1748 | High Resolution Measurements of the Superconducting Energy Gaps of Assymetrical all-MgB2 Thin Film Josephson Junctions | Ramos, Roberto; Lambert, Joseph; Nakoda, Masahito; Naito, Michio | We have previously analyzed substructure within the two superconducting energy gaps of Magnesium diboride (MgB ) using tunneling spectroscopy [1,2]. | Session 131: Superconductivity:Josephson Junctions |
| 1749 | Hall drift of fractional Chern insulators in few-boson systems | Repellin, Cécile; Leonard, Julian; Goldman, Nathan | In this work, we numerically analyze the center-of-mass Hall drift of a small ensemble of hardcore bosons, initially prepared in the ground state of the Harper-Hofstadter-Hubbard model. | Session 132: Topological States in AMO Systems |
| 1750 | Bosonic Pfaffian State in the Hofstadter-Bose-Hubbard Model | Palm, Felix; Buser, Maximilian; Leonard, Julian; Aidelsburger, Monika; Schollwoeck, Ulrich; Grusdt, Fabian | Here we use the density-matrix renormalization-group (DMRG) method to study the Hofstadter-Bose-Hubbard model at filling factor ν = 1 and find strong indications that at α = 1/6 magnetic flux quanta per plaquette the ground state is a lattice analog of the continuum Pfaffian. | Session 132: Topological States in AMO Systems |
| 1751 | Synthetic Dimensions with Rydberg Atoms | Dasgupta, Sohail; Kanungo, Soumya; Dunning, F; Killian, Thomas; Hazzard, Kaden | We will discuss comparisons with ongoing experiments, which have observed topological edge states in the Su-Schrieffer-Heeger (SSH) model consisting of alternating weak and strong tunnelings in 4- and 6-site synthetic dimension systems consisting of pairs of 3S 1,m=0 and 3P 0 levels with principal quantum numbers n=57-59. | Session 132: Topological States in AMO Systems |
| 1752 | Building quantum dots and Laughlin puddles from optical photons | Schine, Nathan | In a quantum dot we observe these interactions giving rise to strong anti-bunching of photons travelling through the system. | Session 132: Topological States in AMO Systems |
| 1753 | Determination of Chern Number by Measurement of Spin Polarization of Spin-Orbit Coupled Ultracold Atoms in Optical Lattices | Alase, Abhijeet; Feder, David | As part of the latter result, we present the first experimental scheme to our knowledge for simulating spin-orbit coupling on a triangular optical lattice. | Session 132: Topological States in AMO Systems |
| 1754 | Hyperbolic band theory | Maciejko, Joseph; Rayan, Steven | For a quantum particle propagating in a large class of hyperbolic lattice potentials, we construct a continuous family of eigenstates that acquire Bloch-like phase factors under a discrete but noncommutative group of hyperbolic translations, the Fuchsian group of the lattice. | Session 132: Topological States in AMO Systems |
| 1755 | Non-Hermitian band theory of nonreciprocal transmission and amplification | Xue, Wen-Tan; Li, Mingrui; Hu, Yu-Min; Song, Fei; Wang, Zhong | In this work, we find these formulas in a compact and user-friendly form. | Session 132: Topological States in AMO Systems |
| 1756 | Non-Hermitian Disorder-induced Topological Insulators | Luo, Xiwang; Zhang, Chuanwei | We propose a feasible scheme to implement and probe such non-Hermitian disorder driven topological insulators using photons in coupled micro-cavities. | Session 132: Topological States in AMO Systems |
| 1757 | Non-Hermitian Dynamics of Spin Chains with Loss and Gain | Meriles, Carlos; Acosta, Rodolfo; Zangara, Pablo; Bussandri Mattia, Santiago | In this work, we theoretically study the non-Hermitian dynamics of hybrid electron/nuclear spin systems in the simultaneous presence of electron spin pumping and spin-lattice relaxation. | Session 132: Topological States in AMO Systems |
| 1758 | Correspondence between Winding Numbers and Skin Modes in Non-Hermitian Systems | Zhang, Kai; Yang, Zhesen; Fang, Chen | We establish exact relations between the winding of “energy” (eigenvalue of Hamiltonian) on the complex plane as momentum traverses the Brillouin zone with periodic boundary condition, and the presence of “skin modes” with open boundary conditions in non-Hermitian systems. | Session 132: Topological States in AMO Systems |
| 1759 | Non-Hermitian bulk-boundary correspondence and skin effect | Zhesen, Yang | In this talk, I will reveal the two-fold meaning of the non-Hermitian BBC [2]. | Session 132: Topological States in AMO Systems |
| 1760 | Topological photonics at the nanoscale | Zhen, Bo | Topological photonics at the nanoscale | Session 132: Topological States in AMO Systems |
| 1761 | Enhanced repulsively and attractively bound atom pairs in topological optical lattice ladders | Flannigan, Stuart; Daley, Andrew | Inspired by the growing interest in using cold-atoms in optical lattices to explore the effects of strong interactions in topological band structures, we investigate phases in the Cruetz ladder and Lieb lattice which are both characterised by flat energy bands. | Session 132: Topological States in AMO Systems |
| 1762 | Realizing artificial topological matter in arrays of Rybderg atoms | Lahaye, Thierry | In this talk I will show how Rydberg array platforms for quantum simulation allow for an original way of exploring topological phases of matter, by using the resonant dipole-dipole interaction between several Rydberg levels. | Session 132: Topological States in AMO Systems |
| 1763 | Symmetry-protected Topological Phases in Spinful Bosons with a Flat Band | Yang, Hong; Nakano, Hayate; Katsura, Hosho | We theoretically demonstrate that interacting symmetry-protected topological (SPT) phases can be realized with ultracold spinful bosonic atoms loaded on lattices which has a flat band at the bottom of the band structure. | Session 132: Topological States in AMO Systems |
| 1764 | Spatial and Spectral Mode-Selection Effects in Topological Lasers with Frequency-Dependent Gain | Seclì, Matteo; Capone, Massimo; Carusotto, Iacopo | In this work we lift these requirements; by building a phase diagram of our topological laser, we show indeed that lasing into a topologically protected edge mode can be promoted even in the case of a spectrally wide gain centered at a bulk band frequency. | Session 132: Topological States in AMO Systems |
| 1765 | Topological Euler Class as a Dynamical Observable in Optical Lattices | Unal, Nur; Bouhon, Adrien; Slager, Robert-Jan | We report on robust signatures of a new type of topology—the Euler class—in such a dynamical setting [1]. | Session 132: Topological States in AMO Systems |
| 1766 | Restoring number conservation in quadratic bosonic Hamiltonians with dualities: Applications for quantum simulation and topological classification. | Flynn, Vincent; Cobanera, Emilio; Viola, Lorenza | We describe how our approach may be useful for achieving analog quantum simulation of PT-symmetric Hamiltonians with significantly less experimental demand and increased robustness. | Session 132: Topological States in AMO Systems |
| 1767 | Quantum optics meets topology: individual and collective phenomena | Gonzalez-Tudela, Alejandro | In this talk, I will discuss the emergence of unconventional quantum dynamics and interactions when quantum emitters are coupled to topological 1D waveguides [6] and 3D photonic Weyl environments [7]. | Session 132: Topological States in AMO Systems |
| 1768 | Persistent homology of topological band structures | Leykam, Daniel; Angelakis, Dimitris | In this work, we propose to use persistent homology to characterize band structures of periodic lattices. | Session 132: Topological States in AMO Systems |
| 1769 | Driven-dissipative creation of a topologically ordered state (AKLT state) | Sharma, Vaibhav; Mueller, Erich | We propose an experimentally viable method to dissipatively create the AKLT (Affleck-Lieb-Kennedy-Tasaki) state which exhibits symmetry protected topological order. | Session 132: Topological States in AMO Systems |
| 1770 | Realizing Z2 phases and Majorana Spectroscopy in nearest-neighbor paired Bose-Hubbard systems | Vishveshwara, Smitha; Weld, David | We describe a cold-atom realization of such a system in a biased zig-zag optical lattice. | Session 132: Topological States in AMO Systems |
| 1771 | The effect of atom motion in Rydberg-atom quantum spin models | Zhang, Zewen; Sundar, Bhuvanesh; Yuan, Ming; Hazzard, Kaden | In this talk, we show that atom motion indeed can semi-quantitatively explain the experimentally observed behavior. | Session 132: Topological States in AMO Systems |
| 1772 | Squaring the fermion: The threefold way and the fate of zero modes | Xu, Qiao-Ru; Flynn, Vincent; Alase, Abhijeet; Cobanera, Emilio; Viola, Lorenza; Ortiz, Gerardo | In the spirit of Dirac’s derivation of a fermionic theory by "taking the square root" of the bosonic Klein-Gordon equation, we present a squaring procedure, mapping fermionic to bosonic theories, that helps establish a threefold way topological classification of stable noninteracting bosonic matter. | Session 132: Topological States in AMO Systems |
| 1773 | Observability of a Majorana phase transition in a few-body model | Bland, Jared; Greene, Chris; Wehefritz-Kaufmann, Birgit | We utilize a number conserving analog of the Kitaev wire model due to Iemini et al. in the small-lattice limit to examine topological properties in a realistic ultracold atomic model. | Session 132: Topological States in AMO Systems |
| 1774 | Stabilizing topological superfluidity of cold fermions in two-dimensional optical lattices | Zhang, Junhua; Tewari, Sumanta; Scarola, Vito | Theoretical studies have shown that identical fermions in a two-dimensional lattice can form a topological superfluid state, most notably a chiral p-wave pairing state, in the presence of attractive interactions. | Session 132: Topological States in AMO Systems |
| 1775 | Room temperature strain-induced Landau levels in graphene on a wafer-scale platform | Damascelli, Andrea | Here, we show that pseudomagnetic fields can be generated in graphene through wafer-scale epitaxial growth. | Session 133: Straintronics: Tuning the electronic properties of 2D materials by strain engineering |
| 1776 | Evidence of flat bands and correlated states in buckled graphene superlattices | Mao, Jinhai | When we introduce the Fermi level into these flat bands using electrostatic doping, we observe a pseudogap-like depletion in the density of states, which signals the emergence of a correlated state. | Session 133: Straintronics: Tuning the electronic properties of 2D materials by strain engineering |
| 1777 | Building crystals from moiré interfaces | Carr, Stephen | In this talk the microscopic origins of electronic moiré potentials will be examined alongside the wide ranging possibilities for the electronic states they produce. | Session 133: Straintronics: Tuning the electronic properties of 2D materials by strain engineering |
| 1778 | Band flattening in periodically buckled monolayer graphene | Peeters, Francois | From the geometry, amplitude, and period of the periodic pseudo-magnetic field, we determine the necessary conditions to access the regime of correlated phases by examining the band flattening. | Session 133: Straintronics: Tuning the electronic properties of 2D materials by strain engineering |
| 1779 | Strain Modulated Superlattices in Graphene | Hudson, Eric | In this presentation I will discuss an alternative approach. | Session 133: Straintronics: Tuning the electronic properties of 2D materials by strain engineering |
| 1780 | Light induced topological phases in two-dimensional van der Waals heterostructures | Rubio, Angel | We will discuss new states of matter that are optically induced and have no equilibrium counterparts, and we will identify the fingerprints of these novel states that will be probed with pump-probe spectroscopies. | Session 134: Strong Light-Field on Topological Matter |
| 1781 | Topological effects in high-harmonic generation from finite and bulk solids | Bauer, Dieter | We start with two-band bulk systems (examples being the Su-Schrieffer-Heeger chain, the Haldane or the Qi-Wu-Zhang models) and derive an explicit equation for the velocity of the laser-driven electrons, including all topological terms [1] that are often swept under the rug by approximations in treatments based on the semi-conductor Bloch equations. | Session 134: Strong Light-Field on Topological Matter |
| 1782 | Light-field induced anomalous Hall effect in graphene | McIver, James | In this talk, I will report on our recent observation of a light-induced anomalous Hall effect in graphene driven by a femtosecond pulse of circularly polarized light [6]. | Session 134: Strong Light-Field on Topological Matter |
| 1783 | Topological materials in ultrafast and strong laser fields | Apalkov, Vadym | We have studied theoretically ultrafast electron dynamics in different types of topological materials, such as graphene, transition metal dichalcogenides (TMDCs), 3D topological insulators, Weyl semimetals, and others. | Session 134: Strong Light-Field on Topological Matter |
| 1784 | High-order harmonic generation from topological insulators | Ghimire, Shambhu | In this talk, I will give a brief overview of the field and present our new experimental and theoretical results on the generation of high-order harmonics from a prototypical three-dimensional topological insulator Bi 2Se 3 subjected to strong mid-infrared laser fields [3]. | Session 134: Strong Light-Field on Topological Matter |
| 1785 | Lars Onsager Prize (2020): Swarms, flocks and crowds | Vicsek, Tamas | After an introduction to the basic examples and aspects of flocking, I shall present two recent case studies related to the role of hierarchical decision-making during collective motion. | Session 135: Onsager and Davisson-Germer Prize Session |
| 1786 | The flocking theory: The early developments and a new perspective | Tu, Yuhai | The flocking theory: The early developments and a new perspective | Session 135: Onsager and Davisson-Germer Prize Session |
| 1787 | Davisson-Germer Prize in Atomic or Surface Physics: Exploring the Atomic and Electronic Landscape of Low-Dimensional Materials | Crommie, Michael | I will describe how characterization of graphene via cryogenic STM has enabled ultra-relativistic behavior such as atomic collapse and Dirac fermion quantum confinement to be directly imaged in gated graphene devices. | Session 135: Onsager and Davisson-Germer Prize Session |
| 1788 | Lars Onsager Prize (2021): Bose-Einstein condensate – a classical limit of matter waves | Pitaevskii, Lev | Lars Onsager Prize (2021): Bose-Einstein condensate – a classical limit of matter waves | Session 135: Onsager and Davisson-Germer Prize Session |
| 1789 | Title: Birth, Death, and Flight: the hydrodynamics of Malthusian flocks | Toner, John | I’ll present the hydrodynamic theory of “Malthusian Flocks": moving aggregates of self-propelled entities (e.g., organisms, cytoskeletal actin, microtubules in mitotic spindles) that reproduce and die. | Session 135: Onsager and Davisson-Germer Prize Session |
| 1790 | Rare region effects across a topological to trivial insulator quantum phase transition in three-dimensions | Fu, Yixing; Wilson, Justin; Pixley, Jed | We apply the kernel polynomial method to numerically calculate transport properties on large system sizes to determine the stability of this putative semimetal phase boundary. | Session 136: Topological Insulators Without Translation Symmetry |
| 1791 | Skin effect and winding number in disordered non-Hermitian systems | Claes, Jahan; Hughes, Taylor | In this talk, I’ll present a real-space generalization of the winding number that applies to disordered systems. | Session 136: Topological Insulators Without Translation Symmetry |
| 1792 | Multicriticality of Class D Disordered Topological Insulator in a Two-dimensional Lattice Model | Wang, Tong; Pan, Zhiming; Gruzberg, Ilya; Ohtsuki, Tomi; Shindou, Ryuichi | A two-dimensional tight-binding model of a disordered topological insulator in class D is numerically studied by the transfer matrix method and the kernel polynomial expansion (KPE). | Session 136: Topological Insulators Without Translation Symmetry |
| 1793 | Topology of ordered and amorphous chiral matter | Guzmán, Marcelo; Bartolo, Denis; Carpentier, David | In this work we focus on materials having a chiral symmetry such as crystals with a sub-lattice symmetry and all mechanical systems assembled from beads and springs. | Session 136: Topological Insulators Without Translation Symmetry |
| 1794 | Structural and electronic properties of realistic two-dimensional amorphous topological insulators | Focassio, Bruno; Schleder, Gabriel; Costa, Marcio; FAZZIO, ADALBERTO; Lewenkopf, Caio | Using flat bismuthene as a platform, we systematically constructed realistic amorphous topological insulators systems through ab initio calculations. | Session 136: Topological Insulators Without Translation Symmetry |
| 1795 | Charge pumping in one dimensional quasicrystals characterized by Bott index | Yoshii, Mao; Kitamura, Sota; Morimoto, Takahiro | In this talk, we will talk about the charge pumping in the quasiperiodic systems by applying Bott index that computes topological indices based on real space formulation. | Session 136: Topological Insulators Without Translation Symmetry |
| 1796 | Critical behavior of structurally disordered quantum Hall network models from an alternative scaling variable | Dresselhaus, Elizabeth; Sbierski, Bjoern; Moore, Joel; Gruzberg, Ilya | Numerous works have used Lyapunov exponent finite-size scaling to calculate the localization length critical exponent ν ~ 2.6. | Session 136: Topological Insulators Without Translation Symmetry |
| 1797 | Weak breaking of translational symmetry in Z2 Topological ordered states | Rao, Peng; Sodemann, Inti | We study Z2 topologically ordered states enriched by translational symmetry by employing a recently developed 2D bosonization approach that implements an exact Z2 charge-flux attachement in the lattice. | Session 136: Topological Insulators Without Translation Symmetry |
| 1798 | Topological Hamiltonian and edge state detection using ARPES in amorphous systems1. | Marsal, Quentin; Varjas, Daniel; Grushin, Adolfo | We introduce the topological Weaire-Thorpe class of models, which are defined on amorphous lattices with fixed coordination number, a realistic feature of covalently bonded amorphous solids. | Session 136: Topological Insulators Without Translation Symmetry |
| 1799 | Quantum phase transition in the disordered topological insulator (Bi1-xSbx)2Se3 | Shirali, Karunya Shailesh; Johnson, Duane; Singh, Prashant; Shelton, William; Vekhter, Ilya | To mimic substitutional disorder, we have constructed partially ordered supercells where the atomic pair correlations are zero up to the third nearest neighbor cell. | Session 136: Topological Insulators Without Translation Symmetry |
| 1800 | Disordered topological crystalline insulators | Queiroz, Raquel; Song, Zhida; Ilan, Roni; Bernevig, Andrei; Stern, Ady | In this talk, we explore the impact of disorder in two-dimensional topological systems protected by crystalline symmetry, the structure of their impurity states, and the possibility for the existence of delocalized states in the bulk. | Session 136: Topological Insulators Without Translation Symmetry |
| 1801 | Revealing Dispersive Amorphous Electronic States on the Surface of a Glassy Topological Insulator | Ciocys, Samuel; Corbae, Paul; Marsal, Quentin; Varjas, Daniel; Zeltmann, Steven; Grushin, Adolfo; Hellman, Frances; Lanzara, Alessandra | In this work, we uncover a highly dispersive, spin-momentum locked topological surface state in amorphous Bi 2Se 3 using Angle Resolved Photoemission Spectroscopy. | Session 136: Topological Insulators Without Translation Symmetry |
| 1802 | Delocalization Transition of Disordered Axion Insulator | Stern, Ady; Song, Zhida; Lian, Biao; Queiroz, Raquel; Ilan, Roni; Bernevig, Andrei | We show that under quenched disorder respecting inversion symmetry on average, the topology of the axion insulator stays robust, and an intermediate metallic phase in which states are delocalized is unavoidable at the transition from an axion insulator to a trivial insulator. | Session 136: Topological Insulators Without Translation Symmetry |
| 1803 | Disorder induced topology in quench dynamics | Hsu, Hsiu-Chuan; Chiu, Pok Man; Chang, Po-Yao | We study the topology of quench dynamics in strongly-disordered one dimensional systems. | Session 136: Topological Insulators Without Translation Symmetry |
| 1804 | Topological properties of electronic states in quasiperiodic chains | Tsubota, Shoichi; Akagi, Yutaka; Katsura, Hosho | In this study, we analyze topological properties of a tight-binding model on the Thue-Morse chain, which is one of the quasiperiodic chains. | Session 136: Topological Insulators Without Translation Symmetry |
| 1805 | Synthesis and Characterization of Nitrogen-substituted Nickel Oxide | Godin, Simon; Elfimov, Ilya; Li, Fengmiao; Davidson, Bruce; Sutarto, Ronny; Sawatzky, George; Zou, Ke | We present here the synthesis of NiO thin films with low substitution concentrations of oxygen (O) by nitrogen (N), using NO gas-assisted molecular beam epitaxy method. | Session 137: Thin Film Growth and Processing |
| 1806 | Effects of short-range attachment barriers on island nucleation in irreversible growth | Hamadna, Sameer; Khatri, Indiras; Sabbar, Ehsan; Amar, Jacques | Here we present the results of kinetic Monte Carlo (KMC) simulations for the case of deposition on a 2D substrate and irreversible growth corresponding to i = 1. | Session 137: Thin Film Growth and Processing |
| 1807 | Fast Diffusive Behavior of Pb on Ge(111) at Low to Room Temperatures During Island Formation | Kim, Andrew; Baum, Eli; Chiang, Shirley; Tringides, Michael; Childs, Andre; Le, Duy; Rahman, Talat | Fast Diffusive Behavior of Pb on Ge(111) at Low to Room Temperatures During Island Formation | Session 137: Thin Film Growth and Processing |
| 1808 | On the crystal growth and magnetism of Fe on MgO and MgAl2O4 | Ravensburg, Anna; Pálsson, Gunnar; Hjörvarsson, Björgvin; Kapaklis, Vassilios | We report on the epitaxial growth of thin Fe layers on single-crystalline MgAl 2O 4 substrates. | Session 137: Thin Film Growth and Processing |
| 1809 | Design and Engineering of Gibbs Free Energy for Heterostructure Nano-Bonding™ of Piezo-Electric Crystals to Si-based materials at T < 500 K | Sahal, Mohammed; Elison, Abbie; Prakash, Shefali; Swaminathan, Srivatsan; Rane, Riley; Baker, Brian; Balasooriya, Thilina; Peng, Wesley; Gurijala, Aashi; Suresh, Nikhil; Puglisi, Lauren; Culbertson, Robert; Herbots, Nicole | This work uses RT Nano-Bonding™ [1] to bond piezo-electrics to Si via Surface Energy Engineering (SEE). | Session 137: Thin Film Growth and Processing |
| 1810 | An efficient numerical method for constructing heterojunctions between two crystal lattices having the same in-plane lattice parameter ratio | Lee, Weon-Gyu; Lee, Jung-Hoon | Here we propose a new numerical method for efficiently constructing heterojunctions between two different crystal lattices having the same in-plane lattice parameter ratio such as a hexagonal graphene-hexagonal MoS 2 heterostructure. | Session 137: Thin Film Growth and Processing |
| 1811 | The competition of phase transitions and growth in thin films | Werkovits, Anna; Cartus, Johannes; Hörmann, Lukas; Jeindl, Andreas; Hofmann, Oliver T. | In this work, we predict under which conditions thermodynamically stable structures form and when metastable structures are likely to form for the model system tetracyanoethylene (TCNE) on Cu(111). | Session 137: Thin Film Growth and Processing |
| 1812 | Electrochemical Deposition of Mn+3 rich δ-MnO2 on Epitaxial Graphene-Silicon Carbide Substrates for Selective Gas Sensing | Pedowitz, Michael; Kim, Soaram; Uppalapati, Balaadithya; Khan, Digangana; Bayram, Ferhat; Koley, Goutam; Daniels, Kevin | We confirmed this by constructing a four-contact gas sensor from the resulting heterostructure, which demonstrated a high selectivity towards nitrogen-based gases and an enhanced response/recovery time. | Session 137: Thin Film Growth and Processing |
| 1813 | Kinetic Processes and surfactant design of Group I elements on CZTS (1\bar1\bar2\bar) surface | Bao, Kejie; Liu, Haolin; Tse, Kinfai; Zhu, Junyi | We used first principle calculations to investigate the kinetic processes on CZTS (1\bar1\bar2\bar) surface involving Group I elements, including Na, K, and Cs, to demonstrate their surfactant effects. | Session 137: Thin Film Growth and Processing |
| 1814 | Evolution of metastable structures on bimetallic surfaces from microscopy and machine-learning molecular dynamics | Lim, Jin Soo; Vandermause, Jonathan; van Spronsen, Matthijs; Musaelian, Albert; Xie, Yu; Sun, Lixin; O’Connor, Christopher; Egle, Tobias; Molinari, Nicola; Florian, Jacob; Duanmu, Kaining; Madix, Robert; Sautet, Philippe; Friend, Cynthia; Kozinsky, Boris | We develop and perform accelerated machine-learning molecular dynamics, followed by automated mechanistic characterization, to discover surface restructuring events in an unbiased fashion, including Pd-Ag place exchange and Ag pop-out. | Session 137: Thin Film Growth and Processing |
| 1815 | Atomic description of the atomic layer deposition of diethylzinc and water on carboxyl functionalized carbon nanotubes: a first principle study. | Paez Ornelas, José Israel; Fernández Escamilla, Hector Noé; Borbón-Nunez, Hugo Alejandro; Tiznado, Hugo; Takeuchi, Noboru; Guerrero Sanchez, Jonathan | In this work, we describe -at the atomic level- the full reaction mechanism involved in the formation of a hybrid inorganic ZnO/CNT structure. | Session 137: Thin Film Growth and Processing |
| 1816 | Tuning the phase structure of multicomponent PVD glasses by controlling surface mobility | Fiori, Marie; Bagchi, Kushal; Schneider, Sebastian; Chen, Zhenxuan; Yu, Lian; Toney, Michael; Ediger, Mark | Using GIWAXS and GISAXS, we find that we can control the distribution of each material within the PVD glass by controlling the deposition conditions. | Session 137: Thin Film Growth and Processing |
| 1817 | Superhydrophobicity induced by CO2 plasma treatment of Magnesium | Yeom, Sinchul; Jang, Gyoung Gug; Yoon, Mina | Here we report a new protective coating approach by an atmospheric, room temperature CO 2 plasma (CO 2-AP) technique. | Session 137: Thin Film Growth and Processing |
| 1818 | Mechanism of Stacking Fault Formation in Metal(100) Heteroepitaxial Growth | Khatri, Indiras; Sabbar, Ehsan; Shim, Yunsic; Amar, Jacques | In the case of 4% compressive strain we find that SF formation occurs with a morphology very similar to that found experimentally in Cu/Ni(100) growth. | Session 137: Thin Film Growth and Processing |
| 1819 | Epitaxial growth and surface characterization of TiO2 anatase | Sharma, Shrinkhala; Ren, Zheng; Li, Hong; Zhao, He; Zeljkovic, Ilija | We study the step-by-step formation of anatase phase of TiO 2 grown on SrTiO 3 (001) using plasma-assisted molecular beam epitaxy (MBE) growth, and explore the effects of growth temperature, substrate choice and lattice mismatch on the growth pattern. | Session 137: Thin Film Growth and Processing |
| 1820 | Tuning the band structure of monolayer WTe2 using back-gating in STM | Maximenko, Yulia; Chang, Yueqing; Hirsbrunner, Mark; Hughes, Taylor; Wagner, Lucas; Madhavan, Vidya | Along with topographical images, we present scanning tunneling spectroscopy of monolayer islands, performed while tuning the out-of-plane electric field and carrier concentration. | Session 138: Topological Insulators: Experiment |
| 1821 | Terahertz conduction of SmB6 thin films and superconducting SmB6/YB6 heterostructures | Stensberg, Jonathan; Han, Xingyue; Lee, Seunghun; Paglione, Johnpierre; Takeuchi, Ichiro; Wu, Liang | Here, we investigate via time domain terahertz spectroscopy the AC conduction of SmB 6 thin films and heterostructures of SmB 6 and the superconductor YB 6. | Session 138: Topological Insulators: Experiment |
| 1822 | Helical spin texture of Bi doped PbSb2Te4 topological insulator | Hattori, Yuya; Tokumoto, Yuki; Sagisaka, Keisuke; Edagawa, Keiichi | In this study, we investigated the surface electronic properties of Bi doped PbSb 2Te 4 by STM. | Session 138: Topological Insulators: Experiment |
| 1823 | Gate field effects on the topological insulator BiSbTeSe2 interface | Liu, Shuanglong; Xu, Yang; Wang, Yun-Peng; Chen, Yong; Fry, James; Cheng, Hai-Ping | Inspired by experimental efforts, we study interfacial processes between two slabs of BiSbTeSe2 (BSTS) via first-principles calculations. | Session 138: Topological Insulators: Experiment |
| 1824 | Modulation of surface states in Sb2Te3/Bi2Te3 topological insulator heterostructures | Mota Pereira, Vanda; Wu, Chi-Nan; Tjeng, Liu; Altendorf, Simone | Here we study the very promising approach of interfacing two TIs, namely Bi 2Te 3 and Sb 2Te 3. | Session 138: Topological Insulators: Experiment |
| 1825 | Comparative Study of MBE Grown Epitaxial Bi2Te3 On Various Standard Substrates | Bhardwaj, Archit; Suri, Dhavala; Raman, Karthik | Here, we show high quality epitaxial growth of Bi 2Te 3 on a variety of substrates (sapphire, STO, GaAs and SiO 2) and thereby compare the crucial parameters in terms of film quality such as mobility, carrier concentration etc. | Session 138: Topological Insulators: Experiment |
| 1826 | Observation of symmetry-protected zero modes in topolectrical circuits | Yang, Huanhuan; Li, Zhixiong; Liu, Yuanyuan; Cao, Yunshan; Yan, Peng | Here, we present an experimental observation of second-order corner states characterized by the Z 3 Berry phase in topolectrical circuits. | Session 138: Topological Insulators: Experiment |
| 1827 | Observation of Flat Frequency Bands at Open Edges and Antiphase Boundary Seams in Topological Mechanical Metamaterials | Qian, Kai; Zhu, Linghua; Ahn, Keun Hyuk; Prodan, Camelia | In this talk, we report the observation of the flat frequency bands of the topological origin at open edges and antiphase boundary seams in mechanical metamaterials [1], as predicted by the recent theoretical studies on a two-dimensional chiral Hamiltonian [2]. | Session 138: Topological Insulators: Experiment |
| 1828 | Pb-doped p-type Bi2Se3 thin films via interfacial engineering | Moon, Jisoo; Huang, Zengle; Wu, Weida; Oh, Seongshik | Here, by utilizing an interface engineering, we achieved the first Pb-doped p-type Bi 2Se 3 thin films. | Session 138: Topological Insulators: Experiment |
| 1829 | Z-dependent spin-momentum locking in monolayer 1T’-WTe2 | Maximenko, Yulia; Chang, Yueqing; Chen, Guannan; Hirsbrunner, Mark; Swiech, Waclaw; Hughes, Taylor; Wagner, Lucas; Madhavan, Vidya | We present computational results of the electronic structure of monolayer 1T’-WTe 2 with the effect of gating, using a tight-binding model derived from the Wannierised Kohn-Sham orbitals computed from density functional theory. | Session 138: Topological Insulators: Experiment |
| 1830 | Electronic structure of a weak topological insulator RhBi2 | Lee, Kyungchan; Lange, Gunnar; Wang, Lin-Lin; Kuthanazhi, Brinda; Victa Trevisan, Thais; Jo, Na Hyun; Schrunk, Benjamin; Orth, Peter; Slager, Robert-Jan; Canfield, Paul; Kaminski, Adam | We report a study of electronic structure of triclinic RhBi 2 using laser based angle resolved photoemission spectroscopy (ARPES), DFT calculations, and effective model. | Session 138: Topological Insulators: Experiment |
| 1831 | Signatures of Higher Order Topology in S-Bi-S Junctions | Bernard, Alexandre; Kasumov, Alik; Deblock, Richard; Peng, Yang; Oreg, Yuval; von Oppen, Felix; Bouchiat, Helene; Gueron, Sophie | In this talk, I will present ongoing works on ring-shaped bismuth samples probed with low frequency superconducting switching statistics analysis. | Session 138: Topological Insulators: Experiment |
| 1832 | Influence of post-deposition annealing on the transport properties of sputtered Bi2Se3 thin films | Sapkota, Yub Raj; Mazumdar, Dipanjan | In this work, we demonstrate that post-deposition annealing temperature is also effective in controlling the carrier concentration of Bi 2Se 3 thin films. | Session 138: Topological Insulators: Experiment |
| 1833 | Gate-tunable spin galvanic effect in topological insulator–graphene heterostructures | Khokhriakov, Dmitrii; Dash, Saroj | Here we integrate topological insulator (TI) in van der Waals heterostructures with graphene to engineer proximity-induced spin-orbit coupling (Science Advances, 4, 9, eaat9349 (2018)) and charge-spin conversion (Nature Communication 11, 3657 (2020)) phenomena. | Session 138: Topological Insulators: Experiment |
| 1834 | Thermal and electrical transport behavior of topological insulator ZrTe5 | Zhu, Junbo; Lee, Changmin; Suzuki, Takehito; Fang, Shiang; Gedik, Nuh; Checkelsky, Joseph | We report a study of electric, thermoelectric, thermodynamic measurements and angle resolved photoemission spectroscopy (ARPES) of single crystals of topological insulator candidate ZrTe 5 grown by both chemical vapor transport and flux method. | Session 138: Topological Insulators: Experiment |
| 1835 | Measurement of the Planckian scattering rate | Grissonnanche, Gael; Fang, Yawen; Legros, Anaelle; Verret, Simon; Laliberte, Francis; Collignon, Clement; Ataei, Amirreza; Dion, Maxime; Zhou, Jianshi; Graf, David; Lawler, Michael; Goddard, Paul; Taillefer, Louis; Ramshaw, Brad | Measurement of the Planckian scattering rate | Session 139: Strange Metals and Novel Transport Properties |
| 1836 | Strange metal solution of the Hubbard model | Kim, Aaram; Werner, Philipp; Kozik, Evgeny | Strange metal solution of the Hubbard model | Session 139: Strange Metals and Novel Transport Properties |
| 1837 | Strange semimetal dynamics in SrIrO3 | Sen, Kaushik; Fuchs, Dirk; Heid, Rolf; Kleindienst, Kai; Wolff, Karsten; Schmalian, Joerg; Le Tacon, Matthieu | Here, we report on a polarized Raman scattering study of semimetallic SrIrO3. | Session 139: Strange Metals and Novel Transport Properties |
| 1838 | First-principles calculation of the Hall coefficient using the Ong construction | Reyes-Lillo, Sebastian; Muñoz, Francisco; Brahlek, Matthew | We implement Ong’s relationship within the Pyprocar software suite (Comput. | Session 139: Strange Metals and Novel Transport Properties |
| 1839 | Revealing a large temperature dependence of the Hall effect in the “non-metallic” metal FeCrAs | Lau, Benny; Wu, Wenlong; Julian, Stephen | Here, we report the temperature dependence of the classical Hall effect in FeCrAs. | Session 139: Strange Metals and Novel Transport Properties |
| 1840 | Exciton condensation in incoherent semimetals. | Jose, Geo; Uchoa, Bruno | In the normal state, the model has near conformal symmetry and describes an incoherent semimetal with sublinear T 2/5 temperature dependence of the resistivity. | Session 139: Strange Metals and Novel Transport Properties |
| 1841 | Diamagnetic-like response from localized heating of a paramagnetic material | Maeno, Yoshiteru; Mattoni, Giordano; Yonezawa, Shingo | In the study of material properties out-of-equilibrium, the non-equilibrium steady states (NESS) induced by electric current are an appealing research direction where unconventional states may emerge. | Session 139: Strange Metals and Novel Transport Properties |
| 1842 | Bond stretching branch dispersions in undoped La2CuO4 calculated using LDA+U | Sterling, Tyler; Holder, Aaron; Reznik, Dmitry | In this work, we employ the Hubbard-U correction in the LDA+U method to calculate the dispersions for a range of U values. | Session 139: Strange Metals and Novel Transport Properties |
| 1843 | Linear in temperature resistivity and the many-body Kubo formula | Changlani, Hitesh; Patel, Aavishkar | We address the puzzle of linear in temperature (T-linear) resistivity seen in non-Fermi liquid phases that occur in several condensed matter systems. | Session 139: Strange Metals and Novel Transport Properties |
| 1844 | Bad metallic transport in geometrically frustrated models | Mendez-Valderrama, Juan; Chowdhury, Debanjan | In this work, we study a family of geometrically frustrated models with an interaction scale far exceeding the single-particle bandwidth. | Session 139: Strange Metals and Novel Transport Properties |
| 1845 | Electron Jamming and the Unusual Charge Response of Strange Metals | Chowdhury, Debanjan; Liarte, Danilo; Sethna, James; Thornton, Stephen | In this work, we investigate the bosonic collective modes and the particle-hole excitations of strange metals by making an analogy to lattices falling apart across a “jamming” transition [2]. | Session 139: Strange Metals and Novel Transport Properties |
| 1846 | Hydrodynamic electron transport near charge neutrality | Li, Songci; Levchenko, Alex; Andreev, Anton | We develop theory of hydrodynamic electron transport in a long-range disorder potential for conductors in which the underlying electron liquid lacks Galilean invariance. | Session 139: Strange Metals and Novel Transport Properties |
| 1847 | The Lorenz ratio of an impure compensated metal at intermediate temperatures | Lee, Woo-Ram; Michaeli, Karen; Schwiete, Georg | Motivated by these findings, we study transport properties of compensated metals in the presence of electron-electron collisions and electron-impurity scattering. | Session 139: Strange Metals and Novel Transport Properties |
| 1848 | Monte Carlo Simulations of non-linear evolution of materials resistivity | Hancock, Steven; Landau, David; Abate, Yohannes | We developed an experimentally motivated Monte Carlo simulation to calculate the conductance materials and the effect of charged dopant concentration and applied this method to investigate the non-linear evolution of the resistivity with annealing time in oxygen deficient thin films. | Session 139: Strange Metals and Novel Transport Properties |
| 1849 | Quasiparticle and Non-Quasiparticle Transport in Doped Quantum Paraelectrics | Kumar, Abhishek; Yudson, Vladimir; Maslov, Dmitrii | We analyze charge transport in a QP within a model of electrons coupled to a soft transverse optical (TO) mode via a two-phonon mechanism. | Session 139: Strange Metals and Novel Transport Properties |
| 1850 | The variational and diagrammatic quantum Monte Carlo approach to the many-electron problem | Chen, Kun; Haule, Kristjan | We apply it to the quintessential problem of solid-state, the uniform electron gas, which is at the heart of the density functional theory success in describing real materials, yet it has not been adequately solved for over 90 years. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1851 | Stripes, Antiferromagnetism, and the Pseudogap in the Doped Hubbard Model at Finite Temperature | Wietek, Alexander; He, Yuan-Yao; White, Steven; Georges, Antoine; Stoudenmire, Edwin | In this talk I will present some of our recent results applying this technique in the strong coupling, low-temperature and finite hole-doping regime. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1852 | Quasiparticle Interaction in the Three-dimensional Uniform Electron Gas | Wang, Bao-Zong; Hou, Pengcheng; Deng, Youjin; Haule, Kristjan; Chen, Kun | We establish the quasiparticle interaction in the three-dimensional uniform electron gas using a controlled effective field theory approach—the recently developed variational diagrammatic Monte Carlo method. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1853 | Towards Strongly Correlated 2D Systems of Ultracold Dipolar Sodium-Cesium Molecules | Stevenson, Ian; Bigagli, Niccolo’; Lam, Aden; Warner, Claire; Will, Sebastian | In this talk, we report on the production of overlapping Bose-Einstein condensates of 2 x 10 5 sodium atoms and 2 x 10 4 cesium atoms, the exploration of Feshbach resonances in this novel quantum gas mixture, and our pathway to prepare NaCs molecules in their absolute ground state for the study of many-body physics in two dimensions. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1854 | A cavity-QED simulator of dynamical phases of a BCS superconductor | Barberena, Diego; Lewis-Swan, Robert; Cline, Julia; Young, Dylan; Thompson, James; Rey, Ana Maria | In this work we describe a way to simulate dynamical phases of a BCS superconductor using an ensemble of cold atoms confined in an optical cavity. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1855 | Fourth- and Fifth-Order Virial Coefficients from Weak Coupling to Unitarity | Hou, Yaqi; Drut, Joaquin | At finite temperature, one widely used tool to study the thermodynamics of such a system is the virial expansion, whose spirit is to encode the many-body physics into a series of n-body contributions, captured by the virial coefficients b n. Implementing a new nonperturbative analytical method, featuring only systematic uncertainties, we have calculated the b n of a Fermi gas from weak coupling to the unitary point. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1856 | Quantum Monte Carlo insights into the properties of the polarized Fermi gas around unitarity | Richie-Halford, Adam; Drut, Joaquin; Bulgac, Aurel | To shed light on this issue, we extracted several quantities of crucial importance at and around the unitary limit, namely the odd-even staggering of the total energy, the spin susceptibility, the pairing correlation function, the condensate fraction, and the critical temperature Tc, using a nonperturbative, constrained-ensemble quantum Monte Carlo algorithm. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1857 | Two-particle properties within finite-temperature self-consistent one-particle Green’s function methods: theory and application | Pokhilko, Pavel; Zgid, Dominika | Finite-temperature Green’s function methods, such as GF2 and GW, provide a route to model many-body electronic structure of materials at finite temperature. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1858 | Coupled one-dimensional chains in two-dimensional dipolar bosons | Cinti, Fabio; Boninsegni, Massimo | We present the results of computer simulations at low temperature of a two- dimensional system of dipolar bosons, with dipole moments aligned at an arbitrary angle with respect to the direction perpendicular to the plane. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1859 | The crossover from BEC to BCS in the interacting 2D Fermi gas | Ramachandran, Shasta; Jensen, Scott; Alhassid, Yoram | We investigate the thermodynamics of the strongly interacting 2D Fermi system in the crossover between the Bose-Einstein condensate (BEC) and the Bardeen-Cooper-Schrieffer (BCS) limits using finite-temperature auxiliary-field quantum Monte Carlo (AFMC) methods in the canonical ensemble. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1860 | Continuum limit results for the unitary Fermi gas and its pseudogap regime | Jensen, Scott; Gilbreth, Christopher; Alhassid, Yoram | We present large-scale simulation results in the continuum limit for the condensate fraction and model-independent pairing gaps of the UFG across the superfluid phase transition. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1861 | Diagrammatic Monte Carlo for the Hubbard Model | Ferrero, Michel; Simkovic, Fedor; Rossi, Riccardo; Garioud, Renaud; Werner, Félix; Van Houcke, Kris; Spada, Gabriele | In this talk, I will present recent developments of the diagrammatic Monte Carlo method applied to the Hubbard model. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1862 | Microscopic evolution of doped Mott insulators from polaronic to Fermi liquid regime | Bourgund, Dominik; Koepsell, Joannis; Sompet, Pimonpan; Hirthe, Sarah; Chalopin, Thomas; Bojovic, Petar; Bohrdt, Annabelle; Wang, Yao; Grusdt, Fabian; Demler, Eugene; Salomon, Guillaume; Gross, Christian; Hilker, Timon; Bloch, Immanuel | We study this regime by preparing a cold fermionic gas in an optical lattice at a temperature around the superexchange energy. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1863 | Tracking the Footprints of Spin Fluctuations: A Multi-Method, Multi-Messenger Approach to the Weak-coupling Regime of the Two-Dimensional Hubbard Model | Schaefer, Thomas; Wentzell, Nils; Simkovic, Fedor; He, Yuan-Yao; Hille, Cornelia; Klett, Marcel; Eckhardt, Christian; Arzhang, Behnam; Harkov, Viktor; Le Régent, François-Marie; Wang, Yan; Kim, Aaram; Kozik, Evgeny; Stepanov, Evgeny; Kauch, Anna; Andergassen, Sabine; Hansmann, Philipp; Rohe, Daniel; Vilk, Yuri; LeBlanc, James; Zhang, Shiwei; Tremblay, Andre-Marie; Ferrero, Michel; Parcollet, Olivier; Georges, Antoine | Despite its simplicity, the Hubbard model presents a formidable challenge to computational and theoretical methods alike. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1864 | Pressure, Negative Thermal Expansion and d-wave Pair Fluctuations in the 2D t-J Model | Putikka, William | The high temperature series for the entropy of the 2D t-J model has been calculated to 12th order in β. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1865 | Exploration of coupled cluster Green’s function in self-energy embedding theory | Shee, Avijit; Zgid, Dominika | We have explored previously developed Coupled Cluster Green’s Function (CCGF) (Shee, Zgid JCTC2019) in two different contexts : a) As a weak correlation method in a QM-QM embedding method, Self Energy embedding Theory (SEET). | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1866 | The Tensor Network Python (TeNPy) Library | Hauschild, Johannes; Pollmann, Frank; Zaletel, Michael | We present TeNPy [1], a Python library for the simulation of strongly correlated quantum many body systems with the ansatz of tensor networks, and in particular matrix product states (MPS). | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1867 | Impurity in a quantum gas: exact diagonalization meets Bethe Ansatz | Burovski, Evgeni; Gamayun, Oleksandr; Lychkovskiy, Oleg | We examine stationary state properties of an impurity particle injected into a one-dimensional quantum gas. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1868 | Recent progress in computational studies of the two-dimensional Hubbard model | Zhang, Shiwei | As a fundamental model in quantum many-body physics, the Hubbard model has presented a tremendous challenge, with multiple competing tendencies and its properties often the outcome of a delicate balance of their competition and coexistence. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1869 | Spin, charge and pairing correlations in a bilayer Hubbard model with an incipient band | Karakuzu, Seher; Maier, Thomas; Johnston, Steven | In particular, we describe how its pairing correlations evolve as one of the bands becomes incipient, and how this behavior is linked to changes in the dynamical spin and charge fluctuations. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1870 | Current anomalies, reservoir discretizations, and extended-reservoir quantum transport simulations | Elenewski, Justin; Wojtowicz, Gabriela; Rams, Marek; Zwolak, Michael | One powerful approach combines matrix product states with extended reservoirs – an open system methodology where relaxation maintains a chemical potential or temperature drop. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1871 | Theory of a benzene transistor: symmetry, strong correlations and quantum interference | Sen, Sudeshna; Mitchell, Andrew | In this talk I examine the interplay of symmetry and Kondo effect in a benzene single electron transistor using a combination of numerical renormalization group and generalised Schrieffer Wolff transformation [1]. | Session 140: Precision Many-Body Physics: Model Systems and Hamiltonians |
| 1872 | T-linear resistivity and Planckian dissipation in cuprates | Legros, Anaelle | I will present high-field magneto-transport measurements of two hole-doped cuprates, near their pseudogap critical point p*, supporting that T-linear resistivity as T→0 is a generic property of cuprates, associated with a universal scattering rate. | Session 141: Strange Metal Physics |
| 1873 | Theories of Planckian dissipation in strange metals | Patel, Aavishkar | I will describe two types of exactly solvable effective field theories, constructed along the lines of the Sachdev-Ye-Kitaev models, that can describe such universal behavior. | Session 141: Strange Metal Physics |
| 1874 | Anomalous Dimensions for Conserved Currents in Strange Metals | Phillips, Philip; La Nave, Gabriele; Limtragool, Kridsanaphong | I will describe this effect and its potential impact for unlocking the secret of the strange metal in the cuprates. | Session 141: Strange Metal Physics |
| 1875 | Incoherent strange metal sharply bounded by the pseudogap critical doping in Bi2212 | Chen, Sudi; Hashimoto, Makoto; He, Yu; Song, Dongjoon; Xu, Kejun; He, Junfeng; Devereaux, Thomas; Eisaki, Hiroshi; Lu, Donghui; Zaanen, Jan; Shen, Zhixun | In this talk, I will present a comprehensive angle-resolved photoemission study of its spectral function in Bi2212 [1]. | Session 141: Strange Metal Physics |
| 1876 | Investigation of strange metallicity from numerical simulations of the doped Hubbard model | Huang, Edwin; Wang, Wen; Ding, Jixun; Moritz, Brian; Devereaux, Thomas | The Hubbard model represents a minimal starting point for modeling strongly correlated systems. | Session 141: Strange Metal Physics |
| 1877 | Theory of the nonlinear susceptibility of layered superconductors: application to strontium ruthenate | Chen, Fei; Pelc, Damjan; Greven, Martin; Fernandes, Rafael | Here, we present a phenomenological theoretical model for the nonlinear susceptibility of layered superconductors. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1878 | Optical excitation of the Higgs mode in superconductors | Bellitti, Matteo; Laumann, Christopher; Spivak, Boris | We consider the dynamical excitation of the Higgs/amplitude mode in superconductors by quasiparticle avalanche following optical excitation. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1879 | Non-BCS Type Enhancement of Superconductivity from Long-Range Photon Fluctuations | CHAKRABORTY, AHANA; Piazza, Francesco | The cavity-mediated electron-electron interactions are long range, which has two main effects: firstly, within the standard BCS-type pairing mediated by adiabatic photons, the superconducting critical temperature depends polynomially on the coupling strength, instead of the exponential dependence; secondly, as we show here, the effect of photon fluctuations is significantly enhanced. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1880 | Quantum criticality inside the field-induced metallic state in an amorphous superconducting thin film | Ienaga, Koichiro; Hayashi, Taiko; Tamoto, Yutaka; Kaneko, Shin-ichi; Okuma, Satoshi | To uncover the critical behavior associated with the SMIT, we conducted Nernst measurements in an amorphous Mo xGe 1-x thin film down to 0.1 K[4]. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1881 | Sample Rotation as a New Method for Identifying the FFLO State in λ-(BETS)2GaCl4 | Laramee, Brett; Ghimire, Raju; Alipour, Alireza; Bales, Calvin; Coniglio, William; Agosta, Charles; Schlueter, John; Kobayashi, Akiko | We will present rf penetration depth measurements on the quasi-2D organic superconductor λ-(BETS) 2GaCl 4 (BETS) using a tunnel diode oscillator. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1882 | Ab initio study of possible metastable occupation of tetrahedral sites in Palladium Hydride compounds | Meninno, Antonella; Errea, Ion | In this work we present first principles calculations including anharmonic effects within the stochastic self-consistent harmonic approximation (SSCHA) [2] in order to unveil the possible existence of dynamically stable structures with full or partial occupation of tetrahedral sites, which may be metastable. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1883 | Strain as a Tuning Parameter of the Superconducting Transition in Nb-doped SrTiO3 | Topping, Craig; Cole, Mari; Panja, Soumendra; Rost, Andreas | Here we will report on magnetotransport studies on strained single crystals of SrTi 1-xNb xO 3 in the underdoped, optimally doped and overdoped regimes with a superconducting dome with tensile strain observed when underdoped. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1884 | Phase Diagram of Ternary Carbon-Sulfur-Hydrogen System up to 300 GPa | Paul, Reetam; Hu, Suxing; Karasiev, Valentin; Dias, Ranga | We present a phase diagram spanning from 30 to 300 GPa derived from pure thermodynamic considerations, inclusive of the zero-point effect which is significant because of the presence of hydrogen. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1885 | Retention of high-pressure-induced superconducting and non-superconducting phases in solids at ambient | Chu, Paul C. W.; Deng, Liangzi; Wu, Zheng; Bontke, Trevor; Huyan, Shuyuan; Gooch, Melissa; Dahal, Rabin; Gao, Bin; Chen, Tong; Dai, Pengcheng | To raise the T c has been one of the main driving forces in the extensive high temperature superconductivity research for more than three decades. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1886 | Disorder perturbations of topological superconductor surface fluids: Semiclassical geodesic approach | Davis, Seth; Foster, Matthew | We study the geometric properties of these manifolds, which are dominated by curvature singularities that differ starkly from our own cosmology. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1887 | Multi-component superconducting pairing and possible vestigial order in half-Heusler compounds | Hecker, Matthias; Willa, Roland; Schmalian, Joerg | For each multi-component pairing state, we classify all possible ground states and decompose them according to the involved broken symmetries. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1888 | Collective modes in disordered s-wave superconductors | Samanta, Abhisek; Das, Anirban; Trivedi, Nandini; Sensarma, Rajdeep | We investigate the effect of disorder and temperature on the two particle spectral function for s-wave superconductors, focusing on the evolution of the low energy collective Higgs and phase modes. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1889 | Universal short-range orthorhombic correlations in two cuprate superconductors | Pelc, Damjan; Spieker, Richard; Anderson, Zachary; Krogstad, Matthew; Biniskos, Nikolaos; Bielinski, Nina; Yu, Biqiong; Sasagawa, Takao; Chaviere, Ludivine; Dosanjh, Pinder; Liang, Ruixing; Bonn, Douglas; Damascelli, Andrea; Liu, Yaohua; Osborn, Raymond; Greven, Martin | We carried out diffuse X-ray and neutron scattering experiments on two cuprates – La 2-xSr xCuO 4 and Tl 2Ba 2CuO 6+δ – and observed short-range orthorhombic correlations in wide doping and temperature ranges, including compositions that maintain tetragonal average structure at low temperature. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1890 | Superconducting properties near structural instabilities in LaH10 | Sun, Dan; Minkov, Vasily S; Mozaffari, Shirin; Chariton, Stella; Prakapenka, Vitali; Eremets, Mikhail; Balicas, Luis; Balakirev, Fedor | We established key superconducting quantities of LaH 10 under high magnetic fields, including upper critical fields and coherence lengths. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1891 | Near-filed heat transfer in high-Tc superconductors | Esquivel-Sirvent, Raul; Castillo-López, Shunashi; Pirruccio, Giuseppe; Villarreal, Carlos | In this work, we present a theoretical study of the radiative heat transfer between two YBa_2Cu_3O_6.95 (YBCO) slabs. | Session 142: Superconductivity: Fluctuation -Thermodynamic and Nonequilibrium phenomena |
| 1892 | Exceptional Topological Insulators | Denner, Michael; Skurativska, Anastasiia; Schindler, Frank; Fischer, Mark; Thomale, Ronny; Bzdusek, Tomas; Neupert, Titus | In this work we search for a non-Hermitian analogue of the 3D TI: what could the anomalous non-Hermitian surface states be which necessitate a 3D topological bulk embedding? | Session 143: Non-Hermitian Topology |
| 1893 | Exceptional topological insulators with crystal symmetries | Neupert, Titus; Schindler, Frank; Denner, Michael; Brzezinska, Marta; Vecsei, Pascal; Bold, Anar; Bzdusek, Tomas | I will explain how this non-Hermitian topological phase can be inferred using symmetry-indicators of the bulk Hamiltonian. | Session 143: Non-Hermitian Topology |
| 1894 | Entanglement properties in topological non-Hermitian systems and non-unitary conformal field theories | Chang, Po-Yao | For the non-Hermitian Su-Schrieffer-Heeger (SSH) model with parity and time-reversal symmetry (PT-symmetry), we find the entanglement entropy scaling at the critical point has a logarithmic scaling with corresponding central charge c=-2. | Session 143: Non-Hermitian Topology |
| 1895 | Generalized Brillouin zone of non-Hermitian continuum systems | Hu, Yu-Min; Huang, Yin-Quan; Xue, Wen-Tan; Wang, Zhong | Here, we generalize the GBZ theory to continuum systems and demonstrate its applications. | Session 143: Non-Hermitian Topology |
| 1896 | Non-Bloch PT symmetry breaking in two-dimensional non-Hermitian bands | Song, Fei; Wang, Hongyi; Wang, Zhong | From a topological perspective, the non-Bloch band theory has been introduced to predict non-Hermitian topological edge states. | Session 143: Non-Hermitian Topology |
| 1897 | Non-Hermitian SSH3 model in 1D and Hopf model in 3D | Chien, Chih-Chun; He, Yan | We present non-Hermitian generalizations of the SSH3 model with period-3 patterns of the hopping coefficients in 1D and the two-band Hopf model in 3D. | Session 143: Non-Hermitian Topology |
| 1898 | Exceptional non-Hermitian topological edge mode and its application to active matter | Sone, Kazuki; Ashida, Yuto; Sagawa, Takahiro | Here, we reveal that gapless edge modes can be protected by topology and symmetry of the band structure of edge modes themselves around the branchpoint singularity of exceptional points [1]. | Session 143: Non-Hermitian Topology |
| 1899 | Topological Duality in Floquet and Non-Hermitian Dynamical Anomalies: Extended Nielsen-Ninomiya Theorem and Chiral Magnetic Effect | Bessho, Takumi; Sato, Masatoshi | Here, we present an extension of the Nielsen-Ninomiya theorem that is valid even in the presence of the bulk quantum anomaly. | Session 143: Non-Hermitian Topology |
| 1900 | Driving topological insulators out of equilibrium: deviations from periodicity | Seshadri, Ranjani; Pereg-Barnea, Tami | In this work, we study the conductivity – both longitudinal and transverse – of a two-dimensional TI to an external time-dependent perturbation in the form of a short pulse (i.e. a ‘periodic’ drive with a Gaussian envelope) and compare it with the response of the same system to a Floquet (i.e., periodic) drive. | Session 143: Non-Hermitian Topology |
| 1901 | Direction Depended Transport in a Hamiltonian Ratchet induced by a time-Dependent Dissipative Impurity | Fedorova, Zlata; Dauer, Christoph; Sidronenko, Anna; Eggert, Sebastian; Kroha, Johann; Linden, Stefan | In this work we both theoretically and experimentally study directed transport in a fast Hamilton ratchet and show that a time-depended dissipative impurity can be used as a direction depended filter. | Session 143: Non-Hermitian Topology |
| 1902 | Z2 topological quench dynamics | Chiu, Pok-Man; Chang, Po-Yao | We study a quantum quench protocol with Z2 topology in 3+1 dimensions. | Session 143: Non-Hermitian Topology |
| 1903 | Topological delocalization in two-dimensional quantum walks | Asboth, Janos; Mallick, Arindam | We calculate these invariants by detecting edge states. | Session 143: Non-Hermitian Topology |
| 1904 | Nonassociativity in Weyl semimetals | Parashar, Pathak Shubham; Wu, Congjun | We investigate such violations of associativity in various condensed matter systems, in particular Weyl semimetals and Floquet systems. | Session 143: Non-Hermitian Topology |
| 1905 | Non-Hermitian fractional quantum Hall states in open quantum systems | Tsuneya, Yoshida; Kudo, Koji; Katsura, Hosho; Hatsugai, Yasuhiro | We report that open quantum systems with two-body loss host non-Hermitian fractional quantum Hall states (nHFQH) with 1/3 filling when the jump term is negligible[1]. | Session 143: Non-Hermitian Topology |
| 1906 | Open and closed boundary correspondence in non-reciprocal metamaterials | Ghatak, Ananya; Coulais, Corentin; Van Wezel, Jasper | We will discuss the theoretical inventories of such correspondences and demonstrate their experimental realizations in non-Hermitian metamaterials. | Session 143: Non-Hermitian Topology |
| 1907 | Hofstadter Topology: Complete Classification and Non-crystalline Projective Symmetries | Herzog-Arbeitman, Jonah; Song, Zhida; Regnault, Nicolas; Bernevig, Andrei | In this work, we show that when a magnetic field is added to an initially topological band structure, a wealth of possible phases emerges. | Session 144: Topological Insulators: Theory |
| 1908 | Quantum criticality in Hofstadter-Chern bands of graphene superlattices | Wang, Jian; Santos, Luiz | In this setting, we present an analytical framework to classify the hopping-tuned topological critical points in graphene superlattices subject to a background external magnetic field, which are characterized by multi-component Dirac fermions and large changes in Chern number, as opposed to conventional quantum Hall transitions. | Session 144: Topological Insulators: Theory |
| 1909 | Multicellularity of delicate topological insulators | Nelson, Aleksandra; Neupert, Titus; Bzdusek, Tomas; Alexandradinata, Aris | In this talk, I will present two classes of tight-binding models that are both delicate and multicellular. | Session 144: Topological Insulators: Theory |
| 1910 | 2N-rule: Searching topological phases and robust edge modes in carbon nanotubes | Hu, Chen; Guo, Hong | We theoretically report an explicit and robust scheme, 2N-rule, for systematically searching topological phases in CNTs of all diameters. | Session 144: Topological Insulators: Theory |
| 1911 | Topological magnetoelectric effect (TME) and quantum anomalous Hall effect (QAHE) of topological-insulator (TI) thin films | Pournaghavi, Nezhat; Pertsova, Anna; Canali, Carlo; MacDonald, Allan | We present a theoretical study of the two-dimensional (2D) surface states and orbital magnetoelectric response of TI thin films in which time-reversal symmetry is broken by magnetism at the surface. | Session 144: Topological Insulators: Theory |
| 1912 | Aperiodic and quasi-periodic dynamical quantum phase transitions in multi-band topological insulators | Sedlmayr, Nicholas | Here we will report on dynamical phase transitons in many-band one dimensional topological insulators which demonstrate curious quaisi-periodic, rather than periodic, dynamical phase transitions. | Session 144: Topological Insulators: Theory |
| 1913 | 2D to 3D crossover in topological insulators | Morice, Corentin; Kopp, Thilo; Kampf, Arno | We show analytically that the boundaries of these regions are topological phase transitions of particular significance, and allow one to fully predict the 3D topological invariants from finite-thickness information. | Session 144: Topological Insulators: Theory |
| 1914 | Fragile topology in line-graph lattices | Chiu, Christie; Ma, Da-Shuai; Song, Zhida; Bernevig, Andrei; Houck, Andrew | In this talk, I present these connections. | Session 144: Topological Insulators: Theory |
| 1915 | Spin-triplet excitonic states and electron-electron correlations on the Topological Insulator surface | Mishra, Sparsh; Yada, Keiji; Kobayashi, Akito; Tanaka, Yukio | Using Green’s function technique and numerical diagonalization of the equation we find the possible order parameters that describe the systems that retain their topological structure. | Session 144: Topological Insulators: Theory |
| 1916 | General Construction and Topological Classification of Perfectly Flat Bands | Calugaru, Dumitru; Chew, Aaron; Elcoro, Luis; Ma, Da-Shuai; Song, Zhida; Bernevig, Andrei | We present a generic technique to construct perfectly flat bands (FBs) from bipartite crystalline lattices (BCLs). | Session 144: Topological Insulators: Theory |
| 1917 | Finite-temperature spectroscopy of dirty helical Luttinger liquids | Hsieh, Tzu-Chi; Chou, Yang-Zhi; Radzihovsky, Leo | I will discuss a theory of finite-temperature momentum-resolved tunneling spectroscopy (MRTS) for disordered two-dimensional interacting topological-insulator edges. | Session 144: Topological Insulators: Theory |
| 1918 | A Bulk-Boundary Correspondence for 2D Fermionic Symmetry Protected Topological Phases | Kawagoe, Kyle; Levin, Michael | In this talk, we present a general method for solving this problem in the case of (2+1)D interacting Fermionic systems with internal (non-spatial) symmetries. | Session 144: Topological Insulators: Theory |
| 1919 | Transport signature of helical hinge states of quasi-one-dimensional topological insulators | Zhou, Yanfeng; Zhang, Fan | We examine the electronic behavior of their helical hinge states and predict unique signatures in transport experiment. | Session 144: Topological Insulators: Theory |
| 1920 | Engineering Topological Phases Guided by Statistical and Machine Learning Methods | Mertz, Thomas; Valenti, Roser | In this talk we will discuss our recent proposal [1] on a systematic statistical method supported by machine learning techniques that is capable of constructing topological models for a generic lattice without prior knowledge of the phase diagram. | Session 144: Topological Insulators: Theory |
| 1921 | Transport in high D-dimensional topological insulators models | LIMA, Leonardo | We study the longitudinal conductivity $\sigma^{reg}_{xx}(\omega)$ in the neighboring of the phase transition of the topological charge in topological insulators models in (4+1)-D dimensions [1-4] employing the Kubo formalism of the linear response theory [5-6]. | Session 144: Topological Insulators: Theory |
| 1922 | Magnetic impurities along the edge of a quantum spin-Hall insulator: realizing a one-dimensional AIII insulator | Fritz, Lars; Van Dalum, Gerwin; Ortix, Carmine | In this paper we construct a one-dimensional insulator with an approximate chiral symmetry belonging to the AIII class and discuss its properties. | Session 144: Topological Insulators: Theory |
| 1923 | Effect of molecular-scale perturbations on Plasmons in Topological Insulators | Guan, Yuling; Jiang, Zhihao; Haas, Stephan | We develop and apply a fully quantum mechanical approach to analyze the plasmonic excitation spectrum in the Su-Schrieffer-Heeger (SSH) model and its mirror symmetric(m-SSH) in the presence of molecule-scale perturbations. | Session 144: Topological Insulators: Theory |
| 1924 | Plasmons in Two-Dimensional Topological Insulators | Schloemer, Henning; Jiang, Zhihao; Haas, Stephan | We analyze collective excitations in models of two-dimensional topological insulators, revealing characteristic signatures that distinguish different topological regimes by their plasmonic response. | Session 144: Topological Insulators: Theory |
| 1925 | Second-order topological insulator under strong magnetic field | Levitan, Benjamin; Pereg-Barnea, Tami | We compare an effective surface theory to a full lattice model of the SOTI. | Session 144: Topological Insulators: Theory |
| 1926 | Fragility of time-reversal symmetry protected topological phases | McGinley, Max; Cooper, Nigel | In this talk, I will argue that phenomena protected by TRS are fundamentally unstable against coupling to their surroundings. | Session 144: Topological Insulators: Theory |
| 1927 | 3d topological insulator in Weyl semimetal in the presence of commensurate magnetic field | Abdulla, Md.; Das, Ankur; Rao, Sumathi; Murthy, Ganpathy | We study the effect of commensurate magnetic field in a time reversal broken 3d Weyl semimetal [1]. | Session 144: Topological Insulators: Theory |
| 1928 | Open quantum dot model based on 3D topological insulator nanowire | Saxena, Ruchi; Grosfeld, Eytan; de Graaf, Sebastian; Lindstrom, Tobias; Lombardi, Floriana; Ginossar, Eran | We propose a TINR geometry which can potentially confine the surface electronic states also in the second direction, along the TINR. | Session 144: Topological Insulators: Theory |
| 1929 | Toward Exact Bulk-boundary Correspondence for Zero-energy Corner States | Jung, Minwoo; Yu, Yang; Shvets, Gennady | We refine some of weakly established bulk-boundary correspondence regarding zero-energy corner states (ZCS) in two-dimensional (2D) crystalline insulators, and reveal that bulk polarization fails to be a relevant indicator of ZCSs. | Session 144: Topological Insulators: Theory |
| 1930 | Dynamic impurities in two-dimensional topological insulator edge states | Wozny, Simon; Leijnse, Martin; Erlingsson, Sigurdur | In an earlier work we investigated the effects of random, static, aligned magnetic impurities [1] on the spectrum and found that for fixed magnetic impurity strength the gap in the density of states (DOS) closes with rising potential strength. | Session 144: Topological Insulators: Theory |
| 1931 | Mapping rules from nodal line semimetal to topological crystalline insulator in face centered cubic lattice | Tateishi, Ikuma | We construct an effective model, which hosts two different nodal lines phases, and calculated mirror Chern numbers in it by introducing SOC. | Session 144: Topological Insulators: Theory |
| 1932 | The Landau levels of Euler insulator | Guan, Yifei; Yazyev, Oleg; Bouhon, Adrien | We propose an interpretation of the Landau level behaviour under the framework of Chern basis. | Session 144: Topological Insulators: Theory |
| 1933 | Universal Approach to Magnetic Second-Order Topological Insulator | Chen, Cong | We propose a universal practical approach to realize magnetic second-order topological insulator (SOTI) materials, based on properly breaking the time reversal symmetry in conventional (first-order) topological insulators. | Session 144: Topological Insulators: Theory |
| 1934 | magnetic field driven 2D spin-orbit coupled system | Xu, Yiheng; Wu, Congjun | We consider a two-dimensional spin-orbit coupled system subjected to an in-plane magnetic field, which can be realized in the Rashba spin-orbit coupled system or the surface state of a topological insulator. | Session 144: Topological Insulators: Theory |
| 1935 | Two-loop renormalization group analysis of 2D Dirac fermion with random mass | Pan, Zhiming; Wang, Tong; Ohtsuki, Tomi; Gruzberg, Ilya; Shindou, Ryuichi | We perform a two-loop renormalization group analysis for Dirac fermions with random mass in 2-epsilon dimensions. | Session 144: Topological Insulators: Theory |
| 1936 | Many-Body Invariants for Chern and Chiral Hinge Insulators | Kang, Byungmin; Lee, Wonjun; Cho, Gil Young | We present a number of supporting evidences for the invariants via topological field theory interpretation, adiabatic pumping argument, and direct mapping to free-fermion band indices. | Session 144: Topological Insulators: Theory |
| 1937 | Topological Quantum Chemistry on Phonon Spectra: An Application to the Buckled Honeycomb Lattice | Gutierrez, Martin; Garcia Vergniory, Maia; Errea, Ion; Mañes, Juan Luis | We use the methods of TQC to analyse the topology of phonon spectra. | Session 144: Topological Insulators: Theory |
| 1938 | Catalogue of Flat Band Stoichiometric Materials | Li, Mingrui; Xu, Yuanfeng; Ma, Da-Shuai; Elcoro, Luis; Song, Zhida; Ong, Nai; Parkin, Stuart; Felser, Claudia; Yazdani, Ali; Cava, Robert; Bernevig, Andrei; Regnault, Nicolas | We present a complete catalogue of the stoichiometric materials with flat bands around the Fermi level that exist in nature and filter out all the materials with line-graph (sub-)lattice. | Session 144: Topological Insulators: Theory |
| 1939 | Thermoelectric Transport and Shock Dynamics in Helical Edge States | Zhang, Xinghai; Foster, Matthew | We study transport and shock dynamics in one-dimensional helical liquids via chiral hydrodynamics. | Session 144: Topological Insulators: Theory |
| 1940 | Jacutingaite-family: a class of 2D topological materials | Crasto de Lima, Felipe; Miwa, Roberto; FAZZIO, ADALBERTO | In this work, based on the stability of other TMDs, we have unveiled a class of materials M 2NX 3 (M =Ni, Pt, Pd; N =Zn, Cd, Hg; and X=S, Se, Te), sharing jacutingaite’s key features, i.e., high stability, and large gap topological phase. | Session 144: Topological Insulators: Theory |
| 1941 | Dc Electrical Current Generated by Upstream Neutral Modes | Das, Ankur; Rao, Sumathi; Gefen, Yuval; Murthy, Ganpathy | We consider a setup made of a chiral charged edge mode and two counter-propagating neutral modes near the boundary of a quantum Hall edge. | Session 144: Topological Insulators: Theory |
| 1942 | Experimental Demonstration of Dynamic Topological Pumping Across Incommensurate Bilayered Acoustic Metamaterials | Cheng, Wenting; Prodan, Emil; Prodan, Camelia | In this talk, we present a system of acoustic metamaterials generated by incommensurate bilayers with a phason degree of freedom. | Session 144: Topological Insulators: Theory |
| 1943 | Layer Correlated Phase in Double Layer Graphene at Δν=0 | Saha, Amartya; Das, Ankur | In this work we restrict the Hamiltonian using simple symmetry arguments. | Session 144: Topological Insulators: Theory |
| 1944 | Topological phases in quasi-periodic spin chains | liu, yifei; Santos, Lea; Prodan, Emil | In this work, we generate topological phases at finite magnetization densities that carry the first Chern numbers. | Session 144: Topological Insulators: Theory |
| 1945 | Three-Dimensional Real Space Invariants and Obstructed Atomic Insulators: Catalogues and Applications | Xu, Yuanfeng; Elcoro, Luis; Song, Zhida; Mañes, Juan Luis; Garcia Vergniory, Maia; Regnault, Nicolas; Parkin, Stuart; Felser, Claudia; Bernevig, Andrei | Here, we develop the 3-d real space invariants with band representations in 1651 Shubnikov space groups, which include 230 paramagnetic and 1421 magnetic space groups. | Session 144: Topological Insulators: Theory |
| 1946 | Resonant Inelastic X-ray Spectroscopy on Electric Quadrupole Insulator | Lee, Sangjin; Cho, Gil Young | In this study, we propose that a scattering experiment can capture the topological properties of materials which is essentially bulk property. | Session 144: Topological Insulators: Theory |
| 1947 | Non-adiabatic Hall effect at Berry curvature hot spot | Tu, Wei-Yuan; Li, Ci; Yu, Hongyi; Yao, Wang | Here we present a theory of non-adiabatic Hall effect, capturing non-perturbatively the across gap electron-hole excitations by the electric field. | Session 144: Topological Insulators: Theory |
| 1948 | Topological phases in the TaSe3 compound | Nie, Si-Min; Xing, Lingyi; Jin, Rongying; Xie, Weiwei; Wang, Zhijun; Prinz, Fritz | Based on first-principles calculations, we show that stoichiometric TaSe3, synthesized in space group P21/m, belongs to a three-dimensional strong topological insulator (TI) phase with Z2 invariants (1; 100). | Session 144: Topological Insulators: Theory |
| 1949 | Quantum Hall Effect in Quasi-One-Dimensional Weak Topological Insulator | Xu, Tianyi; Cheung, Patrick; Wu, Fengcheng; Zhang, Fan | We study theoretically the integer quantum Hall effect of such WTI surface states and show the important roles played by the special geometry, symmetry, topology, and their interplay in Bi 4X 4. | Session 144: Topological Insulators: Theory |
| 1950 | Twisted Quadrupole Topological Photonic Crystals | XiaoXi, Zhou | Twisted Quadrupole Topological Photonic Crystals | Session 144: Topological Insulators: Theory |
| 1951 | Theory for the charge-density-wave mechanism of 3D quantum Hall effect | Qin, Fang; Li, Shuai; Du, Zongzheng; Wang, Chunming; Zhang, Wenqing; Yu, Dapeng; Lu, Haizhou; Xie, X. C. | We develop a theory for the CDW mechanism of 3D quantum Hall effect. | Session 144: Topological Insulators: Theory |
| 1952 | Universal properties of anyon braiding on one-dimensional wire networks | Maciazek, Tomasz; An, Byung Hee | In my talk, I will show how to define counterparts of braids and derive braiding relations for anyons constrained to move on planar wire networks. | Session 145: Nanowires and Quantum Dots |
| 1953 | Tuning the Electro-Optical Properties of Nanowire Networks | esteki, koorosh; Manning, Hugh; Ferreira, Mauro S.; Boland, John; Gomes da Rocha, Claudia | Here we conducted an in-depth computational study of randomly oriented and grid patterned NWNs in which we obtain and compare their figures of merit (optical transmittance versus sheet resistance) for a variety of metallic materials. | Session 145: Nanowires and Quantum Dots |
| 1954 | Driving forces behind the distortion of one-dimensional monatomic chains: Peierls theorem revisited | Argaman, Uri; Kartoon, Daniela; Makov, Guy | Employing modern total energy methods on the test cases of lithium, sodium, and carbon chains, we reveal that the distortion is not universal but conditional upon the balance between distorting and stabilizing forces. | Session 145: Nanowires and Quantum Dots |
| 1955 | Monte Carlo simulation of critical phenomena near the percolation threshold in two-dimensional networks consisting of curvy nanowires | Wang, Yunong; Ural, Ant | We find that the critical curviness angle increases with increasing density. | Session 145: Nanowires and Quantum Dots |
| 1956 | Edge State Wave-Functions and Velocities from Tunneling Spectroscopy | Patlatiuk, Taras; Scheller, Christian; Hill, Daniel; Tserkovnyak, Yaroslav; Egues, Carlos; Barak, Gilad; Yacoby, Amir; Pfeiffer, Loren; West, Ken; Zumbuhl, Dominik | We perform momentum-conserving tunneling spectroscopy using a GaAs cleaved-edge overgrowth quantum wire to investigate adjacent quantum Hall edge states [1]. | Session 145: Nanowires and Quantum Dots |
| 1957 | Coulomb drag between quantum wires in the quasi-1D regime | Makaju, Rebika; Kassar, Harith; Reno, John; Laroche, Dominique | We report Coulomb drag measurements in laterally-coupled single layer GaAs/AlGaAs quantum wires, enabling in situ tuning of their effective interwire separation. | Session 145: Nanowires and Quantum Dots |
| 1958 | Enhanced Dresselhaus spin-orbit interaction in low-symmetry nanowires | Carballido, Miguel; Kloeffel, Christoph; Zumbuhl, Dominik; Loss, Daniel | We present qualitative and quantitative results for low-symmetry NW cross-sections modeled after sectors of rings or circles. | Session 145: Nanowires and Quantum Dots |
| 1959 | Synthesis of Cobalt Oxide Based Misfit Nanotubes with High Conductivity and Ampacity. | Roy, Kankona; Lodha, Saurabh; Panchakarla, Leela Srinivas | We present the synthesis of 1D nanotubes (NT) from oxide misfit compounds with a very high yield by solid-state and solution-based synthesis. | Session 145: Nanowires and Quantum Dots |
| 1960 | Room temperature GeSn nanowire mid-infrared photodetectors | Luo, Lu; Assali, Simone; Atalla, Mahmoud; Koelling, Sebastian; Moutanabbir, Oussama | In this presentation, we will discuss the structural and opto-electronic properties of Ge/GeSn core/shell nanowires (NW) that are grown with a tunable, uniform Sn content exceeding 20 at. | Session 145: Nanowires and Quantum Dots |
| 1961 | Rolling up Two-Dimensional Layers of Silicon Sulfide: Dimerization Effects and Negative Strain Energy in Silicon Monosulfide Nanotubes | Alonso-Lanza, Tomas; Aguilera-Granja, Faustino; Ayuela, Andres | We investigate nanotubes of two-dimensional materials isoelectronic to phosphorene by rolling up the recently discovered layers of silicon monosulfide, in phases that in order of decreasing stability are labeled as P mma and β [1-3]. | Session 145: Nanowires and Quantum Dots |
| 1962 | New strategies for submicrometric maskless Additive Manufacturing of metallic structures using Nonlinear Photoreduction | Di Cianni, Wera; Giocondo, Michele; de Leon, Alberto Sanz | We analyze the application of a novel technique based on the two-photon reduction of photosensitive metallic precursors [1]. | Session 145: Nanowires and Quantum Dots |
| 1963 | Ghost Coupling: Exact Degeneracies in Guided Modes of Biaxial Dielectric Waveguides | Khan, Emroz; Debnath, Sanjay; Narimanov, Evgenii | In this work we challenge this well-accepted notion by presenting a new mechanism of mode coupling that does not lift degeneracies. | Session 145: Nanowires and Quantum Dots |
| 1964 | Hot-carrier induced giant above-threshold light emission enhancement in plasmonic tunnel junctions | Zhu, Yunxuan; Cui, Longji; Abbasi, Mahdiyeh; Ahmadivand, Arash; Gerislioglu, Burak; Nordlander, Peter Jan; Di Ventra, Massimiliano; Natelson, Douglas | Here, based on the hot-carrier induced above-threshold electroluminescence, we report a surprising observation of Au nano junctions emitting over 1000-fold more upconverted photons under combined electrical and optical intraband excitation than the simple sum of light emission by either individual stimulus. | Session 145: Nanowires and Quantum Dots |
| 1965 | Thermopower of Quantum Wires at the LaAlO3/SrTiO3 Interface | Tang, Yuhe; Jiang, Puqing; Lee, Jungwoo; Lee, Hyungwoo; Huang, Mengchen; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | We report the electrical and thermoelectric transport properties of quantum wires at the LaAlO 3/SrTiO 3 interface at milli-Kelvin temperatures. | Session 145: Nanowires and Quantum Dots |
| 1966 | Emergence of winner-takes-all connectivity paths in random nanowire networks | Gomes da Rocha, Claudia; Adams, Elijah; Chisholm, Ciara; Newton, Thomas; Manning, Hugh; Niosi, Fabio; Ferreira, Mauro S.; Boland, John | We are developing an innovative computational platform designed to model the neuromorphic properties of smart network devices. | Session 145: Nanowires and Quantum Dots |
| 1967 | Modeling unconventional superconductivity at the crossover between strong and weak electronic interactions | Christensen, Morten Holm; Wang, Xiaoyu; Schattner, Yoni; Berg, Erez; Fernandes, Rafael | Modeling unconventional superconductivity at the crossover between strong and weak electronic interactions | Session 146: Superconducting and Superfluid Instabilities |
| 1968 | Charge Density Wave and Superconductivity in the Disordered Holstein Model | Xiao, Bo; Costa, Natanael; Khatami, Ehsan; Batrouni, George; Scalettar, Richard | Here we extend this physics to explore electron-phonon interactions and show, via exact quantum Monte Carlo simulations, that the suppression of the charge density wave correlations in the half-filled Holstein model by disorder can stabilize a superconducting phase. | Session 146: Superconducting and Superfluid Instabilities |
| 1969 | Superconducting instabilities in spinful SYK models | Lantagne-Hurtubise, Etienne; Pathak, Vedangi; Sahoo, Sharmistha; Franz, Marcel | In this talk I will introduce a solvable toy model for correlated superconductivity in 0+1 dimensions: a spinful generalization of the Sachdev-Ye-Kitaev model with time-reversal invariant interactions. | Session 146: Superconducting and Superfluid Instabilities |
| 1970 | Inducing and controlling superconductivity in Hubbard honeycomb model using an electromagnetic drive | Kumar, Umesh; Lin, Shi-Zeng | We start with the Hubbard honeycomb model in the presence of an electromagnetic field drive; both, (a) circularly and (b) linearly polarized light, and map it onto a Floquet t-J model. | Session 146: Superconducting and Superfluid Instabilities |
| 1971 | Photoinduced Enhancement of Superconductivity in the Plaquette Hubbard Model | Zhang, Yuxi; Mondaini, Rubem; Scalettar, Richard | Our work provides further understanding of superconductivity in the Hubbard model and offers an promising approach for experimentally engineering emergent states out of equilibrium. | Session 146: Superconducting and Superfluid Instabilities |
| 1972 | Dynamical Order and Superconductivity in a Frustrated Many-Body System | Tindall, Joseph; Schlawin, Frank; Buzzi, Michele; Nicoletti, Daniele; Gao, Hongmin; Coulthard, Jonathan; Cavalleri, Andrea; Sentef, Michael; Jaksch, Dieter | We study the driven two-rung triangular Hubbard model and evolve these states out of equilibrium, observing how the interplay between the driving and the initial state unexpectedly shuts down the particle-hole excitation pathway. | Session 146: Superconducting and Superfluid Instabilities |
| 1973 | Dynamics of stripe pattern formation in high-Tc superconductors following a quench | Zhu, Minhui; Baykusheva, Denitsa; Abbamonte, Peter; Mitrano, Matteo; Goldenfeld, Nigel | Here, we investigate the relaxation dynamics of the quench process of stripe ordering from disordered states, using the Swift-Hohenberg equation as a phenomelogical model forthe collective modes of charge density waves. | Session 146: Superconducting and Superfluid Instabilities |
| 1974 | Non Fermi liquid scattering and pseudogap: spectral features from a meanfield with partial incoherence of lower dimension | Yue, Xinlei; Li, Xiang; Ku, Wei | Here we propose that these features can also come from coupling to an unconventional ”Bose metal” meanfield, which contains perfect coherence and partial phase incoherence of lower dimension. | Session 146: Superconducting and Superfluid Instabilities |
| 1975 | A study of momentum dependent electron-phonon-couplings in Ab-initio Cuprate Hamiltonians | Yirga, Nahom; Campbell, David | We use the functional renormalization group (fRG) to study the impact of strong electron-phonon couplings on effective Cuprate Hamiltonians with up to three bands. | Session 146: Superconducting and Superfluid Instabilities |
| 1976 | Three-dimensional electron-hole superfluidity in a superlattice close to room temperature | Conti, Sara; Van der Donck, Matthias; Neilson, David; Perali, Andrea; Hamilton, Alex; Partoens, Bart; Peeters, Francois | As a quantitative example, we present results for an electron-hole superfluid in a superlattice of transition metal dichalcogenide monolayers in which the critical temperature can reach 270 K [5]. | Session 146: Superconducting and Superfluid Instabilities |
| 1977 | Dimensional crossover and phase transitions in coupled chains: DMRG results | Bollmark, Per; Kantian, Adrian | In the present work, we combine numerical matrix product state (MPS) methods with mean-field (MF) theory to study paradigmatic cases of DC in systems of hard- and soft-core lattice bosons, with relevance to both condensed matter physics and ultracold atomic gases. | Session 146: Superconducting and Superfluid Instabilities |
| 1978 | Manipulating intertwined orders in solids with quantum light | Li, Jiajun; Eckstein, Martin | In this paper, we explore the unique opportunity of manipulating intertwined orders through entangling electronic states with quantum light. | Session 146: Superconducting and Superfluid Instabilities |
| 1979 | Critical Anomalous Metal Near Superconductivity in a Random Hubbard Model | Li, Chenyuan; Joshi, Darshan; Sachdev, Subir | We study the quantum phase transition between a superconductor and a metal within a half-filled Hubbard model of electrons with random and all-to-all hopping and exchange. | Session 146: Superconducting and Superfluid Instabilities |
| 1980 | Competing nodal d-wave superconductivity and antiferromagnetism: a Quantum Monte Carlo study | Xu, Xiao Yan; Grover, Tarun | Here we will exploit the fact that neither of these phases, the nodal d-wave superconductor or the antiferromagnet, require any doping for their existence, and construct a sign-problem-free repulsive Hubbard model with an additional bosonic field which hosts both of these phases. | Session 146: Superconducting and Superfluid Instabilities |
| 1981 | Optimized pairing from repulsive interactions in Fermi-Hubbard ladders and its static and dynamic signatures | Koehler, Thomas; Kantian, Adrian | In this talk we will present such results for the Fermi-Hubbard ladder, which is proven to have unconventional pairing, and that allows us to optimize this pairing via changes in ladder structure and interactions based on highly accurate numerical theory such as matrix-product-state-based methods. | Session 146: Superconducting and Superfluid Instabilities |
| 1982 | Rise and Fall of Non-Fermi Liquid Fixed Points in Multipolar Kondo Problems | Schultz, Daniel; Patri, Adarsh; Kim, Yong-Baek | In this work, using renormalization group analysis, we investigate a model where the multipolar local moment is coupled to conduction electrons with two different orbital-symmetry components. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1983 | Critical theory of non-Fermi liquid fixed point in multipolar Kondo problem | Patri, Adarsh; Kim, Yong-Baek | In this talk, we theoretically investigate the multipolar Kondo problem, where conduction electrons interact with localized higher-rank multipolar moments (such as quadrupolar or octupolar moments). | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1984 | Non-Fermi Liquid Phenomena and Novel Quantum Criticality in the Multipolar Kondo System PrV2Al20 | Fu, Mingxuan; Sakai, Akito; Sogabe, Naoki; Tsujimoto, Masaki; Matsumoto, Yosuke; Nakatsuji, Satoru | Here, we present a comprehensive study of the NFL behavior in PrV 2Al 20 single crystals using transport and thermodynamic measurements [3]. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1985 | Non-linear Conductance for the Charge Two-Channel Kondo Model | Guessi, Luiz; Barthel, Thomas; Oliveira, Luiz; Baranger, Harold | Motivated by a recent experiment [Z. Iftikhar et al, Nature 526, 233 (2015)], we report a time-dependent Density-Matrix Renormalization-Group computation of the low-temperature non-equilibrium current across a microscopic metallic island coupled to two independent leads. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1986 | Floquet engineering multi-channel Kondo lattices | Quito, Victor; Flint, Rebecca | Unpolarized light, constructed by polarization averaging [V. L. Quito and R. Flint, arXiv:2003.04272], can be particularly useful for designing multichannel Kondo lattices that present Floquet-induced Kondo models not found in equilibrium. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1987 | Mobile Majorana zero-modes in two-channel Kondo lattices | Kornjaca, Milan; Quito, Victor; Flint, Rebecca | We examine this effect in a simple square octagon model at quarter filling with an antiferrohastatic order that opens up a hybridization gap at the quadratic band touching point and show that skyrmionic defects in this state host Majorana zero modes. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1988 | High harmonic generation in Weyl-Kondo semimetals | Grefe, Sarah; Prasankumar, Rohit; Si, Qimiao; Zhu, Jian-Xin | Using a Peierls-substituted noncentrosymmetric periodic Anderson model including spin orbit coupling, we elucidate the effect of strong correlations on the SHG order and its intensity. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1989 | Quantum Criticality and Sequential Destruction of Spin-Orbital-coupled Kondo Effect* | Paschen, Silke; Liu, Chia-Chuan; Cai, Ang; Yu, Rong; Nica, Emilian; Si, Qimiao | Here we report an analytical renormalization group calculation of the model with Ising anisotropy. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1990 | Quantum Criticality of Kondo Lattice Model: A Renormalization Group Study via Quantum non-Linear Sigma Model* | Wang, Yiming; Liu, Chia-Chuan; Si, Qimiao | Here we approach the problem from the magnetically ordered side, and represent the Kondo lattice model using a quantum non-linear sigma model with an additional coupling to itinerant fermions. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1991 | Strange metal state in a paramagnetic heavy-fermion Kondo lattice: Dynamical large-N fermionic multi-channel approach | Wang, Jiangfan; Chang, Yung-Yeh; Chung, Chung-Hou | We establish a controlled theoretical framework to this issue via a dynamical large-N fermionic multichannel ap- proach to the two-dimensional Kondo-Heisenberg lattice model, where KB transition separates a heavy-Fermi liquid from fermionic spin-liquid state. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1992 | New variational method for quantum impurity problems | Boutin, Samuel; Bauer, Bela | Phys., 356 451 (2017)], we present a new practical approach for performing variational calculations for quantum impurity problems. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1993 | Kondo-driven topological semimetals in two and three dimensions | Setty, Chandan; Hu, Haoyu; Grefe, Sarah; Paschen, Silke; Cano, Jennifer; Si, Qimiao | We find that the Kondo effect in these lattices drives Weyl or Dirac nodes and pins them to the vicinity of the Fermi energy. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1994 | Weyl-Kondo semimetal: Topological quantum phase transition by a Zeeman coupling | Grefe, Sarah; Lai, Hsin-Hua; Buehler-Paschen, Silke; Si, Qimiao | 5 Here, we studied the Anderson lattice model with a broken time reversal symmetry, via a Zeeman coupling. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1995 | Bosonization and Refermionization of Multichannel Kondo Hamiltonians | Ljepoja, Aleksandar; Shah, Nayana; Bolech, Carlos | Here we are interested in employing bosonization methods for these Hamiltonians. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1996 | Strong correlation effects on the nonlinear response in Weyl-Kondo semimetals | Kofuji, Akira; Michishita, Yoshihiro; Peters, Robert | In this work, we focus on NLH in WKSM. | Session 147: Multi-Polar, Multi-Channel, and Semimetal Kondo systems |
| 1997 | An Investigation into the Characteristics of the Superconducting Phases in Heavily P-doped Germanium | Sardashti, Kasra; Nguyen, Tri; Sarney, Wedny; Leff, Asher; Hatefipour, Mehdi; Yuan, Joseph; Mayer, William; Dartiailh, Matthieu; Shabani, Javad | In this study, superconducting Ge is realized via ion implantation of Ga, followed by activation annealing. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 1998 | a-axis YBa2Cu3O7-x/PrBa2Cu3O7-x/YBa2Cu3O7-x trilayers with improved interface and surface roughness | Suyolcu, Y. Eren; Sun, Jiaxin; Goodge, Berit; Park, Jisung; Schubert, Juergen; Fitting Kourkoutis, Lena; Schlom, Darrell | We demonstrate a-axis YBa 2Cu 3O 7-x/PrBa 2Cu 3O 7-x/YBa 2Cu 3O 7-x trilayers grown on (100) LaAlO 3 substrates with improved interface smoothness. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 1999 | Correlated structural distortions in the cuprate superconductors | Anderson, Zachary; Pelc, Damjan; Krogstad, Matthew; Biniskos, Nikolaos; Yu, Biqiong; Thompson, Liam; Zwettler, Jack; Spieker, Richard; Bielinski, Nina; Rosenkranz, Stephan; Osborn, Raymond; Greven, Martin | Using structure modelling and the 3D-ΔPDF method [2], we reveal the real-space structure associated with these distortions and find atomic shifts perpendicular to the CuO 2 planes, with a characteristic length scale similar to the SC correlation length. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2000 | Single Crystal Synthesis of the Spin-Triplet Superconductor LaNiGa2 | Badger, Jackson; Quan, Yundi; Staab, Matthew; Rossi, Antonio; Neubauer, Kelly; Devlin, Kasey; Perez, Chris; Kauzlarich, Susan; Fettinger, Jim; Klavins, Peter; Aoki, Dai; Vishik, Inna; Pickett, Warren; Taufour, Valentin | Previous μSR work on polycrystalline samples showed that LaNiGa 2 breaks time-reversal symmetry upon entering the superconducting state. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2001 | Aluminum thickness influence on tunnel junction conductance in Nb/Al based N/I/S junctions | Barcikowski, Zac; Pomeroy, Joshua | We accurately model the data using the Blonder-Tinkham-Klapwijk (BTK) theory and discuss trends in BTK barrier strength, the superconducting energy gap, and broadening as the Al film thickness and temperature are changed. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2002 | Theory-based interpretation of recent experiments on metallic hydrogen | Dogan, Mehmet; Oh, Sehoon; Cohen, Marvin | In our ab initio study of pressure dependent vibron frequency and direct band gap, we find that the experimental data is consistent with the C2/c-24 phase up to 425 GPa. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2003 | Enhanced superconductivity in plastically deformed strontium titanate | Hameed, Sajna; Pelc, Damjan; Anderson, Zachary; Klein, Avraham; Spieker, Richard; Lukas, Marin; Liu, Yaohua; Krogstad, Matthew; Osborn, Raymond; Leighton, Chris; Fernandes, Rafael; Greven, Martin | Here we explore a different approach: irreversible, plastic deformation of single crystals. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2004 | Study of topological nature of superconducting and normal states of RhPb2 | Subotic, Nikola; Kashiwagi, Takanari; Mirković, Jovan; Takeuchi, Osamu; Shigekawa, Hidemi; Mochiku, Takashi; Kadowaki, Kazuo | We have tried to grow the single crystal by using the vertical pulling mechanism in a mirror furnace. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2005 | Strain-tuning emergent phases in FeTe between (π,0) and (π,π) order | Yim, Chi Ming; Panja, Soumendra; Trainer, Christopher; Topping, Craig; Heil, Christoph; Tsurkan, Vladimir; Loidl, Alois; Rost, Andreas; Wahl, Peter | Using low temperature scanning tunneling microscopy of strained samples, we have studied, at the atomic scale, the impact of small lattice distortions on the magnetic order of Fe 1+xTe ( x~0.06). | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2006 | Enhanced Superconductivity in Dirac semimetal 1T-PdTe2 | liu, wenhao | Here we report an enhancement of superconducting transition temperature in PdTe 2. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2007 | Unconventional superconductivity of BeAu | Khasanov, Rustem; Gupta, Ritu; Das, Debarchan; Leithe-Jasper, Andreas; Svanidze, Eteri | Instead, the data can be successfully fitted using a self-consistent two-gap approach. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2008 | Diffuse Scattering Studies of Local Correlations in ErBa2Cu3O6+x crystals | Poudel, Bisham; Upreti, Puspa; Krogstad, Matthew; Phelan, Daniel; Osborn, Raymond; Rosenkranz, Stephan; Chmaissem, Omar | In this talk, I will discuss the structural properties of five ErBa 2Cu 3O 6+x single crystals with oxygen contents tuned to produce T C’s = 0, 22, 55, 75 and 92 K. Systematic three-dimensional reciprocal space mapping was performed at sector 6 at the Advanced Photon Source at temperatures between 30 and 300 K. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2009 | Electrical and optical properties of (110)-oriented YBa2Cu3O7 / (110)-oriented PrBa2(Cu0.8Ga0.2)3O7 heterostructure | Kandel, Hom; Jones, Julia; Arndt, Nathan; Lee, Jungwoo; Eom, Chang-Beom | Here, we present experimental results on structural, electrical transport, and optial properties of the heterostructure. | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2010 | Impact of growth parameters and treatment of single crystals on the superconductivity in UTe2 | Saha, Shanta; Saraf, Prathum; Liu, I-Lin; Hayes, Ian; Shen, Maximilian; Collini, John; Ran, Sheng; Butch, Nicholas; Paglione, Johnpierre | Impact of growth parameters and treatment of single crystals on the superconductivity in UTe2 | Session 148: Superconducting Materials: Growth, Structure, and Properties |
| 2011 | Domains, Domain Ordering, and Phase Slips in the Nearly-Commensurate Charge Density Wave Phase of 1T-TaS2 | Yu, Boning; Singh, Manoj; Sharma, Bishnu; Huber, James; Ainouche, ghilles; Boyer, Michael | We use scanning tunneling microscopy (STM) to study the nearly-commensurate CDW state so as to detail, at the atomic-scale, domains, domain ordering, and CDW phase slips in the NC-CDW phase of 1T-TaS2. | Session 149: Organic Conductors and CDW Materials |
| 2012 | Origin of Stripe CDW Structures and Multivalley Free Energy Landscape in MX2 Systems | Nakatsugawa, Keiji; Ikeda, Tatsuhiko; Tanda, Satoshi | In this talk, we reinvestigate the Ginzburg-Landau model of 2D CDW transition [3]. | Session 149: Organic Conductors and CDW Materials |
| 2013 | The Landau-Peierls distortion in the linear acetylenic carbon chain: an ab-initio study of the interplay between electronic correlations and anharmonic lattice dynamics | Romanin, Davide; Monacelli, Lorenzo; Bianco, Raffaello; Errea, Ion; Mauri, Francesco; Calandra, Matteo | In this work we re-investigate the Landau-Peierls distortion of carbyne from first principles, departing from the harmonic description of lattice dynamics and taking into account electronic correlations. | Session 149: Organic Conductors and CDW Materials |
| 2014 | Charge order from structured coupling in VSe2 | Henke, Jans; Flicker, Felix; Laverock, Jude; Van Wezel, Jasper | We demonstrate that the thermal variation of the CDW vectors is naturally reproduced by the electronic susceptibility when incorporating a structured, momentum-dependent electron-phonon coupling, while the evasive CDW gap presents itself as a localized suppression of spectral weight centered above the Fermi level. | Session 149: Organic Conductors and CDW Materials |
| 2015 | Charge-Density-Wave Transition in VSe2 from First Principles | Diego, Josu; Errea, Ion; Blanco-Canosa, Santiago | Charge-Density-Wave Transition in VSe2 from First Principles | Session 149: Organic Conductors and CDW Materials |
| 2016 | Charge density wave in BaFe2Al9 | Meier, William; Chakoumakos, Bryan; Christianson, Andrew; Zhang, Qiang; Gao, Shang; Stone, Matthew; Okamoto, Satoshi; Samolyuk, German; Hermann, Raphael; McGuire, Michael; Sales, Brian | Charge density wave in BaFe2Al9 | Session 149: Organic Conductors and CDW Materials |
| 2017 | Electronic Structure and doping dependence of the electron nematic series SrxBa1-xNi2As2 | Narayan, Dushyant; HAO, PEIPEI; Gordon, Kyle; Linn, Andrew; Li, Haoxiang; Berggren, Bryan; Whitelock, Hope; Eckberg, Chris; Saraf, Prathum; Collini, John; Paglione, Johnpierre; Dessau, Daniel | Here we present detailed high-resolution ARPES measurements of the Sr xBa 1-xNi 2As 2 series as a function of temperature, comparing the measured band dispersion and Fermi surfaces to density functional theory calculations of the electronic structure carried out in different phases. | Session 149: Organic Conductors and CDW Materials |
| 2018 | Study of temperature-dependent lattice parameter in the organic metal α-(ET)2 KHg(SCN)4 | Ghimire, Raju; Ganter, Owen; Laramee, Brett; Islam, Zahir; Welp, Ulrich; Neu, Jennifer; Agosta, Charles | Here we will present preliminary temperature-dependent data for the lattice parameter (b-axis) at 296K, 104K, and 4K. | Session 149: Organic Conductors and CDW Materials |
| 2019 | Robust quantum spin liquid state in hydrogen-bonded organic Mott insulators | Hashimoto, Kenichiro; Shimozawa, Masaaki; Yamashita, Minoru; Ueda, Akira; Mori, Hatsumi; Sasaki, Takahiko | Here, we investigate a series of κ-H 3(Cat-X) 2 (X = EDT-TTF, EDT-ST, EDT-d4-TTF, and EDSe-TTF), where the substitution of X affects the anisotropy of the triangular lattice as well as the hydrogen-bond dynamics. | Session 149: Organic Conductors and CDW Materials |
| 2020 | Electrical transport and resistance noise spectroscopy in an organic semiconductor | Jerla, Nicholas; Adhikari, Dasharath; Huang, Yulong; Ren, Shenqiang; Ganapathy, Sambandamurthy | Electrical transport and resistance noise spectroscopy in an organic semiconductor | Session 149: Organic Conductors and CDW Materials |
| 2021 | Born-Oppenheimer Treatment of the Quadratic SSH Model at Half Filling | Fomichev, Stepan; Berciu, Mona | In order to tackle stronger electron-phonon coupling and address derivation inconsistencies, we extend the Su-Schrieffer-Heeger (SSH) model to second order in atomic displacements, and study it semi-analytically using the Born-Oppenheimer approximation. | Session 149: Organic Conductors and CDW Materials |
| 2022 | Atomic-Scale Studies of the Nearly-Commensurate and Incommensurate Charge Density Wave Phases of 1T-TaS2 | Boyer, Michael; Singh, Manoj; Yu, Boning; Sharma, Bishnu; Huber, James | Here we present our scanning tunneling microscopy studies on the higher-temperature nearly-commensurate and incommensurate CDW states with a focus on domains, domain walls, and their changes with temperature. | Session 149: Organic Conductors and CDW Materials |
| 2023 | Visualizing Fermi surface anisotropy underpinning a unidirectional charge density wave | Alamgir Tehrani, Nastaran; Rachmilowitz, Bryan; Zeljkovic, Ilija; Sankar, Raman; Chou, Fangchang; Wang, Ziqiang | Here, we use spectroscopic-imaging scanning tunneling microscopy (SI-STM) to visualize and compare the underlying band structure of a unidirectional (1Q) and a triangular (3Q) 2 a0 CDW phase in strained NbSe 2. | Session 149: Organic Conductors and CDW Materials |
| 2024 | Predicted monopole-antimonopole pair annihilation in an organic salt α-(BEDT-TTF)2I3 induced by linearly polarized light | Kitayama, Keisuke; Tanaka, Yasuhiro; Ogata, Masao; Mochizuki, Masahito | Here we theoretically predicted that the monopole-antimonopole pair annihilation can occur in a photodriven α-(BEDT-TTF) 2I 3 which possesses slightly gapped Dirac cones in its band structure. | Session 149: Organic Conductors and CDW Materials |
| 2025 | Anisotropic Charge Density Waves in Thermal Quench of 2H-TaSe2 | Ikeda, Tatsuhiko; Kawahara, Koji; Nakatsugawa, Keiji; Tanda, Satoshi | To answer these questions, we performed a real-space time-dependent GL simulation for 2 H-TaSe 2, without constraint on OP configurations. | Session 149: Organic Conductors and CDW Materials |
| 2026 | Superconductivity and correlated states in twisted bilayer graphene-WSe2 heterostructures: Part 1 | Zhang, Yiran; Polski, Robert; Arora, Harpreet; Thomson, Alex; Choi, Youngjoon; Kim, Hyunjin; Lin, Zhong; Xu, Xiaodong; Chu, Jiun-Haw; Watanabe, Kenji; Taniguchi, Takashi; Alicea, Jason; Nadj-Perge, Stevan | Here we show that adding an insulating WSe 2 monolayer to the TBG stabilizes superconductivity at twist angles much smaller than the magic angle. | Session 150: Superconductivity in 2D Sytems |
| 2027 | Superconductivity and correlated states in twisted bilayer graphene-WSe2 heterostructures: Part 2 | Polski, Robert; Zhang, Yiran; Arora, Harpreet; Thomson, Alex; Choi, Youngjoon; Kim, Hyunjin; Lin, Zhong; Xu, Xiaodong; Chu, Jiun-Haw; Watanabe, Kenji; Taniguchi, Takashi; Alicea, Jason; Nadj-Perge, Stevan | We show that adding an insulating monolayer of WSe 2 to the TBG stabilizes superconductivity down to angles as small as 0.79°. | Session 150: Superconductivity in 2D Sytems |
| 2028 | DC Josephson effect in Magic-Angle Twisted Bilayer Graphene | De Vries, Folkert; Portoles, Elias; Zheng, Giulia; Taniguchi, Takashi; Watanabe, Kenji; Ihn, Thomas; Ensslin, Klaus; Rickhaus, Peter | Here we use magic-angle twisted bilayer graphene to electrostatically define a Josephson junction, and investigate the observed DC Josephson effect. | Session 150: Superconductivity in 2D Sytems |
| 2029 | Independent Superconductors and Correlated Insulators in Twisted Bilayer Graphene | Ge, Jingyuan; Saito, Yu; Taniguchi, Takashi; Watanabe, Kenji; Young, Andrea | In this talk, I will describe our “cut-and-stack” technique to fabricate highly homogeneous tBLG devices, and survey our transport measurements of the intrinsic properties of these devices with a focus on superconductivity. | Session 150: Superconductivity in 2D Sytems |
| 2030 | Superconductivity, correlated insulators, and Wess-Zumino-Witten terms in twisted bilayer graphene | Christos, Maine; Sachdev, Subir; Scheurer, Mathias | We will present a comprehensive listing of plausible low-temperature orders for the correlated insulators, and the possible parent flavor symmetry breaking orders at charge neutrality and half-filling. | Session 150: Superconductivity in 2D Sytems |
| 2031 | Atlas of air-stable 2D metals: gapping conditions, alloying rules, and superconductivity | Wang, Yuanxi; Crespi, Vincent | We present a first-principles high-throughput survey on the structures and stabilities of all metals in the periodic table that would intercalate a graphene/SiC interface [2]. | Session 150: Superconductivity in 2D Sytems |
| 2032 | Plasmon-phonon interactions in twisted bilayer graphene | Cea, Tommaso | Unexpected features appear at these energy scale and we suggest that their signature can be detected via THz spectroscopic techniques. | Session 150: Superconductivity in 2D Sytems |
| 2033 | Magic-angle Bilayer Phononic Graphene | Deng, Yuanchen; Oudich, Mourad; Gerard, Nikhil; Ji, Jun; Lu, Minghui; Jing, Yun | Beyond mimicking quantum mechanical behaviors of twisted bilayer graphene, we show that their acoustic counterpart offers a considerably more straightforward and robust way to alter the interlayer hopping strength, enabling us to unlock magic angles (>3 degrees) inaccessible in classical twisted bilayer graphene. | Session 150: Superconductivity in 2D Sytems |
| 2034 | Interlayer electron-phonon coupling in Moire superlattices | Han, Tonghang; Han, Tianyi; Yang, Jixiang; Chen, Guorui; Rodan-Legrain, Daniel; Park, Jeong Min; Jiang, Lili; Li, Hongyuan; Shi, Zhiwen; Lv, Bosai; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo; Zhang, Yuanbo; wang, feng; Ju, Long | I will present our infrared spectroscopy study of several graphene-based Moire superlattices, showing strong features of interlayer electron-phonon coupling. | Session 150: Superconductivity in 2D Sytems |
| 2035 | Pairing in magic-angle twisted bilayer graphene: role of phonon and plasmon umklapp | Lewandowski, Cyprian; Chowdhury, Debanjan; Ruhman, Jonathan | We perform a theoretical study of the cooperative effects due to phonons and plasmons on pairing to disentangle their role played on superconductivity. | Session 150: Superconductivity in 2D Sytems |
| 2036 | Atomistic Study on Electron-Phonon Coupling in Twisted Graphene Layers | Choi, Young Woo; Choi, Hyoung Joon | We investigate electron-phonon coupling in twisted graphene layers based on atomistic calculations of electronic structure, phonon dispersion, and electron-phonon matrix elements. | Session 150: Superconductivity in 2D Sytems |
| 2037 | Van Hove driven symmetry breaking phases in twisted double bilayer graphene and superconductivity in a new twisted system | Hao, Zeyu; Zimmerman, Andrew; Liu, Xiaomeng; Ronen, Yuval; Haei Najafabadi, Danial; Watanabe, Kenji; Taniguchi, Takashi; Kim, Philip | By comparing the transport measurements and single particle band calculation, we find that these symmetry breaking phases are closely related to the evolution of van Hove singularities in TDBG energy bands. | Session 150: Superconductivity in 2D Sytems |
| 2038 | AC Josephson effect in Magic-Angle Twisted Bilayer Graphene | Portolés, Elías; De Vries, Folkert; Zheng, Giulia; Taniguchi, Takashi; Watanabe, Kenji; Ihn, Thomas; Ensslin, Klaus; Rickhaus, Peter | Here, we electrostatically define a Josephson junction in MATBG by selectively tuning the Fermi energy on different parts of our device [2]. | Session 150: Superconductivity in 2D Sytems |
| 2039 | Nonlocal Josephson Effect in Magic Angle Graphene Devices | Rodan-Legrain, Daniel; Cao, Yuan; Park, Jeong Min; de la Barrera, Sergio; Randeria, Mallika; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo | Here, we exploit the tunability of MATBG to engineer Josephson junctions and tunneling transistors all within one material, defined solely by electrostatic gates. | Session 150: Superconductivity in 2D Sytems |
| 2040 | Upper critical field and critical supercurrent in twisted bilayer graphene | Qin, Wei; Zou, Bo; Macdonald, Allan | Based on the optical-phonon-mediated mechanism assisted by adjustable Coulomb repulsion, we perform self-consistent Bogoliubov-de Gennes mean-field calculations to ascertain the characters of superconducting state generated at finite pairing momentum in twisted bilayer graphene. | Session 150: Superconductivity in 2D Sytems |
| 2041 | FLEX modeling of the strain dependence of the superconducting state of Sr2RuO4 | Deisz, John | We apply the fluctuation exchange approximation (FLEX) to model the evolution of the superconducting state of Sr 2RuO 4 under strain. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2042 | Multi-Orbital B1g Superconducting Order Parameter with Complex Components Induced by Spin-Orbit Coupling in Strontium Ruthenate | Gingras, Olivier; Cote, Michel; Tremblay, A.-M. | Starting from a realistic electronic structure, we solve the frequency dependent Eliashberg equations with a spin-fluctuation pairing vertex. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2043 | Shadowed Triplet Pairings in Hund’s Metals with Spin-Orbit Coupling | Clepkens, Jonathan; Lindquist, Austin; Kee, Hae-Young | Here, we examine the role of momentum-dependent SOC (k-SOC) in generating non-trivial pairing symmetries at the FS, and the hidden triplet nature associated with this inter-orbital pairing, which we dub a “shadowed triplet”. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2044 | Stabilizing Even-Parity Chiral Superconductivity in Sr2RuO4 | Suh, Han Gyeol; Menke, Henri; Brydon, Philip; Timm, Carsten; Ramires, Aline; Agterberg, Daniel | In this talk, I will discuss how the orbital degree of freedom can encode the two-component nature of the E g order parameter, allowing for an s-wave orbital-antisymmetric spin-triplet E g state that can be stabilized by on-site Hund’s coupling. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2045 | Time-reversal-odd-bilinears: Key to the anomalous Hall effect in chiral superconductors | Denys, Mathew; Brydon, Philip | Motivated by the observation of the polar Kerr effect in e.g. UPt 3 and Sr 2RuO 4, we consider the origin of the anomalous Hall conductivity in a clean chiral superconductor. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2046 | Effects of longer-range interaction on superconductivity in Sr2RuO4 | Wang, Xin; Wang, Zhiqiang; Kallin, Catherine | In this work, we investigate the effect of longer-range interactions on different Cooper pairing channels in different regimes of the interaction parameter space. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2047 | Superconducting Instability From Spin Fluctuations in Sr2RuO4 | Rømer, Astrid; Hirschfeld, Peter; Andersen, Brian | Here we explore which superconducting order parameters are favorable from the perspective of spin-fluctuation mediated pairing, taking into account the multi-orbital nature of the system and the sizable spin-orbit coupling [4]. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2048 | A microscopic BdG analysis of time-reversal symmetry breaking at domain walls in a model of Sr2RuO4 | Yuan, Andrew; Kivelson, Steven; Berg, Erez | We perform a BdG analysis of the effect of spatially varying strain on such a state, and its impact on the transition to a state with spontaneously broken time-reversal symmetry (TRS). | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2049 | Exchange Interactions and Competing S=0 and S=1 States in Doped NdNiO2 | Wan, Xiangang; Ivanov, Vsevolod; Resta, Giacomo; Leonov, Ivan; Savrasov, Sergey | Using density functional based LDA+U methods and linear–response theory, we study the magnetic exchange interactions of the superconductor Nd 1−xSr xNiO 2, finding that hole doping significantly enchances the inter-layer exchange coupling compared to the nearest-neighbor interactions. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2050 | Possible incipient-band-induced unconventional superconductivity in nickelates with large crystal field splitting | Kuroki, Kazuhiko; Kitamine, Naoya; Ochi, Masayuki | We exploit the mixed anion strategy to enhance the crystal field splitting, so that only the d x2-y2 band intersects the Fermi level, while all the other four 3d bands are incipient. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2051 | Enhanced Superconductivity in Quasi-periodic Crystals | Lin, Shi-Zeng; Fan, Zhijie; Chern, Gia-Wei | We study superconductivity in a family of one dimensional incommensurate system with s-wave pairing interaction. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2052 | Influence of uniaxial pressure and spin-orbit coupling on spin fluctuations in superconducting strontium ruthenate | Allaglo, Nikita; Gingras, Olivier; Tremblay, A.-M. | Studies of superconductivity based on a correlated electronic structure and spin-fluctuation theory have predicted three possible order parameters but neglected spin-orbit coupling [1], although it was shown that this coupling might be important [2]. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2053 | Proposals to detect Bogoliubov Fermi surfaces | Oh, Hanbit; Moon, Eun-Gook | In this work, we provide theoretical proposals to pin down a BG-FS. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2054 | Magnetic interaction in UTe2 | Shishidou, Tatsuya; Agterberg, Daniel; Weinert, Michael | In this work, based on density-functional theory calculations and model calculations, we discuss possible forms of magnetic interactions in UTe 2. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2055 | Theory of (s + id) pairing in mixed-valent correlated metals | Nica, Emilian; Erten, Onur | Motivated by the recent discovery of superconductivity in square-planar nickelates as well as by longstanding puzzling experiments in heavy-fermion superconductors, we study Cooper pairing between correlated d -electrons coupled to a band of weakly-correlated electrons. | Session 151: Superconductivity Theory: Mainly Ruthenates and Nickelates |
| 2056 | Plasmon-Phonon Superconductivity in Strontium Titanate | Edelman, Alexander; Littlewood, Peter | Working within the cumulant expansion, I calculate the spectral signatures of this unusual regime to compare to photoemission 1 and tunneling 2 experiments, as well as the superconducting phase diagram. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2057 | Restoration of superconductivity in high magnetic fields in UTe2 | Lebed, Andrei | We improve our previous theoretical results using such a general formalism that it explains the concrete situation with the reentrant superconductivity in the above mentioned compound as well as will hopefully cover similar phenomena, which can be discovered in other Q2D superconductors. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2058 | Prediction of phonon-mediated high-TC superconductivity in monolayer Mg2B4C2 | Singh, Sobhit; Romero, Aldo; Mella, José; Eremeev, Vitalie; Munoz, Enrique; Alexandrova, Anastassia; Rabe, Karin; Vanderbilt, David; Muñoz, Francisco | We theoretically design a novel two-dimensional material – Mg 2B 4C 2, which is predicted to exhibit superconductivity with critical temperature T C estimated in the 67-84 K range (predicted using the isotropic Migdal-Eliashberg theory) without any tuning of external parameters such as doping, strain, or substrate-induced effects. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2059 | Defect Structures and properties of MgB2 wires and bulks with O2 and Dy2O3 doping | Sumption, Mike | Defect Structures and properties of MgB2 wires and bulks with O2 and Dy2O3 doping | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2060 | Surface s-wave superconductivity for oxide-terminated infinite-layer nickelates | Wu, Xianxin; Jiang, Kun; Di Sante, Domenico; Hanke, Werner; Schnyder, Andreas; Hu, Jiangping; Thomale, Ronny | From a strong-coupling analysis, we obtain dominant extended s-wave superconductivity for the surface layer, as opposed to d-wave for the bulk. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2061 | The influence of magnetic impurities on superconductivity in the high entropy alloys [TaNb]1-x(TiZrHf)x | Nelson, William; Baumbach, Ryan | Here we report results for examples where Gd is substituted into the lattice in small amounts. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2062 | Intrinsic Superconductivity in Quasiperiodic Systems | Matsumura, Chris; Rai, Gautam; Haas, Stephan; Jagannathan, Anuradha | We consider the hopping model in which the amplitudes can take two possible values t A and t B. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2063 | Unusual Sn State in the Superconducting Disordered Selenide Ag1-xSn1+xSe2 | Oudah, Mohamed; Lado, Jose; Kitao, Shinji; McNally, Graham; Küster, Kathrin; Seto, Makoto; Bonn, Douglas; Keimer, Bernhard; Sigrist, Manfred; Sawatzky, George; Takagi, Hidenori | We investigate the NaCl-type superconducting series Ag 1-xSn 1+xSe 2 by means of XPS and Mössbauer spectroscopy. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2064 | Ion Beam Induced Damage in MgB2 Thin Films | Kasaei, Leila; Hijazi, Hussein; Sah, Raj; Paudel, Jay; Yang, Hongbin; Yang, Weibing; Gustafsson, Torgny; Chen, Ke; Xi, Xiaoxing; Batson, Philip; Gray, Alexander; Feldman, Leonard | We report new studies that illuminate the physics of the superconducting (S) to normal (N) transition associated with the ion bombardment of MgB 2. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2065 | Predicted Nearly Room Temperature Superconductivity in Binary Metal Hydride Systems | Chen, Tianran; Yildirim, Taner | In this work, we have developed a super-efficient and fast method for searching high-T c hydride superconductors. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2066 | Multimodal sub-kelvin synchrotron diffraction as a probe of the origin of nematic pinning in the candidate topological superconductor Sr0.1Bi2Se3 | Smylie, Matthew; Islam, Zahirul; Rosenkranz, Stephan; Dans, Jared; Gu, Genda; Kwok, Wai-Kwong; Welp, Ulrich | Here, we present multimodal synchrotron diffraction measurements down to ~0.7 K on a single crystal of Sr 0.1Bi 2Se 3 combining in-situ resistivity measurements and XRD. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2067 | Pressure-induced superconductivity in novel polymorphic phase of BaCu2As2 (Z=10) | Wu, Zheng; Deng, Liangzi; Huyan, Shuyuan; Chu, Paul C. W.; Wu, Hanlin; Li, Sheng; Lv, Bing | Pressure-induced superconductivity in novel polymorphic phase of BaCu2As2 (Z=10) | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2068 | Kondo effect in sputtered Nb films | Zeng, Hansong; Zhou, Dan; Liang, Guoqing; Tang, Rujun; Hang, Zhi; Hu, Zhiwei; Pei, Zixi; Ling, Xinsheng | We report a transport anomaly in sputtered niobium films after annealing in nitrogen or argon. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2069 | Giant Grüneisen parameter in a superconducting quantum paraelectric | Franklin, Jacob; Xu, Bochao; Mahabir, Aditi; Balatsky, Alexander; Aschauer, Ulrich; Sochnikov, Ilya | Here, we report theoretically and experimentally evaluated Grüneisen parameters whose divergent giant values under tensile stress indicate that the dominant phonon mode which enhances the superconducting order is the ferroelectric transverse soft phonon mode. | Session 152: MgB2, Complex Compounds, Organics, and Other Superconductors |
| 2070 | Bad Metals and Planckian Metals: DMFT, SYK and physical realisations | Georges, Antoine | I will review recent work on these questions in the context of Dynamical Mean Field Theory and Sachdev-Ye-Kitaev models, as well as other analytical and computational approaches, assessing what is established at this point and which questions are still open. | Session 153: Precision Many-Body Physics: Real Materials |
| 2071 | Effect of charge self-consistency in DFT+DMFT calculations for complex transition metal oxides | Hampel, Alexander; Beck, Sophie; Ederer, Claude | We investigate the effect of charge self-consistency (CSC) in density-functional theory plus dynamical mean-field theory calculations compared to simpler “one-shot” calculations for materials where interaction effects lead to a strong redistribution of electronic charges between different orbitals or between different sites. | Session 153: Precision Many-Body Physics: Real Materials |
| 2072 | e-DMFT Study of Filled Skutterudite CeGe4Pt12 at Finite Temperatures | Quader, Khandker; Pascut, Gheorghe; Widom, Michael; Haule, Kristjan | We present results of self-consistent embedded-dynamical mean field theory (e-DMFT) calculations on the rare-earth filled skutterudite CeGe 4Pt 12, with f-electron correlations, across a wide range of temperature. | Session 153: Precision Many-Body Physics: Real Materials |
| 2073 | Origin of metal-insulator transitions in correlated perovskites – a combined DFT+U and QMC investigation | Bennett, Michael; Hu, Guoxiang; Wang, Guangming; Heinonen, Olle; Kent, Paul; Krogel, Jaron; Ganesh, Panchapakesan | We use DFT methods along with explicitly correlated diffusion Monte Carlo to test these hypotheses and compare to experiments where possible. | Session 153: Precision Many-Body Physics: Real Materials |
| 2074 | Probing charged biexciton through controlled many-body interaction | Chatterjee, Suman; Das, Sarthak; Taniguchi, Takashi; Watanabe, Kenji; Majumdar, Kausik | In this work, using hBN-capped monolayer WS 2 placed on a metallic back reflector, we demonstrate the manipulation of the charged biexciton kinetics through systematic gate voltage and temperature-dependent variation of the relationship between the exciton and charged biexciton PL peak intensities. | Session 153: Precision Many-Body Physics: Real Materials |
| 2075 | Persistent Friedel oscillations in Graphene due to a weak magnetic field | Wang, Ke; Raikh, Mikhail; Sedrakyan, Tigran | Here we show that a weak uniform magnetic field affects the Friedel oscillations in an anomalous way. | Session 153: Precision Many-Body Physics: Real Materials |
| 2076 | Ab Initio Many-Body Treatment of Interlayer Excitons in Mg2TiO4 Thin Films | Eltinge, Stephen; Shin, Kidae; Lee, Sangjae; Shin, Hyungki; Jiang, Juan; Hong, Hawoong; Davidson, Bruce; Zou, Ke; Ahn, Charles; Walker, Frederick; Ismail-Beigi, Sohrab | We review the structure of these thin films and report on many-body calculations of their electronic excitations. | Session 153: Precision Many-Body Physics: Real Materials |
| 2077 | Ab Initio Full Cell GW+DMFT for Correlated Materials | Zhu, Tianyu; Chan, Garnet | We present a method to achieve this goal through a new ab initio formulation of dynamical mean-field theory (DMFT). | Session 153: Precision Many-Body Physics: Real Materials |
| 2078 | Spectral properties of the interacting homogeneous electron gas from algorithmic inversion | Chiarotti, Tommaso; Marzari, Nicola; Ferretti, Andrea | Despite its simplicity, the interacting homogeneous electron gas is a paradigmatic test case in the study of the electronic structure of condensed matter. | Session 153: Precision Many-Body Physics: Real Materials |
| 2079 | Scattering of magnons at graphene quantum-Hall-magnet junctions | Wei, Nemin; Huang, Chunli; MacDonald, Allan | Motivated by recent non-local transport studies of quantum-Hall-magnet (QHM) states formed in monolayer graphene’s N = 0 Landau level (Wei et.al Science 362, 229-233; Zhou et.al Nature Physics 16, 154–158(2020)), we study the scattering of QHM magnons by gate-controlled junctions between states with different integer filling factors \nu. | Session 153: Precision Many-Body Physics: Real Materials |
| 2080 | A comparison of computed and experimental neutron diffraction intensity at large momentum for MnO and NiO | Munoz, Alexander; Kish, Lazar; Lu, Kannan; Heitmann, Thomas; MacDougall, Greg; Wagner, Lucas | In this talk, I will show our careful comparison between experimentally measured magnetic neutron intensities and three levels of ab initio theory: density functional theory in two approximations, and diffusion Monte Carlo. | Session 153: Precision Many-Body Physics: Real Materials |
| 2081 | Temperature – Correlation Phase Diagram for LaNiO2 : an eDMFT perspective | Quader, Khandker; Pascut, Gheorghe; Haule, Kristjan | Using the prototypical LaNiO 2 crystal structure we propose a temperature-correlation phase diagram. | Session 153: Precision Many-Body Physics: Real Materials |
| 2082 | Real-time Equation of Motion Coupled Cluster Green’s Function Approach for Satellite Peaks in XPS | Vila, Fernando; Rehr, John; Kowalski, Karol; Peng, Bo | Here we present a new, efficient extension of the approach to CC doubles implemented in NWChem, where code for each matrix element is generated with the Tensor Contraction Engine. | Session 153: Precision Many-Body Physics: Real Materials |
| 2083 | Precursors to Exciton Condensation in Quantum Hall Bilayers | Eisenstein, James | In this talk I will report on recent experiments which shed new light on the transition. | Session 154: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2084 | Duality in Quantum Hall Compressible States | Fradkin, Eduardo | In a recent paper (Hart Goldman and Eduardo Fradkin, PRB 98, 165137 (2018)) we used the recently developed dualities of Dirac fermions (D. T. Son Phys. | Session 154: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2085 | Probing composite fermions and other exotic states in dilute 2D systems | Shayegan, Mansour | We present our latest experimental results on composite fermions and other interaction-induced phases, such as Wigner crystal, in very dilute 2D electron and hole systems. | Session 154: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2086 | New developments in parton theory of the fractional quantum Hall effect | Jain, Jainendra | Theory suggests that a non-Abelian "221" state may appear at ν=1/2 in bilayer and trilayer graphene [6]. | Session 154: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2087 | New unconventional plasmons in the N=1 Landau level | Du, Lingjie | New unconventional plasmons in the N=1 Landau level | Session 154: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2088 | Geometry and black holes in periodically driven critical quantum systems | Lapierre, Bastien; Choo, Kenny; Moosavi, Per; Tiwari, Apoorv; Tauber, Clément; Neupert, Titus; Chitra, Ramasubramanian | In this talk I will discuss such an exceptional class in periodically driven critical (1+1)-dimensional systems with a spatially modulated time-evolution operator described by a conformal field theory (CFT). | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2089 | Floquet prethermalization and Rabi oscillations in optically excited Hubbard clusters | Okamoto, Junichi; Peronaci, Francesco | In this work, we have investigated the optically excited Hubbard clusters by exact diagonalization. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2090 | Introduction to the Influence matrix approach to many-body Floquet Dynamics | Sonner, Michael; Lerose, Alessio; Abanin, Dmitry | In this work, we introduce an approach to study quantum many-body dynamics, inspired by the Feynman-Vernon influence functional. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2091 | Thermalization dynamics in many-body Floquet dynamics via the influence matrix approach | Lerose, Alessio; Sonner, Michael; Abanin, Dmitry | The influence matrix approach to quantum many-body dynamics aims at describing the effect of a system on the non-equilibrium evolution of a local subsystem. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2092 | Statistical Floquet prethermalization of the Bose-Hubbard model | Dalla Torre, Emanuele | Here, we develop a semiclassical description of Floquet prethermal states and link the suppressed heating rate to the low probability of finding many particles on a single site. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2093 | Higher-order and fractional discrete time crystals in clean long-range interacting systems | Pizzi, Andrea; Knolle, Johannes; Nunnenkamp, Andreas | Here we show that a clean spin-1/2 system in the presence of long-range interactions and transverse field can sustain a huge variety of different ‘higher-order’ discrete time crystals with integer and, surprisingly, even fractional n>2. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2094 | Entanglement negativity at the critical point of measurement-driven transition | Shi, Bowen; Dai, Xin; Lu, Yuan-Ming | We study the entanglement behavior of a random unitary circuit punctuated by projective measurements at the measurement-driven phase transition in one spatial dimension. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2095 | Measurement induced phase transition in a solvable all-to-all Brownian circuit model | Sahu, Subhayan; Bentsen, Gregory; Swingle, Brian | Here we study this phenomenon in an all-to-all Brownian hybrid circuit model of qubits that is analytically tractable at large N. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2096 | Non-equilibrium steady state solutions of time-periodic driven Luttinger liquids | Fazzini, Serena; Chudzinski, Piotr; Dauer, Christoph; Schneider, Imke; Eggert, Sebastian | In order to study the interplay of many-body correlations with time-periodic driving we now consider a Tomonaga-Luttinger liquid with periodically changing interactions in the steady state, which is proposed to be realized by an interacting Bose gas confined to a one-dimensional Lieb-Liniger model. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2097 | Characterizations of prethermal states in periodically driven many-body systems with unbounded chaotic diffusion | Rajak, Atanu; Dana, Itzhack; Dalla Torre, Emanuele | We introduce well-defined characterizations of prethermal states in realistic periodically driven many-body systems with unbounded chaotic diffusion of the kinetic energy. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2098 | Dynamical signatures of Floquet topological phases in quantum computing | Su, Kaixiang; Lo, Po-Wei; Lawler, Michael | We propose a scheme to simulate and characterize the many body Floquet systems on a near-term quantum computer. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2099 | Experimental Realization of Spin Liquids in a Programmable Quantum Device | Zhou, Shiyu; Green, Dmitry; Dahl, Edward; Chamon, Claudio | In the process of doing so, we identify additional features that a programmable device of this sort would need in order to implement fully functional topological qubits. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2100 | Self-Organized Error Correction in Random Unitary Circuits with Measurement | Fan, Ruihua; Vijay, Sagar; Vishwanath, Ashvin; You, Yizhuang | In this talk, we will the subthermal volume law phase and its connection to quantum error-correcting codes. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2101 | Spin Squeezing as a Probe of Quantum Materials | Nikolov, Ilija; Del Maestro, Adrian; Ramanathan, Chandrasekhar; Mitrovic, Vesna | We present a novel Nuclear Magnetic Resonance (NMR) method based on using nuclear spin squeezed states to locally probe emergent orders in quantum materials (e.g. orbital order). | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2102 | Non-unitary dynamics in N-qubit quantum circuits and its link with complex temperature statistical mechanics of the Ising Model | Basu, Sankhya; Gopalakrishnan, Sarang; Oganesyan, Vadim; Hooley, Christopher | This talk primarily focuses on the relationship between non-unitary dynamics of a N-qubit quantum circuits with measurement and the spin-spin correlations of the N-leg Ising ladder at complex temperatures. | Session 155: Periodically Driven Systems and Quantum Simulation |
| 2103 | Navier-Stokes flows meet topological electronics | Hasdeo, Eddwi; Idrisov, Edvin; Ekström, Johan; Schmidt, Thomas | In this work, we derive novel Navier-Stokes equations governing the electron flow in the presence of Berry curvature and discuss possible transport consequences of hydrodynamics meeting topology. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2104 | Fragile topological flat bands through adatom superlattice engineering on graphene | Skurativska, Anastasiia; Tsirkin, Stepan; Natterer, Fabian; Neupert, Titus; Fischer, Mark | Here, we propose a single graphene sheet with adatoms periodically placed on top as an alternative system that realizes flat bands. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2105 | Genuine non-Abelian Berry phase in inhomogeneously strained moir\’e pattern | Zhai, Dawei; Yao, Wang | We present a framework to describe massive Dirac fermions in such distorted moir\’e patterns of transition metal dichalcogenides homobilayers, accounting for the dynamics of layer pseudospin [1]. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2106 | Plasmon modes of topological-state networks in twisted bilayer graphene | Vermilyea, Brian; Fogler, Michael | We formulate a theoretical model describing propagation of plasmons along one-dimensional links and their scattering at the nodes of such a network. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2107 | Chirality in twisted bilayer graphene | Stauber, Tobias; González, José; Low, Tony; Gomez Santos, Guillermo | We derive a simple formula for the real-space chirality of twisted bilayer graphene and observe a sign-change due to an emergent C 6-symmetry. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2108 | Symmetry breaking, strain solitons and mechanical edge modes in two dimensional crystals | Chiel, Joshua; Yu, Josephine; Mathur, Harsh; Narayan, Onuttom | We develop a continuum elasticity model in which the basic degree of freedom is the relative displacement of the two layers. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2109 | Quantum Transport in Graphene-Based Heterojunctions | Taqieddin, Amir; Aluru, N. | In this work, we investigate the electronic structure and conductance of semiconducting strained 1D and 2D GNR heterojunctions with emergent topological states. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2110 | Optical Properties of Twisted Bilayer Transition Metal Dichalcogenides from the Bethe-Salpeter Equation | Scharnke, Miriam; Aghajanian, Martik; Vitale, Valerio; Atalar, Kemal; Mostofi, Arash; Lischner, Johannes | We present results for optical properties of twisted transition metal dichalcogenide homo- and heterobilayers, such as absorption spectra and exciton binding energies, and discuss their dependence on the chemical composition of the constituent monolayers and the twist angle between them. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2111 | Flat band topology of magic-angle graphene on a transition metal dichalcogenide | Wang, Tianle; Bultinck, Nick; Zaletel, Michael | We consider twisted bilayer graphene on a transition metal dichalcogenide substrate, where proximity-induced spin-orbit coupling significantly alters the eight flat bands which occur near the magic angle. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2112 | Orbital Chern insulator states in twisted monolayer-bilayer graphene and electrical switching of topological and magnetic order | Polshyn, Hryhoriy; Zhu, Jihang; Kumar, Manish; Zhang, Yuxuan; Yang, Fangyuan; Tschirhart, Charles; Serlin, Marec; Watanabe, Kenji; Taniguchi, Takashi; MacDonald, Allan; Young, Andrea | We experimentally investigate narrow and topologically nontrivial moiré minibands hosted by van der Waals heterostructures consisting of a graphene monolayer rotationally faulted with respect to a Bernal-stacked bilayer. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2113 | Two-dimensional MX family of Dirac materials and quantum spin Hall insulators with tunable electronic and topological properties | Zhang, Yan-Fang; Pan, Jinbo; Banjade, Huta; Yu, Jie; Lin, Hsin; Bansil, Arun; Du, Shixuan; Yan, Qimin | A novel class of two dimensional MX (M=Be, Mg, Zn and Cd, X = Cl, Br and I) compounds with an unbalanced chemical formula was proposed by using data-driven method and first-principle calculations, exhibiting Dirac states with ultra-high Fermi velocities emerged from the interplay of incomplete charge transfer and hexagonal bipartite lattice. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2114 | Deep Moiré Potentials in Twisted TMD heterobilayers | Shabani, Sara; Halbertal, Dorri; Wu, Wenjing; Chen, Mingxing; Liu, Song; Hone, James; Yao, Wang; Basov, Dmitri; Zhu, Xiaoyang; Narayan, Abhay | We investigated the structural and electronic properties of nearly R-stacked (0 degree) and H-stacked (60 degrees) at small twist angles. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2115 | First-Principles Study on the Electronic Structure and Topological Properties of Heavy-Element-Decorated α-Graphdiyne | Kim, Woochang; Choi, Young Woo; Choi, Hyoung Joon | In this talk, we study the electronic structure and topological properties of heavy-element-decorated α-graphdiyne using first-principles density functional theory calculations. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2116 | Electronic properties in twisted transition metal dichalcogenides in the large Moiré wavelength limit | Shi, Qianhui; Shabani, Sara; Wang, Zhiying; Wu, Wenjing; Kwock, Kevin; Xu, Xinyi; Liu, Song; Taniguchi, Takashi; Watanabe, Kenji; Hone, James; Narayan, Abhay; Dean, Cory | Here, we present studies on twisted WSe 2/MoSe 2 bilayers with Moiré wavelengths larger than 10 nm, which gives rise to an even smaller flatband width. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2117 | Chemical trends in homo- and hetero- twisted bilayer transition metal dichalcogenides from ab-initio tight-binding | Vitale, Valerio; Atalar, Kemal; Mostofi, Arash; Lischner, Johannes | We present results for the band structures of different homo- and hetero-tBL-TMDs and discuss the dependence on twist angle and chemistry of the constituent monolayers. | Session 156: Topological Phenomena in 2D Materials and Physics in Moire Systems |
| 2118 | Strong Superexchange in a d9-δ Nickelate Revealed by Resonant Inelastic X-Ray Scattering | Dean, Mark; Villar Arribi, Pablo; Fabbris, Gilberto; Botana, Antia; Meyers, Derek; Miao, Hu; Shen, Yao; Mazzone, Daniel; Feng, Jiatai; Chiuzbaian, Sorin; Nag, Abhishek; Walters, Andrew; Garcia-Fernnandez, Mirian; Zhou, Ke-jin; Pelliciari, Jonathan; Jarrige, Ignace; Freeland, John; Zhang, Junjie; Mitchell, John; Bisogni, Valentina; Liu, xuerong; Norman, Michael; Lin, Jiaqi | We address this question using Ni L-edge and O K-edge spectroscopy of the reduced trilayer nickelate d 9-1/3 La 4Ni 3O 8 and associated theoretical modeling. | Session 157: Superconductivity in Nickelates |
| 2119 | Atomic Lattice and Electronic Structure of Superconducting Nickelate Thin Films | Goodge, Berit; Li, Danfeng; Lee, Kyuho; Osada, Motoki; Wang, Bai Yang; Hwang, Harold; Fitting Kourkoutis, Lena | Here, we harness atomic-scale scanning transmission electron microscopy (STEM) and localized electron energy loss spectroscopy (EELS) to explore both the lattice and electronic structure across a wide series of nickelate thin films. | Session 157: Superconductivity in Nickelates |
| 2120 | Superconducting Dome and Electronic Structure of the Nickelate Superconductors | Li, Danfeng; Lee, Kyuho; Wang, Bai Yang; Osada, Motoki; Harvey, Shannon; Goodge, Berit; Lee, Hye Ryoung; Hikita, Yasuyuki; Fitting Kourkoutis, Lena; Hwang, Harold | In this talk, we present our observation of superconductivity in an infinite-layer nickelate thin film synthesized by a soft-chemistry approach 1, and the study of its superconducting phase diagram 2. | Session 157: Superconductivity in Nickelates |
| 2121 | Penetration depth measurements of infinite-layer nickelates | Harvey, Shannon; Wang, Bai Yang; Li, Danfeng; Osada, Motoki; Lee, Kyuho; Harbola, Varun; Crossley, Samuel; Hwang, Harold | In this talk, I will present our measurements of the in-plane penetration depth of (Nd,Sr)NiO 2 thin films across the doping-dependent superconducting dome [2]. | Session 157: Superconductivity in Nickelates |
| 2122 | Transport Characterization of Infinite Layer Nickelate Superconductors | Wang, Bai Yang; Li, Danfeng; Goodge, Berit; Lee, Kyuho; Osada, Motoki; Harvey, Shannon; Fitting Kourkoutis, Lena; Beasley, Malcolm; Hwang, Harold | As a step in this direction, we investigate and report the magnetotransport properties of nickelates in both the normal and superconducting state, with a focus on the anisotropic upper critical field. | Session 157: Superconductivity in Nickelates |
| 2123 | Towards Higher-Crystallinity Superconducting Infinite-Layer Nickelates | Lee, Kyuho; Li, Danfeng; Osada, Motoki; Wang, Bai Yang; Goodge, Berit; Fitting Kourkoutis, Lena; Hwang, Harold | After careful optimization of the growth and reduction conditions, we have identified key parameters for further improving crystallinity and established a reproducible method to stabilize Nd 1–xSr xNiO 2 (001) epitaxial thin films on SrTiO 3 (001) substrate by pulsed-laser deposition and CaH 2-assisted topochemical reduction. | Session 157: Superconductivity in Nickelates |
| 2124 | Magnetic Excitations in Infinite-layer Nickelates | Lu, Haiyu; Rossi, Matteo; Nag, Abhishek; Osada, Motoki; Li, Danfeng; Wang, Bai Yang; Garcia-Fernnandez, Mirian; Agrestini, Stefano; Shen, Zhixun; Been, Emily; Moritz, Brian; Devereaux, Thomas; Zaanen, Jan; Hwang, Harold; Zhou, Ke-jin; Lee, Wei-Sheng | Here, we studied the magnetic excitations in infinite-layer nickelates by resonant inelastic x-ray scattering (RIXS) at the Ni L 3-edge. | Session 157: Superconductivity in Nickelates |
| 2125 | Spin dynamics in polycrystalline LaNiO2+δ | Hepting, Matthias; Ortiz, Roberto; Puphal, Pascal; Kremer, Reinhard; Isobe, Masahiko; Keimer, Bernhard | We find that gradual reduction towards the stoichiometric LaNiO 2 phase leads to a strong enhancement of the susceptibility with emerging signatures of spin glass-like dynamics. | Session 157: Superconductivity in Nickelates |
| 2126 | Magnetic exchange coupling in theoretically-designed cuprate-analog d9 nickelates | Nomura, Yusuke; Nomoto, Takuya; Hirayama, Motoaki; Arita, Ryotaro | Motivated by the discovery of superconductivity in doped nickelate R 1-xSr xNiO 2 ( R=Nd, Pr), we study the magnetic exchange coupling J in layered d 9 nickelates, which would serve as cuprate-analog materials in the Mott-Hubbard regime. | Session 157: Superconductivity in Nickelates |
| 2127 | Orbital and spin character of doped carriers in infinite-layer nickelates | Rossi, Matteo; Lu, Haiyu; Nag, Abhishek; Li, Danfeng; Osada, Motoki; Lee, Kyuho; Wang, Bai Yang; Agrestini, Stefano; Garcia-Fernnandez, Mirian; Chuang, Yi-De; Shen, Zhixun; Hwang, Harold; Moritz, Brian; Zhou, Ke-jin; Devereaux, Thomas; Lee, Wei-Sheng | Here, we use a combination of x-ray absorption spectroscopy (XAS), resonant inelastic x-ray scattering (RIXS) and multiplet calculations to determine the dominant configuration of doped holes in Nd 1-xSr xNiO 2. | Session 157: Superconductivity in Nickelates |
| 2128 | Superconducting Praseodymium Nickelate Thin Films via a Soft Chemistry Approach | Osada, Motoki; Wang, Bai Yang; Harvey, Shannon; Goodge, Berit; Lee, Kyuho; Li, Danfeng; Fitting Kourkoutis, Lena; Hwang, Harold | Here we present the synthesis and properties of PrNiO 2 thin films on SrTiO 3. | Session 157: Superconductivity in Nickelates |
| 2129 | Synthesis and characterization of infinite-layer La1-xCaxNiO2 single crystals | Puphal, Pascal; Wu, Yu-Mi; Lee, Hangoo; Fuersich, Katrin; Ortiz, Roberto; Minola, Matteo; Suyolcu, Y. Eren; van Aken, Peter A.; Keimer, Bernhard; Isobe, Masahiko; Hepting, Matthias | We will present the synthesis of La 0.8Ca 0.2NiO 3 and the reduction to La 0.8Ca 0.2NiO 2, together with results from scanning transmission electron microscopy, x-ray diffraction, magnetic susceptibility, electronic transport, and Raman spectroscopy measurements. | Session 157: Superconductivity in Nickelates |
| 2130 | A substantial hybridization between correlated Ni-d orbital and itinerant electrons in infinite-layer nickelates | Zhou, Yin; Gu, Yuhao; zhu, sichen; Wang, Xiaoxuan; Hu, Jiangping; Chen, Hanghui | Previous studies show that the hybridization between Ni- ����2−��2 and rare-earth-d orbitals is very weak and thus RNiO 2 is still a promising analog of CaCuO 2. | Session 157: Superconductivity in Nickelates |
| 2131 | Tuning carrier density via magnetic correlations in NdNiO$_2$: a practical mean to resolve the nature of hole carriers | Jiang, Ruoshi; Lang, Zijian; Berlijn, Tom; Ku, Wei | Here, we examine the impacts of in-plane and out-of-plane magnetic correlations on the DFT+$U$ electronic structures, under various non-collinear thermal fluctuation. | Session 157: Superconductivity in Nickelates |
| 2132 | Where do the hole carriers reside in the new superconducting nickelates? | Lang, Zijian; Jiang, Ruoshi; Ku, Wei | Tracing the microscopic origin of this unexpected result to the lack of apical oxygen in this material, we proposed a route to increase superconducting temperature, and a possible new quantum phase transition absent in the cuprates. | Session 157: Superconductivity in Nickelates |