Highlights of Condensed Matter Physics (DCMP) Talks @ APS 2020 March Meeting (3)
American Physics Society (APS) March meeting is one of the largest physics meetings in the world. In 2020, the meeting was canceled due to concerns over the rapid spread of 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).
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TABLE : Condensed Matter Physics (DCMP) 3
| Title | Authors | Highlight | Session | |
|---|---|---|---|---|
| 1998 | Assessing Polariton Amended Excited State Photophysics and Structure of Metalloporphyrins using Ultrafast and Nonlinear Optical Spectroscopy | Rury, Aaron | In this talk I present experimental results demonstrating the ways in which polariton formation amends the dynamics and structure of strongly cavity-coupled metalloporphyrin molecules. | Session 151: The Chemical Physics of Molecular Polaritons I. Photophysics |
| 1999 | Optical activity from exciton Aharonov-Bohm effect: a Floquet engineering approach | Schwennicke, Kai | More specifically, we consider an isotropic ensemble of small cyclic molecular aggregates in solution whose local low-frequency vibrational modes are driven by a continuous-wave infrared pump. | Session 151: The Chemical Physics of Molecular Polaritons I. Photophysics |
| 2000 | Controlling Coherent Light-Matter Interactions in Semiconductors | Deng, Hui | As we develop means to control the properties of light, matter and their interactions, intriguing new phenomena emerge. | Session 151: The Chemical Physics of Molecular Polaritons I. Photophysics |
| 2001 | Topological polaritons and magneto-optical materials | Pannir Sivajothi, Sindhana Selvi; Yuen-Zhou, Joel | Our work aims to understand the fundamental features for a system to exhibit topological polaritons. | Session 151: The Chemical Physics of Molecular Polaritons I. Photophysics |
| 2002 | Quantum optics with molecules | Genes, Claudiu | We analytically describe aspects such as: polariton asymmetry, molecular branching ratio modification in the Purcell regime and cavity-mediated donor-acceptor FRET processes. | Session 151: The Chemical Physics of Molecular Polaritons I. Photophysics |
| 2003 | Calibration of long-lifetime polariton structures | Beaumariage, Jonathan; Sun, Zheng; Steger, Mark; Myers, David; Mukherjee, Shouvik; Snoke, David; Pfeiffer, Loren; West, Kenneth | In this work, we will show various measurements which demonstrate the cavity lifetime is 100 ps or more, and use this collective set of information to create an accurate calibration of the long-lifetime polariton samples. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2004 | Dynamics of an Exciton-Polariton Condensate in a Tilted Ring Microcavity | Mukherjee, Shouvik; Kozin, Valerii; Nalitov, Anton; Shelykh, Ivan; Sun, Zheng; Myers, David; Ozden, Burcu; Beaumariage, Jonathan; Pfeiffer, Loren; West, Kenneth; Daley, Andrew; Snoke, David | We have created polariton condensates in a semiconductor microcavity with a lifetime greater than the equilibration time scale for the system at cryogenic temperature (below 10 K). | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2005 | Pushing Photons with Electrons: Observation of the Polariton Drag Effect | Yao, Qi; Myers, David; Ozden, Burcu; Beaumariage, Jonathan; Pfeiffer, Loren; West, Kenneth; Snoke, David | Experimentally, this condensate can be generated by pumping light into a microcavity structure with quantum wells at the antinodes of the light field, and then we can measure the the energy, real-space and momentum-space distributions of the polaritons using the light they emit, using conventional optical methods. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2006 | Observation of the amplitude mode in a microcavity polariton condensate driven by quantum fluctuations | Steger, Mark; Hanai, Ryo; Edelman, Alexander; Littlewood, Peter; Snoke, David; Beaumariage, Jonathan; Fluegel, Brian; West, Kenneth; Pfeiffer, Loren; Mascarenhas, Angelo | Here we present experimental results in agreement with our theoretical analysis. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2007 | Hyperbolic phonon polaritons in calcite for nanoscale infrared confinement | Breslin, Vanessa; Ratchford, Daniel; Giles, Alexander; Dunkelberger, Adam; Owrutsky, Jeffrey | Here, we report on the observation of hyperbolic phonon-polaritons (HPhPs) in calcite nanopillar arrays, demonstrate the aspect ratio dependence of the HPhP resonance frequencies, and verify our results through comparison to an analytical model. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2008 | Creation of partially rotating vortex of polariton condensate by non-resonant Laguerre-Gaussian optical excitation in semiconductor microcavity | Choi, Daegwang; Park, Min; Oh, Byoung Yong; Kwon, Min-Sik; Park, Suk In; Kang, Hang Kyu; Kang, Sooseok; Song, Jin Dong; Choi, Hyoungsoon; Cho, Yong-Hoon | Here, we observed a new method for creating quantized vortices in the polariton superfluid whose vorticity is determine by the orbital angular momentum of a non-resonant Laguerre-Gaussian optical excitation. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2009 | Topological Surface-plasmon-polariton Modes on Biharmonic Metal-dielectric Gratings | Smith, Thomas; Principi, Alessandro | Topological Surface-plasmon-polariton Modes on Biharmonic Metal-dielectric Gratings | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2010 | Photonic crystal for graphene plasmons | Xiong, Lin; Forsythe, Carlos; Jung, Minwoo; McLeod, Alexander; Li, Yutao; Zhang, Shuai; Dong, Yinan; Liu, Song; Fogler, Michael; Edgar, James; Shvets, Gennady; Dean, Cory; Basov, Dimitri | Here we utilize cryogenic near-field optical microscopy to study the band structure induced by a graphene photonic crystal consisting of a high-mobility graphene atop a patterned SiO 2 dielectric layer [Xiong, Nat. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2011 | Plasmon resonance shift and near electric field of silver nanoparcticles: Theoretical analysis of size, shape, and aggregation effects. | Matsui, Masafuyu; Nakamura, Hisao | We develop theoretical method to analyze optical response of nanoparticles by combining with discrete dipole approximation. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2012 | Size tunable passive cloaking platform using self-assembled plasmonic nanostructures. Imran Khan,1 Arnold Kim,2 and Sayantani Ghosh1 1Department of Physics, University of California, Merced, CA 95343 USA 2Department of Applied Mathematics, Univ | Khan, Imran; D.Kim, Arnold; Ghosh, Sayantani | In this study, we present the design and fabrication of spherical nano- to micron-scale shell structures via molecular self-assembly of gold NPs, with the goal of reduced scattering and therefore, cloaking, in the VIS-NIR spectral range. | Session 152: Superlattices and Nanostructures: Polaritons and Plasmons |
| 2013 | Exploring the origin of the thickness-dependent metal-insulator transition in thin-film systems with band structures | Hahn, Sungsoo; Sohn, Byungmin; Kim, Changyoung | Here, we observed band structures of SrRuO 3 ultrathin films near the MIT-critical thickness by using in-situ angle-resolved photoemission spectroscopy (ARPES). | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2014 | Scanning tunneling spectroscopy of rare earth hexaborides | Buchsteiner, Philipp; Sohn, Florian; Harmsen, Lisa; Bloechl, Peter; Wenderoth, Martin | In order to systematically investigate the influence of 4f-electrons on the hexaboride surface physics, we performed scanning tunneling microscopy (STM) on the (001)-cleavage planes of LaB 6 [1] and PrB 6. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2015 | Synchrotron-Based Ultrafast Optical Pump/X-Ray Probe Measurements of Lattice Dynamics in Photo-Excited Pt Thin Films | DeCamp, Matthew; DiChiara, Anthony; Unruh, Karl | A synchrotron-based optical pump/x-ray probe measurement technique has been used to study the structural evolution of elemental Pt thin films following photo-excitation by ps duration optical laser pulses. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2016 | Ex-Situ Ozone Cleaning of SrTiO3 Substrates for Molecular Beam Epitaxy | Bean, Camille; Webb, Tatiana; Kang, Ruizhe; Hoffman, Jennifer | Therefore, it is critical to employ effective in-situ and ex-situ substrate cleaning techniques to ensure a clean substrate surface, which is necessary for high-quality film growth. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2017 | Benchmarking various levels of theory for first principles modeling of iron oxide surfaces and interfaces | Das, Suvadip; Manousakis, Efstratios; Medford, Andrew | Here, we present a benchmarking study for various levels of theory such as onsite Coulomb interaction, hybrid functionals and quasiparticle GW methodology to appropriately modulate surface phenomenon in oxides. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2018 | Spin Polarized Electron Emission from Magnetite Half-metals Determined by First-principles Calculations | Xu, Liangliang; Zhao, Nan; Lin, Ming-Chieh; Leung, Tsan-Chuen; Hsu, Hua-Yi | In this work, we study the electronic properties of magnetite (100), (110), and (111) surfaces using first principles or ab initio calculations based on density functional theory. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2019 | Domain Walls in the Electronic Polarization of Silver Bismuthate | Florio, Fred; Sundararaman, Ravishankar; Shi, Jian; Guo, Yuwei | Here we present structures of candidate domain walls in Ag 2BiO 3, using ab initio methods to determine the relative energies, structural displacements and charge disproportiations associated with of these domain walls. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2020 | Understanding Electrical and Thermal Transport in Single Strand Cu-Coated Carbon Fiber | Yi, Hojoon; Kim, Ji Yeon; Gul, Hamza; Kang, Seungsu; Kim, Giheon; Sim, Eunji; Ji, Hyunjin; Kim, Jungwon; Choi, Young Chul; Kim, Won Seok; Lim, Seongchu | In this study, 1ω AC current was used to analyze the electrical and thermal conductivity of single-stranded metal-coated carbon fibers with different metal thicknesses. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2021 | Structure and electronic states of Pt/SrTiO3 (001) interface using X-ray standing wave excited photoelectron emission | Chen, Yanna; Das, Anusheela; Lee, Tien-Lin; Bedzyk, Michael | In this work, we focus on Pt/SrTiO3 heterostructure to discover the interfacial interaction between metal catalysts and metal oxide supports. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2022 | Evolution of picosecond surface electric fields generated by photon-induced charge emission from La0.67Sr0.33MnO3 thin films at 300 K and 77 K | Li, Runze; Rentzepis, Peter | Evolution of picosecond surface electric fields generated by photon-induced charge emission from La0.67Sr0.33MnO3 thin films at 300 K and 77 K | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2023 | Role of substrate vicinity on structural evolution and functional properties of lightly doped La1-xSrxMnO3 thin films | Paudel, Binod; Chen, Aiping; Nakotte, Heinrich | Here, we present the study on structural and functional properties of lightly doped La 0.9Sr 0.1MnO 3 (LSMO) films on SrTiO 3 substrates with different miscut angles (0.5°, 2°, 4° and 8°). | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2024 | Surface structure determination of a two dimensional Au-Si-alloy formed on Au(110) by x-ray photoelectron spectroscopy (XPS) and x-ray photoelectron diffraction (XPD) | Schmitz, Marie; Roese, Peter; Schulte, Malte; Westphal, Carsten | Therefore, we propose a surface-structure model for the Au-Si-alloy based on our measurements and simulations. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2025 | Geometric models and electronic structure of Pb overlayers on Ge(111): a first-principles study | Childs, Andre; Acharya, Shree Ram; Le, Duy; Fong, Ching; Chiang, Shirley; Rahman, Talat | We present results from our density functional theory based calculations with and without inclusion of spin-orbit coupling (SOC) to shed light onto atomic and electronic structures of these phases and the nature of their binding to the substrate. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2026 | Giant Nonlinear Tunneling Current in HfO2-based Anti-Ferroelectric Tunnel Junction | Byun, Jinho; Min, Taewon; Lee, Jaekwang | Here, combining density functional theory (DFT) calculations and numerical tunneling current simulations of the new type of tunneling potential, we find that the antiferroelectric-like head-to-head and tail-to-tail polarizations significantly enhance the non-linearity (>10 3) and tunneling current at the same time, which will be an essential guideline to design high density and low power consumption electronics applications. | Session 153: Surfaces and Thin Films of Novel Electronic Materials |
| 2027 | Fractional Quantum Hall Effect in Weyl Semimetals | Burkov, Anton | Here we consider the situation when the interactions are not weak and ask whether it is possible to open a gap in a magnetic Weyl semimetal while preserving its nontrivial electronic structure topology along with the translational and the charge conservation symmetries. | Session 154: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 2028 | Nonlinear dynamic conductivity in structrurally chiral Weyl semimetals | Orenstein, Joseph; Rees, Dylan; Manna, Kaustuv; Lu, Baozhu; Borrmann, Horst; Felser, Claudia; Torchinsky, Darius | In this talk I will present results on PGEs in response to linear and circular polarized light (LPGE and CPGE, respectively) as probes of both the symmetry and topology of the WSM phase. | Session 154: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 2029 | Universal plateau in the thermoelectric Hall conductivity of Dirac/Weyl semimetals | Skinner, Brian; Kozii, Vladyslav; Zhang, Wenjie; Wang, Peipei; Bi, Ran; Cho, Chang-woo; Zhong, Ruidan; Schneeloch, John; Yu, Dapeng; Gu, Genda; Fu, Liang; Wu, Xiaosong; Zhang, Liyuan | I show, in particular, that the thermoelectric Hall conductivity acquires a robust plateau in the extreme quantum limit, and that the plateau value is independent of the field strength, disorder strength, carrier concentration, or carrier sign. | Session 154: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 2030 | Pseudo-electromagnetic fields in topological semimetals | Ilan, Roni | We review the different mechanisms for creating effective pseudo-fields and their observable consequences, which can be remarkably different from those resulting from external fields. | Session 154: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 2031 | Acoustics, Weyl, and chiral transport | Huber, Sebastian | Here we show how we can induce pseudo-magnetic and electric fields in acoustics, how they modify the transport of acoustic energy and what we can learn from these systems for electronic transport in Weyl semimetals. | Session 154: Unconventional Transport Phenomena in Three-Dimensional Dirac and Weyl Semimetals |
| 2032 | Stable White Light-Emitting Diodes using Metal Halide Perovskites | Adhikari, Gopi; Thapa, Saroj; Zhu, Hongyang; Zhu, Peifen | Here, we report on the transformation of lead halide perovskite NCs to lead depleted (by 20 %) perovskite NCs and incorporation of lead depleted perovskite NCs in the commercially available polymers. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2033 | Switchable Excitonic Circular Polarization in CdSe/CdMnS Nanoplatelets with Bilayer Core and Magnetically Doped Shell | Najafi, Arman; Tarasek, Steven; Delikanli, Savas; Zhang, Peiyao; Norden, Tenzin; Shendre, Sushant; Sharma, Manoj; Bhattacharya, Arinjoy; Taghipour, Nima; Pientka, James; Demir, Hilmi; Petrou, Athos; Thomay, Tim | We have utilized time-resolved photoluminescence (TRPL) to study the excitonic circular polarization from CdSe/CdMnS core/shell nanoplatelets (NPLs) with a bilayer core. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2034 | Controlling Linear and Nonlinear Optical Properties of Boron Nitride with Moiré Superlattices | Moore, Samuel; Finney, Nate; Yao, Kaiyuan; McGilly, Leo; Ni, Guangxin; Telford, Evan; Schuck, P. James; Dean, Cory; Hone, James; Narayan, Abhay; Basov, Dmitri | In this work, we use conventional dry-transfer techniques to fabricate small-twist-angle few-layer hexagonal boron nitride (hBN) heterostructures. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2035 | Photoluminescence study of non-polar m-plane InGaN and near strain-balanced AlGaN/InGaN superlattices | Cao, Yang; Senichev, Alexander; Dzuba, Brandon; Nguyen, Trang; Manfra, Michael; Malis, Oana | We present the first detailed study of the temperature-dependence of photoluminescence (PL) from m-plane bulk In xGa 1-xN (x<0.25) layers and near strain-balanced AlGaN/InGaN superlattices grown by plasma-assisted molecular-beam epitaxy on free standing m-plane GaN substrates. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2036 | Backward output-side-grooves regulated light wave resonance in a subwavelength metallic slit and an ultrahigh energy accumulator | Hong, Jian-Shiung; Chen, Kuan-Ren | For another arrangement of the grooves, we find that the wave reflection inside the slit is raised up to 100% due to backward coupling. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2037 | Nonreciprocal spatio-temporal modulated metasurfaces | Dalvit, Diego Alejandro; Cardin, Andrew; Silva, Sinhara; Vardeny, Shai; Padilla, Willie; Saxena, Avadh; Taylor, Antoinette; De Melo Kort-Kamp, Wilton; Chen, Hou-Tong; Azad, Abul | In this talk I will report our recent theory and experimental advances in STMMs for dynamical wave-front shaping and nonreciprocal propagation of free space electromagnetic waves. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2038 | Bright magnetic dipole radiation from two-dimensional lead halide perovskites | DeCrescent, Ryan; Venkatesan, Naveen; Dahlman, Clayton; Kennard, Rhiannon (Rhys); Zhang, Xie; Li, Wenhao; Du, Xinhong; Chabinyc, Michael; Zia, Rashid; Schuller, Jon | Here, using energy-momentum spectroscopies, we demonstrate that the ED approximation insufficiently describes light-matter interactions in 2D HOIPs. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2039 | Photon circulation in photonic structures integrated with quantum dots – a consequence of multi-path geometry | Dugar, Palak; Scheibner, Michael; Chien, Chih-Chun | We show that even without any artificial gauge field, by using multiple path geometry such as, that of a triangle and the quantum nature of bosonic particles, the steady state photonic current can circulate in a photonic structure integrated with quantum dots. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2040 | Temperature-dependent photoluminescence of carbon quantum dots | Salazar, Hernanie; Jang, Der-Jun; Mai, Xuan-dung; Ng, Kuong-Ngai; Chang, Che-yu; Perez, Phoebe Nicole; Jusi, Arvin Lester; Sarmago, Roland; Tu, Li-Wei; Yeh, Wang-Chi; Chuang, Feng-chuan; Lee, Meng-En | Temperature-dependent photoluminescence of carbon quantum dots | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2041 | Ultra-thin film nanophotonics device on various optics application | Tang, Haoning; Bias, Eric | Ultra-thin film nanophotonics device on various optics application | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2042 | Extraordinary Transmission in Coupled Nano-Bridged Nanosphere Quasi-Complimentary Arrays | Dodge, Tyler; Luo, Lingpeng; Akinoglu, Eser; Naughton, Michael; Giersig, Michael; Kempa, Krzysztof | Here, we demonstrate that the stability can be restored, with minimal loss of sensitivity, by engineering weak links between the units of a percolation system. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2043 | Exciton–phonon coupling in resonant Raman scattering: intrinsic attributes and extrinsic tunability in ZnTe of different dimensionalities | Yi, Yingyan; Marmon, Jason; Chen, Yuanping; Zhang, Fan; Sheng, Tao; Wijewarnasuriya, Priyalal S.; Zhang, Haotao; Zhang, Yong | We show that in ZnTe, in contrast to the previous reports, R21 exhibits a much larger intrinsic value and minimal change from bulk to 30 nm nanowire [1], indicating previously reported size dependences were likely affected by extrinsic mechanisms. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2044 | Analysis of χ(2) of III-V quantum-well structures using transfer matrix techniques | Foster, Natalie; Rockwell, Ann Kathryn; Bank, Seth; Downer, Michael | To isolate the N-dependent SHG polarization of the MQW layer of interest, we implemented a SHG transfer matrix formalism to model the SHG signal as a coherent superposition of a variable-N MQW layer with fixed substrate and cap layer SH polarizations. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2045 | Optically-induced dressed states in αα materials: electronic and transport properties | Iurov, Andrii; Zhemchuzhna, Liubov; Dahal, Dipendra; Gumbs, Godfrey; Huang, Danhong | We have obtained the energy dispersion relations and their wave functions for the so-called interacting Floquet states in pseudospin-1 α-T 3 materials for various value of the parameter α in the presence of an external off-resonant dressing field. | Session 155: Superlattices and Nanostructures: Optical Phenomena |
| 2046 | Collapse of the Cooper pair phase coherence length at a superconductor-to-insulator transition | Hollen, Shawna | In this talk, I will present transport experiments on two morphologies of amorphous Bi quench-condensed films patterned with a nanohoneycomb array of holes, where the holes provide an embedded probe of local phase coherence. | Session 156: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 2047 | Experimentally observed magnetic-field driven quantum phase transition in superconducting nanowires and its striking agreement with critical theory. | Rogachev, Andrey | We find that in the quantum critical regime, the electrical conductivity is in agreement with a theoretically predicted scaling function and, moreover, that the theory quantitatively describes the nonuniversal dependence of conductivity on the critical temperature, field magnitude and orientation, nanowire cross-sectional area, and microscopic parameters of the nanowire material. | Session 156: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 2048 | Theory of the pair-breaking quantum phase transition in superconducting nanowires | Del Maestro, Adrian; Gay, Frédéric; Sacépé, Benjamin; Rogachev, Andrey | We present a theoretical description of a zero temperature phase transition between superconducting and diffusive metallic states in ultra thin wires induced by Cooper pair-breaking perturbations. | Session 156: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 2049 | Low-temperature anomaly in disordered superconductors near Bc2 | Sacepe, Benjamin | In this talk I will present systematic measurements of the critical magnetic field and current on disordered superconducting films of various levels of disorder. | Session 156: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 2050 | 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 156: The Superconductor-Insulator Transition: Beyond Universal Scaling |
| 2051 | A hidden quantum phase in two-dimensional WTe2 | Wu, Sanfeng | In this talk I will introduce our recent quantum transport studies of two-dimensional WTe 2 where we discover a hidden quantum phase. | Session 157: Transport Properties of 2D Materials |
| 2052 | Anisotropic magnetotransport in few-layer Nb-doped WSe2 | Nakamura, Hiroyuki; Mohammed, Avaise; Sigle, Wilfried; Wang, Yi; Wochner, Peter; Villanova, John; Stacy, Jeb; Barraza-Lopez, Salvador; Churchill, Hugh; van Aken, Peter; Takagi, Hidenori | Anisotropic magnetotransport in few-layer Nb-doped WSe2 | Session 157: Transport Properties of 2D Materials |
| 2053 | Observation of monolayer-like quantum transport in few-layer MoS2 | Han, Tianyi; Han, Xu; Lin, Jiangxiazi; Piot, Benjamin; Cai, Xiangbin; Pan, Ding; Liu, Junwei; Wang, Ning | Here we report the observation of monolayer-like K valley quantum transport in high quality few-layer MoS 2. | Session 157: Transport Properties of 2D Materials |
| 2054 | Preferential out-of-plane conduction and quasi-one-dimensional electronic states in layered van der Waals material 1T-TaS2 | Martino, Edoardo; Semeniuk, Konstantin; Arakcheeva, Alla; Putzke, Carsten; Moll, Philip; berger, helmuth; Batistic, Ivo; Tutiš, Eduard; Akrap, Ana; Forro, Laszlo | Motivated by the ascending strategy of functionalizing 2D materials by vertical heterostructures we initiated an in-depth study of out-of-plane charge dynamics and emergent properties arising from interlayer coupling. | Session 157: Transport Properties of 2D Materials |
| 2055 | Band filling and cross quantum capacitance in ion gated semiconducting transition metal dichalcogenide monolayers | Zhang, Haijing; Berthod, Christophe; berger, helmuth; Giamarchi, Thierry; Morpurgo, Alberto | Here we present a thorough analysis of charge accumulation in MoSe 2 and WSe 2 monolayers. | Session 157: Transport Properties of 2D Materials |
| 2056 | 2e charge transport in a quantum Hall – superconductor junction revealed by shot noise | SAHU, MANAS; Paul, Arup; Sutradhar, Jagannath; Watanabe, Kenji; Taniguchi, Takashi; Mukerjee, Subroto; Banerjee, Sumilan; Das, Anindya | By measuring shot noise, we observe the Fano factor close to unity when the bias energy is less than the superconducting gap. | Session 157: Transport Properties of 2D Materials |
| 2057 | Direct measurement of layer polarizability in a van der Waals ferroelectric semimetal | Cao, Qingrui; De La Barrera, Sergio; Bheemarasetty, Vineetha; Yan, Jiaqiang; Xiao, Di; Gao, Yang; Hunt, Benjamin | Here, we detect and quantify the ferroelectricity by layer-resolved capacitance measurements [2] in dual-gated bilayer WTe 2, allowing us to control applied electric field and charge density independently. | Session 157: Transport Properties of 2D Materials |
| 2058 | Electron-phonon scatterings and their roles in vertical charge transport through van der Waals heterostructures | Jung, Suyong | Here, we report electron tunneling measurements with a semiconducting transition metal dichalcogenide, WSe 2, as the tunnel medium. | Session 157: Transport Properties of 2D Materials |
| 2059 | Orientation-dependent transport and Goos-Hanchen effect in phorsphorene | Ruigang, LI; Chan, Kwok Sum; Lin, Zijing | By using the continuum model, we systematically investigate the transport property in the phorsphorene NPN junction. | Session 157: Transport Properties of 2D Materials |
| 2060 | Anomalous Coulomb Drag between InAs Nanowire and Graphene Heterostructures | MITRA, RICHA; SAHU, MANAS; Watanabe, Kenji; Taniguchi, Takashi; Shtrikman, Hadas; Sood, A; Das, Anindya | Here we report, Coulomb drag in a novel drag system consisting of a two-dimensional (2D) graphene and a one dimensional (1D) InAs nanowire (NW) heterostructures. | Session 157: Transport Properties of 2D Materials |
| 2061 | Gate-defined Quantum Confinement in few-layer Black Phosphorus Transistor | Yang, Jiawei; Che, Shi; Taniguchi, Takashi; Watanabe, Kenji; Moon, Seongphil; Smirnov, Dmitry; Bockrath, Marc; Chen, Ruoyu; Lau, Chun Ning | Here we demonstrate quantum confinement defined by split gate in devices based on few-layer black phosphorus. | Session 157: Transport Properties of 2D Materials |
| 2062 | Ultrafast currents in the monolayer of transition metal dichalcogenides | Oliaei Motlagh, Seyyedeh Azar; Apalkov, Vadym; Stockman, Mark | Ultrafast currents in the monolayer of transition metal dichalcogenides | Session 157: Transport Properties of 2D Materials |
| 2063 | On the nature of carrier states around the fermi level at the LAO/STO interface | chioncel, liviu; Strobl, Tobias; Sailer, Patrick; Braak, Daniel; Kopp, Thilo | We propose a minimal tight-binding one-band model for the interface layer of LAO/STO consisting of “effective” carriers (of Ti-d xy character) in random magnetic fields. | Session 157: Transport Properties of 2D Materials |
| 2064 | Electronic states and transport in graphene-TMD heterostructures | Hernández Cepeda, Nohora; Meza-Montes, Lilia; Ulloa, Sergio | We employ an effective Hamiltionian that describes the broken inversion symmetry in graphene due to the proximity of the TMD but preserves temporal inversion [1]. | Session 157: Transport Properties of 2D Materials |
| 2065 | Experimental Quantum Transport Strain Engineering in Graphene | Wei, Guoqing; McRae, Andrew; Huang, Linxiang; Champagne, Alexandre | We measure ballistic charge conductivity in strained suspended graphene and observe the theoretically predicted [1] strain-induced scalar and vector potentials. | Session 157: Transport Properties of 2D Materials |
| 2066 | Thermal Hall conductivity of spin liquids at low temperatures | Ong, N. Phuan; Czajka, Peter; Gao, Tong | I will describe results on low-temperature thermal Hall conductivity Kxy of several quantum spin liquids based on honeycomb and triangular lattices, primarilty α-RuCl 3, and Na 2BaCo(PO4) 2. | Session 158: Thermal Hall Effect in Quantum Materials |
| 2067 | Thermal Hall effect of α-RuCl3 | Hess, Christian; Gillig, Matthias; Hentrich, Richard; Caglieris, Federico; Hong, Xiaocheng; Buechner, Bernd; Roslova, Maria; Isaeva, Anna; Doert, Thomas; Brenig, Wolfram; Zotos, Xenophon; Zeitler, Uli | In this talk, I will discuss our experimental efforts to probe the elementary magnetic excitations of α-RuCl 3 by thermal transport. | Session 158: Thermal Hall Effect in Quantum Materials |
| 2068 | Giant thermal Hall conductivity in the pseudogap phase of cuprate superconductors | Grissonnanche, Gael; Legros, Anaelle; Badoux, Sven; Lefrancois, Etienne; Zatko, Victor; Lizaire, Maude; Laliberte, Francis; Gourgout, Adrien; Zhou, Jianshi; Pyon, Sunseng; Takayama, Tomohiro; Takagi, Hidenori; ono, shimpei; Doiron-Leyraud, Nicolas; Taillefer, Louis | Here we report measurements of the thermal Hall conductivity κ xy in the normal state of four different cuprates and show that a large negative κ xy signal is a property of the pseudogap phase, appearing with the onset of that phase at the critical doping p* [2]. | Session 158: Thermal Hall Effect in Quantum Materials |
| 2069 | Thermal Hall effect in quantum paramagnets and cuprates | Han, Jung Hoon | Thermal Hall effect in quantum paramagnets and cuprates | Session 158: Thermal Hall Effect in Quantum Materials |
| 2070 | Thermal Hall effect in square-lattice spin liquids: an application to cuprates | Scheurer, Mathias | In this talk, I will analyze possible mechanisms that can give rise to a thermal Hall effect in the square-lattice Heisenberg antiferromagnet [2,3]. | Session 158: Thermal Hall Effect in Quantum Materials |
| 2071 | Ultrafast X-ray Molecular Dynamics | Leone, Stephen | The method is used to investigate dissociating molecules, ring opening, passage through curve crossings and conical intersections, singlet-to-triplet transitions, and electronic and vibrational coherences. | Session 159: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 2072 | Probing the ultrafast intermediate states of a divalent cobalt-manganese complex with femtosecond M-edge XANES | Ryland, Elizabeth; Zhang, Kaili; Vura-Weis, Josh | In this work we perform ultrafast transient M-edge XANES on divalent Cobalt-Manganese(N,N,N-tri(2-(2-pyridylamino)ethyl)amine)Cl, a heterobimetallic system with directly-interacting dual metal centers held within a non-innocent ligand scaffold. | Session 159: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 2073 | Ultrafast spin cross-over dynamics in heme proteins | Chergui, Majed | Here too we establish the photocycle as a SCO event, and propose that doming is crucial for the electron transfer properties of the protein, rather than heme ruffling as previously proposed. | Session 159: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 2074 | Ultrafast X-Ray Absorption Spectroscopy as a Probe of Conical Intersection-Mediated Dynamics: Theoretical Tools and Studies | Neville, Simon | In this talk, I will present recent studies using CVS-DFT/MRCI for the exploration of the sensitivity of TRXAS to conical-intersection-mediated dynamics in a range of molecules, ranging from the disentangling of competing relaxation pathways in allene to the Jahn-Teller effect-mediated dynamics in the graphene nanoflake coronene. | Session 159: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 2075 | RIXS within the coupled-cluster framework reveals the hidden transitions of transient species in ionized liquid water | Nanda, Kaushik; Kjellsson, Ludvig; Rubensson, Jan-Erik; Doumy, Gilles; Southworth, Stephen; Ho, Phay; March, Anne; Al Haddad, Andre; Kumagai, Yoshiaki; Tu, Ming-Feng; Mohd Yusof, Muhammad Shafiq; Debnath, Tushar; Arnold, Caroline; Welsch, Ralph; Inhester, Ludger; Santra, Robin; Simon, Marc; Schlotter, William; Moeller, Stefan; Coslovich, Giacomo; Korelek, Jake; DePonte, Daniel; Loh, Zhi-Heng; Krylov, Anna; Young, Linda | We will present a novel electronic structure method within the equation-of-motion coupled cluster framework that facilitates converged calculations of the RIXS spectra for both closed- and open-shell species. | Session 159: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 2076 | Simulating Time-resolved X-ray Spectroscopy: Progress and Challenges | Penfold, Tom | Herein I will present some recent work on intersystem crossing dynamics in transition metal complexes and discuss the potential insight that could be obtained from femtosecond X-ray studies. | Session 159: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |
| 2077 | Quantitative measurements of total yields from electron stimulated desorption of ice | Ferrari, Brian; Slavicinska, Katerina; Bennett, Chris | Here, we investigated the total and relative yields from ESD on comet ice analogs in an Ultra-High Vacuum (UHV) chamber with base pressure of 3×10 -11 torr. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2078 | Investigation of atomic layer deposited amorphous alumina films for the prevention of water-based corrosion of glass | Hiebert, Miriam; Hyde, Ethan; Vicenzi, Edward; Weaver, Jamie; Phaneuf, Raymond | In this talk I’ll discuss the results of accelerated aging experiments in which ALD alumina-coated silicate glass is immersed in water at elevated temperatures and the rate of ion leaching into the water is monitored as a function of time. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2079 | Tuning single-atom electron spin resonance in a vector-magnetic field | Willke, Philip; Singa, Aparajita; Zhang, Xue; Esat, Taner; Lutz, Christopher; Heinrich, Andreas; Choi, Taeyoung | Utilizing a 2D vector magnetic field and the local stray field from the magnetic STM tip, we optimize the ESR signal and characterize the role of the tip field. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2080 | Reactive MD simulation on the formation of amorphous sub-nano alumina layer | Lu, Yuxuan; Romine, Devon; Acharya, Jagaran; Wu, Judy; Sakidja, Ridwan | In this study, we systematically performed the large-scale classical reactive molecular dynamics (MD) simulations of Atomic Layer Deposition (ALD) processes to model the formation of amorphous alumina sub-nanolayer water. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2081 | Quantum-well states and electronic coherence in bimetallic Pb/Ag thin films | Pan, Chi-Ruei; Lee, Woojoo; Shih, Chih-Kang; Chou, Mei-Yin | The excellent agreement between theory and experiment in the energy dispersion of the quantum-well states confirms the physical picture proposed in this work, which could form the basis in exploring the electronic structure in multiple stacked thin films. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2082 | Investigation of oxidation mechanisms of Pt nanoparticles in water – a molecular dynamics study | Gadelrab, Karim; Craig, Nathan | In this work, we employ molecular dynamics (MD) to capture atomic level processes of Pt extraction by O atoms from Pt(111) surface. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2083 | Atomic Defects of the Hydrogen-Terminated Silicon Surface Imaged with nc-AFM | Croshaw, Jeremiah; Dienel, Thomas; Huff, Taleana; Wolkow, Robert | Building upon these recent works we present our efforts at creating a comprehensive catalog containing many of the commonly found defects of the H:Si-100(2×1) surface. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2084 | A first-principles study of the physical properties and secondary electron emission of 4d and 5d FCC metal surfaces with and without a vacancy defect | Diaz III, Leopoldo; Sanati, Mahdi; Joshi, Ravindra | In this study we have introduced a vacancy defect to the 100, 110, 111 surfaces of the 4d and 5d FCC metals to understand the impact the defect will have on their physical properties and secondary electron emission. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2085 | Probing non-equilibrium dynamics of photoexcited polarons on a metal oxide surface with atomic precision | Guo, Chaoyu; Meng, Xiangzhi; Fu, Huixia; Wang, Qin; Meng, Sheng; Jiang, Ying | We found that the formation time of polarons becomes considerably shorter when the polaron is bound to two surface oxygen vacancies than that to one. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2086 | TDDFT approach on laser field enhancement by carbon nanotube and photo-decomposition of water | Zhang, Hong | In this presentation, we discuss field enhancement of femtosecond laser by carbon nanotubes and application to accelerating water photo-decomposition. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2087 | The dissociative adsorption of O2 on the bimetallic Pd3M2 clusters (M= Ag, Au, Co, Cu, Mn, Ni, Pt and Ru) by density functional theory | Zaman, Nusaiba; Kara, Abdelkader | We use density functional theory to systematically investigate the adsorption and reactivity of oxygen on the bimetallic Pd 3M 2 clusters (M = Ag, Au, Co, Cu, Mn, Ni, Pt, and Ru). | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2088 | Impact of solvation on the structure and reactivity of the Co3O4(001)/H2O interface: a molecular dynamics study. | Kenmoe, Stephane; Kox, Tim; Sphr, Eckhard | We use ab initio molecular dynamics to understand the effect of water, aqueous solutions and solvation on the structure and reactivity of the Co 3O 4(001) surface. | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2089 | Confined Catalysis under 2D silica: A CO Oxidation Study | Eads, Calley; Boscoboinik, J. Anibal; Head, Ashley; Stacchiola, Dario; Tenney, Samuel | Confined Catalysis under 2D silica: A CO Oxidation Study | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2090 | Probing two-dimensional ices with scanning probe microscopy | Tian, Ye; Ma, Runze; Cao, Duanyun; Zhu, Chongqin; Peng, Jinbo; Guo, Jing; Chen, Ji; Li, Xin-Zheng; Francisco, Joseph; Zeng, Xiao; Xu, Limei; Wang, Enge; Jiang, Ying | Here we report atomic-scale imaging of the edge structures of a 2D bilayer ice grown on Au(111) surface with weakly perturbative non-contact atomic force microscopy (1, 2). | Session 160: Surface Adsorption, Dynamics, and Defects |
| 2091 | Observation of the Topological Anderson Insulator in Disordered Atomic Wires | Gadway, Bryce | Here we describe how a type of synthetic lattice can be engineered for dilute atomic gases at ultracold temperatures, allowing us to mimic the physics of disordered topological materials. | Session 161: Topological States in AMO Systems |
| 2092 | Topological Phases of Interacting Fermions in Optical Lattices | Scarola, Vito; Zeng, Chuanchang; Stanescu, Tudor; Zhang, Chuanwei; Tewari, Sumanta | This talk will review studies of Hubbard-Hofstadter models in regimes revealing topological phases of ultracold fermions arising from the interplay of inter-particle interactions and synthetic fields in kagome and square optical lattices. | Session 161: Topological States in AMO Systems |
| 2093 | Topological Phase Transitions in Finite-size Systems Across Boundary Conditions | Ge, Yang; Rigol, Marcos | Topological Phase Transitions in Finite-size Systems Across Boundary Conditions | Session 161: Topological States in AMO Systems |
| 2094 | Tenfold way for quadratic Lindbladians | Lieu, Simon; McGinley, Max; Cooper, Nigel | We show that this matrix must belong to one of ten non-Hermitian Bernard-LeClair symmetry classes which reduce to the Altland-Zirnbauer classes in the closed limit. | Session 161: Topological States in AMO Systems |
| 2095 | Lattice gauge theories and string dynamics in Rydberg atom quantum simulators | Surace, Federica Maria; Mazza, Paolo Pietro; Giudici, Giuliano; Lerose, Alessio; Gambassi, Andrea; Dalmonte, Marcello | We show that Rydberg atom setups represent an ideal platform for the investigation of equilibrium and non-equilibrium properties of lattice gauge theories, by proving their equivalence to abelian (and possibly non abelian) gauge theories on the lattice. | Session 161: Topological States in AMO Systems |
| 2096 | Exact quantum many-body scar states intrinsic to periodically driven system in the Rydberg-blockaded atom chain | Sugiura, Sho; Kuwahara, Tomotaka; Saito, Keiji | Here we discuss the violation of the Floquet ETH with realistic Hamiltonians. | Session 161: Topological States in AMO Systems |
| 2097 | Exact quantum many-body scar states in the two-dimensional PXP model and their dynamical signatures | Lin, Cheng-Ju; Calvera, Vladimir; Hsieh, Timothy | As a manifestation of these scar states, we propose a quench experiment starting from a charge-density-wave initial state, resulting in strong oscillations in the total Rydberg-excitation number. | Session 161: Topological States in AMO Systems |
| 2098 | Fragmented Hilbert Spaces and Slow Dynamics in Quantum Dimer Models | Feldmeier, Johannes; Pollmann, Frank; Knap, Michael | Within this context, we investigate the connectivity of configuration spaces resulting from the hard core constraint in close-packed dimer models. | Session 161: Topological States in AMO Systems |
| 2099 | Thermalization and its Breakdown for a Large Nonlinear Spin | Kelly, Shane; Tsai, Shan-Wen; Timmermans, Eddy | By developing a semi-classical analysis based on the Eigenstate Thermalization Hypothesis, we determine the long time behavior of a large spin evolving with a nonlinear Hamiltonian. | Session 161: Topological States in AMO Systems |
| 2100 | CPT invariant topological phase in non-Hermitian spin-1/2 quantum systems | Das, Tanmoy; Ghatak, Ananya | Over the last two to three years, we have made several contributions to time-dependent theory for parity (P), time-reversal (T) invariant non-Hermitian Hamiltonians; delineating its conservation laws, CPT gauge invariance, and new term in the Berry phase. | Session 161: Topological States in AMO Systems |
| 2101 | Topological insulator-superconductor phase transition in a non-Hermitian spin chain | Li, Yunmei; Luo, Xiwang; Hou, Junpeng; Zhang, Chuanwei | Here we consider a 1D XY spin model with non-Hermitian out-of-plane magnetic field, which is periodically modulated. | Session 161: Topological States in AMO Systems |
| 2102 | Non-adiabatic topological energy pumps with three incommensurate frequencies | Ge, Rongchun; Nathan, Frederik; Morimoto, Takahiro; Gazit, Snir; Rudner, Mark; Kolodrubetz, Michael | In this talk, we generalize such multichromatic Floquet techniques to study the topological properties of one-dimensional systems driven by two non-adiabatic drives and two-level systems driven by three incommensurate drives. | Session 161: Topological States in AMO Systems |
| 2103 | Quadrupole Topological Photonic Crystals | He, Li; Addison, Zachariah; Mele, Eugene; Zhen, Bo | Extensions of these ideas from current tight binding models to continuum theories for realistic materials require the identification of quantized invariants describing the bulk quadrupole order. | Session 161: Topological States in AMO Systems |
| 2104 | Non-Hermitian topological photonics and light steering | Feng, Liang; Zhao, Han; Qiao, Xingdu; Wu, Tianwei; Midya, Bikashkali; Longhi, Stefano | By strategically interfacing non-Hermitian and topological physics, we demonstrate arbitrary, robust light steering in reconfigurable non-Hermitian junctions, in which chiral topological states can propagate at an interface of the gain and loss domains. | Session 161: Topological States in AMO Systems |
| 2105 | Floquet engineering with resonant drive and Application to symmetry-protected topological phases | Mizuta, Kaoru; Takasan, Kazuaki; Kawakami, Norio | Therefore, we extend the conventional high-frequency expansion theory to the cases in the presence of resonant drives (= drives whose local energy scale is comparable to the frequency) and propose a new scheme of Floquet engineering done by high-frequency and resonant drives [1]. | Session 161: Topological States in AMO Systems |
| 2106 | Topological amplification in photonic lattices and the classification of topological non-Hermitian phases | Porras, Diego; Fernández-Lorenzo, Samuel | In my talk I will present a definition of topological invariants for driven dissipative lattices that relies on the singular value decomposition of non-Hermitian coupling matrices, H, or, equivalently, on the eigenstates of an effective Hamiltonian, H eff = σ + H + H † σ -. | Session 161: Topological States in AMO Systems |
| 2107 | Topological Invariants for Quantum Quench Dynamics | Hu, Haiping; Zhao, Erhai | We introduce the concept of loop unitary $$U_l$$ and its homotopy invariant $$W_3$$ to fully characterize the quench dynamics of arbitrary two-band insulators in two dimensions, going beyond existing scheme based on Hopf invariant which is only valid for trivial initial states. | Session 161: Topological States in AMO Systems |
| 2108 | Quantum many-body scars from virtual entangled pairs | Chattopadhyay, Sambuddha; Pichler, Hannes; Lukin, Mikhail; Ho, Wen Wei | We study weak ergodicity breaking in a one-dimensional, non-integrable spin-1 XY model. | Session 161: Topological States in AMO Systems |
| 2109 | Haldane Phase in Spin-1 Bose-Hubbard Model with Flat Band | Yang, Hong; Nakano, Hayate; Katsura, Hosho | Here we study the spin-1 Bose-Hubbard model on a sawtooth lattice with flat band. | Session 161: Topological States in AMO Systems |
| 2110 | Detecting fractional Chern insulators in optical lattices through quantized displacement | Na, Ilyoun; Motruk, Johannes | We consider a ν = 1/2 FCI state realized in the lowest band of a Harper-Hofstadter model of hardcore bosons in a harmonic trapping potential. | Session 161: Topological States in AMO Systems |
| 2111 | Robustness of quantum scarred states to the presence of disorder and external drives | Mondragon-Shem, Ian; Vavilov, Maxim; Martin, Ivar | We focus on models that exhibit approximate SU(2) symmetries, such as the PXP model, and explore conditions under which the dynamics of the system remains non-ergodic. | Session 161: Topological States in AMO Systems |
| 2112 | Topological effects in interacting Su-Schrieffer-Heeger chains | Drueeke, Helena; Bauer, Dieter | The Su-Schrieffer-Heeger (SSH) model [1] describes a linear chain with two distinct topological phases. | Session 161: Topological States in AMO Systems |
| 2113 | Topological photonic resonator for chiral quantum optics | Barik, Sabyasachi; Karasahin, Aziz; Mittal, Sunil; Waks, Edo; Hafezi, Mohammad | Here we demonstrate chiral light-matter interactions in a topological resonator. | Session 161: Topological States in AMO Systems |
| 2114 | Effective field theories at the edges of topological insulators | Valiente, Manuel; Chen, Xin | We build two different effective field theories for the interacting edge modes in the system near the Fermi energy that eliminate the bulk in two different ways: 1) by keeping the inhomogeneity explicitly and 2) by accounting for the width of the resonance in the dispersion relations. | Session 161: Topological States in AMO Systems |
| 2115 | Dynamical Quantum Phase Transitions in U(1) Quantum Link Models in (1+1)d and (2+1)d | Huang, Yi-Ping; Banerjee, Debasish; Heyl, Markus | We aim to characterize the nonequilibrium evolution in lattice gauge theories through the lens of dynamical quantum phase transitions, which provide general principles for real-time dynamics in quantum many-body systems. | Session 161: Topological States in AMO Systems |
| 2116 | Exploring van der Waals Heterostructures behavior: Stability vs. Twisting | Silva, Andrea; Claerbout, Victor; Polcar, Tomas; Kramer, Denis; Nicolini, Paolo | In this study we focus on an often overlooked question: are twisted geometries thermodynamically stable and what defines the energy landscape induced by the rotation? | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2117 | Structural and electronic properties of twisted bilayer transition metal dichalcogenides from linear-scaling DFT | Vitale, Valerio; Lischner, Johannes; Mostofi, Arash | To overcome this obstacle, we employ the linear-scaling DFT code ONETEP [3] and present results for relaxed geometries and band structures for both homo- and heterobilayers of transition metal dichalcogenides as function of twist angle. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2118 | Moire quasicrystals in graphene encapsulated by hexagonal boron nitride | Leconte, Nicolas; Jung, Jeil | We present calculations on the double moire interference effects in the density of states and magnetic oscillations in nearly aligned BN/G/BN systems giving rise to moire quasicrystals and their evolution as a function of moire superlattice twist angles. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2119 | Modeling mechanical relaxation and electronic states of incommensurate trilayer van der Waals heterostructures | Zhu, Ziyan; Carr, Stephen; Cazeaux, Paul; Luskin, Mitchell; Kaxiras, Efthimios | Here, we present a multiscale model to obtain the mechanical relaxation pattern and electronic structure of twisted trilayer van der Waals heterostructures with two independent twist angles. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2120 | First-principles calculation of gate-tunable magnetism in twisted bilayer graphene under pressure | 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 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2121 | Origin and Evolution of Ultraflatbands in Twisted Bilayer Transition Metal Dichalcogenides: Realization of Triangular Quantum Dots | Naik, Mit; Kundu, Sudipta; Maity, Indrajit; Jain, Manish | Using a multiscale computational approach, we probe the origin and evolution of ultraflatbands in moiré superlattices of twisted bilayer MoS 2 (TBLM), a prototypical transition metal dichalcogenide. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2122 | Correlated states in transition metal dichalcogenide heterobilayer moiré superlattices | Hu, Naichao; Kumar, Ajesh; MacDonald, Allan | Using a fully self-consistent mean-field-theory, we investigate the competing correlated phases at various fractional filling factors and twist angle, and identify metal-Mott insulator phase transition at 1/2 band filling and Wigner crystal phases at 1/6 band filling. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2123 | Spontaneous symmetry breaking and topology in twisted bilayer graphene: the nature of the correlated insulating states and the quantum anomalous Hall effect | Liu, Jianpeng; Dai, Xi | We propose that such valley polairzed QAH states would be strongly suppressed by weak in-plane magnetic fields. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2124 | Quasiperiodicity induced eigenstate criticality and flat \mathbb{Z}_2 bands in a topological insulator | Fu, Yixing; Pixley, Jed; Wilson, Justin | We demonstrate that perturbing topological insulators with a quasiperiodic potential creates flat topological bands in a controllable fashion as well as induces non-trivial quantum phase transitions that are beyond the Landau-Ginzburg paradigm. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2125 | Modelling realistic Hamiltonians for moire lattices | Davydov, Arkadiy; Soluyanov, Alexey | Modelling realistic Hamiltonians for moire lattices | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2126 | Electronic properties of twisted transition metal dichalcogenide bilayers | Phillips, Madeleine; Hellberg, C Stephen | We present the results of density functional theory (DFT) calculations that model the electronic properties of MoSe 2/WSe 2 bilayers with a small (~1 degree) twist away from commensurate 180-degree stacking. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2127 | Structure of twisted transition metal dichalcogenide bilayers | Hellberg, C Stephen; Phillips, Madeleine | We present density functional (DFT) calculations of the reconstruction in transition metal dichalcogenide (TMD) hetero-bilayers twisted a small angle from from commensurate 180-degree stacking [1]. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2128 | Surface States and Arcless Angles in Twisted Weyl Semimetals | Fertig, Herbert; Murthy, Ganpathy; Shimshoni, Efrat | We demonstrate that Fermi arcs may undergo profound restructurings when surfaces of different systems with a well-defined twist angle are tunnel-coupled. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2129 | Open Momentum Space Method for Hofstadter Butterfly: Application in Moire Models | Lian, Biao; Xie, Fang; Bernevig, Andrei | We develop a generic open momentum space method for calculating the Hofstadter butterfly of both continuum models (for Moire superlattices, etc) and tight-binding models, where the quasimomentum is directly substituted by the Landau level (LL) operators. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2130 | Geometric and conventional contribution to superfluid weight in twisted bilayer graphene | Hu, Xiang; Hyart, Timo; Pikulin, Dmitry; Rossi, Enrico | We calculate the superfluid weight for twisted bilayer graphene (TBLG) taking into account both the conventional contribution and the contribution arising from the quantum geometry of the bands. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2131 | Inherited and flatband-induced ordering in twisted graphene bilayers | Klebl, Lennart; Honerkamp, Carsten | We investigate how this magnetic ordering scenario is affected by the slight twisting. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2132 | Moiré-pattern fluctuations and electron-phason coupling in twisted bilayer graphene | Ochoa, Hector | I will discuss the connection between these soft collective modes and the widespread presence of twist angle disorder in the samples. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2133 | Spin-valley density wave in moiré materials | Schrade, Constantin; Fu, Liang | We introduce and study a minimum two-orbital Hubbard model on a triangular lattice, which captures the key features of both the trilayer ABC-stacked graphene-boron nitride heterostructure and twisted transition metal dichalcogenides in a broad parameter range. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2134 | Phonon scattering induced carrier resistivity in twisted double bilayer graphene | Li, Xiao; Wu, Fengcheng | In this work we carry out a theoretical study of the phonon-induced resistivity in twisted double bilayer graphene (TDBG), in which two Bernal-stacked bilayer graphene devices are rotated relative to each other by a small angle $\theta$. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2135 | Functional renormalization group analysis of many-body states in a large moiré unit cell systems | Klebl, Lennart; Kennes, Dante; Honerkamp, Carsten | We we show how the functional renormalization group known from simpler two-dimensional systems can be employed for the large-unit cell moiré superlattices, providing a description on the atomic scale and absorbing available ab-initio information on the model parameters. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2136 | Three-Dimensional Topological Twistronics | Wu, Fengcheng; Zhang, Ruixing | We introduce a theoretical framework for the new concept of three-dimensional (3D) twistronics by developing a generalized Bloch band theory for 3D layered systems with a constant twist angle θ between successive layers. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2137 | Ferromagnetic Mott state in twisted graphene bilayers at the magic angle | Seo, Kagnjun; Kotov, Valeri; Uchoa, Bruno | After calculating the maximally localized superlattice Wannier wave functions, we derive the effective spin model that describes the Mott state at quarter filling, which has an emergent SU(4) symmetry that is reminiscent of spin and valley quantum numbers. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2138 | Theory of generalized Wigner crystals in moire superlattices. | Padhi, Bikash; Ramasubramanian, Chitra; Phillips, Philip | In this talk we present some preliminary results based on a model we construct to address this problem. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2139 | Floquet flat-band engineering of twisted bilayer graphene | Katz, Or; Refael, Gil; Lindner, Netanel | Here we demonstrate that coherent optical irradiation could lead to emergence of flat isolated Floquet-Bloch bands at a wide range of small twist angles. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2140 | Mirror symmetry breaking and the stacking-shift effect in twisted trilayer graphene | Lei, Chao; Linhart, Lukas; Qin, Wei; MacDonald, Allan | We have applied the model to study electronic structure and transport properties as a function of band filling. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2141 | Derivation of Wannier orbitals and minimal-basis tight-binding Hamiltonians for twisted bilayer graphene: First-principles approach | Carr, Stephen; Fang, Shiang; Po, Hoi Chun; Vishwanath, Ashvin; Kaxiras, Efthimios | We construct eight-band and five-band models for the low-energy states for twist angles between 1.3° and 0.6°. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2142 | Collective Modes in Magic-Angle Twisted Bilayer Graphene | Kumar, Ajesh; Xie, Ming; MacDonald, Allan | By fitting to the calculated collective excitation spectra, we derive generalized spin models that fully capture the low-energy physics. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2143 | Periodic Strain-Induced Moire Patterns in Graphene. | Mahmud, Md Tareq; Sandler, Nancy | Starting from the simplest case of two overlapping deformations, we obtain the LDOS profile for a one-dimensional array, and show the emergence of a different periodicity, a feature associated with moire patterns. | Session 162: Twisted 2D Heterostructures: Computational and Theoretical Studies |
| 2144 | Bulk insulation and surface electrons’ properties of Pb(Bi,Sb)2Te4 Topological Insulator | Hattori, Yuya; Tokumoto, Yuki; Edagawa, Keiichi | By changing Bi, Sb ratio, we systematically studied the transport properties in order to enhance bulk resistivity. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2145 | Robustness of Helical Edge States Under Proximate Band Reconstruction | John, Niels; Rosenow, Bernd; Del Maestro, Adrian | We analyze the edge structure of two-dimensional topological insulators described by the Bernevig-Hughes-Zhang model with the help of a self-consistent electrostatic modeling of sample edges, combined with a time-dependent perturbation theory approach. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2146 | Transport properties of a topological system in non-integer dimensions | Fischer, Sonja; Fritz, Lars; Fremling, Mikael | Transport properties of a topological system in non-integer dimensions | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2147 | Probing spin-orbit interactions in monolayer WTe2 edge states | Runburg, Elliott; Zhao, Wenjin; Fei, Zaiyao; Mutch, Joshua; Malinowski, Paul; Sun, Bosong; Huang, Xiong; Cui, Yongtao; Xu, Xiaodong; Chu, Jiun-Haw; Cobden, David | To address this, we investigate the angular dependence of the magnetic field on the conduction of edges and cracks in monolayer WTe 2 flakes as a function of gate voltage, temperature, and edge orientation relative to the crystal axes as determined by scanning microwave impedance microscopy. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2148 | Coulomb Drag in 2D bilayer Topological Insulator systems | Yang, Kai-Jie; Liu, Chaoxing | Based on the linear response theory and diagrammatic methods, we carefully investigated the Coulomb drag effect in this 2D topological insulator systems based on the simplified models. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2149 | Electrical study of Bi2Te3, Sb2Te3 and (Bi1-xSbx)2Te3 films | Suresh Babu, Soorya; Bai, Yang; Eckstein, James | We have studied the growth of thin films grown by molecular beam epitaxy containing Bi 2Te 3, Sb 2Te 3 and alloys of (Bi 1-xSb x) 2Te 3. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2150 | Wide band gap topological insulator via band engineering | Levy, Ido; Youmans, Cody; Garcia, Thor; Deng, Haiming; Alsheimer, Steven; Testelin, Christophe; Krusin-Elbaum, Lia; Ghaemi, Pouyan; Tamargo, Maria | Here we present tight binding calculations, which predict a SL gap of up to 400% larger than the bandgaps of the constituent layers when the SL is grown with the appropriate thicknesses. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2151 | Pb-doped p-type Bi2Se3 thin films via interfacial engineering | Moon, Jisoo; Huang, Zengle; Wu, Weida; Oh, Seongshik | Here, by utilizing an interface engineering scheme, we have achieved the first Pb-doped p-type Bi 2Se 3 thin films. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2152 | Thermoelectric transport in helical edge states via chiral hydrodynamics | Zhang, Xinghai; Foster, Matthew | We study thermoelectric transport in a 1D helical liquid, as appears at the edge of a 2D topological insulator. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2153 | Proximity-induced quantum anomalous Hall effect in (Zn,Cr)Te/(Bi,Sb)2Te3/(Zn,Cr)Te heterostructure | Yoshimi, Ryutaro; Watanabe, Ryota; Kawamura, Minoru; Mogi, Masataka; Tsukazaki, Atsushi; Yu, Xiuzhen; Nakajima, Kiyomi; Takahashi, Kei; Kawasaki, Masashi; Tokura, Yoshinori | Here, we report on the observation of the QAHE in a proximity coupled system of non-magnetic TI and ferromagnetic insulator (FMI). | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2154 | Franckeite: A new naturally occurring topological insulator | Palacios, Juan; Paz, Wendel; Menezes, Marcos; Capaz, Rodrigo | Here we present DFT results on the opposite limit of concentration. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2155 | Possible topological protection and superconducting proximity effects in surface states of HfNiSn single crystals | Steinke, Lucia; Baker, William; Babb, Michael; Klemm, Mason; Harris, Harlan; Aronson, Meigan | Possible topological protection and superconducting proximity effects in surface states of HfNiSn single crystals | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2156 | Influence of electronic band topology on sound waves | Sengupta, Sanghita; Yacine Lhachemi, Mohamed Nabil; Garate, Ion | We present a semiclassical theory of acoustic waves in topologically nontrivial materials. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2157 | Thermoelectric Transport Coefficients of a Dirac Electron Gas in High Magnetic Fields | Könye, Viktor; Ogata, Masao | We study the massive Dirac Hamiltonian in high magnetic fields focusing on the effects of the mass term and we show the main differences that arise compared to massless Dirac fermions. | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2158 | Epitaxial growth and electronic properties of few-layer stanene on InSb (111) | Zhang, Jianfeng; Zheng, Xiaohu; Du, Rui-Rui | Epitaxial growth and electronic properties of few-layer stanene on InSb (111) | Session 163: Transport and Thermodynamic Properties of Topological Systems: |
| 2159 | Large Tunability of Band Edges and Band Gaps in Colloidal Nanoplatelets | Zhou, Qunfei; Cho, Yeongsu; Yang, Shenyuan; Weiss, Emily; Berkelbach, Timothy; Darancet, Pierre | We developed simple quantitative theory describing the independent tunability of band edge and band gap shifts in terms of ligand-induced surface dipole, and strain, respectively, which can be used for controlled modification of photochemistry and optoelectronic properties for NPLs. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2160 | Suppression of Impurity Phase in Cesium Halide Perovskites by using Pressure | Nguyen, LanAnh; Nguyen, Duong; Kang, Youngjong; Wang, Lin; Kim, Jaeyong | We report the suppression of the CsPbBr 3 phase by applying pressure in an order of giga-pascal scale. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2161 | A Machine Learning Approach to the Analysis of X-ray Diffraction Patterns From Multilayered Thin Film Diffusion Couples | Kananenka, Alexei; DeCamp, Matthew; Unruh, Karl | A machine learning approach based on Neural Network and Gaussian Process Regression algorithms has been developed to extract structural information from the x-ray diffraction (XRD) patterns of multilayered Au/Pt diffusion couples. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2162 | First principles study of hBN-AlN short-period superlattice heterostructures | Spataru, Catalin; Crawford, Mary; Allerman, Andrew A. | We present a theoretical study [1] of the structural, electronic, and optical properties of hBN-AlN superlattice (SL) heterostructures using a first-principles approach based on standard and hybrid density functional theory. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2163 | Hydrogen passivation effect on the sealing problem of edge growth in h-BN | Zhao, Wenjing; Zhu, Junyi | In this talk, we’ll illustrate the intrinsic difficulty to fill out the last few atoms to the edge of hexagonal BN and define such a difficulty as a sealing problem. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2164 | Epitaxial growth of atomically-sharp GeSn/Ge/GeSn tensile strained (≥1.5 %) quantum well on Si | Assali, Simone; Attiaoui, Anis; Del Vecchio, Patrick; Mukherjee, Samik; Kumar, Aashish; Moutanabbir, Oussama | Here, we discuss the epitaxial growth of a tensile-strained GeSn/Ge/GeSn heterostructure(s-Ge) with sharp interfaces and in-plane biaxial strain above 1.5% grown on lattice-mismatched Ge 0.86Sn 0.14. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2165 | Field emission characteristics of solid-state, GaN-based vacuum nanoelectronic devices | SAPKOTA, KESHAB; Talin, Albert; Leonard, Francois; Kazanowska, Barbara; Jones, Kevin; Gunning, Brendon; Wang, George | Here we propose GaN as a superior materials platform compared to silicon or metals for solid-state, nanogap field emission devices based on its lower electron affinity, higher chemical stability, and high breakdown voltage. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2166 | Classification of Critical Points in Energy Bands Based on Topology, Scaling and Symmetry | Yuan, Noah; Fu, Liang | In this work, we describe and classify high-order critical points based on topology, scaling and symmetry. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2167 | Super-geometric electron focusing on the hexagonal Fermi surface of PdCoO2 | Bachmann, Maja; Sharpe, Aaron; Barnard, Arthur; Putzke, Carsten; Koenig, Markus; Khim, Seunghyun; Goldhaber-Gordon, David; Mackenzie, Andrew; Moll, Philip | We fabricate ballistic structures for transverse electron focusing from as-grown single crystals using focused ion beam machining, and demonstrate magnetic focusing up to 35 µm. Compared to typically studied materials with circular Fermi surfaces, the transverse focusing amplitude is strongly enhanced due to the large parallel sections of the hexagonal Fermi surface. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2168 | Atomic-scale physical manipulation of metal oxides by in-situ TEM method | Bai, Xuedong | Here, we will report on the construction and applications of the in-situ TEM setup including mechanical, electrical and optical holders, which were built by STM technique. | Session 164: Superlattices and Nanostructures: Growth, Structure, and Electronic Properties |
| 2169 | Spin-orbit-coupled ferroelectric superconductivity and multiorbital effects in SrTiO3 | Kanasugi, Shota; Yanase, Youichi | Motivated by recent discoveries of the coexistent phenomena of superconductivity and ferroelectricity in doped SrTiO 3 [1,2], we investigated the feasibility of ferroelectric (FE) superconductivity in which superconductivity coexists with a FE-like order. | Session 165: Superconductivity: Theories and Models |
| 2170 | Capillary waves on ferroelastic domain walls as a pairing mechanism in strontium titanate | Pekker, David; Hellberg, C Stephen; Tylan-Tyler, Anthony; Levy, Jeremy | Capillary waves on ferroelastic domain walls as a pairing mechanism in strontium titanate | Session 165: Superconductivity: Theories and Models |
| 2171 | Unconventional High Temperature Superconductivity in Cubic Zinc-blende Transition Metal Compounds | Zhang, Qiang; Jiang, Kun; Gu, Yuhao; Hu, Jiangping | Recently, we have identified a key character, called high temperature superconductivity "gene", which separates the cuprates and iron-based superconductors from other transitional metal compounds, and proposed some candidates for unconventional superconductivity. | Session 165: Superconductivity: Theories and Models |
| 2172 | Superconducting pairing in non-pseudospin electron bands | Samokhin, Kirill | Generalizing the commony used Ueda-Rice prescription, we define the Bloch bases in twofold degenerate bands with spin-orbit coupling in a way which satisfies all symmetry and continuity requirements. | Session 165: Superconductivity: Theories and Models |
| 2173 | A microscopic picture of pseudogap phase related to charge fluxes | Li, Xin | In this talk we further discuss an important emergent behavior of such charge fluxes in cuprate superconductors [2]. | Session 165: Superconductivity: Theories and Models |
| 2174 | Multiband Superconductivity: Anisotropy, Scattering and Bound States | Saunderson, Tom; Csire, Gabor; Annett, James; Ujfalussy, Balazs; Gradhand, Martin | Here we present the implementation of the Bogoliubov-de Gennes (BdG) equation into a Green’s function (KKR) first principles method [4]. | Session 165: Superconductivity: Theories and Models |
| 2175 | Using unsupervised machine learning to predict critical temperatures of superconductors | Roter, Benjamin; Dordevic, Sasa | Based on this machine learning model, we predict several new superconductors with high critical temperatures. | Session 165: Superconductivity: Theories and Models |
| 2176 | Superconducting Neural Networks for Faster Machine Learning | Day, Alexandra; Wynn, Alexander; Golden, Evan | We will present a conceptual framework for a superconducting neural network and its related benchmarks, along with simulation results for simple circuits. | Session 165: Superconductivity: Theories and Models |
| 2177 | Novel Magnetoelectric Effects in Gyrotropic Superconductors and a Case Study of Transition Metal Dichalcodenides | He, Wenyu; Law, Kam Tuen | In this work, we classify superconductors according to their magnetoelectric response. | Session 165: Superconductivity: Theories and Models |
| 2178 | Resonant study of the vortex state in LSCO cuprates up to 35 T. | Shekhter, Arkady; Bangura, Ali; Rydh, Andreas; Modic, Kimberly; Boebinger, Gregory; Ramshaw, Brad; McDonald, Ross | We used a newly developed resonant probe of elastic moduli to explore the phase diagram of the vortex state in LSCO cuprates near critical doping x=0.20, up to 35 T. | Session 165: Superconductivity: Theories and Models |
| 2179 | Four-fold anisotropy of the parallel upper critical magnetic field in a layered d-wave superconductor at T = 0 | Lebed, Andrei | As to the case T=0, some approximated methods have been used, which are good only for closed electron orbits and inappropriate for the open orbits which exist in a parallel magnetic field in Q2D superconductors. | Session 165: Superconductivity: Theories and Models |
| 2180 | Three Corollaries to the Three Laws of Electronic Thermal Conductivity of High Temperature Superconductors (HTSCs) via Dipolon Theory | Sharma, Ram | Here we present three corollaries to the three laws of ETC. | Session 165: Superconductivity: Theories and Models |
| 2181 | Detecting superconductivity out-of-equilibrium | Paeckel, Sebastian; Fauseweh, Benedikt; Osterkorn, Alexander; Koehler, Thomas; Manske, Dirk; Manmana, Salvatore | Our findings imply that, in contrast to current experimental studies, it does not suffice to study the time evolution of the optical conductivity to identify superconductivity. | Session 165: Superconductivity: Theories and Models |
| 2182 | Computational Simulations of the Cooling of Type II Superconductors Using a Material Specific Formulation of the Ginzburg Landau Equations | Harbick, Aiden; Pack, Alden; Jones, Braedon; Transtrum, Mark | We adapt the theory to allow spatial variation of material-specific parameters along with realistic temperature dependencies. | Session 165: Superconductivity: Theories and Models |
| 2183 | Hall anomalies and vortex charge in layered superconductors | Arovas, Daniel; Auerbach, Assa | Hall anomalies and vortex charge in layered superconductors | Session 165: Superconductivity: Theories and Models |
| 2184 | Chirality polarization and spectral bulk-boundary correspondence | Daido, Akito; Yanase, Youichi | In this work, we prove SBBC based on the analogy with electric polarization: SBBC can be regarded as polarization of chiralities. | Session 165: Superconductivity: Theories and Models |
| 2185 | Exciton-induced Charge Fluctuations in One-dimensional Quasi-periodic “Metallic” Chains: A Possible Embodiment of Room Temperature Superconductivity | Grant, Paul | In this talk, we explore the hypothetical electronic properties of a nominally “metallic” quasi-periodic chain using both an analytical approach and computationally with density functional theory, searching for configurations which yield “gap-lets” sufficiently small to permit the formation of BCS pairs as the new energetically favored ground state. | Session 165: Superconductivity: Theories and Models |
| 2186 | A New Superfast Method for Combinatorial Search of High-Temperature Hydride Superconductors under Extreme Pressures | Chen, Tianran; Yildirim, Taner | In this work, we have developed a super-efficient and fast method for searching high-Tc hydride superconductors. | Session 165: Superconductivity: Theories and Models |
| 2187 | Emergent unconventional superconductivity in doped valence bond solid insulators | Li, Zixiang; Lee, Dunghai | In this talk, I will discuss the unconventional superconductivity and non-Fermi liquid behavior in the doped valence bond solid insulators. | Session 165: Superconductivity: Theories and Models |
| 2188 | Possible counterintuitive enhancement of superconductivity in ladder-type cuprates by longitudinal compression | Kuroki, Kazuhiko; Sakamoto, Hikaru | We apply the fluctuation exchange approximation to the model and study how superconductivity is affected under uniaxial deformation. | Session 165: Superconductivity: Theories and Models |
| 2189 | Ground state phase diagram of the doped Hubbard model on a two-leg ladder | Peng, Cheng; Jiang, Yi-Fan; Gannot, Yuval; Jian, Chao-Ming; Kivelson, Steven; Jiang, Hong-Chen | We have revisited the problem of the two-leg Hubbard ladder using DMRG methods but keeping larger number of states than in previous studies so as to obtain definitive results on the long-distance behavior of relevant ground-state correlation functions. | Session 165: Superconductivity: Theories and Models |
| 2190 | Finding the breakdown of the linear Holstein model using determinant quantum Monte Carlo | Johnston, Steven; Dee, Philip; Coulter, Jennifer | We find signs of disagreement between the linear and nonlinear models for relatively small values of the dimensionless e-ph coupling λ, and importantly, these discrepancies often occur in the same parameter regions where Migdal’s theorem breaks down. | Session 165: Superconductivity: Theories and Models |
| 2191 | The superconducting Tc and the metal-insulator transition in the Hubbard-Holstein model | Park, Tae-Ho; Choi, Han-Yong | We present that the maximum superconducting T c is on the phase boundary between metallic and insulating states of the normal state in the Hubbard-Holstein model. | Session 165: Superconductivity: Theories and Models |
| 2192 | Pairing correlations in the cuprates: a numerical study of the three-band Hubbard model | Mai, Peizhi; Johnston, Steven; Maier, Thomas | We study the three-band Hubbard model for the copper oxide plane of the high-temperature superconducting cuprates using exact diagonalization, determinant quantum Monte Carlo, and dynamical cluster approximation (DCA) with an emphasis on pairing correlations. | Session 165: Superconductivity: Theories and Models |
| 2193 | Explaining the Anomalous Isotope Shift in Cuprate High Temperature Superconductivity | Newns, Dennis; Martyna, Glenn; Ganguly, Soumya | Solving the Eliashberg equation we evaluate the IS, and will present the results. | Session 165: Superconductivity: Theories and Models |
| 2194 | Tendency of nematicity in the extremely underdoped t-J model | Liu, YiHsuan; Tu, Wei-Lin; Lee, Ting-Kuo | In the previous VMC study of the Heisenberg model, various groups have confirmed that the uniform RVB+AFM trial wave function has the lowest energy[4], which is very close to the best numerical estimation of the exact ground state energy. | Session 165: Superconductivity: Theories and Models |
| 2195 | Nematic superconductivity in twisted bilayer graphene | Chichinadze, Dmitry; Classen, Laura; Chubukov, Andrey | In particular, we present a mechanism for nematic superconductivity, which originates in the interplay of two superconducting orders with similar critical temperatures. | Session 165: Superconductivity: Theories and Models |
| 2196 | Magnetic and superconducting correlation in monolayer and twisted bilayer graphene | Ma, Tianxing | Using exact quantum Monte Carlo method, we identify the phase diagram of the half filled, the lightly doped and heavily doped graphene. | Session 165: Superconductivity: Theories and Models |
| 2197 | 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 165: Superconductivity: Theories and Models |
| 2198 | Supoerconductiviy in the doped chiral spin liquid on triangular lattice | Jiang, Yi-Fan; Jiang, Hong-Chen | Theory proposes that doping chiral spin liquid (CSL) can give rise to topological superconductivity. | Session 165: Superconductivity: Theories and Models |
| 2199 | On the equivalence of Peierls and Holstein models in perovskite structures | Yam, Yau Chuen; Berciu, Mona; Sawatzky, George | We consider the effects of electron-phonon coupling in a perovskite ABO_3, modelled in terms of uncorrelated s-orbitals on the B sites that hybridize with ligand p-orbitals at the O sites. | Session 165: Superconductivity: Theories and Models |
| 2200 | Mottness induced phase fluctuation in overdoped superconducting cuprates | Ku, Wei; Lang, Zijian; Yang, Fan | Mottness induced phase fluctuation in overdoped superconducting cuprates | Session 165: Superconductivity: Theories and Models |
| 2201 | Ground state properties of the Emery model in the underdoped regime | Chiciak, Adam; Vitali, Ettore; Zhang, Shiwei | We perform extensive Auxiliary-Field Quantum Monte Carlo (AFQMC) calculations for the three-band Hubbard (Emery) model in the underdoped regime, in order to study the ground-state properties of Copper-Oxygen planes in the cuprates. | Session 165: Superconductivity: Theories and Models |
| 2202 | A dynamical cluster approximation study of Tc in a composite superconducting-metallic two-component model. | Dee, Philip; Maier, Thomas | We studied this system nonperturbatively using the dynamical cluster approximation for a 2D attractive Hubbard model coupled to a noninteracting metallic layer via interlayer hopping. | Session 165: Superconductivity: Theories and Models |
| 2203 | Effect of non-phonon modes on the isotope effect and Hall resistivity in cuprates | Wang, Da | In this work, we investigate their effects on the T c isotope coefficient and Hall resistivity. | Session 165: Superconductivity: Theories and Models |
| 2204 | Magnetic impurities as hosts of odd-frequency superconductivity | Kuzmanovski, Dushko; Balatsky, Alexander | We present calculations of physically measurable observables, such as spin-polarized local density of states, local spin susceptibility that carry signatures of odd- ω in some of their features. | Session 165: Superconductivity: Theories and Models |
| 2205 | Harmonic Fingerprint of Unconventional Superconductivity | Klett, Michael; Wu, Xianxin; Schwemmer, Tilman; Fink, Mario; Hanke, Werner; Thomale, Ronny | We present an analysis – based on random phase approximation calculations – of twisted bilayer graphene (TBG) involving d+id, s±, and f-wave order. | Session 165: Superconductivity: Theories and Models |
| 2206 | Theory of superconductivity and anomalous Hall effect in Multi-pole system CeCu2Si2 | Tazai, Rina; Kontani, Hiroshi | To overcome this difficulty, we study the microscopic SC paring mechanism in the presence of strong spin-orbit interaction (SOI) and higher-order many body effects ignored in ME theory. | Session 165: Superconductivity: Theories and Models |
| 2207 | Spin-orbit coupling effects on Hund’s coupling induced orbital-singlet spin-triplet superconductivity | Lee, Tsung-Han; Lanata, Nicola; Kotliar, Gabriel | We study the effect of spin-orbit coupling (SOC) on the Hund’s coupling induced orbital-singlet spin-triplet superconductivity in the three-orbital Hubbard model with rotationally-invariant slave-boson (RISB) mean-field theory. | Session 165: Superconductivity: Theories and Models |
| 2208 | Influence of the Rutgers Relation on underdoped cuprate properties | Salas Casales, Patricia; Solís, M. A. | We compare our current results for the penetration length and the normalized superfluid density as functions of temperature as well as of doping x, with experiments and our previously reported results, obtaining a substantial improvement. | Session 165: Superconductivity: Theories and Models |
| 2209 | DMRG and weak coupling studies of the two-leg Hubbard ladder | Gannot, Yuval; Jiang, Yi-Fan; Kivelson, Steven | The Hubbard model is of paradigmatic significance in the study of highly correlated electron systems. | Session 165: Superconductivity: Theories and Models |
| 2210 | Beyond s- and d-waves: d + d intra- and inter-band pairing in multi-band superconductors | Si, Qimiao; Nica, Emilian | We discuss an alternative in the form of a gapped d + d intra- and inter-band pairing which provides a natural interpolation between standard s and d-waves. | Session 165: Superconductivity: Theories and Models |
| 2211 | Unraveling the Mott-Peierls intrigue in Vanadium dioxide | Amaricci, Adriano; Fabrizio, Michele; Grandi, Francesco | We design a minimal model for VO2 that includes all the important physical ingredients: the electronic correlations, the multi-orbital character, and the two components antiferrodistortive mode that condenses in the monoclinic insulator. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2212 | Correlation induced emergent charge order in metallic vanadium dioxide thin films | Singh, Christopher; Piper, Louis; Paik, Hanjong; Schlom, Darrell; Lee, Wei-Cheng | To that end, we develop a cross-phase, symmetry-consistent approach to treat structural distortions and electronic correlations in epitaxial VO 2 films from first principles. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2213 | Probing the Mott transition in V2O3 with Pair Distribution Function Analysis | Fletcher, Ethan; Frandsen, Benjamin; Higashi, Kentaro; Kageyama, Hiroshi | Here, we present comprehensive atomic and magnetic pair distribution function (PDF) analyses of V 2O 3 using both x-ray and neutron total scattering measurements, shedding new light on the mechanism of the transition from the point of view of short-range structural and magnetic correlations on both sides of the transition. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2214 | Nanosecond fluctuators in V2O3 film within the metal-insulator-transition | Chen, Liyang; Zhou, Panpan; Kalcheim, Yoav; Schuller, Ivan; Natelson, Douglas | Nanosecond fluctuators in V2O3 film within the metal-insulator-transition | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2215 | Low-temperature metallic phase in V2O3 films due to structural confinement | Kalcheim, Yoav; Adda, Coline; Ghazikhanian, Nareg; Navarro, Henry; Salev, Pavel; del Valle, Javier; Schuller, Ivan | We show that high purity V 2O 3 films grown on certain substrates exhibit a suppressed metal insulator transition (MIT) and in some cases even a reentrant metallic phase at low temperature. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2216 | Controlled growth of VO2 Nanowires by direct conversion of V2O5 solution film | Blair, Gavin; Joshy, Abin; Steely, Andrew; Wei, Jiang | Through the use of a chemical vapor deposition using solutions of V 2O 5, we realized a consistent growth of single crystals with their size ranging from nanowires to microbeams. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2217 | Observation of the voltage-triggered insulator to metal transition in a VO2 thin film as a function of temperature. | Spitzig, Alyson; Wang, Xuguang; Arumainayagam, Michael; Yildiz, Dilek; Hoffman, Jason; Hoffman, Jennifer | Here, we extend these measurements to a wider temperature range to further understand the effects of Joule heating on the voltage-triggered insulator to metal transition in VO 2 thin films. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2218 | Selective phonon-mode excitation revealed by tracing the pathway of photo-induced structural-phase-transition in single-crystal VO2 | Li, Junjie; Wang, Wei; Wu, Lijun; Delaire, Olivier; Tao, Jing; Zhu, Yimei | In this study, we use MeV ultrafast electron diffraction to monitor the structure evolution in single-crystal VO 2 under femtosecond laser excitation. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2219 | Probing the insulator-to-metal transition in VO2 using non-contact atomic force microscopy | Arumainayagam, Michael; Spitzig, Alyson; Wang, Xuguang; Little, Larissa; Yildiz, Dilek; Hoffman, Jason; Hoffman, Jennifer | In this study, the IMT of VO 2 thin films grown using oxygen plasma molecular beam epitaxy are examined using non-contact atomic force microscopy (AFM) in ultrahigh vacuum. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2220 | Resistive switching and filament formation in VO2 vertical devices | Lee, Minhan; Cheng, Shaobo; del Valle, Javier; Zhu, Yimei; Schuller, Ivan | In this work, we investigated the mechanisms behind volatile and non-volatile resistive switching in electrically-driven VO 2 vertical devices. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2221 | Acoustoelectric effect in strongly correlated oxides | Lapa, Pavel; Lee, Minhan; Torres, Felipe; Chiu, I-Ting; Takamura, Yayoi; Schuller, Ivan | In this work, we studied the AE effect in non-magnetic (VO 2, V 2O 3) and ferromagnetic La 0.7Sr 0.3MnO 3 wires grown on top of piezoelectric LiNbO 3 substrates. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2222 | Fragile 3D Order in V(1-x)MoxO2 | Krogstad, Matthew; Davenport, Matthew; Whitt, Logan; Rosenkranz, Stephan; Osborn, Raymond; Allred, Jared | Electron doping with molybdenum enhances metallicity and reduces the structural transition temperature; between 17% and 19% Mo, we find that the long-range structural transition is suppressed entirely while the electronic transitions remain similar. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2223 | Nonequilibrium-induced quantum fluctuations in resistive phase transition | Han, Jong E | The mean-field theory [1] showed that the self-consistent Landau-Zener mechanism reproduced main experimental features, and we show that it is equivalent to the empirical resistor network theories based on electronic scenarios applicable to systems like VO 2. | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2224 | Emergent properties in films of transition metal oxides | Lahneman, D.; McArdle, P.; Jiang, H.; Qazilbash, M. M.; Slusar, T.; Kim, H.-T.; Biswas, A.; Keilmann, F. | Emergent properties in films of transition metal oxides | Session 166: Vanadium Oxides Metal Insulator Transitions |
| 2225 | Surface Potential Mapping of MoS2 Monolayers on Au Nanostripe Arrays | Kwon, Soyeong; Je, Yugyeong; Song, Jungeun; Kim, Eunah; Kim, Bora; Lee, Sang Wook; Kim, Dongwook | In this work, MoS 2 monolayers were transferred on Au nanostripe arrays. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2226 | Studies of Band Alignment in WS2/MoS2/Al2O3 Heterostructures using Kelvin Probe Force Microscopy | Kim, Bora; Tsai, Po-Cheng; Kim, Jayeong; Kim, Eunah; Kwon, Soyeong; Yoon, Seokhyun; Lin, Shih-Yen; Kim, Dongwook | In this work, we fabricated WS2/MoS2 heterostructures on single crystal Al2O3 wafers, using sulfurization of pre-deposited transition metal layers. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2227 | Mottness versus unit-cell doubling as the driver of the insulating state in 1T-TaS2 | Butler, Christopher; Yoshida, Masaro; Hanaguri, Tetsuo; Iwasa, Yoshihiro | We will describe scanning tunneling microscopy measurements [3] showing two distinct terminations of the 3D charge order – the sign of a stacking pattern with two SDs per cell – and determine the inter-layer stacking vectors. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2228 | Confinement Heteroepitaxy: A Novel Route for Realizaing Exotic 2D Materials | Vera, Alexander; Yanez, Wilson; Briggs, Natalie; Bowen, Timothy; Rajabpour, Siavash; Samarth, Nitin; ROBINSON, JOSHUA | We have demonstrated facile synthesis of air-stable, atomically thin, single crystal two-dimensional (2D) metals (gallium, indium, tin, lead, and silver) within a silicon carbide and epitaxial graphene interface through high-pressure intercalation (i.e. confinement heteroepitaxy, or CHet). | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2229 | Surface Engineering of Monolayer MoS2 for Atomic Layer Deposition of TiO2 | Kropp, Jaron; Ataca, Can; Gougousi, Theodosia | We investigate methods to improve the growth of high-quality TiO 2 films on MoS 2 via atomic layer deposition (ALD). | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2230 | Photoluminescence and Surface Potential Characterizations of MoS2 Monolayers on Periodic Au Nanostructures | Song, Jungeun; Kwon, Soyeong; Kim, Eunah; Kim, Bora; Kim, Dongwook; Lee, Seongyeon; Yee, Kiju | Photoluminescence and Surface Potential Characterizations of MoS2 Monolayers on Periodic Au Nanostructures | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2231 | Scanning tunneling microscopy study of monolayer NbSe2 | Liu, Mengke; Yu, Jia; Shih, Chih-Kang | In this work, we study MBE grown monolayer NbSe 2 using scanning tunneling microscopy and spectroscopy (STM/S). | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2232 | Thickness Dependent Electronic Structures of Pd Dichalcogenides: A First Principles Study | Feng, Liang-Ying; Villaos, Rovi Angelo B.; Huang, Zhi-Quan; Hsu, Chia-Hsiu; Chuang, Feng-Chuan | In this study, using first-principles calculations, we investigate the electronic properties of PdX 2 (X=S, Se, or Te) with respect to film thickness. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2233 | Electronic Growth Modes in Metal Dichalgogenide Interfacees | Kidd, Tim; O’Leary, Evan; Stollenwerk, Andrew | We have found that this lack of interaction can induce a variety of metals to spontaneously organize into films or nanostructures with strongly preferred heights upon the TMDC surface. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2234 | Doping WS2 armchair nanoribbons with transition metals | Chen, Yan-Hong; Lee, Chi-Hsuan; Cheng, Shun-Jen; Yang, Chih-Kai | We found that Fe-doped ribbons have two-channel conduction separately in the middle part of the ribbon and at the edges. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2235 | Induction of Phase Transition in Transition Metal Dichalcogenides on Metal Substrates | Tang, Chi Sin; Yin, Xinmao; Wu, Di; Kong, Weilong; Wang, Qixing; Yang, Ming; Breese, Mark; Zhang, Wenjing; Rusydi, Andrivo; Wee, Andrew | We present a high-yield 1H to1T′ phase transition of monolayer-MoS 2 on Cu and monolayer-WSe 2 on Au via an annealing-based process. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2236 | Tuning the Electronic Band Structure of Copper Selenide Cu2Se Thin Films Grown via Molecular Beam Epitaxy | Van Haren, Ryan; Joshi, Toyanath; Lederman, David | In this work, we will present our successful epitaxial growths of Cu 2-xSe thin films via molecular beam epitaxy (MBE). | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2237 | Fabrication of Copper Selenate Thin Films by Pulsed Laser Deposition | King, David; Tang, Jinke; Erugu, Uppalaiah; Ackerman, John | In this research, we present results of using pulsed laser deposition (PLD) to fabricate thin films of Cu 2OSeO 3, specifically accounting for the high disparity in vapor pressure between the reactants CuO and SeO 2. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2238 | Dimensionality-Mediated Semimetal-Semiconductor Transition in Ultrathin PtTe2 Films | Lin, Meng-Kai; Villaos, Rovi Angelo B.; Hlevyack, Joseph; Chen, Peng; Liu, Ro-Ya; Hsu, Chia-Hsiu; Avila, José; Mo, Sung-Kwan; Chuang, Feng-chuan; Chiang, Tai-Chang | Dimensionality-Mediated Semimetal-Semiconductor Transition in Ultrathin PtTe2 Films | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2239 | Structural response of a slit-shaped graphene nanopore to adsorption: Observation by in situ neutron diffraction | Schaeperkoetter, Joseph; Taub, Haskell; Kaiser, Helmut; Buck, Zachary; Connolly, Matthew; Wexler, Carlos | We have investigated adsorption-induced deformation in graphene oxide framework materials (GOFs) using neutron diffraction at sample pressures up to 140 bar. | Session 167: Surface Studies of Transition Metal Dichalcogenides |
| 2240 | Superconductivity without time-reversal or inversion symmetries | Agterberg, Daniel; Brydon, Philip; Fischer, Mark; Menke, Henri; Sigrist, Manfred; Timm, Carsten | Here we discuss unusual physics that arises when one or more of these key symmetries are broken. | Session 168: Topological superconductors in more than one dimension |
| 2241 | Supercurrent-induced Majorana bound states in a planar geometry | Melo, André; Rubbert, Sebastian; Akhmerov, Anton | We propose a new setup for creating Majorana bound states in a two-dimensional electron gas Josephson junction. | Session 168: Topological superconductors in more than one dimension |
| 2242 | Dissipative chiral superconductors in 3D | Hua, Meng; Yang, Lingyu; Teo, Jeffrey | In this talk, we focus on the classification, model realization and topological-index characterization of dissipative topological superconductors in 3D and the corresponding dissipative chiral Majorana fermion on the boundary surface. | Session 168: Topological superconductors in more than one dimension |
| 2243 | Topological Skyrmion Phases of Matter | Cook, Ashley | We introduce two-dimensional topological phases of matter defined by non-trivial homotopy groups into the literature, characterized either by a single Skyrmion number, known as the chiral topological Skymion insulator, or a pair of Skyrmion numbers, known as the helical topological Skyrmion insulator, which generalize and extend the concepts of the Chern insulator and quantum spin Hall insulator, respectively. | Session 168: Topological superconductors in more than one dimension |
| 2244 | Triplet-Superconductivity in Triple-Band Crossings | Sim, GiBaik; Park, Moon Jip; Lee, SungBin | In this talk, we will introduce the triplet superconductivity in the newly discovered form of the topological semimetal, where the electrons with pseudospin J=1 form triple-band crossings. | Session 168: Topological superconductors in more than one dimension |
| 2245 | Higher-order topological superconductor in ${\mathcal P}, {\mathcal T}$-odd quadrupolar Dirac metal | Roy, Bitan | We here show that two- and three-dimensional Dirac metals, realized by doping parity (${\mathcal P}$) and time-reversal (${\mathcal T}$) odd topologically trivial Dirac insulators, sustain a local or inter-unit cell pairing that assumes the form of a time-reversal odd and mixed parity (due to the absence of ${\mathcal T}$ and ${\mathcal P}$ in the NS, respectively) pairing around the Fermi surface. | Session 168: Topological superconductors in more than one dimension |
| 2246 | Refined symmetry indicators for topological superconductors in all space groups | Ono, Seishiro; Po, Hoi Chun; Watanabe, Haruki | In this work, we advance the theory of symmetry indicators for topological (crystalline) superconductors to cover all space groups. | Session 168: Topological superconductors in more than one dimension |
| 2247 | Emergent spacetime and gravitational Nieh-Yan anomaly in chiral Weyl superfluids and superconductors | Nissinen, Jaakko | We show that the momentum anomaly can be given a consistent interpretation as the chiral Nieh-Yan gravitational anomaly experienced by Weyl fermions on the emergent curved spacetime. | Session 168: Topological superconductors in more than one dimension |
| 2248 | Weyl-superconductor phases in the multilayer model of Weyl semimetals and superconductors | Nakai, Ryota; Nomura, Kentaro | We study the superconducting proximity effect in the bulk of Weyl semimetals by considering a multilayer structure consisting of alternating Weyl-semimetal and superconductor (WSM-SC) layers. | Session 168: Topological superconductors in more than one dimension |
| 2249 | Edge current and orbital angular momentum of chiral superfluids revisited | Nie, Wenxing; Huang, Wen; Yao, Hong | The analysis provides a simple intuitive understanding for the vanishing of OAM in a non-p-wave chiral superfluid (such as d+id) confined by a rigid potential. | Session 168: Topological superconductors in more than one dimension |
| 2250 | Vortices in a Monopole Superconducting Weyl Semi-metal | Lee, Shu-Ping; Sun, Canon; Li, Yi | In this work we study the zero-energy vortex bound states in a model of a monopole superconductor based on a time-reversal broken Weyl semi-metal with proximity-induced superconductivity. | Session 168: Topological superconductors in more than one dimension |
| 2251 | Majorana Kramers Pairs in Higher-Order Topological Insulators | Hsu, Chen-Hsuan; Stano, Peter; Klinovaja, Jelena; Loss, Daniel | We propose a tune-free scheme to realize Majorana bound states using higher-order topological insulators [1]. | Session 168: Topological superconductors in more than one dimension |
| 2252 | Topology-Bounded Superfluid Weight in Twisted Bilayer Graphene | Xie, Fang; Song, Zhida; Lian, Biao; Bernevig, Andrei | We derive the superfluid weight (phase stiffness) of the TBLG superconducting flat bands with a uniform pairing, and show that it can be expressed as an integral of the Fubini-Study metric of the flat bands. | Session 168: Topological superconductors in more than one dimension |
| 2253 | Flat-Band Magnetism and Half-Metallicity in Twisted Bilayer Graphene | Lopez Bezanilla, Alejandro | We show that dynamic band-structure engineering in twisted bilayer graphene is possible by controlling the chemical composition with extrinsic doping, the interlayer coupling strength with pressure, and the magnetic ordering with external electric field. | Session 169: Transport in Graphene Systems |
| 2254 | Evidence for a three-layer-coherent quantum Hall state in graphene triple layers | Okounkova, Anna; Zeng, Yihang; Dean, Cory; Hone, James; Watanabe, Kenji; Taniguchi, Takashi | We demonstrate independent control of the density in each layer, giving access to the entire phase space of this system. | Session 169: Transport in Graphene Systems |
| 2255 | Nonlocal transport in twisted double bilayer graphene | Sinha, Subhajit; Adak, Pratap; R. S., Surya; Sangani, L. D. Varma; Watanabe, Kenji; Taniguchi, Takashi; Deshmukh, Mandar | We integrate both these ways of valley current generation and implement it on dual gated twisted double bilayer graphene device, where the two copies of bilayer graphene have been rotated by 1.18 o. | Session 169: Transport in Graphene Systems |
| 2256 | Quantum Interferences in Monolayer Graphene PN Junctions | Zhang, Xi; Tsai, Kan-Ting; Luo, Yujie; Wang, Ke | Here we demonstrate preliminary experimental observations of quantum interferences based on these concepts. | Session 169: Transport in Graphene Systems |
| 2257 | Gate Controlled Suppression of Weak Localization in Bilayer Graphene due to Proximity Magnetic Effects | Arabchigavkani, Nargess; Somphonsane, Ratchanok; Ramamoorthy, Harrihera; He, Guanchen; Nathawat, Jubin; Yin, Shenchu; Barut, Bilal; Fransson, Jonas; Bird, Jonathan | In this study, we use differential conductance mapping to explore the transport properties in bilayer graphene at low temperatures, under conditions for which they are influenced by the proximal of the graphene to a ferromagnet (Co). | Session 169: Transport in Graphene Systems |
| 2258 | Mini-Dirac cones in AB-stacked graphene in perpendicular electric fields | Yagi, Ryuta; Horii, Kota; Ebisuoka, Ryoya; Tajima, Shingo; Watanabe, Kenji; Taniguchi, Takashi | By conducting low temperature magnetotransport experiments using encapsulated graphene samples with a top and a bottom gate electrode, we observed that mini-Dirac cones are formed in a perpendicular electric field. | Session 169: Transport in Graphene Systems |
| 2259 | Anomalous Quantum Hall States in Bilayer Graphene | Su, Jung-Jung; Lau, Chun Ning; MacDonald, Allan | We have explored how coupling of orbital magnetization to external B fields is manifested in the dependence of ground state properties on weak gate Vg and magnetic fields B that favor particular states. | Session 169: Transport in Graphene Systems |
| 2260 | Electronic Thermal Conductance Suppression in Lightly Doped Bilayer Graphene Measured via Johnson Noise Thermometry | Talanov, Artem; Waissman, Jonah; Arino, Marine; Taniguchi, Takashi; Watanabe, Kenji; Kim, Philip | We use our high-frequency Johnson noise thermometry technique to measure the electronic cooling of the electron system, extracting out the thermal conductivity. | Session 169: Transport in Graphene Systems |
| 2261 | Designing transport properties of graphene nanoribbon junctions | Cernevics, Kristians; Yazyev, Oleg | We systematically address the electronic transport properties of 60°- and 120°-angled junctions connecting a pair of GNR leads of identical width and chirality utilizing tight-binding model calculations. | Session 169: Transport in Graphene Systems |
| 2262 | In-situ TEM observation of suspended graphene during Joule heating process | Shin, Dong Hoon; Choi, Jun-Hee; Inani, Heena; Mustonen, Kimmo; Jeong, Hyunjeong; Kotakoski, Jani; Lee, Sang Wook | In-situ TEM observation of suspended graphene during Joule heating process | Session 169: Transport in Graphene Systems |
| 2263 | Excitonic Condensate Phase in Hybrid double-layer structures | Liu, Xiaoxue; Watanabe, Kenji; Taniguchi, Takashi; Dean, Cory; Li, Jia | In this talk I will present Coulomb transport measurement of exciton condensate phase in a hybrid double-layer structure, where twisted bilayer graphene (tBLG) and monolayer graphene (MLG) are separated by a thin insulating barrier. | Session 169: Transport in Graphene Systems |
| 2264 | High-order fractal quantum oscillations in highly doped graphene/BN superlattices | Shi, Wu; Kahn, Salman; Taniguchi, Takashi; Watanabe, Kenji; Crommie, Michael; Zettl, Alex | Here, we employed a newly developed electron beam doping technique to induce high electron and hole carrier densities in graphene/BN superlattices while maintaining high mobilities. | Session 169: Transport in Graphene Systems |
| 2265 | Proximity-induced spin-orbit coupling in bilayer graphene/WSe2 heterostructures probed by quantum Hall measurements | Wang, Dongying; Che, Shi; Cao, Guixin; LYU, RUI; Watanabe, Kenji; Taniguchi, Takashi; Lau, Chun Ning; Bockrath, Marc | Here we report a direct observation of SOC in a bilayer graphene/WSe 2 heterostructure in quantum Hall measurements [4]. | Session 169: Transport in Graphene Systems |
| 2266 | Atypical Quantized Hall Resistances in Millimeter-Scale Epitaxial Graphene p-n Junctions | Rigosi, Albert; Patel, Dinesh; Marzano, Martina; Kruskopf, Mattias; Hill, Heather; Jin, Hanbyul; Hu, Jiuning; Hight Walker, Angela; Liang, Chi-Te; Ortolano, Massimo; Callegaro, Luca; Newell, David | This work presents the resulting experimental data obtained from these devices when introducing multiple current inputs in several different configurations. | Session 169: Transport in Graphene Systems |
| 2267 | Spin waves in canted antiferromagnet of bilayer graphene | Fu, Hailong; Huang, Ke; Watanabe, Kenji; Taniguchi, Takashi; Zhu, Jun | We present the temperature, magnetic field, and electric field dependence of the zero-threshold signal and discuss potential origins. | Session 169: Transport in Graphene Systems |
| 2268 | Eu intercalation in Highly Ordered Pyrolytic Graphite (HOPG) | Masi, Chris; Wang, Aaron; Guisinger, Nathan; Chien, Te-Yu | Eu intercalation in Highly Ordered Pyrolytic Graphite (HOPG) | Session 170: Surface Studies of 2D Materials |
| 2269 | First-principles study of electronic structures of two-dimensional Y2C electride surfaces | Kim, Gunn; Lee, Junsu; Kim, Gwan Woo; Chae, Jinwoong | In this talk, we report the electronic structure of a two-dimensional Y 2C surface using the first-principles study. | Session 170: Surface Studies of 2D Materials |
| 2270 | The Moiré Superstructure of Graphene Intercalated with a Co Layer | Cardoso, Claudia; Varsano, Daniele; Ferretti, Andrea | The Moiré Superstructure of Graphene Intercalated with a Co Layer | Session 170: Surface Studies of 2D Materials |
| 2271 | A non-invasive SOI gating method for probing 2D transport on pristine chemically-terminated Si surfaces | Robertson, Luke; Kane, Bruce | To this end, we have developed a new technique to probe these pristine H-Si surfaces using a non-invasive SOI flip-chip gating assembly in which all critical device fabrication is performed on the SOI end. | Session 170: Surface Studies of 2D Materials |
| 2272 | Electronic Density of States of CrBr3 studied by Scanning Tunneling Microscopy and Spectroscopy (STM/S) | Baral, Dinesh; Fu, Zhuangen; Zadorozhnyi, Andrei; Dulal, Rabindra; Wang, Aaron; Shrestha, Narendra; Tang, Jinke; Dahnovsky, Yuri; Tian, Jifa; Chien, TeYu | Here, the study of thin flakes of CrBr 3 exfoliated on Highly Ordered Pyrolytic Graphite (HOPG) surface was performed using STM/S. | Session 170: Surface Studies of 2D Materials |
| 2273 | Two-dimensional conductive surface oxide on CrN(001) and Cr1-xAlxN(001) films | McGahay, Mary; Gall, Daniel | Two-dimensional conductive surface oxide on CrN(001) and Cr1-xAlxN(001) films | Session 170: Surface Studies of 2D Materials |
| 2274 | 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 170: Surface Studies of 2D Materials |
| 2275 | Edge states and no wetting layer in ultrathin Bi(110) films grown on graphene/6H-SiC(0001) | Lyu, Yanfeng; Daneshmandi, Samira; Huyan, Shuyuan; Chu, Paul C. W. | In this talk, we unambiguously demonstrate no wetting layer existing in epitaxial ultrathin Bi(110) films grown on graphene/6H-SiC(001) using low-temperature scanning tunneling microscopy/spectroscopy (STM/S). | Session 170: Surface Studies of 2D Materials |
| 2276 | Superconductivity in monolayer graphene driven by Ca and K doping | Endo, Yukihiro; Jung, Jehong; Iimori, Takushi; Akiyama, Ryota; Komori, Fumio; Hasegawa, Shuji | In this study, we have fabricated three samples: Ca-intercalated monolayer graphene grown on SiC(0001), and K or Ca+K adsorbed one on it to change the carrier concentration. | Session 170: Surface Studies of 2D Materials |
| 2277 | Growth of Silicene on Iodine/Silver (111) studied by low temperature scanning tunneling microscopy | Dreyer, Michael; DeMell, Jennifer; Butera, Robert | Growth of Silicene on Iodine/Silver (111) studied by low temperature scanning tunneling microscopy | Session 170: Surface Studies of 2D Materials |
| 2278 | Emerging electronic states in van der Walls hetero-bilayers | Kong, Xianghua; Guo, Hong | Here, we show that significant interlayer electronic hybridization occurs even for the most weak-interlayer coupled MoS 2/WSe 2 bilayer among MoS 2/WSe 2 , MoSe 2/PtSe 2 and PtS 2/PtSe 2 bilayers. | Session 170: Surface Studies of 2D Materials |
| 2279 | Selective adsorption of Dy on intercalated epitaxial graphene | Wang, Cai-Zhuang; Kim, Minsung; Hupalo, Myron; Tringides, Michael; Thiel, Pat; Ho, Kai-Ming | In this study, we present an effective method to control the adsorption and nucleation property of metal ions on graphene via metal intercalation. | Session 170: Surface Studies of 2D Materials |
| 2280 | Theory of Epitaxial Growth of Borophene on Layered Electride: Thermodynamic Stability and Kinetic Pathway | Ni, Xiaojuan; Huang, Huaqing; Jin, Kyung-Hwan; Wang, Zhengfei; Liu, Feng | Based on first-principles calculations, we propose that the layered electride can serve as an effective substrate, in place of metal substrate, to grow borophene. | Session 170: Surface Studies of 2D Materials |
| 2281 | Electronic structures of air-exposed few-layer black phosphorus by optical spectroscopy | wang, fanjie; Zhang, Guowei; Huang, Shenyang; Song, Chaoyu; Wang, Chong; Xing, Qiaoxia; Lei, Yuchen; Yan, hugen | Our study may provides a convenient and exotic way for band-structure engineering of few-layer black phosphorus through controllable air-exposure or defect creation. | Session 170: Surface Studies of 2D Materials |
| 2282 | Dynamics of Vibration-Cavity Polaritons | Owrutsky, Jeffrey; Grafton, Andrea; Dunkelberger, Adam; Simpkins, Blake | We explore salient features of the transient response, especially at short delay times, which show aspects of the response that are due to polaritons and are distinguished from uncoupled higher order excitations. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2283 | Kinetic effects of vibrational polaritons in electron transfer. | Campos Gonzalez Angulo, Jorge; Ribeiro, Raphael; Yuen-Zhou, Joel | In this work, we show how VSC can induce catalysis in electron transfer, as described by the Marcus-Levich-Jortner formalism, by providing low activation energy channels that dominate the kinetics even when they are largely outnumbered by channels with unmodified activation energy. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2284 | Molecular dipole moment drives the dynamics of vibrational polaritons in the strong and ultrastrong coupling regimes | Triana Galvis, Johan; Hernández, Federico; Herrera, Felipe | We show that the electric dipole function strongly determines the dynamics of vibrational polaritons, and we describe such dependence in detail. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2285 | Strong Coupling of Terahertz Fields to Collective Intermolecular Vibrations | Damari, Ran; Weinberg, Omri; Krotkov, Daniel; Demina, Natalia; Akulov, Katherine; Golombek, Adina; Fleischer, Sharly; Schwartz, Tal | We observed a Rabi-splitting of ~70 GHz, and directly probe the Rabi-oscillations in the coupled system. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2286 | Polariton-mediated vibrational ladder climbing | Ribeiro, Raphael; Yuen-Zhou, Joel | In this work, we present a theoretical treatment of VLC under strong infrared coupling, where the collective vibrational polarization efficiently exchanges energy reversibly with the electromagnetic field of an optical microcavity and hybrid light-matter excitations (polaritons) emerge. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2287 | Exploring Vibrational Polariton Dynamics with Ultrafast Two-Dimensional Infrared Spectroscopy | Duan, Rong; Crum, Vivian; Kubarych, Kevin | This talk will introduce and review the key principles and molecular observables central to 2D-IR, while demonstrating its application to a vibrational polariton system. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2288 | Controling quantum pathways in the vibrational polaritons system | Yang, Zimo; Xiong, Wei; Xiang, Bo | Using mid-IR pulse shaper, we report a way to selectively excite quantum pathways, to directly measure polariton nonlinear responses involving either coherence or population states. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2289 | Remote of chemistry in optical cavities | Du, Matthew; Ribeiro, Raphael; Yuen-Zhou, Joel | Here, we propose a remote control of chemistry whereby photoexcitation of molecules in one optical microcavity influences the photochemical reactivity of molecules in another microcavity. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2290 | Cavity-Modified Chemical Reaction Kinetics and Electrochemical Modulation of Coupling Strength | Simpkins, Blake; Ahn, Wonmi; Dunkelberger, Adam; Grafton, Andrea; Pietron, Jeremy; Fears, Kenan; Owrutsky, Jeffrey | In this talk, we discuss (1) cavity-modified chemical reactivity and (2) modulation of the strong coupling phenomenon via electrochemical reaction. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2291 | Ultrastrong coupling in hexagonal Boron Nitride microcavities | Muniain, Unai; Barra-Burillo, Maria; Esteban, Ruben; Catalano, Sara; Autore, Marta; Hueso, Luis; Hillenbrand, Rainer; Aizpurua, Javier | In this contribution, we study an infrared Fabry-Perót microcavity formed by metallic mirrors, filled with hexagonal Boron Nitride (hBN) acting as a phononic material [2]. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2292 | Resonant Rayleigh Scattering from Collective Molecular Excitations | Balasubrahmaniyam, Mukundakumar; Golombek, Adina; Kaeek, Maria; Hadar, Keren; Schwartz, Tal | Here, we study RRS from molecular ensembles strongly coupled to an optical microcavity. | Session 171: The Chemical Physics of Molecular Polaritons III. Vibrational Strong Coupling |
| 2293 | Introducing open boundary conditions in modeling nonperiodic materials and interfaces | Charles, James; Kais, Sabre; Kubis, Tillmann | We introduce the first method of open boundary conditions in material and interface modeling. | Session 172: Thin Film nucleation, growth, and morphology |
| 2294 | Morphology and Mechanical Response of a Compressed Cylindrical Shells | Fan Chiang, Hung-Chieh; Li, Hsin-Huei; Hong, Tzay-Ming | To clarify these problems, we perform both experiments and Molecularly Dynamics simulation. | Session 172: Thin Film nucleation, growth, and morphology |
| 2295 | Up against a wall: interfacial free energies at curved surfaces | Martin, Seth; Laird, Brian | Here we present simulation results for the 2-dimensional hard-disk fluid model at curved, hard, structureless walls and use the simulation results to test the limits of currently available analytical theories for interfacial free energy, including Morphometric Thermodynamics. | Session 172: Thin Film nucleation, growth, and morphology |
| 2296 | Two-step Unconventional Protocol for Epitaxial Growth in One Dimension with Hindered Reactions | Sánchez, Julián; González, Diego; Einstein, Theodore | We describe the time evolution of the system in terms of the monomer and island densities, N 1 and N. | Session 172: Thin Film nucleation, growth, and morphology |
| 2297 | Foamability of oil mixtures | TRAN, Hoai-Phuong; Talini, Laurence; Lequeux, François | We show that the variations of foam lifetime with mixture composition is quantitatively described by the model. | Session 172: Thin Film nucleation, growth, and morphology |
| 2298 | Coupled Sublattice Melting and Charge-Order Transition in Two Dimensions | Smith, Tyler; Ming, Fangfei; Trabada, D.G.; Gonzalez, Cesar; Soler-Polo, Diego; Flores, Fernando; Ortega, José; Weitering, Hanno | Here we report on a novel melting transition of a charge-ordered K-Sn alloy monolayer on a silicon substrate. | Session 172: Thin Film nucleation, growth, and morphology |
| 2299 | Quantification of multiple crystallite orientations in complex thin film materials | Ogle, Jonathan; Powell, Daniel; Amerling, Eric; Smilgies, Detlef-M.; Whittaker-Brooks, Luisa | Herein, we present a new method for quantifying the orientational distribution of crystallites, dubbed the Mosaicity Factor (MF). | Session 172: Thin Film nucleation, growth, and morphology |
| 2300 | The role of He and H on the structural evolution of He- and H-irradiated 6H-SiC | Daghbouj, Nabil; Li, bingsheng; Callisti, Mauro; Sener sen, Huseyin; Karlik, Miroslav; Lin, Jie; OU, Xin; Polcar, Tomas | The role of He and H on the structural evolution of He- and H-irradiated 6H-SiC | Session 172: Thin Film nucleation, growth, and morphology |
| 2301 | Epitaxial growth of cubic WCy(001) thin films | Fang, Peijiao; Wang, Baiwei; Mulligan, Christopher; Murray, Thomas; Khare, Sanjay; Gall, Daniel | Epitaxial growth of cubic WCy(001) thin films | Session 172: Thin Film nucleation, growth, and morphology |
| 2302 | InAs(111) Homoepitaxy with Molecular Beam Epitaxy | Vallejo, Kevin; Garrett, Trent; Saythavy, Kevin; Sautter, Kathryn; Liang, Baolai; Simmonds, Paul | In this study we have mapped the growth parameters for optimal homoepitaxy of InAs on InAs(111)A substrates using molecular beam epitaxy. | Session 172: Thin Film nucleation, growth, and morphology |
| 2303 | Droplet spreading on a surface exhibiting solid-liquid interface premelting | Yang, Yang; Laird, Brian | We study, using molecular-dynamics simulation, the spreading kinetics and equilibrium shape of liquid Pb droplets on an Al(111) substrate. | Session 172: Thin Film nucleation, growth, and morphology |
| 2304 | Visualization of Nanorod Assembly and Dynamics on Liquid Surfaces | Srivastava, Satyam; fink, zachary; Kim, Paul; Ribbe, Alexander; Hoagland, David; Russell, Thomas | Visualization of Nanorod Assembly and Dynamics on Liquid Surfaces | Session 172: Thin Film nucleation, growth, and morphology |
| 2305 | Effects of short-range repulsive barriers on island nucleation | Hamadna, Sameer; Khatri, Indiras; Amar, Jacques | Here we present the results of kinetic Monte Carlo simulations for the case of extended 2D islands with critical island-size i = 1 which were carried out to determine the dependence of the exponent χ (describing the dependence of the peak island density on deposition rate) on barrier strength and ratio R = D/F of the monomer hopping rate D to deposition rate F. | Session 172: Thin Film nucleation, growth, and morphology |
| 2306 | X-ray Photon Correlation Spectroscopy Studies of Ion Beam Nanopatterning Kinetics and Dynamics | Myint, Peco; Zhang, Xiaozhi; Erb, Denise; Fluerasu, Andrei; Wiegart, Lutz; Zhang, Yugang; Facsko, Stefan; Headrick, Randall; Ludwig, Karl | In this study, the surface sensitive X-ray technique of Grazing-Incidence Small-Angle X-ray Scattering (GISAXS) is used to do real-time investigations of nano-pattern formation on Silicon and Germanium due to Ar + and Kr + bombardment. | Session 172: Thin Film nucleation, growth, and morphology |
| 2307 | Recent Applications of Voronoi Tesselation and Analysis of Their Size Distributions with the Generalized Wigner Surmise | Einstein, Theodore | Here we discuss some intriguing examples: Mitko et al. (2019) consider the evolution of morphology during growth of island films of low-e dielectric films via vapor deposition polymerization. | Session 172: Thin Film nucleation, growth, and morphology |
| 2308 | Infinite Matrix Product States for Spin-Liquid Wavefunctions | Petrica, Gabriel; Zheng, Bo-Xiao; Chan, Garnet; Clark, Bryan | We present here a highly parallelizable, efficient method to obtain an infinite matrix product state for Gutzwiller projected mean-field wave-functions, a common variational class of wavefunctions used to study quantum spin liquids. | Session 173: Topology in Magnetic Systems |
| 2309 | Spinon Fermi surface in the Kitaev model induced by staggered magnetic field | Zhang, Jing-Yun; Yao, Hong | In this talk, we will discuss the effect of a staggered external magnetic field in the B phase. | Session 173: Topology in Magnetic Systems |
| 2310 | A New Synthetic Quantum Spin Liquid Candidate CCO111 | Liu, Xiaoran; Singh, Sobhit; Asaba, Tomoya; Brewer, Jess; zhang, qinghua; Freeland, John; Middey, Srimanta; Kareev, Mikhail; Sarma, Dipankar Das; Shafer, Padraic; Arenholz, Elke; Li, Lu; Vanderbilt, David; Chakhalian, Jak | Here, we present a new synthetic candidate QSL material successfully templated from (111)-oriented CoCr 2O 4 by pulsed laser deposition. | Session 173: Topology in Magnetic Systems |
| 2311 | Dynamics of chiral spin liquids in the Kitaev-Yao-Kivelson model | Li, Bohai; Zhang, Jing-Yun; Yao, Hong | We perform a theoretical study of the dynamical structure factor in both Abelian and non-Abelian phases of this model. | Session 173: Topology in Magnetic Systems |
| 2312 | Z2 topological quantum spin liquids with only two-body Ising interactions and transverse fields | Wu, Kai-Hsin; Chamon, Claudio; Sandvik, Anders | In the recent study[1], the authors proposed a generalization of the transverse-field Ising model which can realize the Z 2 gauge theory with only simple two-body interaction. | Session 173: Topology in Magnetic Systems |
| 2313 | Numerical evidence of a chiral spin liquid in the spin-1/2 honeycomb XY model | Huang, Yixuan; Dong, Xiaoyu; Sheng, Donna; Ting, Chin-Sen | We obtain a quantum phase transition and a non-magnetic phase with finite scalar chiral order when we turn on a small chiral interaction. | Session 173: Topology in Magnetic Systems |
| 2314 | 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 173: Topology in Magnetic Systems |
| 2315 | Finding the Generalized Gibbs Ensemble in the Real Space Entanglement Spectra of (2+1)-dimensional Chiral Topological Systems | Arildsen, Mark; Ludwig, Andreas | We fitted the splittings in these ES with sets of (irrelevant) conserved quantities and find that for the most part, we confirm their correspondence with the GGE picture outlined above. | Session 173: Topology in Magnetic Systems |
| 2316 | Exchange Bias and Quantum Anomalous Hall Effect in the MnBi2Te4-CrI3 Heterostructure | Fu, Huixia; Liu, Chao-Xing; yan, binghai | In this work, we propose to induce out-of-plane surface magnetism of MnBi 2Te 4 films via the magnetic proximity with magnetic insulator CrI 3. | Session 173: Topology in Magnetic Systems |
| 2317 | ARPES studies on antiferromagnetic topological insulators MnBi2nTe3n+1 | Hu, Yong; Chen, C.-F.; Xu, Gang; Chen, Xianhui; He, Junfeng | In this talk, we report angle-resolved photoemission spectroscopy (ARPES) studies on a series of the heterostructures MnBi 2nTe 3n+1 (n=1,2,3). | Session 173: Topology in Magnetic Systems |
| 2318 | Surface state single Dirac cone in magnetic material GdxSb2-xTe3. | Kabir, Firoza; Hosen, M. Mofazzel; Ding, Xiaxin; Dhakal, Gyanendra; Dimitri, Klauss; Sims, Christopher; Regmi, Sabin; Neff, William; Zhu, Jian-Xin; Pathak, Arjun; Gofryk, Krzysztof; Neupane, Madhab | We demonstrate that the dynamics of spin Dirac fermions of Sb 2Te 3 can be controlled through Gd doping, making this magnetic material classes potentially suitable for topological device applications. | Session 173: Topology in Magnetic Systems |
| 2319 | Photon energy and polarization dependent electronic structure of Cr doped Bi2Se3 thin films | Yilmaz, Turgut; Gu, Genda; Vescovo, Elio; Kaznatcheev, Konstantine; Sinkovic, Boris | Here, we reported a comparison study of photon energy and photon polarization dependent electronic structure of Cr-doped and pristine Bi2Se3 to reveal the topological phase in transition metal doped topological insulators. | Session 173: Topology in Magnetic Systems |
| 2320 | Electronic structure of topological insulator Bi2Se3 thin films on thulium iron garnet heterostructures | Huang, Sheng-Wen; Lin, Keng-Yung; Chen, Chun-Chia; Guo, Mengxin; Cheng, Chao-Kai; Cheng, Cheng-Maw; Hong, Minghwei; Kwo, Jueinai | In this work, TI films Bi 2Se 3 were grown by molecular beam epitaxy on ferromagnetic thulium iron garnet (TmIG) with perpendicular magnetic anisotropy and high T C above 500K. | Session 173: Topology in Magnetic Systems |
| 2321 | Path to building quantum spin liquids and topological qubits within existing quantum hardware | Yang, Zhicheng; Green, Dmitry; Chamon, Claudio | We address a central problem in the creation and manipulation of quantum states: how to build topological quantum spin liquids with physically accessible interactions. | Session 173: Topology in Magnetic Systems |
| 2322 | Theory and implementation of nonlinear X-ray spectroscopies: application to time-resolved diffraction, X-ray chirality and transient grating experiments | Rouxel, Jeremy; Mukamel, Shaul | We present how X-ray experiments can make use of their element selectivity to probe matter chirality with additional structural information. | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2323 | Quantum control of high-energy harmonic generation by pulse shaping | Gui, Guan; Karl, Robert; Thurston, Jeremy; Johnsen, Peter; Bevis, Charles; Binnie, Iona; Kapteyn, Henry; Murnane, Margaret; Liao, Chen-Ting | Here we demonstrate the ability for enhancing the HHG flux and spectrum at higher photon energies around ~100eV, relevant for imaging and magnetic spectroscopies. | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2324 | Attosecond soft-X-ray spectroscopy in the gas and liquid phases | Woerner, Hans Jakob | A promising approach is offered by the element- and site-sensitivity of X-ray spectroscopy. | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2325 | Probing Photo-Physical Processes in Solid-state Organic Semiconductors Using Optical Pump – X-ray Probe Spectroscopy | Toney, Michael; Abeldsamie, Maged; Vigil, Julian; Cordones-Hahn, Amy; schneider, sebastian; Reid, Obadiah; Allen, Taylor; Rumbles, Garry; Zhang, Xiaoyi | Here, using Tr-XAS combined with transient absorption spectroscopy and transient microwave conductivity, we investigate the local structure and time evolution of photoinduced charge-separated species in thin films of molecularly dispersed octabutoxy-Zinc(II) phthalocyanine (OButx-ZnPc) in a matrix of the well-known conjugated polymer poly(3-hexylthiophene) (P3HT). | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2326 | Enhancement of X-ray image brightness through transient ionic resonances | Gorkhover, Tais | Our recent study at LCLS suggests that transient ionic resonances (TIR) above an absorption edge can enhance diffraction efficiency before significant structural damage can occur. | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2327 | Ultrafast X-ray Absorption and Time-Resolved Resonant X-ray Scattering in a Mott Insulator | Moritz, Brian; Wang, Yao; Chen, Yuan; Jia, Chunjing; Devereaux, Thomas | This work provides a theoretical foundation for existing and future tr-RIXS experiments. | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2328 | Ultrafast Dynamics and Imaging at the Nanoscale using Tabletop Coherent X-ray Sources | Kapteyn, Henry; Murnane, Margaret | Highlights include the discovery of a new regime of collective nanoscale heat transport,[5] and work highlighting our current incomplete understanding of dynamic mechanisms in magnetic materials. | Session 174: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |
| 2329 | Nickelate superconductivity –Formation of self-doped 2D single-orbital correlated electron systems in NdNiO2 | Nomura, Yusuke; Hirayama, Motoaki; Tadano, Terumasa; Yoshimoto, Yoshihide; Nakamura, Kazuma; Arita, Ryotaro | Nickelate superconductivity –Formation of self-doped 2D single-orbital correlated electron systems in NdNiO2 | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2330 | Nickelate superconductivity —A systematic computational design of dynamically stable d9 nickelates | Hirayama, Motoaki; Tadano, Terumasa; Nomura, Yusuke; Arita, Ryotaro | By systematically generating new potential nickelate structures and then performing ab initio phonon calculations, we theoretically propose more than 10 new compounds that are dynamically stable and whose electronic structures better mimic that of the cuprates. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2331 | Superconductivity in infinite-layer nickelates: similarities and differences from cuprates | Botana, Antia; Norman, Michael | From a comparison to their cuprate counterpart CaCuO 2, we derive essential facts related to their electronic structures, in particular, the values for hopping parameters and energy splittings, and the influence of the spacer cation. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2332 | Superconductivity in the infinite-layered nickelate (Nd,Sr)NiO2 based on multiorbital model construction | Sakakibara, Hirofumi; Usui, Hidetomo; Suzuki, Katsuhiro; Kotani, Takao; Aoki, Hideo; Kuroki, Kazuhiko | To investigate how these differences affect spin-fluctuation mediated superconductivity, we construct a seven-orbital model consisting of Ni 3 d and rare-earth 5 d orbitals by employing maximally localized Wannier functions and constrained random phase approximation. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2333 | Two-band model for magnetism and superconductivity in nickelates Nd1-xSrxNiO2 | Hu, Lun-Hui; Wu, Congjun | We suggest that after doping, the intra-orbital spin-singlet and inter-orbital spin-triplet double-hole (doublon) configurations of Ni 2+ are competing, and we construct a two-band Hubbard model by including both the 3d x^2-y^2 and 3d xy-orbitals. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2334 | d-wave superconductivity in the t−J model with spin one holes: possible applications to the nickelate superconductor Nd1−xSrxNiO2 | Zhang, Yahui; Vishwanath, Ashvin | Building on the observation that the Ni2+ ions resulting from hole doping are commonly found in the spin-triplet state, we introduce and study a variant of the t−J model in which the holes carry S=1. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2335 | Superconductivity in trilayer Nickelates | Nica, Emilian; Krishna, Jyoti; Yu, Rong; Si, Qimiao; Botana, Antia; Erten, Onur | Here, we consider alternate trilayer compounds [3] where the rare-earth bands are pushed away from the FS which only includes three Ni- dx2-y2 sheets. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2336 | Understanding magnetism in infinite-layer nickelates ab initio | Pardo, Victor; Fumega, Adolfo O.; Botana, Antia | In this talk, we will analyze the underlying electronic-structure mechanisms that lead to such different behavior in infinite-layer nickelates. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2337 | Robust dx2−y2 wave superconductivity of infinite-layer nickelates | Wu, Xianxin; Di Sante, Domenico; Schwemmer, Tilman; Hanke, Werner; Hwang, Harold; Raghu, Srinivas; Thomale, Ronny | Starting with first principles calculations, we construct two distinct tight-binding models, a simpler single-orbital as well as a three-orbital model, both of which capture the key low energy degrees of freedom to varying degree of accuracy. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2338 | Ground States of Infinite-Layer Nickelates at Strong Coupling: A Variational Study | Medhi, Amal; Chen, Chuan; Shenoy, Vijay; Chowdhury, Debanjan | Motivated by the recent discovery of superconductivity in infinite-layer nickelates, we study a two orbital model, including both nickel 3d and the rare-earth 5d orbitals, in the regime of strong local repulsive interactions. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2339 | Hole superconductivity in infinite-layer nickelates | Marsiglio, Frank; Hirsch, Jorge | We propose that the superconductivity recently observed in Nd$_{0.8}$Sr$_{0.2}$NiO$_2$ with critical temperature in the range $9$ K to $15$ K results from the same charge carriers and the same mechanism that we have proposed give rise to superconductivity in both hole-doped and electron-doped cuprates: pairing of hole carriers in oxygen $p\pi$ orbitals, driven by a correlated hopping term in the effective Hamiltonian that lowers the kinetic energy, as described by the theory of hole superconductivity. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2340 | A Determinant Quantum Monte Carlo Study of an Effective Low Energy Model for Infinite-layer Nickelates | Liu, Fangze; Huang, Xuxin; Moritz, Brian; Huang, Edwin; Devereaux, Thomas | Here, we use determinant quantum Monte Carlo (DQMC) simulations of a composite system, consisting of Hubbard-like Ni, or NiO2, layers coupled to metallic rare-earth layers, to investigate the physics associated with nickelate superconductors. | Session 175: Superconductivity: Nickelates II (Theory and Models) |
| 2341 | Polar Kerr effect measurements of UTe2 using Sagnac interferometry. | Wei, Di; Zhang, Jian; Ran, Sheng; Paglione, Johnpierre; Butch, Nicholas; Kapitulnik, Aharon | We present measurements of the polar Kerr effect using Sagnac interferometry in search for a possible TRS breaking state, and to examine ferromagnetic fluctuations in the Meissner and vortex states of this material. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2342 | Electrodynamic response of the unconventional superconductor UTe2 | Mekonen, Sirak; Barbalas, David; Chaudhuri, Dipanjan; Ran, Sheng; Fuhrman, Wesley; Butch, Nicholas; Armitage, Peter | Here we report results of measurements on the electrodynamic response of this compound down to low frequencies and temperatures. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2343 | Electronic structure of ferromagnetic superconductor UGe2 in comparison to UTe2 | Denlinger, Jonathan; Allen, James; Huxley, A.; Flouquet, Jacques | Electronic structure of ferromagnetic superconductor UGe2 in comparison to UTe2 | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2344 | Systematics of uranium-based superconducting materials. | Svanidze, Eteri | In this talk, I will provide a brief historic overview of superconductivity in uranium-based compounds, and address several pertinent questions [4]: Is superconductivity in uranium-based materials always unconventional? | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2345 | Revealing the intrinsic properties of the heavy-fermion superconductor UBe13 | Kozelj, Primoz; Stockert, Ulrike; Koenig, Markus; Leithe-Jasper, Andreas; Grin, Yuri; Hassinger, Elena; Svanidze, Eteri | Our work provides a novel way in which polycrystalline samples of UBe 13 can be studied. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2346 | Aluminium impurities in single crystals of the heavy-fermion superconductor UBe13 | Leithe-Jasper, Andreas; Amon, Alfred; Svanidze, Eteri; Simon, Paul; Bobnar, Matej; Zelenina, Iryna; Naumann, Marcel; Kozelj, Primoz; Hassinger, Elena; Grin, Yuri | We studied the influence of Al incorporation on the heavy fermion superconductor UBe 13 to explain the sample dependence of physical properties. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2347 | Generalized Spin Fluctuation Feedback in Heavy Fermion Superconductors | Amin, Adil; Agterberg, Daniel | Motivated by arguments originally developed for superfluid 3He we propose that a generalized spin fluctuation feedback effect is responsible for these two transitions. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2348 | Magnetic Field Dependent Low-Temperature Specific Heat in UCo1-xFexGe | Lee, Sangyun; Bauer, Eric; Ronning, Filip; Movshovich, Roman | In this talk, we discuss about quantum criticality of UCo 1-xFe xGe system. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2349 | Quantum phase transition and superconductivity in ferromagnetic heavy-fermion systems | Hu, Haoyu; Cai, Ang; Si, Qimiao | In this work, we study a periodic Anderson model with ferromagnetic RKKY interactions. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2350 | Angle Dependence of the Field-Induced Phases in UPt2Si2 | Chappell, Greta; Graf, David; Wei, Kaya; Lai, You; Nelson, William; Schundelmier, Benny; Mann, Chris; Baumbach, Ryan | Previous studies have established magnetic phase diagrams for applied fields along the a- and c-axes and suggest that the metamagnetic phase transitions (PT) may be associated with an evolution of the Fermi surface [1,2]. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2351 | Field induced phases in UCr2Si2 | Lai, You; Diaz, Jonas; Chappell, Greta; Moll, Philip; Baumbach, Ryan; McDonald, Ross | Here, we present an extensive study of the behavior in high magnetic fields. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2352 | Spectroscopic investigation of UFe2Si2, URu2Si2, UNi2Si2, and UPd2Si2: from Pauli paramagnetism to antiferromagnetism via the hidden order state. | Severing, Andrea; Amorese, Andrea; Sundermann, Martin; Haverkort, Maurits; Huang, Yingkai; Szlawska, Maria; Kaczorowski, Dariusz; Sheng, Ran; Maple, M Brian; Bauer, Eric; Leithe-Jasper, Andreas; Tjeng, Liu | We have determined the degree of the 5 f-electron localization (HAXPES [3]) as well as the symmetry of the 5f ground state wave function (NIXS [4]) across these very different compounds. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2353 | Origin of the gap-like behavior in pure and doped URu2Si2 : A combined study via quasiparticle scattering spectroscopy and resistivity measurements | Zhang, Shengzhi; Chappell, Greta; Baumbach, Ryan; Pouse, Naveen; Maple, M Brian; Greene, Laura; Park, Wan Kyu | As an alternative way to explain the gap-like behavior, we adopt a model based on gapped bosonic excitations in the ordered state [4]. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2354 | Structural studies of Fe-doped URu2Si2 near the hidden order transition using X-ray crystallography | Sun, Xiaolan; Mydosh, John; Pouse, Naveen; Maple, M Brian; Lee, Sangjun; Abbamonte, Peter | We used low-temperature x-ray crystallography to study the structure of URu 2Si 2, both with and without Fe doping. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2355 | Magnetostriction of URu2-xFexSi2 in High Magnetic Fields | Breindel, Alexander; Ran, Sheng; Pouse, Naveen; Jeon, Inho; Jaime, Marcelo; Maple, M Brian | In that vein, we conducted high field magnetostriction measurements on URu 2-xFe xSi 2. | Session 176: Uranium-Based Superconductors, Hidden Order, and Related Phases |
| 2356 | Effects of Forward Scattering from Dopant Impurities in Overdoped Cuprates | Hirschfeld, Peter; Mishra, Vivek; Lee-Hone, Nicholas; Ozdemir, Ulas; Broun, David | Here we investigate the effects of such forward scattering on the optical conductivity and the penetration depth, and make specific quantitative comparisons with both LSCO and Tl-2201. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2357 | Gauge-invariant microscopic kinetic theory of superconductivity in response to electromagnetic fields I: Application to current excitation | Yang, Fei; Wu, Ming-Wei | Therefore a three-fluid model, normal fluid and nonviscous and viscous superfluids, is proposed to capture both the magnetic and optical responses. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2358 | Phase-sensitive analysis of Higgs oscillations in quenched superconductors with time- and angle-resolved photo emission spectroscopy | Schwarz, Lukas; Manske, Dirk | Here, we study the time-resolved spectral function measured in angle-resolved photo emission spectroscopy after quenching the system using a general approach. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2359 | Driving the Higgs oscillation in cuprates: unveiling collective modes or interactions coupled to Cooper pairs | Chu, Hao; Kim, Min-Jae; Katsumi, Kota; Kovalev, Sergey; Dawson, Robert; Schwarz, Lukas; Yoshikawa, Naotaka; Kim, Gideok; Putzky, Daniel; Deinert, Jan-Christoph; Awari, Nilesh; Chen, Min; Christiani, Georg; Logvenov, Gennady; Gallais, Yann; Boris, Alexander; Keimer, Bernhard; Schnyder, Andreas; Manske, Dirk; Gensch, Michael; Wang, Zhe; Shimano, Ryo; Kaiser, Stefan | Careful analysis of the anti-resonance feature as a function of hole doping with the help of a coupled oscillators model suggests that the coupled mode could be the magnetic resonant mode. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2360 | Spectroscopic and optical response of odd-frequency Berezinskii superconductors | Sukhachov, Pavlo; Balatsky, Alexander | By using a simple model with a parabolic dispersion law and a non-magnetic disorder, the spectral function, the electron density of states, and the optical conductivity are calculated in clean and disordered Berezinskii superconductors for a few gap ansatzes. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2361 | Control of Supercurrents and Collective Modes in Superconductors by Terahertz Lightwave Propagation | Mootz, Martin; Perakis, Ilias; Wang, Jigang | To systematically describe the dynamic interplay of THz lightwave acceleration of Cooper-pair condensate and THz lightwave propagation inside the superconductor, we solve full nonlinear gauge-invariant Maxwell-Bloch equations beyond the Anderson pseudo-spin precession model that we derived by using a gauge-invariant non-equilibrium density matrix approach. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2362 | Giant Microwave Absorption in d-Wave Superconductors | Smith, Michael; Andreev, Anton; Spivak, Boris | We discuss a new mechanism of microwave absorption in d-wave superconductors which arises in the presence of a dc supercurrent. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2363 | High-Frequency Nonlinear Response of Superconducting Cavity-Grade Surfaces | Oripov, Bakhrom; Anlage, Steven | Efforts to image third harmonic response across Nb surfaces will be presented. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2364 | 2D THz spectroscopy and anomalous non-linear response of La2−xSrxCuO4 | Chaudhuri, Dipanjan; Mahmood, Fahad; Barbalas, David; He, Xi; Bozovic, Ivan; Armitage, Peter | Here we investigate the low frequency broadband non-linear optical response of LSCO across a wide range of doping as a function of temperature. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2365 | Terahertz conductivity of superconducting Beta-tungsten thin films | Armitage, Peter; Chauhan, Prashant; Budhani, Ramesh | We investigate the superconducting order in β-Tunsgten using high precision time-domain THz transmission spectroscopy. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2366 | Thickness dependence of superfluid density scaling in DyBa2Cu3O7-x thin films | Dawson, Robert; Putzky, Daniel; Christiani, Georg; Logvenov, Gennady; Keimer, Bernhard; Boris, Alexander | We find that in the ultra-thin film limit the temperature scaling rapidly approaches that expected for dirty s-wave SC, while with decreasing oxygen content the scaling shows the opposite trend. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2367 | Non-linear Vortex Dynamics and Dissipation at High-amplitude Microwave Drive | Checchin, Mattia; Grassellino, Anna; Romanenko, Alexander | In this talk, the description of the vortex dynamics and dissipation at arbitrary value of microwave field amplitude is discussed. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2368 | Optical properties of severely overdoped La1.75Sr0.25CuO4 | Homes, Christopher; Gu, Genda; Lozano, P. M.; Li, Qiang | The real part of the optical conductivity can be reproduced reasonably well at low frequency using a simple Drude model, yielding an estimate for the plasma frequency w pD ~ 9300 cm -1. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2369 | Doping-dependent phonon anomaly and charge order in Hg-family of high-Tc cuprates | Wang, Lichen; Yu, Biqiong; Jing, Ran; Luo, Xiangpeng; Zeng, Junbang; Li, Jiarui; Bialo, Izabela; Bluschke, Martin; Tang, Yang; Freyermuth, Jacob; Yu, Guichuan; Sutarto, Ronny; He, Feizhou; Weschke, Eugen; Tabis, Wojciech; Greven, Martin; Li, Yuan | Interestingly, we observe concomitant anomalies in the lattice dynamics that involve the motion of atoms in and/or adjacent to the CuO2 layers, around the same doping in both materials. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2370 | Gauge-invariant microscopic kinetic theory of superconductivity in response to electromagnetic fields II: Application to collective modes | Yang, Fei; Wu, Ming-Wei | We show that the gauge-invariant kinetic equation of superconductivity provides an efficient approach to study the electromagnetic response of the gapless Nambu-Goldstone and gapful Higgs modes on an equal footing. | Session 177: Superconductivity: Response to Electromagnetic Fields (Optical and Raman Spectroscopy, Surface Impedance, Etc.) |
| 2371 | Quantum cavities and Floquet materials engineering from first principles QEDFT | Rubio, Angel | We will provide an overview of how well-established concepts in the fields of quantum chemistry and materials have to be adapted when the quantum nature of light becomes important. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2372 | Investigating New Reactivities Enabled by Polariton Photochemistry | Mandal, Arkajit; Huo, Pengfei | We perform quantum dynamics simulations to investigate new chemical reactivities enabled by cavity quantum electrodynamics. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2373 | Polariton Mediated Charge Transfer Reaction through Cavity-Quantum Electrodynamics | Mandal, Arkajit; Huo, Pengfei | We study the polariton mediated electron transfer in a three-state model molecular system that describes the the photoinduced charge transfer process from an optically bright donor to an optically dark acceptor. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2374 | Polaronic effects on exciton-polaritons in two-dimensional metal-halide perovskite microcavities | Silva, Carlos | Here we address the fundamental question: are polaronic effects consequential for excitons in 2D-HIOPs? | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2375 | A variational approach for the dynamics of triplet harvesting in the polariton regime. | Martinez Martinez, Luis Angel; Eizner, Elad; Kena-Cohen, Stephane; Yuen-Zhou, Joel | Hereby, we extent the methodology toolbox to treat these systems by presenting a variational approach applicable to different regimes of vibronic and light-matter couplings for organic molecules. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2376 | Modifying reverse intersystem crossing with cavity polaritons | Fassioli Olsen, Francesca; DelPo, Courtney; Kudisch, Bryan; Park, Kyu Hyung; Fausti, Daniele; Scholes, Greg | In this work we investigate the nature of these intermediate states and how their dynamics and optical response deviate from those of molecules outside the cavity. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2377 | Multiscale Molecular Dynamics Simulations of Polaritonic Chemistry | Groenhof, Gerrit; Feist, Johannes; Toppari, Jussi | After presenting our model, we will discuss recent simulations that illustrate how the dynamics and reactivity of large ensembles of molecules are affected by their strong interaction with the confined light modes of the cavity. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2378 | Polariton assisted down-conversion of photons via nonadiabatic molecular dynamics: a molecular dynamical Casimir effect | Perez-Sanchez, Juan; Yuen-Zhou, Joel | We calculate the quantum dynamics of the photoisomerization of a single molecule embedded in an optical microcavity. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2379 | Cavity controlled inverse harmonic generation | Welakuh, Davis Dave; Tchenkoue Djouom, Mary-Leena Martine; Ruggenthaler, Michael; Appel, Heiko; Rubio, Angel | In the present work, we consider the case of a semiconductor quantum ring described in real space coupled to more than one mode and investigate a down-conversion process. | Session 178: The Chemical Physics of Molecular Polaritons IV. Photophysics 3 |
| 2380 | Analysis of thermal conductivity for pairing symmetry in high-Tc cuprate superconductors | Kim, H.-T.; Choi, Minguen | We redrew the curve of κ/T vs T 2 to the curve of κ vs T, deduced experimental data below 0.2 K unobservable by experiment through polynomial fitting, and discovered the behavior of the conductivity with nonlinear and no residual linear value. | Session 179: Superconductivity: Transport Properties |
| 2381 | 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 179: Superconductivity: Transport Properties |
| 2382 | Hall Conductivity in the Hubbard Model from Determinant Quantum Monte Carlo | Ding, Jixun; Wang, Wen; Schattner, Yoni; Moritz, Brian; Huang, Edwin; Devereaux, Thomas | We extend determinant quantum monte carlo (DQMC) to allow for the addition of a constant magnetic field to the usual Hubbard model hamiltonian. | Session 179: Superconductivity: Transport Properties |
| 2383 | Resistance oscillations in the quantum metal phase of lithium intercalated TiSe2 | Liao, Menghan; Wang, Heng; Zhu, Yuying; Rafique, Mohsin; Xu, Xiang; Yang, Lexian; Zhang, Ding; Xue, Qikun | In this work, we uncover quantum oscillations of this quantum metal or failed superconductor in a three-dimensional anisotropic superconductor—lithium intercalated TiSe 2. | Session 179: Superconductivity: Transport Properties |
| 2384 | Transport properties of EuTiO3-δ down to 50 mK | He, Jiaming; Zhou, Jianshi | We obtained high quality single crystal EuTiO 3 by floating zone method; oxygen deficiency is introduced by annealing the crystal at different temperatures. | Session 179: Superconductivity: Transport Properties |
| 2385 | Electronic phase diagram of Ta1-xMoxS2 and optimization of superconductivity in a charge density wave system | Salcedo- Pimienta, Jose; Mendoza Arenas, Juan; Echeverry, Jose; Fisher, Ian; Quiroga, Luis; Rodriguez, Ferney; Giraldo-Gallo, Paula | In this talk we present experimental transport results in single crystals of the solid solution Ta 1-xMo xS 2. | Session 179: Superconductivity: Transport Properties |
| 2386 | Thermoelectric Effects in Superconductor-Ferromagnetic Heterostructures | Blagg, Kirsten; Allen, Portia; Lloyd, Bradley; Lilly, Michael; Singh, Meenakshi | To this end, we have developed an experimental platform for the measurements of thermal and electrical transport in nanoscale devices at cryogenic temperatures. | Session 179: Superconductivity: Transport Properties |
| 2387 | Thermal Transport as a Probe of the Hidden Rashba Effect in the High Temperature Superconductor YBa2Cu3O6+x | Atkinson, Bill; Kampf, Arno | In this talk, I will discuss the origins of the effect in YBa 2Cu 3O 6+x, and show that the measurement of the transverse thermal conductivity in an in-plane magnetic field allows one to make a sensitive measurement of the Rashba coupling. | Session 179: Superconductivity: Transport Properties |
| 2388 | Giant Edelstein effect in the surface states of non-centrosymmetric superconductors | Ikeda, Yuhei; Yanase, Youichi | In this study, we theoretically demonstrate that the edge state of a non-centrosymmetric superconductor is a good candidate for efficient magnetization control. | Session 179: Superconductivity: Transport Properties |
| 2389 | Effect of Zeeman Splitting on Andreev Reflection in Quantum Hall–Superconductor Heterostructures | Cuozzo, Joseph; Hu, Xiang; Thomas, Stuart; Rossi, Enrico | We find that introducing a higher-order, spin-dependent contribution to the renormalized drift velocity in the effective model is important to obtain accurate results. | Session 179: Superconductivity: Transport Properties |
| 2390 | Manifestations of spin-orbit coupling in a cuprate superconductor | Raines, Zachary; Allocca, Andrew; Galitski, Victor | Exciting new work on Bi2212 shows the presence of non-trivial spin-orbit coupling effects as seen in spin resolved ARPES data [Gotlieb et al., Science, 362, 1271-1275 (2018)]. | Session 179: Superconductivity: Transport Properties |
| 2391 | A cyclic superconducting quantum refrigerator for adiabatic magnetization cooling | Kizhakkumpurath Manikandan, Sreenath; Giazotto, Francesco; Jordan, Andrew | We propose a solid-state refrigeration technique using adiabatic magnetization/ demagnetization cycles of a superconductor, acting as the working substance. | Session 179: Superconductivity: Transport Properties |
| 2392 | Parity dependent supercurrent amplitude and phase of InSb/Al hybridized island | Wang, Jiyin; Schrade, Constantin; Levajac, Vukan; van Driel, David; Gazibegovic, Sasa; Op het Veld, Roy; Li, Kongyi; Lee, Joon Sue; Pendharkar, Mihir; dempsey, connor; Palmstrom, Chris; Bakkers, Erik; Fu, Liang; Kouwenhoven, Leo; Shen, Jie | In such a device, we find switching current of the InSb/Al island depends on its parity and the corresponding superconducting phase also show parity-dependent behaviours. | Session 179: Superconductivity: Transport Properties |
| 2393 | Study on the pressure-induced superconducting phases of antimony | Wu, Zheng; Deng, Liangzi; Gooch, Melissa; Huyan, Shuyuan; Chu, Paul C. W. | Study on the pressure-induced superconducting phases of antimony | Session 179: Superconductivity: Transport Properties |
| 2394 | Andreev quantum dot chain in an InSb nanowire | Wu, Hao; Zhang, Po; Chen, Jun; Gazibegovic, Sasa; Op het Veld, Roy; Badawy, Ghada; Bakkers, Erik; Frolov, Sergey | We built a chain of quantum dots in a semiconductor nanowire to study the Kitaev model of a one dimensional topological superconductor. | Session 179: Superconductivity: Transport Properties |
| 2395 | Quantum Hall Effect in an Epitaxial Nitride Semiconductor/Superconductor Heterostructure | Dang, Phillip; Khalsa, Guru Bahadur; Katzer, D. Scott; Nepal, Neeraj; Downey, Brian; Wheeler, Virginia; Suslov, Alexey; Xie, Andy; Beam, Edward; Cao, Yu; Lee, Cathy; Xing, Huili; Meyer, David; Jena, Debdeep | To this end, we design an all-epitaxial superconductor/semiconductor nitride heterostructure, based on GaN two-dimensional electron gases (2DEGs) and superconducting NbN, using an industrial device process that is compatible with silicon and nitride semiconductor technology. | Session 179: Superconductivity: Transport Properties |
| 2396 | Transport properties of double quantum dots coupled to a superconductor | Zhang, Po; Wu, Hao; Khan, Sabbir; Krogstrup, Peter; Pekker, David; Frolov, Sergey | We experimentally investigate transport properties of a double dot electrostatically defined in an InAs nanowire by metallic gates under the wire. | Session 179: Superconductivity: Transport Properties |
| 2397 | Angular dependence of the magnetoresistance in HgBa2CuO4+δ | Schreiber, Katherine; Bauer, Eric; Harrison, Neil; Chan, Mun | Here we present measurements of the angular dependence of the c-axis magnetoresistance in the pseudogap regime of underdoped single layer cuprate HgBa 2CuO 4+ δ. | Session 179: Superconductivity: Transport Properties |
| 2398 | Hall effect measurements under high pressure for Pr2Ba4Cu7O15-δ supercondcutor | Ishikawa, Fumihiro; Sawada, Masaya; Ohmura, Ayako; Naka, Takashi; de Visser, Antheunis | High pressure study on Hall effect reveals the effect of pressure on electron carrier concentration for Pr247. | Session 179: Superconductivity: Transport Properties |
| 2399 | Influence of plastic deformation on the transport and magnetic properties of strontium titanate | Hameed, Sajna; Pelc, Damjan; Anderson, Zachary; Leighton, Chris; Greven, Martin | Building on our recent work on oxide superconductors [1], we explore another interesting property of STO: its high ductility at room temperature, which allows us to plastically deform single crystals using uniaxial pressure. | Session 179: Superconductivity: Transport Properties |
| 2400 | Anomalous transverse magnetoresistance in superconductor/ferromagnet multilayers | Palermo, Xavier; Mesoraca, Salvatore; Reyren, Nicolas; Sander, Anke; Collin, Sophie; Godel, Florian; Bouzehouane, Karim; Santamaria, Jacobo; Cros, Vincent; Buzdin, Alexandre; Villegas, Javier | We have studied the magnetoresistance of metallic multilayers composed of a low-T c superconductor (MoSi) and different ferromagnets (from single Co layers to combinations of these with heavy-elements) which present variable magnetic anisotropy and domain structure. | Session 179: Superconductivity: Transport Properties |
| 2401 | Higgs mode and tr-ARPES in Non-equilibrium Superconductors with a Moving Condensate | Kumar, Ankit; Kemper, Alexander | We analyze the dynamics of the Higgs mode through the electron spectral function which can be measured using angle-resolved photoemission spectroscopy (ARPES), and propose that the presence of supercurrent may help in the observation of the Higgs mode through time-resolved ARPES. | Session 179: Superconductivity: Transport Properties |
| 2402 | Magnetoconductance of planar cuprate superconductor/graphene junctions | Seurre, Kevin; Humbert, Vincent; Perconte, David; Ulysse, Christian; Sander, Anke; Trastoy Quintela, Juan; Dlubak, Bruno; Seneor, Pierre; Villegas, Javier | Here we study planar high-T c superconductor/graphene junctions fabricated by transferring CVD graphene onto optimally doped c-axis PDL grown YBaCuO 7-x films, which are patterned using electron lithography and ion irradiation. | Session 179: Superconductivity: Transport Properties |
| 2403 | Non-Majorana quantized zero-bias conductance peaks in semiconductor nanowire devices | Gomanko, Maksim; Yu, Peng; Badawy, Ghada; Gazibegovic, Sasa; Op het Veld, Roy; Bakkers, Erik; Chen, Jun; Frolov, Sergey | We observed quantized zero bias conductance peaks at one end of similar nanowire devices, without observing matching zero bias peak of any height on the other side. | Session 179: Superconductivity: Transport Properties |
| 2404 | Versatile and selective platform for high-quality hybrid semiconductor-superconductor nanowire devices. | Loo, Nick; Mazur, Greg P.; Heedt, Sebastian; Quintero Perez, Marina; Borsoi, Francesco; Fursina, Alexandra; van de Poll, May An; Van Hoogdalem, Kevin; Badawy, Ghada; Gazibegovic, Sasa; Bakkers, Erik; Kouwenhoven, Leo | In voltage-bias spectroscopy, we observe multiple Andreev reflections indicating a highly-transparent interface. | Session 179: Superconductivity: Transport Properties |
| 2405 | Design and discovery of CaKRu4P4: a new member of the generalized 1144 structure. | Xu, Mingyu; Andriy, Palasyuk; Bud’ko, Sergey; Song, Boqun; Ho, Kai-Ming; Canfield, Paul | Design and discovery of CaKRu4P4: a new member of the generalized 1144 structure. | Session 179: Superconductivity: Transport Properties |
| 2406 | Aperiodic Topological Crystalline Insulators | Huang, Huaqing; Wu, Yong-Shi; Liu, Feng | Here we demonstrate the compatibility of TCIs with aperiodic systems, as exemplified by an octagonal quasicrystal. | Session 180: Topological Crystalline Phases |
| 2407 | Real Space Invariants: Spectral Flow of Fragile Topological State under Twisted Boundary Conditions | Song, Zhida; Elcoro, Luis; Regnault, Nicolas; Bernevig, Andrei | In this paper, we propose the twisted boundary condition as a generic approach to theoretically and experimentally detect the fragile topological state. | Session 180: Topological Crystalline Phases |
| 2408 | Electron localization in fragile topological crystalline phases | Queiroz, Raquel; Ilan, Roni; Song, Zhida; Stern, Ady; Bernevig, Andrei | In this talk, I will present a numerical study of localization in fragile topological insulators, relevant for recent experimental developments. | Session 180: Topological Crystalline Phases |
| 2409 | Fragile Topology Protected by Inversion Symmetry: Diagnosis, Bulk-Boundary Correspondence, and Wilson Loop | Hwang, Yoonseok; Ahn, Junyeong; Yang, Bohm-Jung | We study the bulk and boundary properties of fragile topological insulators (TIs) protected by inversion symmetry, mostly focusing on the class A insulator. | Session 180: Topological Crystalline Phases |
| 2410 | Crystalline topological phases without symmetry indicators | Kooi, Sander; van Miert, Guido; Ortix, Carmine | We show these crystalline invariants are also well-defined in quantum spin Hall systems and use this to construct a hybrid-order weak TI [5], which is both a weak and higher-order TI. | Session 180: Topological Crystalline Phases |
| 2411 | Topology of chiral insulators | Guzmán, Marcelo; Bartolo, Denis; Carpentier, David | In this work, we focus on materials, or metamaterials, having a chiral symmetry, such as crystals with a sub-lattice symmetry and all mechanical systems assembled from beads and springs. | Session 180: Topological Crystalline Phases |
| 2412 | Boundary obstructed topological phases | Khalaf, Eslam; Benalcazar, Wladimir; Hughes, Taylor; Queiroz, Raquel | We show that the double-mirror quadrupole model of [Science, 357(6346), 2018] is a prototypical example of such phases, and present a detailed analysis of boundary obstructions in this model. | Session 180: Topological Crystalline Phases |
| 2413 | Topological Crystalline States with Non-trivial Relative Group Cohomology | Timmerman, Sydney; Li, Yi | We develop the method of relative group cohomology to study novel topological crystalline states characterized by non-trivial relative group cohomology and their relation to fragile topological crystalline states. | Session 180: Topological Crystalline Phases |
| 2414 | Topological Invariants of a Filling-Enforced Quantum Band Insulator | Krishnan, Abijith; Po, Hoi Chun; Vishwanath, Ashvin | In this work, we study such relations for a particularly interesting example of an feQBI realized with spinless fermions in space group 106. | Session 180: Topological Crystalline Phases |
| 2415 | Fermions in ZN Gauge Fields: From Chern Insulators to Higher-Order Topological Insulators | Shenoy, Vijay; Rana, Shubham | Here, we show how a higher-order topological insulator emerges in a system of fermions coupled to Z N gauge fields. | Session 180: Topological Crystalline Phases |
| 2416 | Type-II quadrupole topological insulators | Yang, Yanbin; Li, Kai; Duan, Luming; Xu, Yong | We propose an experimental scheme to realize such a new topological phase of matter. | Session 180: Topological Crystalline Phases |
| 2417 | Layer Construction of Topological Crystalline Insulator LaSbTe | Qian, Yuting; Tan, Zhiyun; Zhang, Tan; Gao, Jiacheng; Wang, Zhijun; Fang, Zhong; Fang, Chen; Weng, Hongming | In this work, based on first-principles calculations we have revealed that both the tetragonal LaSbTe (t-LaSbTe) and the orthorhombic LaSbTe (o-LaSbTe) can be looked as a stacking of 2D topological insulators in each lattice space. | Session 180: Topological Crystalline Phases |
| 2418 | Filling-enforced Dirac loops and their evolutions under various perturbations | Shao, Dexi | Based on symmetry analysis, we find that filling-enforced Dirac loops (FEDLs) in non-magnetic systems exist in only five space groups. | Session 180: Topological Crystalline Phases |
| 2419 | Phonon-assisted Floquet engineering of second-order topological phases | Chaudhary, Swati; Haim, Arbel; Peng, Yang; Refael, Gil | In this work, we discuss how a coherently excited phonon mode can be used to promote a spatial symmetry with which the static system is always trivial, to a space-time symmetry which supports non-trivial Floquet higher-order topological phase. | Session 181: Topological Phases in Floquet Systems |
| 2420 | Majorana states in a spin or qubit chain with a resonantly modulated coupling | Dykman, Mark | We show that a spin or qubit chain with the qubit coupling modulated close to twice the qubit frequency maps on the Kitaev chain. | Session 181: Topological Phases in Floquet Systems |
| 2421 | A periodic classification of local unitary operators | Harper, Fenner; Liu, Xu; Roy, Rahul | We present a complete topological classification of single particle local unitary operators, which are usually represented by local unitary matrices. | Session 181: Topological Phases in Floquet Systems |
| 2422 | Classification of Interacting Floquet Phases with U(1) Symmetry | Zhang, Carolyn; Levin, Michael | In this talk, we consider interacting Floquet topological phases with U(1) charge conservation symmetry in two spatial dimensions. | Session 181: Topological Phases in Floquet Systems |
| 2423 | Emergent topological phases in synthetic dimensions with low-frequency laser pumping | Tang, Peizhe; Sato, Shunsuke; Rubio, Angel | Here, we consider the 2D Dirac systems under strong external optical driving. | Session 181: Topological Phases in Floquet Systems |
| 2424 | Floquet second-order topological insulator | Seshadri, Ranjani; Dutta, Anirban; Sen, Diptiman | In this work, a variant of the well-known Bernevig-Hughes-Zhang (BHZ) model is used to construct a two-dimensional HOTI. | Session 181: Topological Phases in Floquet Systems |
| 2425 | Out of equilibrium higher-order topological insulator: Floquet engineering and quench dynamics | Nag, Tanay; Juricic, Vladimir; Roy, Bitan | We here demonstrate the possibility of realizing a two-dimensional \emph{Floquet} second-order topological insulator, featuring corner localized zero quasienergy modes and characterized by quantized Floquet qudrupolar moment $Q^{\rm Flq}_{xy}=0.5$, by periodically kicking a quantum spin Hall insulator (QSHI) with a discrete four-fold ($C_4$) and time-reversal (${\mathcal T}$) symmetry breaking mass perturbation. | Session 181: Topological Phases in Floquet Systems |
| 2426 | Floquet topological flat bands in two-dimensional systems | Tahir, Muhammad; Chen, Hua | Here, we propose a general approach to realizing Floquet flat bands with nontrivial topology in 2D or quasi-2D systems subject to circularly-polarized light. | Session 181: Topological Phases in Floquet Systems |
| 2427 | Topological Correspondence between Hermitian and Non-Hermitian Systems: Anomalous Dynamics | Lee, Jong Yeon; Ahn, Junyeong; Zhou, Hengyun; Vishwanath, Ashvin | In this work, we show that for every Hermitian anomalous boundary mode of the ten Altland-Zirnbauer classes, a non-Hermitian counterpart can be constructed, whose long time dynamics provides a realization of the anomalous boundary state. | Session 181: Topological Phases in Floquet Systems |
| 2428 | Bulk-edge correspondence and robustness of edge states in a non-unitary three-step quantum walk with PT symmetry | Obuse, Hideaki; Kawasaki, Makio; Mochizuki, Ken; Kawakami, Norio | In the present work, we study topological phases and the associated multiple edge states in non-unitary three-step quantum walks with PT symmetry in one dimension[2]. | Session 181: Topological Phases in Floquet Systems |
| 2429 | A bulk edge connection for Class AIII Floquet insulators | Liu, Xu; Harper, Fenner; Roy, Rahul | We propose edge and bulks invariants for Floquet systems in Class AIII in arbitrary dimensions. | Session 181: Topological Phases in Floquet Systems |
| 2430 | Kagome lattice network model as a chiral Floquet topological insulator | Wilczak, Matteo; Kimchi, Itamar; Gurarie, Victor; Efimkin, Dmitry | We describe a new topological invariant which is a modified version of the chiral Floquet invariant proposed by Rudner et al. and does not require the construction of an effective Hamiltonian, and which correctly counts the number of edge modes in each spectral gap. | Session 181: Topological Phases in Floquet Systems |
| 2431 | Analysis of Topological States in a Floquet-driven Non-Hermitian System | Harter, Andrew; Hatano, Naomichi | By using a simple two-step, pulsed time dependence, we explore the entire range of driving frequencies to highlight new regions of stability, including those which are explicitly below the high-frequency regime. | Session 181: Topological Phases in Floquet Systems |
| 2432 | Light-induced Topological Insulator with Superlattice Structure | Kim, Hwanmun; Dehghani, Hossein; Aoki, Hideo; Martin, Ivar; Hafezi, Mohammad | We study the superlattice structure created by light on 2D material. | Session 181: Topological Phases in Floquet Systems |
| 2433 | High-temperature Floquet fractional quantum Hall state in a Kagome lattice with photo-inverted hopping | Liu, Hang; Sethi, Gurjyot; Zhou, Yinong; Sun, Jia-Tao; Meng, Sheng; Liu, Feng | Here we show that time-periodic circularly polarized laser (CPL) can effectively invert second-nearest-neighbor kinetic hopping in a Kagome lattice and simultaneously enhance spin-orbit coupling (SOC) in one spin channel, so as to produce an isolated flat Chern band exhibiting high-temperature Floquet FQH effect. | Session 181: Topological Phases in Floquet Systems |
| 2434 | Work Function Studies of Carbon Nanospikes for Electrochemistry by UPS | Baddorf, Arthur; Song, Yang; Hensley, Dale; Rondinone, Adam | Work Function Studies of Carbon Nanospikes for Electrochemistry by UPS | Session 182: Surface Chemistry and Photomaterials |
| 2435 | Structural and Electrical Factors of the Photocatalytic Activity of Bi2WO6 and Bi2MoO6 in Water-Splitting Applications | Baksa, Steven; Campbell, Quinn; Dabo, Ismaila | This study offers a molecular interpretation of the competing structural and electrical factors that underlie the facet-dependent photocatalytic activity of layered Bi 2A n-1B nO 3n+3 compounds. | Session 182: Surface Chemistry and Photomaterials |
| 2436 | Density Functional Theory Studies of Protective Interlayer of Graphene for the Back Contact of Copper Zinc Tin Sulphur Thin Film Solar Cell | Chong, Yau Lun Felix; Zhu, Junyi | Here, we propose a new protective material of graphene as an effective diffusion barrier to block any S atom diffusion. | Session 182: Surface Chemistry and Photomaterials |
| 2437 | The Electromagnetic Enhancement of SERS and the Modified Partition of Optical States in the Strong Matter-Coupling Regime. | Jain, Kritika; Venkatapathi, Murugesan | We show that when one includes dynamics in fluctuations of an emitter strongly coupled to absorbing matter, such high gains are predicted due to tunneling out of photons from the strongly absorbing metal surface. | Session 182: Surface Chemistry and Photomaterials |
| 2438 | Protecting high quantum efficiency photocathodes with two dimensional materials for long lifetimes | Wang, Gaoxue; Moody, Nathan; Yang, Ping; Batista, Enrique | A computational study will be presented for screening 2-dimensional coating materials and fundamental principles for the characteristics needed are extracted. | Session 182: Surface Chemistry and Photomaterials |
| 2439 | Defect mediated self-powered, broad band and ultrafast InGaN based photodetector | CHOWDHURY, ARUN; Pant, Rohit; Roul, Basanta; Singh, Deependra; Nanda, Karuna; Krupanidhi, Saluru | In this work, Si doped n+-InGaN epilayer has been grown on a 100 nm thick AlN template on an n-type Si (111) substrate to form semiconductor-insulator-semiconductor (SIS) heterostructure by plasma-assisted molecular beam epitaxy (PAMBE). | Session 182: Surface Chemistry and Photomaterials |
| 2440 | The Effect of Au Nanoparticles on the Photovoltaic Conversion Efficiency in CdTe/CdS Thin Films | Yilmaz, Yunis; Schilling, Noelle; Arsharuni, Stephane; Sahiner, Mehmet | We used PLD (pulsed laser deposition) to create these cells. | Session 182: Surface Chemistry and Photomaterials |
| 2441 | Development of Molybdenum Nitride Thin-Films on Metal Substrates | Sajid, Muhammad; Khaniya, Asim; Kaden, William; Kara, Abdelkader | We are using DFT with added vdW effects, to study adsorption of both phases on metal substrates, having minimal lattice mismatch. | Session 182: Surface Chemistry and Photomaterials |
| 2442 | Spectrally distinctive and highly responsive self-powered MoS2/GaN-nano/Si based photodetector | Singh, Deependra; Pant, Rohit; CHOWDHURY, ARUN; Roul, Basanta; Nanda, Karuna; Krupanidhi, Saluru | In the present work, we have demonstrated MoS 2/GaN nanorods/Si based self-powered and most importantly, spectrally distinctive photodetector. | Session 182: Surface Chemistry and Photomaterials |
| 2443 | High-Throughput Experimental Study of Perovskite Ba(ZrYPr)O3-δ (BZYP) Thin Films as Anode Materials for Proton-Conducting Solid Oxide Electrolysis Cells | Heo, Su Jeong; Papac, Meagan; Zakutayev, Andriy | In this study, novel perovskite Ba(ZrYPr)O 3-δ (BZYP) materials are investigated as the anode for the electrolysis cell to improve its proton-conducting ability. | Session 182: Surface Chemistry and Photomaterials |
| 2444 | Optical properties and carrier transport in graphene-mesoporous silicon nanocomposites | Jubgang Fandio, Défi Junior | In this work, we investigate the optical properties and charge carrier transport of mesoporous silicon nanocomposites coated with few—layer graphene. | Session 182: Surface Chemistry and Photomaterials |
| 2445 | The Role of Metal-Semiconductor Interface in Hybrid Perovskite Devices for High-Performance Solid-State Detectors | Shrestha, Shreetu; Tsai, Hsinhan; Yoho, Michael; Liu, Fangze; Lei, Yusheng; Baldwin, Jon; Tretiak, Sergei; Vo, Ducta; Nie, Wanyi | Here, we use scanning photocurrent microscopy on lateral methylammonium lead triiodide (MAPbI) single crystal devices with commonly used high work function metal and low work function metal contacts to investigate perovskite-metal interfaces. | Session 182: Surface Chemistry and Photomaterials |
| 2446 | p-Diamond as a plasmonic material for high frequency applications | Rudin, Sergey; Rupper, Greg; Ivanov, Tony; Shur, Michael | In the strong signal regime we find that a shock wave develops in the charge density and drift velocity profiles. | Session 182: Surface Chemistry and Photomaterials |
| 2447 | Influence of headgroup and chain length on the surface freezing behavior of long chain amphiphiles | Singla, Saranshu; Stefin, Amanda; Zhu, He; Dhinojwala, Ali | In the present study, we investigate the combined effect of headgroup-substrate interactions and chain length on the observed surface freezing behavior using interface-sensitive sum frequency generation spectroscopy (SFG). | Session 182: Surface Chemistry and Photomaterials |
| 2448 | Molecular beam epitaxial growth of high quality BeMgZnO single crystal films for ultraviolet photodetectors | Fang, Yifei; Su, Longxing; Xu, Min; Hang, Yin | This research gives guidence for application of ZnO in semiconductor optoelectronic devices. | Session 182: Surface Chemistry and Photomaterials |
| 2449 | Phase Diagram of Spin Triplet Superconductor UTe2 Under Pressure and Magnetic Field | Lin, Wen-Chen; Campbell, Daniel; Graf, David; Ran, Sheng; Butch, Nicholas; Paglione, Johnpierre | Here, we report details of the field-temperature-pressure phase diagram of UTe 2 under pressures up to 18.8kbar and high magnetic fields. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2450 | Anomalous heat capacity of spin triplet superconductor UTe2 | Hayes, Ian; Metz, Tristin; Eo, Yun Suk; Ran, Sheng; Butch, Nicholas; Paglione, Johnpierre | Anomalous heat capacity of spin triplet superconductor UTe2 | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2451 | NMR Study of the Spin-triplet Superconductor UTe2 | Ding, Qing-Ping; Ran, Sheng; Butch, Nicholas; Furukawa, Yuji | Here, we report the 125Te nuclear magnetic resonance (NMR) studies of UTe 2 in both the normal and superconducting (SC) states. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2452 | The electronic fluid in cuprate superconductors and NMR | Haase, Juergen | To shed more light on this peculiar behaviour, we discuss data for other nuclei and their relation to the local charge symmetry, which sustains the existence of this unusual spin shift. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2453 | Identify the Chiral Superconductivity in 4Hb-TaS2 through Magnetic-Spectral Responses | Gao, Xuejian; Law, Kam Tuen; Lee, Patrick | Through group theory analysis, we argue that only a chiral and a non-chiral superconducting states are allowed by the crystalline symmetry and strong Ising-type spin-orbital coupling in 4Hb-TaS2, both of which are mixed singlet-triplet states. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2454 | Mixed-parity superconductivity near Lifshitz transitions in strongly spin-orbit-coupled metals | Trott, Matthew; Hooley, Christopher | We consider a strongly spin-orbit-coupled metal, one of whose Fermi surfaces is close to a Lifshitz (topological) transition. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2455 | Superconductivity mediated by ferroelectric fluctuations: anisotropic gap structure and possible application to SrTiO3 | Navarro Gastiasoro, Maria; Victa Trevisan, Thais; Fernandes, Rafael | Motivated by these studies, we study superconductivity mediated by odd-parity ferroelectric modes. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2456 | Enhancement of superconductivity mediated by antiferromagnetic squeezed magnons | Erlandsen, Eirik; Kamra, Akashdeep; Brataas, Arne; Sudbo, Asle | We theoretically investigate magnon-mediated superconductivity in a heterostructure consisting of a normal metal and a two-sublattice antiferromagnetic insulator. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2457 | Nonlinear optical effects in inversion-symmetry-breaking superconductors | Xu, Tianrui; Morimoto, Takahiro; Moore, Joel | We study nonlinear optical responses in superconducting systems with inversion ( I) symmetry-breaking order parameters. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2458 | Energy-scale relationship between magnetic excitations and superconductivity in Hg-family of high-Tc cuprates | Wang, Lichen; He, Guanhong; Yang, Zichen; Garcia-Fernandez, Mirian; Nag, Abhishek; Zhou, Kejin; Minola, Matteo; Le Tacon, Matthieu; Keimer, Bernhard; Peng, Yingying; Li, Yuan | We have used resonant inelastic X-ray scattering and Raman 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 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2459 | Hidden Spin-Momentum Texture in High Tc Cuprate Superconductor | Lin, Chiu-Yun; Gotlieb, Kenneth; Serbyn, Maksym; Zhang, Wentao; Smallwood, Christopher; Jozwiak, Chris; Hussain, Zahid; Vishwanath, Ashvin; Lanzara, Alessandra | Hidden Spin-Momentum Texture in High Tc Cuprate Superconductor | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2460 | NCCO: Examining antiferromagnetic hotspots and spin texture comparison with Bi-based cuprates | Currier, Kayla | Recent work on cuprate Bi2212 has revealed a nontrivial spin texture with a rashba-like spin orbit coupling. | Session 183: Superconductors with Magnetic or Spin-Orbit interactions |
| 2461 | Effect of Scandium Nitride Film Orientation on Growth and Electrical Properties | Reed, Amber; Look, David; Smith, Hadley; Biegler, Zachary; Adams, Rachel; Hill, Madelyn; Back, Tyson; Cetnar, John | In this work, we investigate the effect of ScN orientation on film growth, composition and electrical properties. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2462 | High-Mobility Two-Dimentional Electron Gases at AlxGa1-xN/GaN Heterostructures Grown by Plasma-assisted Molecular Beam Epitaxy | Ren, Yuxing; Cho, Yongjin; Hickman, Austin; Chaudhuri, Reet; Dang, Phillip; Lee, Menyoung; Zhao, Wenwen; Zhang, Zexuan; Xing, Huili; Jena, Debdeep | In this talk, we will present how gate control of the 2DEG density helps us identify the impact of dislocations on the mobility. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2463 | Electrical Properties of Highly Functionalized Ultrathin, 2-Dimensional Hexagonal Boron Nitride | Choi, Daniel; Tsoi, Stanislav; Lock, Evgeniya; Feylgelson, Boris | In this talk, we present electrical and tunneling properties of highly functionalized, ultrathin, 2D h-BN. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2464 | Mobility fluctuation Controlled Linear Positive Magnetoresistance in 2D Semiconductor Bi2O2Se nano-plates | Li, Peng; Zhang, Chenhui; Miao, Guoxing; Zhang, Xixiang | We report the observation of positive and linear magnetoresistance in both Se-poor and Se-rich Bi 2O 2Se nano-plates grown by chemical vapor deposition. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2465 | First-principles study of adatom interactions on the β-Ga2O3(010) surface | Wang, Mengen; Mu, Sai; Van de Walle, Chris | To address this puzzle, we use density functional theory to explore the adsorption and diffusion of Ga and O adatoms on the Ga 2O 3(010) surface. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2466 | Temperature coefficient of resistance (TCR) measurement on vanadium pentoxide (V2O5) nanoparticles | Neupane, Ganga; Hari, Parameswar | In this work, we varied molar concentrations (0.05M, 0.1M, 0.15M, and 0.2M) of vanadium pentoxide (V 2O 5) to synthesize nanoparticles by hydrothermal method. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2467 | Multiscale Modeling for MOCVD Synthesis and Characterization of Transition Metal Dichalcogenides | Nayir, Nadire; Wang, Yuanxi; Xuan, Yuan; Momeni, Kasra; Sengul, Mert; Ji, Yanzhou; Choudhury, Tanushree; Reifsnyder Hickey, Danielle; Alem, Nasim; Redwing, Joan; Crespi, Vincent; Chen, Long Q.; van Duin, Adri | Herein, we develop a multiscale approach as a combination of ReaxFF, continuum fluid dynamics, phase-field (PF) and machine learning (ML) to model the gas-phase kinetic of the MOCVD growth and to connect further the MOCVD control parameters to the morphology, size, and distribution of the synthesized TMD materials. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2468 | DISTORTED PHASE OF SINGLE LAYER JANUS MoSTe | Yagmurcukardes, Mehmet; Sevik, Cem; Peeters, Francois | Therefore, we propose that the Janus MoSTe structure can be fabricated in two dynamically stable phases which possess unique electronic, dynamical, and piezoelectric properties. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2469 | Synthesis and properties of hexagonal GaBN/BN heterostructure and quantum wells. 6.3.6 | Wang, Qingwen; Li, Jing; Lin, Jingyu; Jiang, Hongxing | Here, we report the synthesis of h-GaBN alloys using metal organic vapor deposition (MOCVD) growth. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2470 | Temperature influence in the electrical conductivity of graphite oxide platelets | Sanchez, Diego; Prias, John; Ariza, Hernando | Temperature influence in the electrical conductivity of graphite oxide platelets | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2471 | Thermal Expansion and Residual Strain in AlN Thin Film Sensor Materials | Lad, Robert; Greenslit, Morton; Plouff, David; Pereira da Cunha, Mauricio | In this work, epitaxial AlN (002) films were grown at 930 oC on c-cut sapphire substrates by N 2-plasma-assisted Al evaporation and were characterized up to 1000 oC in air using an X-ray diffraction (XRD) sample hot stage. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2472 | Effects of growth parameters on faceting and defects in confined epitaxial lateral overgrowth | Goswami, Aranya; Šuran Brunelli, Simone Tommaso; Markman, Brian; Pennachio, Dan; Tseng, Hsin-Ying; Choi, Sukgeun; Taylor, Aidan; Klamkin, Jonathan; Rodwell, Mark; Palmstrom, Chris | Here, we use scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron channeling contrast imaging (ECCI) to characterize these nano-structures grown by metal organic chemical vapor deposition (MOCVD) on patterned InP substrates. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2473 | Controlled Fractal Growth of Transition Metal Dichalcogenides | Wang, Peijian; Zeng, Hao; huang, shaoming | We report controlled fractal growth of atomically thin transition metal dichalcogenides (TMDCs) by chemical vapor deposition, with morphological evolution from dendritic to triangular. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2474 | Properties of SPEED Grown FTO Thin Films Deposited at Various Solution Concentrations and Ageing time | Yusuf, Gbadebo | This study has shown that the SPEED technique is a promising technique for depositing high-quality FTO thin films for solar photovoltaic applications. | Session 184: Synthesis and Characterization of Electronic Thin Films |
| 2475 | First principles approaches to excited states chemistry under strong light-matter coupling | Flick, Johannes; Narang, Prineha | In this talk, we use a novel linear-response formulation [3] within a density-functional framework to study excited states of strongly light-matter coupled systems. | Session 185: The Chemical Physics of Molecular Polaritons II. Photophysics |
| 2476 | Communication between polaritonic and excitonic manifolds in an electronically strong coupled system | DelPo, Courtney; Park, Kyu Hyung; Kudisch, Bryan; Fasioli, Francesca; Scholes, Greg | We show that dark states have a lifetime longer than that of uncoupled molecules indicating a significant change in the state character. | Session 185: The Chemical Physics of Molecular Polaritons II. Photophysics |
| 2477 | Mixed Quantum-Classical Methods for Molecules in Cavities | Hoffmann, Norah; Schaefer, Christian; Lacombe, Lionel; Kelly, Aaron; Appel, Heiko; Maitra, Neepa; Rubio, Angel | Within our work we find that classical Wigner dynamics for photons can be used to describe quantum effects such as correlation functions, bound photon states and cavity induced suppression by properly accounting for the quantum statistics of the vacuum field while using classical/semi-classical trajectories to describe the time-evolution. | Session 185: The Chemical Physics of Molecular Polaritons II. Photophysics |
| 2478 | Mixed quantum-classical simulation of molecules in a cavity | Zhou, Wanghuai; Mandal, Arkajit; Huo, Pengfei | In this talk, we will present our recent results on how to generalize the mean-field Ehrenfest dynamics to the molecules in cavity by treating nuclei classically and other degrees of freedom quantum mechanically. | Session 185: The Chemical Physics of Molecular Polaritons II. Photophysics |
| 2479 | Plasmon-Polaron Superconductivity in Strontium Titanate | Edelman, Alexander; Littlewood, Peter | We investigate a scenario of superconductivity mediated by coupling to a strongly anti-adiabatic longitudinal optic phonon by extending a simple Engelsberg-Schrieffer theory of electron-phonon coupling to include the effects of electronic Coulomb interactions. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2480 | Possible strongly correlated superconductivity in a copper-based metal-organic framework | Ishihara, Kota; Takenaka, Takaaki; Hashimoto, Kenichiro; Miao, Yijie; Torizuka, Kiyoshi; Gouchi, Jun; Uwatoko, Yoshiya; Tsurumi, Junto; Watanabe, Shun; Takeya, Jun; Sasaki, Takahiko; Huang, Xing; Xu, Wei; Zhu, Daoben; Su, Na; Cheng, Jinguang; Shibauchi, Takasada | In this study, therefore, we measured the angle-resolved upper critical field, magnetoresistance, electron spin resonance (ESR), and optical conductivity. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2481 | Exploring superconductivity using muon spin resonance in chiral noncentrosymmetric superconductors. | Mayoh, Daniel; Pearce, Matthew; Goetze, Kathrin; Hillier, Adrian; Balakrishnan, Geetha; Lees, Martin | Here we present our investigation into the superconducting order parameter using muon spin resonance techniques in TaRh 2B 2 and NbRh 2B 2 [2, 3]. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2482 | Magnetism and superconductivity in alkali metal doped 2,2′-bipyridine from near room temperature synthesis | Peng, Di; Wang, Renshu; Chen, Xiao-Jia | We successfully detected superconductivity from the observed Meissner effect and zero resistance effect. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2483 | Superconductivity in an organobismuth molecule | Wang, Renshu; Chen, Liucheng; Chen, Xiao-Jia; Yang, Hui; Fu, Mingan; Cheng, Jia; Wu, Xiaolin; gao, yun; Huang, Zhongbing | Here, we report the experimental realization of superconductivity in a critical temperature of 3.6 K in potassium-doped tri- o-tolylbismuthine, with evidence of both the Meissner effect and the zero-resistivity state through dc and ac magnetic susceptibility and resistivity measurements. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2484 | Li2xBC3: a two dimensional MgB2-like superconductor | Quan, Yundi; Pickett, Warren | By carrying out linear response calculations, we find that at half occupation (i. e. x= 0.5), Li 2xBC3 is a phonon mediated superconductor with a T c of around 45 K. Further increasing Li occupation (x) weakens electron-phonon coupling, thus lowering T c. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2485 | Inhomogeneity of superconductivity in a disordered charge density wave material Pd-intercalated ErTe3 measured using scanning SQUID microscopy | Iguchi, Yusuke; Straquadine, Joshua; Kirtley, John; Singh, Anisha; Fisher, Ian; Moler, Kathryn | Here we study the spatial variance of the superfluid response as a function of Pd concentration in Pd xErTe 3 (0<x<0.06) by using a scanning SQUID microscope with sub-micron spatial resolution. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2486 | In-plane anisotropy of the c-axis magnetoresistance for BiCh2-based superconductor | Hoshi, Kazuhisa; Mizuguchi, Yoshikazu; Goto, Yosuke; Matsuda, Tatsuma; Kimata, Motoi | We have investigated the in-plane anisotropy measurement of the c-axis magnetoresistance for BiCh 2-based superconductor LaO 0.5F 0.5BiSSe single crystals. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2487 | Superconductivity at 262 K in Yttrium Superhydride at High Pressures | Snider, Elliot; Dasenbrock-Gammon, Nathan; McBride, Raymond; Dias, Ranga | We report the synthesis and superconductivity in Yttrium superhydride with highest Tc of 262K at 183 GPa. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2488 | Anisotropic energy gap in single crystals of isotropic superconductor SrPt3P | Cho, Kyuil; Teknowijoyo, Serafim; Krenkel, Elizabeth; Tanatar, Makariy; Prozorov, Ruslan; Zhigadlo, Nikolai | Here we report directional measurements of electrical resistivity and London penetration depth in single crystals SrPt 3P. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2489 | New muon spin rotation/relaxation measurements of the non-centrosymmetric superconductor LaNiC2 | Sundar, Shyam; Dunsiger, Sarah; Gheidi, Shayan; Akella, Krishant; Côté, Andre; Sato, Yoshiki; Koizumi, Takatsugu; Settai, Rikio; Hirose, Yusuke; Bonalde, Ismardo; Honda, Fuminori; Sonier, Jeff | Our new μSR investigation of LaNiC 2 provides a fresh perspective on the nature of the superconducting pairing state, by yielding the temperature and magnetic field dependencies of the magnetic penetration depth and vortex core size in the mixed state and through a new test of TRSB. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2490 | Superconductivity in Cu-doped TiSe2: A first-principles calculation | Uzoh, Obinna; Park, Tae-Ho; Choi, Han-Yong | We present the superconducting properties of Cu-doped TiSe 2 materials based on first-principles calculations. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2491 | Strain-stabilized superconductivity in RuO2 | Ruf, Jacob; Paik, Hanjong; Schreiber, Nathaniel; Nair, Hari; Miao, Ludi; Kawasaki, Jason; Nelson, Jocienne; Faeth, Brendan; Lee, Yonghun; Goodge, Berit; Pamuk, Betul; Fennie, Craig; Fitting Kourkoutis, Lena; Schlom, Darrell; Shen, Kyle | We demonstrate that synthesizing RuO 2 thin films on TiO 2(110) substrates stabilizes superconductivity under strain, having T cs up to 2 K; by contrast, RuO 2 thin films grown on TiO 2(101) substrates are non-superconducting down to the lowest measured temperatures ( T c < 0.4 K), consistent with the behavior of bulk RuO 2. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2492 | Physical Properties of New Alkaline Earth Tantalum Sulfides | Benjamin, Shermane; Smith, Michael; Neumeier, John | In this work, single crystals of CaTa5S10, Sr3Ta5S10 and BaTa10S10 samples were synthesized via chemical vapor deposition. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2493 | Coexistence of superconductivity and weak ferromagnetism in Rb-doped triphenylbismuthine and tri-p-tolylbismuthine | Huang, Zhongbing; Wang, Ren-Shu; Cheng, Jia; Fu, Ming-An; Yang, Hui; gao, yun; Chen, Xiao-Jia | By using a two-step method – ultrasound treatment and low temperature annealing, we successfully synthesize Rb-doped triphenylbismuthine and tri- p-tolylbismuthine. | Session 186: Superconductors: Complex Compounds, Borides, Organics, and Others |
| 2494 | Classical diffusion anomalies in two-dimensional Lorentz gases | Heinzel, Thomas; Horn-Cosfeld, Beate; Horbach, Jürgen; Siboni, Nima; Lohmann, Rene; Schluck, Jakob | Classical diffusion anomalies in two-dimensional Lorentz gases | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2495 | Kondo effect in Aharonov-Casher spin field-effect transistor | Parafilo, Anton; Gorelik, Leonid; Kiselev, Mikhail; Park, Hee Chul; Shekhter, Robert | We use non-equilibrium Keldysh Green function technique at weak coupling regime to obtain first two non-vanishing contribution to the charge current. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2496 | Control of Resonant Tunneling transport in III-Nitride Double-Barrier Heterostructures by δ-doping engineering | Encomendero, Jimy; Protasenko, Vladimir; Jena, Debdeep; Xing, Huili | Here, we present a new δ-doped GaN/AlN RTD which enables control over the resonant voltages, making them independent of the built-in fields. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2497 | Wentzel-Kramers-Brillouin (WKB) analysis and resonant electron tunneling in α-T3 lattices | Zhemchuzhna, Liubov; Iurov, Andrii; Gumbs, Godfrey; Huang, Danhong | We have adopted the Wentzel-Kramers-Brillouin (WKB) theory for investigating pseudospin-1 α-T 3 materials for arbitrary hopping parameter 0 < α < 1, including the extreme case when α=1 for the dice lattice. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2498 | Electron tunneling and transport in α-T3 lattices under linearly polarized irradiation | Fekete, Paula; Iurov, Andrii; Gumbs, Godfrey; Huang, Danhong | We have considered electron tunneling through a square electrostatic potential barrier for Floquet states, i.e., pseudospin-1 Dirac electrons coupled to a dressing, off-resonant field which is linearly polarized. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2499 | Incoherent Effects in Hot-Electron Quantum Optics | Barratt, Clarissa; Clark, Lewis; Emary, Clive | In this contribution, we discuss coupling single-electron sources into interferometer geometries, such as the Mach-Zehnder interferometer, where the visibility of the quantum interference acts as a sensitive probe of the properties both of the emitted electrons and their environment. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2500 | Photoconductivity of DNA-Porphyrin Complexes | Van Beveren, Daniel; Myint, Peco; Logothetis, Stefanos; Qi, Zhenqing; Naylor, Carl; Zhao, Mengqiang; Zhang, Qicheng; Johnson, Alan; Smith, Walter | We attempt to address these issues by modifying DNA with meso-tetrakis(N-methyl-4-pyridiniumyl)porphyrin (TMPyP) intercalated between the base pairs. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2501 | Thermal conductivity of thermally annealed nanocrystalline silicon film grown by PECVD technique | Jugdersuren, Battogtokh; Liu, Xiao; Kearney, Brian; Culbertson, James; Chervin, Christopher; Stroud, Rhonda | We investigate the effect of postdeposition thermal annealing on the thermal conductivity of nc-Si films prepared by plasma-enhanced chemical vapor deposition (PECVD) . | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2502 | Strain Controlled Modulations and Anomalies in the Thermopower of Si/Ge Superlattices: A First-Principles Study | Settipalli, Manoj; Neogi, Sanghamitra | We use the density functional theory (DFT) and the effective mass approximation, independently, in combination with the Boltzmann transport equation framework, to establish the results. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2503 | Prediction of large Seebeck coefficient in ferroelectric domain walls of GeTe | Dangic, Dorde; Murray, Eamonn; Fahy, Stephen; Savic, Ivana | In this work, we present a first principles study indicating that ferroelectric domain walls in GeTe have a considerably larger Seebeck coefficient than bulk GeTe. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2504 | Visualizing Electronic Inhomogeneity in CsPbBr3 Perovskite Nanorods | Li, Yize; Liang, Shuang; Trieu, Tuong; Stabile, Tyler; Lin, Zhiqun | We use contactless dielectric force microscopy (DFM), a novel scanning probe microscopy (SPM)-based imaging technique, to probe local electronic inhomogeneity in CsPbBr 3 nanorods (NRs). | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2505 | Kondo-free quantum mirage: mechanism and manipulation | Li, Qili; Li, Xiaoxia; Miao, Bingfeng; Sun, Liang; Chen, Gong; han, Ping; Ding, Haifeng | Here we demonstrate a Kondo-free quantum mirage, which can operate in a wide energy range beyond Fermi energy. | Session 187: Superlattices and Nanostructures: Transport and Electronic Phenomena |
| 2506 | Growth of Conformal Thin Film Si Coatings on Terraced Substrates Using Subsequent Oblique Incidence Xe+ Ion Bombardment | Randel, Emmett; Menoni, Carmen; Bradley, Richard | This work was performed in tandem with theory in an effort to refine models, showing agreement in selection of terraced slopes and the development of transverse roughness along the facets. | Session 188: Thin Film Coatings and Applications |
| 2507 | Amorphous oxides to improve the coatings of future gravitational wave detectors | Vajente, Gabriele; Fazio, Mariana; Yang, Le; Ananyeva, Alena; Billingsley, GariLynn; Markosyan, Ashot; Bassiri, Riccardo; Fejer, Martin; Menoni, Carmen | We characterized the optical and elastic properties of several oxides: yttria, hafnia, niobia, alumina, zirconia, zinc oxide, germania and doped germania. | Session 188: Thin Film Coatings and Applications |
| 2508 | Wide survey of Ta2O5-based mixed oxide coatings for gravitational wave detectors | Fazio, Mariana; Yang, Le; Vajente, Gabriele; Ananyeva, Alena; Billingsley, GariLynn; Markosyan, Ashot; Bassiri, Riccardo; Fejer, Martin; Menoni, Carmen | We found that oxides with the lowest Gibbs free energy of formation, such as Sc 2O 3, inhibit the complete oxidation of the Ta 2O 5 phase. | Session 188: Thin Film Coatings and Applications |
| 2509 | Dielectrowetting of nematic liquid crystal films | Mema, Ensela; Cummings, Linda; Kondic, Lou | We consider a mathematical model that describes the flow of a Nematic Liquid Crystal (NLC) film placed on a surface that contains interlaced electrodes (which generate an electric field that varies in the plane of the substrate). | Session 188: Thin Film Coatings and Applications |
| 2510 | Sound velocity study in multilayer ultrathin films using wavelet transform | Yousefi Sarraf, Saeed; Trappen, Robbyn; Mottaghi, Navid; Bristow, Alan; Holcomb, Mikel | Sound velocity study in multilayer ultrathin films using wavelet transform | Session 188: Thin Film Coatings and Applications |
| 2511 | Mixture and nanolaminate – a pathway to understand coating mechanical loss | Yang, Le; Fazio, Mariana; Vajente, Gabriele; Ananyeva, Alena; Billingsley, GariLynn; Markosyan, Ashot; Bassiri, Riccardo; Fejer, Martin; Menoni, Carmen | In this work, reactive biased target ion beam deposition was used to grow mixture and nanolaminate coatings of SiO2-Ta2O5 and TiO2-Ta2O5. | Session 188: Thin Film Coatings and Applications |
| 2512 | Monitoring structural changes in steel thin films in electrolyte in situ by X-ray standing waves | Garai, Debi; Carlomagno, Ilaria; Wilson, Axel; Meneghini, Carlo; Solokha, Vladyslav; Morawe, Christian; Gupta, Ajay; Zegenhagen, Jorg | The X-ray standing wave (XSW) technique revealed the metal distribution with depth. | Session 188: Thin Film Coatings and Applications |
| 2513 | Deformation profile and interface-mediated defect interaction in Cu/CuZr nanolaminates: An effective-temperature description | Tong, Michael; Lieou, Charles; Beyerlein, Irene | We use the effective-temperature theories of dislocation and amorphous shear-transformation-zone (STZ) plasticity to study amorphous-crystalline interface (ACI)-mediated plasticity in Cu/CuZr nanolaminates under mechanical straining. | Session 188: Thin Film Coatings and Applications |
| 2514 | The Search for an Amorphous Coating with Low Mechanical Loss and High Refractive Index | Prasai, Kiran; Penano, Sagada; Jiang, Jun; Mishkin, Alec; Cheng, Hai-ping; Bassiri, Riccardo; Fejer, Martin | In this talk, I will describe the research efforts aimed at finding such a coating. | Session 188: Thin Film Coatings and Applications |
| 2515 | Addressing the Achilles’ Heels of Amorphous Carbon Overcoats with Doping: Mechanisms of Thermal and Oxidative Degradation | Mangolini, Filippo; Krick, Brandon; Jacobs, Tevis; Khanal, Subarna; Streller, Frank; McClimon, J.; Hilbert, James; Prasad, Somuri; Scharf, Thomas; Ohlhausen, James; Lukes, Jennifer; Sawyer, W.; Carpick, Robert | Here, we performed X-ray photoelectron/absorption spectroscopy experiments and molecular dynamics simulations to show how the introduction of silicon and oxygen in a-C:H enhances: 1) the stability at elevated temperatures in both vacuum and oxidizing environments; and 2) the resistance to degradation upon exposure to the harsh conditions of low Earth orbit (LEO) aboard the International Space Station. | Session 188: Thin Film Coatings and Applications |
| 2516 | capillarity-enhanced thin-film mineral coating in 3D-printed porous micromodel | Li, Hongxia; Raza, Aikifa; Zhang, TieJun | Here, we propose a surface-coating approach by seeding calcite nanoparticles (CalNPs) followed by in-situ growth of calcite crystals along the inner surfaces of as-printed 3D micromodels. | Session 188: Thin Film Coatings and Applications |
| 2517 | Effects of substrate bias on current for varying argon intensity in a low-pressure hydrogen/argon plasma in chemical vapor deposition. | Ramkorun, Bhavesh; Chakrabarty, Kallol; Harris, Sumner; Catledge, Shane | Studies have shown that in CVD, low substrate temperature often favors amorphous materials growth over crystalline. | Session 188: Thin Film Coatings and Applications |
| 2518 | Measuring Local Electric Fields and Local Charge Densities at Electrode Surfaces using Graphene-enhanced Raman Spectroscopy (GERS)-based Stark-shifts | Shi, Haotian; Zhao, Bofan; Cronin, Steve | We report spectroscopic measurements of the local electric fields and charge densities at electrode surfaces using graphene-enhanced Raman spectroscopy (GERS) based on the Stark-shifts of surface-bound molecules (CuPc) and the G band frequency shift in graphene. | Session 188: Thin Film Coatings and Applications |
| 2519 | Ferroelectric polarization rotation through He irradiation induced uniaxial strain | Herklotz, Andreas; Roth, Robert; Dorr, Kathrin; Ramakrishnegowda, Niranjan; Sharma, Yogesh; Mazza, Alessandro; Ward, Thomas | We show that this kind of uniaxial strain engineering effectively leads to polarization rotation from in-plane towards out-of-plane as the uniaxial strain is increasing. | Session 188: Thin Film Coatings and Applications |
| 2520 | Self-duality of the integer quantum Hall to insulator transition: a composite fermion description | Kumar, Prashant; Huang, Kevin; Kim, Yong-Baek; Raghu, Srinivas | As we describe, the transition also marks a IQHIT of CFs: this suggests that the transition may exhibit self-duality. | Session 189: Topological Phase Transitions |
| 2521 | Superuniversality of topological quantum phase transitions | Tyner, Alexander; Goswami, Pallab | We will show that irrespective of underlying symmetry classes, the universal behaviors of several topological phase transitions at different spatial dimensions are controlled by massless Dirac fermion fixed points. | Session 189: Topological Phase Transitions |
| 2522 | Identification of Topological Phase Transitions in Kitaev Quantum Spin Liquids | Go, Ara; Hwang, Kyusung; Kim, Beom Hyun; Seong, Ji Heon; Moon, Eun-Gook | We investigate physical quantities of a spin model and argue that magnetic field angle dependence and resonant inelastic X-ray scattering may probe topological phase transitions in Kitaev quantum spin liquids (KQSLs). | Session 189: Topological Phase Transitions |
| 2523 | Probing Topological Phase Transition Using Rotational Second-Harmonic Generation in (Bi1-xSbx)2Se3 | Zhao, Kun; Huang, Silu; Kim, Jisun; Curtis, Matthew; Taylor, Joel; Haber, Louis; Jin, Rongying; Plummer, E | In this talk, we symmetrically characterize the surface electronic symmetry and the topological phase transition using high-quality (Bi 1-xSb x) 2Se 3 single crystals. | Session 189: Topological Phase Transitions |
| 2524 | Topological Phase Transitions in a Hybridized Three-Dimensional Topological Insulator | Chong, Su Kong; Liu, Lizhe; Liu, Feng; Sparks, Taylor D.; Deshpande, Vikram V. | By experimentally probing the hybridization gap as a function of TI thickness using three different methods, namely thermal activation, differential conductance, and quantum capacitance, we map the crossover from 3D TI to 2D insulating state. | Session 189: Topological Phase Transitions |
| 2525 | Quasi-periodic dynamical 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 quasi-periodic, rather than periodic, dynamical phase transitions. | Session 189: Topological Phase Transitions |
| 2526 | Topological multicriticality of spin-orbit coupled electrons in one dimension | Malard, Mariana; Brandao, David; de Brito, Paulo; Johannesson, Henrik | We propose a simple picture for how multicriticality gives rise to this unexpected phenomenon. | Session 189: Topological Phase Transitions |
| 2527 | Construction of second-order topological phases protected by chiral symmetry | Okugawa, Ryo; Hayashi, Shin; Nakanishi, Takeshi | By the theory of the topological phase transitions, we propose second-order topological semimetallic and insulating phases with flat hinge bands in chiral-symmetric three-dimensional systems. | Session 189: Topological Phase Transitions |
| 2528 | Piezoelectricity and Topological Quantum Phase Transitions in Two-Dimensional Spin-Orbit Coupled Crystals with Time-Reversal Symmetry | Yu, Jiabin; Liu, Chao-Xing | In this work, we demonstrate that the piezoelectric response can also change discontinuously across a topological quantum phase transition in two-dimensional time-reversal invariant systems with spin-orbit coupling. | Session 189: Topological Phase Transitions |
| 2529 | Vortex and Surface Phase Transitions in Superconducting Higher-order Topological Insulators | Ghorashi, Sayed Ali Akbar; Hughes, Taylor; Rossi, Enrico | In this work, we show that the phenomenology in higher-order topological insulators (HOTIs) can be qualitatively distinct. | Session 189: Topological Phase Transitions |
| 2530 | Topological invariants and edge modes at quantum criticality | Verresen, Ruben; Thorngren, Ryan; Jones, Nick; Pollmann, Frank; Vishwanath, Ashvin | In this talk, I will show that this common wisdom is not justified: topological invariants and edge modes can survive at phase transitions. | Session 189: Topological Phase Transitions |
| 2531 | Landau-forbidden quantum phase transitions between bosonic Z2 symmetry-protected topological phases in 2+1D | Dupont, Maxime; Gazit, Snir; Scaffidi, Thomas | We perform a Quantum Monte Carlo study of quantum phase transitions between different classes of Z2 bosonic symmetry-protected topological (SPT) phases in 2+1D. | Session 189: Topological Phase Transitions |
| 2532 | Optical Evidence of an Enhanced Electronic Effective Mass in the Anomalous Pb1-xTlxTe Superconductor | Degiorgi, Leonardo; Chinotti, Manuel; Pal, Anirban | Here, we provide a thorough optical investigation of Pb 1-xTl xTe over a very broad spectral range and contrast its normal-state, complete excitation spectrum with the optical response of the non-superconducting analog Na-doped PbTe [1]. | Session 190: Topology and Correlations |
| 2533 | Weyl-Kondo semimetal: controlling the nodes via magnetic field | Grefe, Sarah; Lai, Hsin-Hua; Buehler-Paschen, Silke; Si, Qimiao | In the effort to study topological metals in strongly-correlated settings, a Weyl-Kondo semimetal (WKSM) has been concurrently discovered in theoretical 1 and experimental 2,3 studies. | Session 190: Topology and Correlations |
| 2534 | Quasiparticles as Detector of Topological Quantum Phase Transitions | Manna, Sourav; Srivatsa, Nagara Srinivasa Prasanna; Wildeboer, Julia; Nielsen, Anne E. B. | Here, we propose to use the study of quasiparticle properties to detect phase transitions. | Session 190: Topology and Correlations |
| 2535 | Higher-form symmetry perspective on fracton phases | Qi, Marvin; Radzihovsky, Leo; Hermele, Michael | We introduce the notion of a non-faithful higher form symmetry and describe how fractons can arise via condensation of objects charged under such a symmetry. | Session 190: Topology and Correlations |
| 2536 | Local and Non-local correlation effects in topological quantum phase transitions | Crippa, Lorenzo; Amaricci, Adriano; Sangiovanni, Giorgio; Capone, Massimo | We study the effects of electronic interactions at the local and non-local level in a paradigmatic model for topological insulator in two dimensions. | Session 190: Topology and Correlations |
| 2537 | Anomalous localization at the boundary of an interacting topological insulator | Kimchi, Itamar; Chou, Yang-Zhi; Nandkishore, Rahul; Radzihovsky, Leo | Here we present our results on this combination, for the edge of a 2D TI and the surface of a 3D weak TI, showing how it can lead to an "Anomalous Many Body Localized" (AMBL) phase that preserves the anomaly. | Session 190: Topology and Correlations |
| 2538 | Interaction effects on centrosymmetric Bogoliubov Fermi surfaces | Oh, Hanbit; Moon, Eun-Gook | We consider interaction effects of the Bogoliubov Fermi surfaces by using standard renormalization group and mean-field theory and discuss the implication of inversion symmetry breaking. | Session 190: Topology and Correlations |
| 2539 | Twisted dualities and the 2d Majorana checkerboard | Bintz, Marcus | This talk leverages recently formulated exact dualities to derive novel representations of such a 2d Majorana checkerboard. | Session 190: Topology and Correlations |
| 2540 | Universal SPT invariants using swap operators | Pai, Shriya; Hermele, Michael | We will describe many-body topological invariants/order parameters for SPT phases that involve acting with symmetry operators and a swap operator. | Session 190: Topology and Correlations |
| 2541 | Exceptional-torus in strongly correlated nodal-line semimetals with many-body chiral symmetry | Kimura, Kazuhiro; Yoshida, Tsuneya; Kawakami, Norio | In this study, we demonstrate how the SPETs can emerge in strongly correlated systems. | Session 190: Topology and Correlations |
| 2542 | Realizing the Majorana Quasiparticle fermionic dynamics in \emph{(1+1)} dimensional Topological Quantum Materials | Behera, Sushant Kumar; Deb, Pritam | It is interesting to study the dynamics of Majorana fermions in presence of external perturbations in \emph{(1+1)} dimensions, a scalar potential by approaching for the first time implementing the methods of supersymmetric quantum mechanics [\emph{Phys. | Session 190: Topology and Correlations |
| 2543 | 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 190: Topology and Correlations |
| 2544 | Interactions in nodal-line semimetals with quadratic band touching | Jose, Geo; Uchoa, Bruno | We address the problem of Coloumb interactions in 3D nodal-line semimetals with quadratic band touching using perturbative Wilsonian renormalization group approach. | Session 190: Topology and Correlations |
| 2545 | Statistical localization: from strong fragmentation to strong edge modes | Rakovszky, Tibor; Sala de Torres-Solanot, Pablo; Verresen, Ruben; Knap, Michael; Pollmann, Frank | We show how to characterize such systems by introducing the notion of ‘statistically localized integrals of motion’ (SLIOM), whose eigenvalues label the connected components of the Hilbert space. | Session 190: Topology and Correlations |
| 2546 | Classification of topological phases in one dimensional non-hermitian systems | Xi, Wenjie; Zhang, Zhihao; Gu, Zhengcheng; Chen, Weiqiang | In this paper, we attempt to classify topological phases in 1D non-Hermitian systems. | Session 190: Topology and Correlations |
| 2547 | Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator | Liu, Chang; Wang, Yongchao; Li, Hao; Wu, Yang; Li, Yaoxin; Li, Jiaheng; He, Ke; Xu, Yong; Zhang, Jinsong; Wang, Yayu | Here, we investigate the quantum transport behaviors of exfoliated MnBi 2Te 4, an antiferromagnetic topological insulator that hosts all three properties simultaneously. | Session 191: Topological Devices and Nanostructures |
| 2548 | 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 191: Topological Devices and Nanostructures |
| 2549 | Controlling Strain Gradients in Weyl Semimetals | Putzke, Carsten; Diaz-Gomez, Jonas; Ilan, Roni; Pikulin, Dmitry; Grushin, Adolfo; Nair, Nityan; Shekhar, Chandra; Borrmann, Horst; Felser, Claudia; Analytis, James; Moll, Philip | We will show how the new concept of pseudo-magnetic fields is applied to Cd 3As 2. | Session 191: Topological Devices and Nanostructures |
| 2550 | Spinful quantum dot coupled to the edge states of a topological insulator | Pasnoori, Parameshwar; Andrei, Natan; Rylands, Colin | We solve the model exactly using Bethe Ansatz and study the ground state properties of the system including the occupation number of the impurity and its density of states. | Session 191: Topological Devices and Nanostructures |
| 2551 | Current-driven dynamics of spin textures on a surface of topological insulators | Kurebayashi, Daichi; Nagaosa, Naoto | In this talk, we present analytical expressions of the spin-transfer torques on a surface of the magnetic topological insulator by including the higher-order contributions of momentum, k2-term and the hexagonal warping. | Session 191: Topological Devices and Nanostructures |
| 2552 | Nontrivial topology in ultrathin bismuth nanowires: An electronic transport study. | Huber, Tito; Nikolaeva, Albina; Konopko, Leonid | We will discuss our interpretation of the observations in terms of inter-Bi bilayer coupling and hinge states. | Session 191: Topological Devices and Nanostructures |
| 2553 | Non-local Fermi level tuning of topological insultor Bi2-xSbxSe3 nanoplate devices | Hou, Yasen; Xiao, Rui; McClintock, Luke; Travaglini, Henry; Yu, Dong | Here we report non-local Fermi level tuning in Bi 2-xSb xSe 3 nanoplate devices. | Session 191: Topological Devices and Nanostructures |
| 2554 | Quantum spin Hall quantum point contacts | Fleckenstein, Christoph | Quantum spin Hall quantum point contacts | Session 191: Topological Devices and Nanostructures |
| 2555 | Giant and gate-tunable spin-galvanic effect in graphene-topological insulator van der Waals heterostructures at room temperature | Khokhriakov, Dmitrii; Hoque, Md Anamul; Karpiak, Bogdan; Dash, Saroj | We address these challenges by integrating graphene [1] with a 3D topological insulator (TI) in a van der Waals heterostructure [2] to take advantage of their remarkable spintronic properties and engineer strong proximity-induced spin-charge conversion phenomena. | Session 191: Topological Devices and Nanostructures |
| 2556 | Topological Sliding Moiré Heterostructure | Lin, Shizeng; Su, Ying | We investigate the effect of sliding motion of layers in Moiré heterostructures on the electronic state. | Session 191: Topological Devices and Nanostructures |
| 2557 | Evidence of topological gap opening in the surface state of Bi2Se3 by proximity to a magnetic insulator | Sasmal, Satyaki; S, Mathimalar; P, Rajasekhar; Bhardwaj, Archit; Chaudhary, Saurabh; Satpati, Biswarup; Raman, Karthik | By using bottom gate voltage and external magnetic field studies, we report evidence of a metal-to-insulator transition at Bi 2Se 3/EuS interface, attributed to the opening of EG, with the signature of half-integer quantum Hall effect when Fermi level is tuned into the EG [4]. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2558 | Evidence for a conducting surface state in FeSi | Deng, Yuhang; Fang, Yuankan; Ran, Sheng; Xie, Weiwei; Wang, Shen; Meng, Shirley; Wolowiec, Christian; Schuller, Ivan; Lou, Hongbo; Li, Shubin; Zeng, Qiaoshi; Singleton, John; Breindel, Alexander; Maple, M Brian | Evidence for a conducting surface state in FeSi | Session 192: Transport and thermodynamic properties of topological systems: |
| 2559 | Magnetotransport and weak anti-localization signatures in band-engineered 3D topological insulator pn-heterostructures | Mayer, Thomas; Werner, Hedwig; Schmid, Florian; Ziegler, Johannes; Richter, Elisabeth; Fischer, Ralf; Diaz-Pardo, Rebeca; Fujii, Jun; Vobornik, Ivana; Weiss, Dieter; Back, Christian; Kronseder, Matthias; Bougeard, Dominique | In this contribution, we combine band structure engineering in Bi-based heterostructures with alloy composition-tuning to provide experimental access to single TSS. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2560 | Weak Antilocalization and Anisotropic Magnetoresistance in Topological Bi2TexSe3-x Thin Films | Stephen, Gregory; Vail, Owen; Lu, Jiwei; Taylor, Patrick; Friedman, Adam | In this study, we investigate the evolution of the magnetoresistance of Bi 2Se 3-xTe x for varying chalcogen ratios as a function of both temperature and angle of applied field. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2561 | Quantum Oscillations in Topological Insulator β-Ag2Te with High Mobility | Leng, Pengliang; Xie, Xiaoyi; Xiu, Faxian | In this study, we claim a developed growth scheme to synthesize single crystalline (β-Ag 2Te) nanoplates with tunable Fermi levels by chemical vapor deposition(CVD). | Session 192: Transport and thermodynamic properties of topological systems: |
| 2562 | Anomalous quantum oscillations in topological insulators | Ghazaryan, Areg; Nica, Emilian; Erten, Onur; Ghaemi, Pouyan | We analyze such quantum oscillations when the chemical potential lies close to the edge of either bulk conduction or valence bands. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2563 | Detection of hole pockets in type-II Weyl semimetal MoTe2 from Shubnikov-de Haas quantum oscillations | Hu, Yajian; Yu, Wing; Lai, Kwing; Sun, Dan; Balakirev, Fedor; Yip, King; Zhang, Wei; Paredes Aulestia, Esteban; Jha, Rajveer; Higashinaka, Ryuji; Matsuda, Tatsuma; Yanase, Youichi; Aoki, Yuji; Goh, Swee | In this presentation, we report an unambiguous detection of these elusive hole pockets via Shubnikov-de Haas (SdH) quantum oscillations. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2564 | Magnetothermoelectricity of topological semiconductor ZrTe5 | Zhu, Junbo; Lee, Changmin; Suzuki, Takehito; Fang, Shiang; Gedik, Nuh; Checkelsky, Joseph | We report a comprehensive study of electric, thermoelectric, thermodynamic measurements and angle resolved photoemission spectroscopy (ARPES) of the topological insulator candidate ZrTe 5. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2565 | Resonant and Magnetic Doping in Topological Insulator Bi2Se3 | Wooten, Brandi; Taylor, Patrick; Heremans, Joseph P | 1 We exploit resonant doping to reduce the bulk carrier concentration to meet the Mott criterion for the metal-insulator transition: the number of electrons due to unintentional doping, nD, must be less than the critical carrier concentration, nc; . | Session 192: Transport and thermodynamic properties of topological systems: |
| 2566 | Identification of massive and topological surface states in the 3D topological insulator tensile strained HgTe | Müller, Valentin; Mahler, David; Lunczer, Lukas; Wiedenmann, Jonas; Beugeling, Wouter; Buhmann, Hartmut; Molenkamp, Laurens | Here we present the unambiguous identification and manipulation of the different surface states, namely the TSS and the massive VPS, in the topological insulator HgTe by means of magnetotransport using top- and backgated devices as well as modulation doping. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2567 | Transport evidence of Dirac dispersion in PbBi2Te4 3D topological insulator | MAL, PRIYANATH; BERA, GANESH; DAS, BIPUL; Lakhani, Archana; Turpu, G.; Tomy, C.; DAS, PRADIP | Combined SdH oscillations and Hall effect studies reveal the shifting of the Fermi level of PbBi 2Te 4 towards the Dirac point with successive Fe doping. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2568 | Theory of drude-like nonlinear thermoelectric responses in quantum many-body systems | Yang, Xu; Ran, Ying | We theoretically investigate Drude-like physics in general second-order nonlinear thermoelectric responses in time-reversal invariant noncentrosymmetric quantum many-body systems. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2569 | Universal transport signatures of the topological phase transition in Majorana wires | Chew, Aaron; He, Wenyu; Alicea, Jason | We introduce a bosonized framework for this fixed point and extract universal conductance signatures of the topological phase transition. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2570 | Anomalous magnetotransport at a two-dimensional correlated electron system | Lesne, Edouard; Saglam, Yildiz; van Thiel, Thierry; Bruneel, Pierre; Monteiro, Ana; Steele, Gary; Gabay, Marc; Caviglia, Andrea | In this work, we report on the magnetotronsport properties of the 2DES in both in-plane and out-of-plane magnetic field. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2571 | Resistively detected nuclear magnetic resonance in topological insulators | Zhuang, Zekun; Mitrovic, Vesna; Marston, John | We will present our proposal to use resistively detected nuclear magnetic resonance (RDNMR) to characterize Dirac fermions at the edge or surface of the TI. | Session 192: Transport and thermodynamic properties of topological systems: |
| 2572 | Precursors to Exciton Condensation in Quantum Hall Bilayers | Eisenstein, James; Pfeiffer, Loren; West, Kenneth | In this talk I will report on recent experiments which shed new light on the transition. | Session 193: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2573 | Parton theory of the fractional quantum Hall effect: New developments | Jain, Jainendra | Theory suggests that a non-Abelian "221" state may appear at ν=1/2 in bilayer and trilayer graphene [6]. | Session 193: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2574 | Duality in Quantum Hall Compressible States | Fradkin, Eduardo | Duality in Quantum Hall Compressible States | Session 193: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2575 | New unconventional plasmons in the N=1 Landau level | Du, Lingjie | New unconventional plasmons in the N=1 Landau level | Session 193: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2576 | Composite Fermions near Half-filled Landau Levels: Precise Experimental Tests of Luttinger Theorem, Particle-Hole Symmetry, and Fermi Sea Anisotropy | Shayegan, Mansour | In this talk, I will present our experimental results aimed at probing this Fermi sea directly and quantitatively. | Session 193: Unconventional States and Excitations in the Fractional Quantum Hall Effect |
| 2577 | The Superconducting Phase Diagram of the Infinite-Layer Nickelates | Li, Danfeng; Wang, Bai Yang; Lee, Kyuho; Osada, Motoki; Goodge, Berit; Fitting Kourkoutis, Lena; Hwang, Harold | Here, we present a first study of such doping dependence of transition temperatures, lattice spacings as well as transport properties, to which controlling the crystallinity and nickel oxidation state across different dopings by our approaches to materials synthesis appears to be essential. | Session 194: Superconductivity: Nickelates |
| 2578 | Efforts to Synthesize Bulk Superconducting Infinite-Layer Nickelates: R3Ni3O7 and Other Phases Prepared by Hydrogen Reduction of RNiO3* | Ponti, Gregorio; Timmers, Quinn D. B.; Kuklinski, Zachary; Markert, John | We reduced these phases in several ways in an effort to produce bulk infinite-layer materials. | Session 194: Superconductivity: Nickelates |
| 2579 | Optimizing Synthesis of Superconducting Infinite-Layer Nickelates | Lee, Kyuho; Li, Danfeng; Osada, Motoki; Wang, Bai Yang; Goodge, Berit; Fitting Kourkoutis, Lena; Hwang, Harold | 2 After careful optimization, we have successfully established a reproducible method to stabilize Nd 0.8Sr 0.2NiO 2 (001) epitaxial thin films on SrTiO 3 (001) substrate by pulsed-laser deposition and CaH 2-assisted topochemical reduction. | Session 194: Superconductivity: Nickelates |
| 2580 | A superconducting praseodymium nickel oxide with infinite-layer structure | Osada, Motoki; Wang, Bai Yang; Li, Danfeng; Lee, Kyuho; Goodge, Berit; Fitting Kourkoutis, Lena; Hwang, Harold | 2 Here, we present the synthesis of an infinite-layer praseodymium nickel oxide by topochemical reduction of the precursor perovskite thin films using calcium hydride as reagent. | Session 194: Superconductivity: Nickelates |
| 2581 | 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 the high spatial and energy resolution achieved with scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS) to explore both the lattice and electronic structure of these superconducting thin films. | Session 194: Superconductivity: Nickelates |
| 2582 | In Situ Synchrotron X-ray Studies of Nickelate Growth and Reduction | LI, YAN; YAN, XI; Zhang, Zhan; Wang, Hua; Zhou, Hua; Fong, Dillon | Here we present the results of in situ synchrotron X-ray studies on the growth of nickelate heterostructures by pulsed laser deposition (PLD). | Session 194: Superconductivity: Nickelates |
| 2583 | Transport Characterization of Infinite Layer Nickelate Superconductor | Wang, Bai Yang; Li, Danfeng; Lee, Kyuho; Goodge, Berit; Osada, Motoki; Fitting Kourkoutis, Lena; Hwang, Harold | As a step in this direction, we investigate and report the magnetotransport properties of nickelates in both the normal and superconducting state. | Session 194: Superconductivity: Nickelates |
| 2584 | Electronic structure of the parent compound of superconducting infinite-layer nickelates | Hepting, Matthias; Li, Danfeng; Jia, Chunjing; Lu, Haiyu; Pairs, E.; Tseng, Yi; Feng, X.; Osada, Motoki; Been, Emily; Hikita, Yasuyuki; Chuang, Y.; Hussain, Zahid; Zhou, Kejin; Nag, A.; Garcia-Fernandez, Mirian; Rossi, Matteo; Huang, Hsiao-Yu; Huang, Di-Jing; Shen, Zhixun; Schmitt, Thorsten; Hwang, Harold; Moritz, B.; Zaanen, Jan; Devereaux, Thomas; Lee, Wei-Sheng | In this presentation, we will present data of soft x-ray spectroscopy (XAS and RIXS) near the Ni L-edge and O K-edge on parent compound RNiO 2 ( R = La, Nd). | Session 194: Superconductivity: Nickelates |
| 2585 | Doping evolution of the electronic structure of Sr-doped NdNiO2 | Rossi, Matteo; Lu, Haiyu; Li, Danfeng; Jia, Chunjing; Been, Emily; Chuang, Y.; Zhou, Kejin; Shen, Zhixun; Moritz, Brian; Devereaux, Thomas; Hwang, Harold; Lee, Wei-Sheng | Since the discovery of high-temperature superconductivity in cuprates, many efforts have been devoted to reproduce their electronic structure by proper material engineering. | Session 194: Superconductivity: Nickelates |
| 2586 | Exotic electronic structure in cuprate-like trilayer nickelate Pr4Ni3O8 | Li, Haoxiang; HAO, PEIPEI; Gordon, Kyle; Zheng, Hong; Zhang, Junjie; Zhou, Xiaoqing; Mitchell, John; Dessau, Daniel | Here we present a more direct and detailed study of the electronic structure of Pr438, with a combination of the Angle-resolved photoemission spectroscopy and Density-functional-theory calculations. | Session 194: Superconductivity: Nickelates |
| 2587 | Electronic Correlations in Nickelate Analogues of Cuprate Superconductors | Karp, Jonathan; Zingl, Manuel; Botana, Antia; Norman, Michael; Millis, Andrew | Motivated by recent experiments on tri-layer (Pr4Ni3O8) and infinite layer (NdNiO2) analogues of cuprate superconductors, we use a combination of density functional and dynamical mean field (DFT+DMFT) methods to perform a comparative study of the metal-insulator and magnetic phase diagrams, many body electronic structure, and conduction band many-body mass enhancements of cuprate and nickelate materials. | Session 194: Superconductivity: Nickelates |
| 2588 | Electronic Structure across the Rare-Earth Series in Superconducting Infinite Layer Nickelates | Been, Emily; Lee, Wei-Sheng; Hwang, Harold; Zaanen, Jan; Devereaux, Thomas; Moritz, Brian; Jia, Chunjing | Electronic Structure across the Rare-Earth Series in Superconducting Infinite Layer Nickelates | Session 194: Superconductivity: Nickelates |
| 2589 | Hybridization and correlation effects in the electronic structure of infinite-layer nickelates | Gu, Yuhao; Zhu, Sichen; wang, xiaoxuan; Hu, Jiangping; Chen, Hanghui | We combine density functional theory and dynamical mean field theory to study the electronic structure of infinite-layer nickelate NdNiO 2. | Session 194: Superconductivity: Nickelates |
| 2590 | Role of 4f states in superconducting nickelate | Lee, Kwan-Woo; Choi, Mi-Young; Pickett, Warren | In this presentation, we will focus on a primary distinction between NdNiO 2 and LaNiO 2. | Session 194: Superconductivity: Nickelates |
| 2591 | Doping-induced magnetic two-dimensionality and many-body electronic structure of superconducting infinite-layer nickelate | Ryee, Siheon; Yoon, Hongkee; Kim, Taekjung; Jeong, Min Yong; Han, Myung Joon | Doping-induced magnetic two-dimensionality and many-body electronic structure of superconducting infinite-layer nickelate | Session 194: Superconductivity: Nickelates |
| 2592 | Manipulating nonadiabatic conical intersection dynamics by optical cavities | Mukamel, Shaul; Gu, Bing | We demonstrate how molecular photochemical processes can be manipulated by strong light-matter coupling. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2593 | Effect of Stokes shift on molecular polariton dynamics | Toppari, Jussi; Groenhof, Gerrit; Heikkilä, Tero | We have studied molecular polaritons involving SPPs or optical cavities and different molecules. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2594 | hoton emission properties of polariton states of rhodamine dyes in 2D plasmonic cavity | Roslyak, Oleksiy; Bittner, Eric; Piryatinski, Andrei | Using our generalization of the Dicke model for quantum emitters coupled to surface plasmon modes, we have predicted a reach phase diagram of plasmon-exciton-polartion states depending on the interaction strengths between the surface plasmon modes and quantum emitters. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2595 | Bose-Einstein Condensation and stimulated thermalization of polaritons in plasmonic lattices | Torma, Paivi; Hakala, Tommi; Moilanen, Antti; Väkeväinen, Aaro; Guo, Rui; Necada, Marek; Martikainen, Jani-Petri; Daskalakis, Konstantinos; Rekola, Heikki | We utilized a special measurement technique, based on formation of the condensate under propagation of the plasmonic excitations, to monitor the sub-picosecond thermalization dynamics of the system. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2596 | Tailoring weak-to-strong coupling of a plasmonic-photonic cavity | Pan, Feng; Goldsmith, Randall | Recently we have demonstrated we could pin down a high dynamic range of system parameters in a coupled plasmonic-photonic cavity. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2597 | Strong coupling beyond the light-line | Menghrajani, Kishan; Barnes, William | We use a vibrational resonance in the polymer PMMA, incorporated into a microcavity with gold mirrors. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2598 | Modified excited states dynamics in the nanoparticle plasmon – molecular exciton hybrids under strong coupling regime | Shegai, Timur | Here, we show that individual plasmonic nanoantennas can strongly couple to molecular J-aggregates, resulting in splitting up to 400 meV, i.e. ~20% of the resonance energy. | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2599 | Cavity Induced Non-adiabatic Effects and Modifications of the Spin-orbit Coupling | Sidler, Dominik; Ruggenthaler, Michael; Appel, Heiko; Rubio, Angel | Cavity Induced Non-adiabatic Effects and Modifications of the Spin-orbit Coupling | Session 195: The Chemical Physics of Molecular Polaritons V. Plasmonic Cavities |
| 2600 | Heisenberg-Kitaev physics in magnetic fields | Vojta, Matthias; Janssen, Lukas | In this talk, I will describe the behavior of the relevant Heisenberg-Kitaev models and their extensions in applied field, with focus on field-induced exotic phases and their experimental signatures. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2601 | Emergence of a field-driven U(1) spin liquid in spin-1 Kitaev systems | Trebst, Simon; Hickey, Ciaran; Stavropoulos, Panagiotis Peter; Berke, Christoph; Kee, Hae-Young | Here we discuss the physics of the spin-1 Kitaev model in a magnetic field and show, by extensive numerical analysis, that for AFM couplings it exhibits an extended gapless U(1) quantum spin liquid at intermediate field strengths. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2602 | Ground-state phase diagram of the Kitaev-Γ model on a honeycomb lattice | Suzuki, Takafumi; Suga, Sei-ichiro | In this study, we focus on the effect of the anisotropic interaction; we connect the isolated dimer limit and the spin-chain limit by changing the coupling constants. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2603 | Large off-diagonal exchange coupling driven magnetic anisotropy and spin liquid states in the C3-symmetric iridate K2IrO3 | Ray, Rajyavardhan; Yadav, Ravi; Nishimoto, Satoshi; Richter, Manuel; Van den Brink, Jeroen | Using ab-initio techniques, we investigate the magnetic couplings in the proposed structural model for K 2IrO 3. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2604 | Chemical tuning between triangular and honeycomb structures in a 5d spin-orbit Mott insulator | Johnson, Roger; Broeders, Ineke; Mehlawat, Kavita; Li, Ying; Singh, Yogesh; Valenti, Roser; Coldea, Radu | We report structural studies of the spin-orbit Mott insulator family KxIryO2 , with triangular layers of edge-sharing IrO6 octahedra bonded by potassium ions. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2605 | Raman Scattering Investigation of a New Candidate for a Quantum Spin Liquid, the Magnetic Insulator, Ba3Ir4O10 | Sokolik, Aaron; Pellatz, Nick; Cao, Gang; Reznik, Dmitry | We will present a comparison of the results of Raman scattering experiments on Sr-doped and undoped samples of Ba 3Ir 4O 10. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2606 | Ab-Initio insight into non-local charge fluctuations in optical conductivity for α-RuCl3 through a Wannier basis: Highlighting the role of chemistry in correlated electron systems | Eichstaedt, Casey; Berlijn, Tom; Burch, Ken; Eguiluz, Adolfo | Ab-Initio insight into non-local charge fluctuations in optical conductivity for α-RuCl3 through a Wannier basis: Highlighting the role of chemistry in correlated electron systems | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2607 | New magnetic order revealed in α-RuCl3 at intermediate magnetic fields using neutron diffraction | Balz, Christian; Janssen, Lukas; Lampen-Kelley, Paula; Banerjee, Arnab; Liu, Yaohua; Yan, Jiaqiang; Mandrus, David; Vojta, Matthias; Nagler, Stephen | Here we discuss neutron diffraction data that clarifies the magnetic structure in this phase. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2608 | Phononic Structure of Kitaev Quantum Spin Liquid Candidate Material alpha-RuCl3 | Berlijn, Tom; Banerjee, Arnab; Cheng, Yongqiang; Mu, Sai | We investigate the phononic structure of alpha-RuCl3 via Density Functional Theory calculations and Inelastic Neutron Scattering experiments. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2609 | X-ray scattering studies of elementary excitations of α-RuCl3 | Lebert, Blair; Kim, Subin; Bisogni, Valentina; Jarrige, Ignace; Barbour, Andi; Alatas, Ahmet; Said, Ayman; Kim, Young-June | We investigated the Kitaeuv quantum spin liquid candidate α-RuCl 3 using resonant inelsatic x-ray scattering (RIXS) and inelastic x-ray scattering (IXS). | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2610 | Raman scattering response in the Kitaev magnet beta-Li2IrO3 and its evolution in the magnetic field | LI, Mengqun; Rousochatzakis, Ioannis; Perkins, Natalia | Here we analyze theoretically the one- and two-magnon Raman scattering intensity in the Kitaev magnet beta-Li2IrO3 and its evolution in the magnetic field. | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2611 | Giant linearly-polarized photogalvanic effect and second harmonic generation in zero-plateau quantum anomalous Hall systems | Yang, Li; Fei, Ruixiang; Song, Wenshen | Combining quantum perturbation theory and first-principles simulation, we predict giant nonlinear optical responses (NLOs) in even septuple layers of MnBi 2Te 4 family materials (MBTs), which are the zero-plateau quantum anomalous Hall systems (QAHs). | Session 196: Towards realizing Kitaev physics and other topological phases |
| 2612 | Berry Curvature Engineering by Gating Two-Dimensional Antiferromagnets | Du, Shiqiao | In this study, we find that the dual gate technology can well tune the electronic and topological properties of antiferromagnetic (AFM) even septuple-layer (SL) MnBi2Te4 thin films. | Session 196: Towards realizing Kitaev physics and other topological phases |