Highlights of Condensed Matter Physics (DCMP) Talks @ APS 2020 March Meeting (2)
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) 2
| Title | Authors | Highlight | Session | |
|---|---|---|---|---|
| 998 | Quantum many-body scars: a new form of weak ergodicity breaking in constrained quantum systems | Papic, Zlatko | I will demonstrate that these properties can be understood using a tractable model based on a single particle hopping on the Hilbert space graph, which formally captures the idea that scarred eigenstates form a representation of a large SU(2) spin that is embedded in a thermalising many-body system. | Session 72: Quantum Many-Body Scars |
| 999 | Quantum many-body scars: connections to integrability and stability | Chandran, Anushya; Khemani, Vedika; Laumann, Christopher; Lin, Cheng-Ju; Motrunich, Olexei | In this talk, I will discuss the connections between integrability and quantum scars by identifying a proximate integrable point at which the non-thermal signatures of the scar states become more pronounced. | Session 72: Quantum Many-Body Scars |
| 1000 | Weak Ergodicity Breaking and Quantum Many-Body Scars in Spin-1 XY Magnets | Iadecola, Thomas; Schecter, Michael | We study the spin-1 XY model on a hypercubic lattice in d dimensions and show that this well-known nonintegrable model hosts an extensive set of anomalous finite-energy-density eigenstates with remarkable properties. | Session 72: Quantum Many-Body Scars |
| 1001 | Phenomenology and mechanisms of Quantum many-body scarring | Ho, Wen Wei; Choi, Soonwon; Turner, Christopher; Pichler, Hannes; Michailidis, Alexios; Chattopadhyay, Sambuddha; Papic, Zlatko; Serbyn, Maksym; Abanin, Dmitry; Lukin, Mikhail | In this talk, I will discuss a different mechanism pertaining to a weak form of ergodicity breaking: Quantum many-body scarring (QMBS) [1]. | Session 72: Quantum Many-Body Scars |
| 1002 | Integrability, Thermalization, and Quantum Scars in a Constrained Hamiltonian | Moudgalya, Sanjay; Prem, Abhinav; Nandkishore, Rahul; Regnault, Nicolas; Bernevig, Andrei | We study the quantum dynamics of a simple translation invariant, center-of-mass preserving model of interacting fermions in one dimension, which arises in multiple experimentally realizable contexts. | Session 72: Quantum Many-Body Scars |
| 1003 | Valence bond phases of herbertsmithite and related copper kagome materials | Norman, Michael; Laurita, Nicholas; Hsieh, David | Here, we consider known and possible distortions of this mineral class, along with related copper kagome oxides and fluorides, relate these to possible valence bond patterns, and comment on their relevance to the physics of these interesting materials. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1004 | Evidence for a parity broken monoclinic ground state in the S = 1/2 Kagome antiferromagnet Herbertsmithite | Laurita, Nicholas; Ron, Alon; Han, Jeong Woo; Lee, Jongseok; Scheie, Allen; Sheckelton, John; Smaha, Rebecca; He, Wei; Wen, Jiajia; Lee, Young; Norman, Michael; Hsieh, David | Here we comprehensively resolve the ground state point group symmetries of the prototypical Kagomé SL candidate ZnCu 3(OH) 6Cl 2 (Herbertsmithite) using a combination of optical ellipsometry and wavelength-dependent multi-harmonic optical polarimetry. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1005 | Magnetism on ideal triangular lattices in NaBaYb(BO3)2 | Ghasemi, Alireza; Guo, Shu; Cava, Robert; Broholm, Collin | Here we study NaBaYb(BO 3) 2, which has two different triangular layers of Yb; one sandwiched between two layers of Na, the other between two layers of Ba. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1006 | Magnetic and charge susceptibilities in the half-filled triangular lattice Hubbard model | Li, Shaozhi; Gull, Emanuel | In this talk, I present momentum-dependent magnetic and charge susceptibilities of the half-filled two-dimensional triangular Hubbard model in the metallic, Mott insulating, and crossover regions of parameter space, using the dual fermion approach. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1007 | Topological flat bands in the 3d transition metal-based kagome lattices | Kang, Min Gu; Fang, Shiang; Ye, Linda; Po, Hoi Chun; Denlinger, Jonathan; Jozwiak, Chris; Bostwick, Aaron; Rotenberg, Eli; Kaxiras, Efthimios; Checkelsky, Joseph; Comin, Riccardo | Here, we report the observation of topological flat bands in series of 3 d transition metal-based kagome compounds. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1008 | Localized states of the topological flat bands in the 3d transition metal kagome compound | Fang, Shiang; Kang, Min Gu; Ye, Linda; Po, Hoi Chun; Denlinger, Jonathan; Jozwiak, Chris; Bostwick, Aaron; Rotenberg, Eli; Checkelsky, Joseph; Comin, Riccardo; Kaxiras, Efthimios | To elucidate the nature of the electronic structure, we perform the ab initio density functional theory calculations. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1009 | Colossal transverse response from non-centrosymmetric kagome ferromagnets | Asaba, Tomoya; Thomas, Sean; Bauer, Eric; Ronning, Filip | Here, we will present the giant transverse response from uranium kagome ferromagnets. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1010 | Wigner solid of charge transfer excitons in Yin-Yang Kagome lattice | Sethi, Gurjyot; Wu, Congjun; Liu, Feng | We demonstrate that photo absorption between two enantiomorphic topological flat bands, as hosted in a Yin-Yang Kagome lattice, provides a perfect platform for the realization of excitonic Wigner crystallization. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1011 | Three-colored quantum scars in the kagome quantum antiferromagnet | Changlani, Hitesh; Pal, Arijeet | In this work we investigate quantum scar eigenstates and the associated dynamical properties for the two dimensional kagome antiferromagnet. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1012 | A new quantum spin liquid candidate with Co-based triangular lattice | Zhong, Ruidan; Guo, Shu; Xu, Guangyong; Xu, Zhijun; Cava, Robert | Here, we report a previously unreported compound, Na2BaCo(PO4)2, a geometrically frustrated system with effective spin-1/2 local moments for Co2+ ions on an isotropic two-dimensional (2D) triangular lattice. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1013 | SU(4) antiferromagnetism on the triangular lattice | Keselman, Anna; Savary, Lucile; Balents, Leon | In particular, we study the SU(4) antiferromagnetic “Heisenberg” model on the triangular lattice, both in the classical limit and in the quantum regime. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1014 | Stability of chiral spin liquid phase of the triangular lattice Hubbard model with hopping anisotropy | Szasz, Aaron; Motruk, Johannes | To better connect to experimental results in such spin liquid candidates, in this work we investigate the stability of the chiral spin liquid against anisotropy in the hopping and show that the phase survives, providing further support for the applicability of our findings to experiments. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1015 | Dynamical DMRG study of spin excitation dynamics in triangular lattice spin-1/2 antiferromagnet | Sota, Shigetoshi; Shirakawa, Tomonori; Yunoki, Seiji; Tohyama, Takami | By using the dynamical DMRG method, here we investigate the spin excitation dynamics of the triangular lattice spin-1/2 antiferromagnetic Heisenberg model. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1016 | Spin properties of triangular-lattice rare-earth compounds K2CsYb(PO4)2 and K2CsEr(PO4)2 | Ge, Luwei; Huang, Qing; Dun, Zhiling; Zhou, Haidong; Mourigal, Martin | Here we report our detailed study of two such rare-earth-based compounds K 2CsYb(PO 4) 2 and K 2CsEr(PO 4) 2, where the magnetic ions form equilateral triangular lattices and where site mixing/distortion effects are absent. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1017 | Imaging antiferromagnetic domains of PdCrO2 | Lee, Changmin; Little, Arielle; Dusad, Ritika; Zhakina, Elina; McGuinness, Philippa; Sunko, Veronika; Khim, Seunghyun; Hicks, Clifford; Mackenzie, Andrew; Orenstein, Joseph | Here we spatially resolve the antiferromagnetic domains of PdCrO 2 using a novel temperature-modulated birefringence imaging setup. | Session 73: Kagome and Triangular Lattice Magnetism |
| 1018 | Unconventional anomalous Hall effect in Fe3GeTe2 and Fe5GeTe2 | Macy, Juan; Chiu, Yu-Che; Weiland, Ashley; McCandless, Gregory; Chan, Julia; Balicas, Luis | Unconventional anomalous Hall effect in Fe3GeTe2 and Fe5GeTe2 | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1019 | Gate-tunable magnetism in vanadium-doped tungsten diselenide monolayer | Duong, Dinh Loc; Yun, Seok Joon; Lee, Young-Hee | We found that a transition from the long-range ferromagnetic order to the short-range antiferromagnetic order can be tuned by injecting electrons to compensate for the p-doping effect of vanadium by density functional calculations. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1020 | Proximity effect between graphene and 2D anti-ferromagnetic insulator α-RuCl3 | Seifert, Edward; Gopalan, Devashish; Fei, Zaiyao; Xu, Xiaodong; Mandrus, David; Hunt, Benjamin | We report transport results from proximity devices consisting of graphene and α-RuCl3, a layered anti-ferromagnetic Mott insulator predicted to host a so-called Kitaev quantum spin liquid. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1021 | Emergent quantum Hall ground states driven by proximity exchange coupling in 2D material/ferromagnet interfaces | Suri, Dhavala; Saydjari, Andrew; Zhong, Lingyi; Omar, Siddharth; Guo, Zhongxun; Gray, Mason; Rocci, Mirko; Burch, Kenneth; Bao, Wenzhong; Van Wees, Bart; Lee, Patrick; Yacoby, Amir; Wei, Peng; Moodera, Jagadeesh | In this talk we will discuss the details of emergent ground state in 2D material/Ferromagnet interface effects along with future direction. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1022 | Observation of Exchange bias effect in ferro-/antiferromagnetic van der Waals heterostructures | Lee, Changgu; Srivastava, Pawan; Hassan, Yasir; Ahn, Hyobin; Jung, Soon-Gil; Gebredingle, Yisehak; Joe, Minwoong; Sabbtain, Abbas; Kang, Byunggil; Park, Tuson; Park, Je-Guen; Lee, Kyung-Jin | In a metallic FM /semiconducting AFM vdW heterostructure, we experimentally demonstrate that a finite exchange bias is maintained down to bilayer AFM and it vanishes at monolayer. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1023 | Edge Effects in Transition Metal Dichalcogenides on Antiferromagnetic Substrates | Cortés, Natalia; Avalos-Ovando, Oscar; Ulloa, Sergio | We model the heterostructure in real space with a tight-binding model, incorporating the exchange and Rashba fields induced by proximity from the substrate. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1024 | Partial Flatbands in a Spin-Orbit Coupled Twisted Bilayer Lieb Lattice | Saxena, Avadh; Banerjee, Saikat | In this work, we analyze the topological properties of a partial/complete flatband in an apparently not so well known system — a bilayer Lieb lattice. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1025 | Yttrium-based Janus transition metal chalcogenides: Magnetic layered multiferroics | Kumar, Pankaj; Manchanda, Priyanka; Dev, Pratibha | In this talk, we present our theoretical research on a new class of magnetic 2D materials – Yttrium-based Janus transition metal chalcogenide (TMD) semiconductors. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1026 | Enhanced Zeeman splitting in MoS2 monolayers doped with transition metals. | Bhattacharya, Arinjoy; Bian, Mengying; Najafi, Arman; Wang, Peijian; Jalouli, Alireza; Wang, Jieqiong; Zhou, Jiadong; Yang, Sen; Liu, Zheng; Zeng, Hao; Petrou, Athos | We developed an approach to dope MoS 2 monolayers with controllable concentration of transition metal ions. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1027 | Optical rotation in thin chiral/twisted materials and the gyrotropic magnetic effect | Wang, Yanqi; Morimoto, Takahiro; Moore, Joel | Starting from multi-band Kubo formula, we derive a generic expression for GME current in quasi-2d materials induced by low-frequency light, and provide a Feynman diagrammatic interpretation. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1028 | Proximity exchange effects in excitons of TMDC/ferromagnet van der Waals heterostructures | Faria Junior, Paulo; Zollner, Klaus; Fabian, Jaroslav | Combining ab initio calculations with tight-binding modeling and the effective Bethe-Salpeter equation for excitons, we investigate the proximity exchange in TMDC/ferromagnet systems: (i) (Mo,W)Se2 on the ultrathin van der Waals ferromagnet CrI3[2] and (ii) (Mo,W)S2/hBN on ferromagnets Co and Ni[3]. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1029 | Influence of interface-induced spin-orbit interaction on transport in graphene-on-WSe2 heterostructures | Zubair, Muhammad; Tahir, Muhammad; Vasilopoulos, Panagiotis | We investigate the electronic dispersion of such heterostructures in the presence of a proximity induced spin-orbit interaction (SOI) using a tight-binding (TB) model. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1030 | Flavor Quantum Dots and Artificial Quark Model in Transition Metal Dichalcogenides | Bao, Zhi-qiang; Cheung, Patrick; Zhang, Fan | We show that the triply degenerate Q valleys in few-layer transition metal dichalcogenides provide a unique platform for exploring the rare flavor SU(3) symmetry in quantum dot geometry. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1031 | Exchange Interaction Between Magnetic Adatoms in Irradiated Graphene | Ke, Modi; Asmar, Mahmoud; Tse, Wang Kong | We present a theory for the non-equilibrium RKKY interaction in graphene irradiated by circularly polarized light. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1032 | Spin-Induced Optical Anisotropy on van der Waals Antiferromagnet | Wang, Xingzhi; Cao, Jun; Kitadai, Hikari; Li, Tianshu; Ling, Xi | Our studies reveal the unique electronic and magnetic properties of NiPS 3, paving the way for potential functionalities and applications of 2D magnetic materials. | Session 74: Magnetism and Magnetic Phenomena in 2D Materials |
| 1033 | The variational and diagrammatic quantum Monte Carlo approach to the many-electron problem | Chen, Kun; Haule, Kristjan | Here we show that combining both, and introducing a diagrammatic quantum Monte Carlo method, results in a powerful and accurate solver to the generic solid state problem, in which a macroscopic number of electrons interact by the long-range Coulomb repulsion. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1034 | Modern diagrammatic many body techniques. | Rossi, Riccardo; Simkovic, Fedor; Ferrero, Michel | In this talk I will discuss recent progress on the development of unbiased diagrammatic techniques for strongly-correlated many-body systems. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1035 | Faster-than-the-Clock Quantum Monte Carlo | Simkovic, Fedor; Ferrero, Michel; Rossi, Riccardo | In this talk we present a way to naturally merge and extend Monte Carlo accelation techniques with the sampling of set functions, which can be viewed as the partition function of a bosonic system. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1036 | A light weight regularization for wave function parameter gradients in quantum Monte Carlo | Pathak, Shivesh; Wagner, Lucas | In this work we derive a simple regularization of the naive estimator which is easy to implement and has a neglible bias. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1037 | Measuring Rényi Entanglement Entropies in Lattice Worm Algorithm Quantum Monte Carlo | Casiano-Diaz, Emanuel; Herdman, Chris; Del Maestro, Adrian | In this talk we report on an extension of lattice worm algorithm quantum Monte Carlo that allows for the exact simulation of interacting bosons at zero temperature. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1038 | Diagrammatic Monte Carlo for Molecules | Li, Jia; Wallerberger, Markus; Gull, Emanuel | In this talk, I aim to introduce our DiagMC implementation for multi-orbital systems, and present our results when it is applied to realistic molecular systems. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1039 | Hybridizing Pseudo-Hamiltonians and Non-local Pseudopotentials in Diffusion Monte Carlo | Krogel, Jaron; Reboredo, Fernando | In this work, we explore the hybridization of NLPPs and PHs in an attempt to reduce the non-local components. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1040 | Excitations with Diffusion Monte Carlo: a bottom-up approach. | Reboredo, Fernando | In this talk we will discuss an alternative approach: how to extract excited state properties as an observable of the many-body ground state evaluated within a standard DMC method. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1041 | Diagrammatic Monte Carlo for real materials | Azadi, Sam; Davydov, Arkadiy; Kozik, Evgeny | We present a systematic method for reaching beyond the GW approximation by Diagrammatic Monte Carlo (DiagMC) for first-principle simulations of real materials. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1042 | Evaluation of arbitrary Feynman graphs via algorithmic methods. | LeBlanc, James | In this talk we present an algorithm for fully symbolic evaluation of arbitrary Feynman diagrams that overcomes this issue, and many others. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1043 | Diagrammatic Monte Carlo for attractively interacting fermions | Spada, Gabriele; Rossi, Riccardo; Ohgoe, Takahiro; Simkovic, Fedor; Ferrero, Michel; Van Houcke, Kris; Werner, Félix | I will present results for two cases of experimental relevance: The normal phase of the unitary Fermi gas, and the superfluid phase of the attractive Hubbard model. | Session 75: Precision Many-Body Physics: Novel Methods and Algorithms |
| 1044 | Topology and the doped Kondo Heisenberg model | May-Mann, Julian; Levy, Ryan; Fradkin, Eduardo; Clark, Bryan; Soto, Rodrigo; Cho, Gil Young | We have investigated this claim on the lattice using DMRG, and found no evidence for these proposed zero modes. | Session 76: Kondo Models |
| 1045 | Fermionic multichannel dynamical large-N approach to Kondo lattice model | Wang, Jiangfan; Chang, Yung-Yeh; Chung, Chung-Hou | We establish a novel theoretical framework to study the quantum phases and phase transitions of a two- dimensional Kondo Heisenberg lattice model based on the dynamical large- N approach to the multichannel pseudofermion representation of the model with Sp( N) × SU( K) symmetry with N and K being number of spin flavors and Kondo screening channels, respectively. | Session 76: Kondo Models |
| 1046 | Kondo effect due to a hydrogen impurity in graphene: A multichannel Kondo problem with diverging hybridization | Shi, Zheng; Nica, Emilian; Affleck, Ian | We consider the Kondo effect arising from a hydrogen impurity in graphene. | Session 76: Kondo Models |
| 1047 | Magnon Bose-Einstein Condensation and Superconductivity in a Frustrated Kondo Lattice | Pixley, Jed; Volkov, Pavel; Gazit, Snir | Using field theory techniques and precise density matrix renormalization group calculations, we provide a solution of the model as a function of the Kondo coupling and magnetic field. | Session 76: Kondo Models |
| 1048 | Magnetic Doublon Bound States in the Kondo Lattice Model | Rausch, Roman; Potthoff, Michael; Kawakami, Norio | We present a novel pairing mechanism for electrons, mediated by magnons. | Session 76: Kondo Models |
| 1049 | Competing Energy Scales and Quasiparticle Dynamics in a Driven Kondo Impurity System | Lai, Chen-Yen; Si, Qimiao; Zhu, Jian-Xin | Here we propose a model study as a proof of principle to first determine the corresponding Kondo energy scale by using the matrix product state to simulate the Fermi-Bose-Anderson impurity model, which is a good starting model for the study of Kondo lattice model. | Session 76: Kondo Models |
| 1050 | Universality in the ferromagnetic strong coupling regime of the Kondo model out of equilibrium | Culver, Adrian; Andrei, Natan | We present a nonperturbative method for calculating the time-dependent many body wavefunction following a local quench and use it to find new results in and out of equilibrium in the universal strong ferromagnetic regime of the Kondo model. | Session 76: Kondo Models |
| 1051 | Comparing Different Refermionizations of Multichannel Kondo Hamiltonians | Ljepoja, Aleksandar; Shah, Nayana; Bolech, C. | Following a critical revision of the procedures for bosonization and debosonization of theories with boundaries [1,2] we consider novel alternative schemes to arrive at refermionized Hamiltonians for the standard multichannel Kondo model. | Session 76: Kondo Models |
| 1052 | Various Fermi liquid phases on the Kondo – Heisenberg model at quarter filling | Kim, Hee Seung; Yang, Hyeok-Jun; Lee, SungBin | Motivated by exotic phases emerged from Kondo insulators, we study transport properties of electronic system under Kondo and Heisenberg interactions. | Session 76: Kondo Models |
| 1053 | Emergent non-Fermi liquid phenomena in itinerant electron systems with multipolar local moments | Patri, Adarsh; Khait, Ilia; Kim, Yong-Baek | In this talk, we theoretically investigate the fate of the multipolar Kondo effect, where the local moment does not carry any dipole moment, but only quadrupolar and octupolar moments. | Session 76: Kondo Models |
| 1054 | Global phase diagram of a Kondo Hund impurity model and the destruction of Fermi-liquid theory | Wang, Yilin; Walter, Elias; Lee, Seung-Sup; Stadler, Katharina; Von Delft, Jan; Weichselbaum, Andreas; Kotliar, Gabriel | In this Letter, we interpret its smallness in terms of proximity to quantum critical points (QCPs): We use the numerical renormalization group (NRG) to compute the global phase diagram of the simplest three-channel spin-orbital Kondo impurity model capturing the essential physics of Hund metals. | Session 76: Kondo Models |
| 1055 | Dynamical Kondo effect and Kondo destruction in effective models for quantum-critical heavy fermion metals | Cai, Ang; Hu, Haoyu; Ingersent, Kevin; Buehler-Paschen, Silke; Si, Qimiao | We demonstrate that the dynamical Kondo effect is important for the stability of Kondo-destruction quantum criticality and provides understanding of the enhanced effective mass in the Kondo-destroyed phase. | Session 76: Kondo Models |
| 1056 | Multiorbital Hund’s coupled impurity in the mixed valence regime | Drouin-Touchette, Victor; Koenig, Elio; Komijani, Yashar; Coleman, Piers | Motivated by the relevance of Hund’s coupling in iron-based superconductors, we revisit the problem of a multiorbital Anderson impurity with Hund’s interaction. | Session 76: Kondo Models |
| 1057 | Numerical renormalization group method for computing four-point correlation functions | Lee, Seung-Sup; Kugler, Fabian; Von Delft, Jan | We present results for paradigmatic models, including the effective quantum impurity model arising in DMFT treatments of the Hubbard model. | Session 76: Kondo Models |
| 1058 | Fractionalized Fermi liquid in square-lattice Kondo-Heisenberg model | Chang, Yung-Yeh; Chung, Chung-Hou; Tsvelik, Alexei | The Kondo-Heisenberg model on a (un-frustrated ) square lattice is studied via a controlled large-N (Sp(2N)) approach to demonstrate on a general ground the existence of a peculiar metallic state so-called “fractionalized Fermi liquid (FL*)” with unbroken translational symmetry and a Fermi surface volume not controlled by the total electron density. | Session 76: Kondo Models |
| 1059 | Probing quench dynamics across a quantum phase transition into a 2D Ising antiferromagnet | Bakr, Waseem | Probing quench dynamics across a quantum phase transition into a 2D Ising antiferromagnet | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1060 | Dynamics of a hole in a quantum antiferromagnet | Bohrdt, Annabelle; Grusdt, Fabian; Knap, Michael; Vijayan, Jayadev; Sompet, Pimonpan; Salomon, Guillaume; Koepsell, Joannis; Hirthe, Sarah; Bloch, Immanuel; Groß, Christian | We numerically study the real-time dynamics of a single hole created in the ground state of the t−J model on a square lattice. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1061 | Many-Body Dephasing after Quantum Quench with a Trapped Ion Quantum Simulator | Guo, Lingzhen; Kaplan, Harvey; Tan, Wen Lin; De, Arinjoy; Pagano, Guido; Marquardt, Florian; Monroe, Christopher | We investigate many-body dephasing in the 1D transvese-filed Ising chain with long-range power-law interactions. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1062 | Subdiffusion and Heat Transport in a Tilted 2D Fermi-Hubbard System | Guardado-Sanchez, Elmer; Morningstar, Alan; Spar, Benjamin; Brown, Peter; Huse, David; Bakr, Waseem | In order to explain the underlying physics we develop a hydrodynamic model that exhibits this crossover. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1063 | Reservoir engineering and many-body decoherence in the quantum Ising model | Carr, Lincoln; Jaschke, Daniel; de Vega, Ines | We present quantitative predictions for quantum simulator experiments on Ising models from trapped ions to Rydberg chains and show how the thermalization, and thus decoherence times, can be controlled by considering common, independent, and end-cap couplings to the bath. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1064 | Spin squeezing dynamics and large-spin analogues in an optical lattice clock | Perlin, Michael; Rey, Ana Maria | We show how the multilevel generalization of interactions, spin-orbit coupling, and external driving fields can be treated in a simple, unified form. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1065 | Dynamic instabilities and universal relaxation in quantum spin systems | Rodriguez Nieva, Joaquin; Bhattacharyya, Saraswat; Sels, Dries; Demler, Eugene | I will discuss manifestations of SU(2) symmetry on the universal dynamics of Heisenberg ferromagnets driven out of equilibrium. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1066 | Non-local emergent hydrodynamics in a long-range quantum spin system | Schuckert, Alexander; Lovas, Izabella; Knap, Michael | We show [1] how this universality is extended by effective classical Lévy flights in the presence of long-range couplings that decay algebraically with distance as r -α for 0.5<α≤1.5. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1067 | Nonequilibrium dynamics and transport in the frustrated two bath spin boson model | Belyansky, Ron; Whitsitt, Seth; Lundgren, Rex; Wang, Yidan; Gorshkov, Alexey | In this work, we use numerical and analytical methods to study the dynamics of a generalized spin boson model where the spin is coupled to two independent Ohmic baths via non-commuting operators. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1068 | Unravelling open quantum systems on a NISQ Computer | Petruccione, Francesco; Sinayskiy, Ilya; Park, Kyungdeock; RHEE, June-Koo(KEVIN) | Here, we show how such unravellings can be simulated on a NISQ computer. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1069 | Linear response theory for the OTOC and entropy growth in dissipative systems. | Chen, Xin | We formulate the linear response theory to calculate the out-of-time ordered corralator (OTOC) and the entropy growth for dissipative systems, i.e. systems suddenly coupled to a thermal bath, which helps to understand the behavior of the information scrambling in the early stage. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1070 | Prethermal non-equilibrium phases in classical systems | Ye, Bingtian; Machado, Francisco; Yao, Norman | In particular, we prove the existence of an emergent symmetry in the prethermal regime, and utilize this symmetry to generate novel non-equilibrium phases such as classical prethermal discrete time crystals (CPDTC). | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1071 | Engineering generalized Gibbs ensembles with trapped ions | Reiter, Florentin; Lange, Florian; Jain, Shreyans; Grau, Matt; Home, Jonathan; Lenarcic, Zala | We present an implementation scheme for a particular choice of Lindblad operators and suggest experimental observables which detect that a GGE approximately describes the stabilized steady-state. | Session 77: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |
| 1072 | Clathrate Superhydrides Under High Pressure: A Class of Extraordinarily Hot Conventional Superconductors | Ma, Yanming | In an effort to search for Room-T superconductors, we proposed the first-ever sodalite-like clathrate superhydride CaH 6 1 suffering at extreme pressures that shows a potential of high superconductivity and is not captured at ambient pressure. | Session 78: Room temperature superconductivity in superhydrides at extreme pressures |
| 1073 | Road to Hot Hydride Superconductors | Ahart, Muhtar; Kumar, Ravhi; Somayazulu, Maddury; Hemley, Russell | Density-functional based structure-search methods calculations combined with BCS-type models predicted a series of dense hydride high T c superconductors ( e.g., CaH 6, H 3S) at megabar pressures (>100 GPa), followed by the still higher T c superhydrides ( e.g., LaH x, YH x, with x > 6). | Session 78: Room temperature superconductivity in superhydrides at extreme pressures |
| 1074 | Progress in high-temperature conventional superconductivity | Eremets, Mikhail | We will present recent studies on YHx, CaHx and other compounds that are considered as potential room-temperature superconductivitors. | Session 78: Room temperature superconductivity in superhydrides at extreme pressures |
| 1075 | Electronic Structure and Superconductivity in Binary and Ternary Hydrides Under Pressure | Zurek, Eva | We explore the relationship between their structure and electronic structure, as well as their propensity for superconductivity. | Session 78: Room temperature superconductivity in superhydrides at extreme pressures |
| 1076 | Superconductivity in Yttrium and Thorium Polyhydrides: a Route to Industrial Applications | Semenok, Dmitrii; Troyan, Ivan; Huang, Xiaoli; Oganov, Artem | Here we will present the latest results in high-pressure chemistry of Y, Ba, Sr, Eu superhydrides and measurements of their transport properties with targeted focus on ternary systems and doping of already known SC materials. | Session 78: Room temperature superconductivity in superhydrides at extreme pressures |
| 1077 | Emergent transport properties on the verge of metal-insulator transitions in pyrochlore 5d/4d oxides | Ueda, Kentaro | Here, we report another examples of such states in Pr 2Ir 2O 7, which is known as a paramagnetic Luttinger semimetal. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1078 | Multiorbital effects in Sr2IrO4 under an external field | Engström, Lena; Pereg-Barnea, Tami; Witczak-Krempa, William | We use a multiple order parameter, self-consistent mean-field approach to explore the relevance of multiorbital effects to possible exotic phases in Sr 2IrO 4 in an external magnetic field. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1079 | Electrical resistivity relaxation under uniaxial strain in BaIrO3 at room temperature | Siegfried, Peter; Zhao, Hengdi; Cao, Gang; Lee, Minhyea | We investigate the 5 d transition metal oxide BaIrO 3, in which the ground state is strongly dependent on the corner sharing Ir-O-Ir buckling angle between the face sharing octahedral trimers. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1080 | In-situ anisotropic strain controlled metamagnetism of Sr2IrO4 by pseudo-Jahn-Teller distortion | Zhang, Han; Hao, Lin; Yang, Junyi; Mutch, Joshua; Liu, Zhaoyu; Huang, Qing; Noordhoek, Kyle; May, Andrew; Chu, Jiun-Haw; Kim, Jong Woo; Ryan, Philip; Zhou, Haidong; Liu, Jian | In this study, we drove the metamagnetic transition of Sr 2IrO 4 bulk crystal into distinct regimes by applying in-situ anisotropic strain. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1081 | Thickness Dependent Magnetic Reversal in Sr4Ru3O10 Nanosheets | Liu, Yan; Yang, Jiyong; Mao, Zhiqiang; Cao, Gang; Tian, Mingliang | Here, we investigated the thickness-dependent anisotropic magnetoresistance (AMR) of pure and 2% Fe-doped Sr 4Ru 3O 10 nanosheets. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1082 | Transport phenomena in ultraclean 111 oriented SrVO3 thin films | Roth, Joseph; Kuznetsova, Tatiana; Engel-Herbert, Roman | We compare the temperature dependent electronic transport properties of (111) and (001) oriented SrVO 3 thin films. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1083 | Growth and Characterization of Heterostructures of Ferromagnetic SrRuO3 and Superconducting Sr2RuO4 by Molecular-Beam Epitaxy | Schreiber, Nathaniel; Nair, Hari; Ruf, Jacob; Miao, Ludi; Goodge, Berit; Kourkoutis, lena; Shen, Kyle; Schlom, Darrell | In this talk, we describe the growth of SrRuO 3/Sr 2RuO 4 heterostructures using oxide molecular-beam epitaxy. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1084 | Intrinsic tunable anomalous Hall effect induced by momentum-space Berry curvature in SrRuO3 | Sohn, Byungmin; Lee, Eunwoo; Oh, Ji Seop; Kyung, Wonshik; Yoo, Hanyoung; Yang, Bohm-Jung; Kim, Changyoung | Recently, we observed an abnormal behavior of AHE in SRO ultrathin films. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1085 | Spectroscopic study on band evolution and formation of relativistic Mott insulating phase in Ir doped Sr2RuO4 | Kwon, Junyoung; Kim, Beom Seo; Denlinger, Jonathan; Bostwick, Aaron; Rotenberg, Eli; Choi, Young Jai; Kyung, Wonshik; Kim, Changyoung | Recent research showed 4d, 5d transition metal oxide provides rich novel physical properties. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1086 | Spectroscopic evidence for electron-boson coupling in electron-doped Sr2IrO4 | Hu, Yong; Chen, Xiang; Peng, Shuting; Lane, Christopher; Matzelle, Matthew; Sun, Zeliang; Hashimoto, Makoto; Lu, Donghui; Schwier, Eike; Arita, Masashi; Wu, Tao; Markiewicz, Robert; Shimada, Kenya; Chen, Xianhui; Shen, Zhixun; Bansil, Arun; Wilson, Stephen; He, Junfeng | Here, we report spectroscopic evidence for the presence of the third key player in electron-doped Sr 2IrO 4: electron-boson coupling. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1087 | Relaxation Dynamics at High-symmetry Points in Sr2IrO4 through Time- and Angle-resolved Photoemission Spectroscopy | Choi, Dongsung; Azoury, Doron; Baldini, Edoardo; Lyu, Baiqing; Zong, Alfred; Porter, Zach; Wilson, Stephen; Gedik, Nuh | Pioneering studies have shown that chemical doping modifies the electronic band structure in electron-doped Sr 2IrO 4. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1088 | Magnetic-field-dependent second-harmonic generation study of Sr2IrO4 | Seyler, Kyle; De la Torre, Alberto; Porter, Zach; Cao, Gang; Wilson, Stephen; Hsieh, David | In this talk, we will present magnetic-field-dependent SHG rotational anisotropy and microscopy studies that further elucidate the nature of this hidden state. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1089 | Raman measurements on Sr2IrO4 grown in magnetic field | Pellatz, Nick; Reznik, Dmitry; Cao, Gang | Here I will present a comparison of Raman scattering data from normal and field-grown Sr 2IrO 4. | Session 79: Metal-Insulator transition in 4d/5d oxides |
| 1090 | Computing Transport Coefficients of Many-Body Hamiltonians by Equilibrium Averages | Auerbach, Assa; Khait, Ilia; Bashan, Noga | We review continued fractions dynamical conductivity and Hall and Thermal Hall coeffiicents calculations for the Bose and Fermi Hubbard models, and the disordered Heisenberg chain. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1091 | Investigation of the universal scattering rate in PdCrO2 by high energy electron irradiation | Zhakina, Elina; McGuinness, Philippa; Sunko, Veronika; Konczykowski, Marcin; Khim, Seunghyun; Koenig, Markus; Mackenzie, Andrew | We introduced point defects to FIB microstructures of PdCrO 2 by irradiating them with high-energy electrons. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1092 | Quantum Paracrystalline Shear Resonances in Metals | Khoo, Jun Yong; Chang, Po-Yao; Pientka, Falko; Sodemann, Inti | We propose two strategies to excite and probe this unconventional mode. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1093 | Polarizability and magnetoplasmons for the α-T3 model | Gumbs, Godfrey; Dahal, Dipendra; Balassis, Antonios; Iurov, Andrii; Huang, Danhong | Polarizability and magnetoplasmons for the α-T3 model | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1094 | The origin of sub-room temperature ferromagnetism in VSe2 monolayer: reduced dimension and electron correlation | Kim, Taekjung; Ryee, Siheon; Choi, Sangkook; Han, Myung Joon | In this presentation we apply LDA+DMFT (local density approximation plus dynamical mean-field theory) approach to study the magnetic properties of bulk and monolayer VSe 2. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1095 | Modulation of magnetism across the van der Waals interfaces | Matsuoka, Hideki; Bahramy, Mohammad; Wang, Yue; Yoshida, Satoshi; Ishizaka, Kyoko; Iwasa, Yoshihiro; Nakano, Masaki | In the presentation, we will show transport properties of those magnetic heterostructures, and discuss the interface proximity effect on 2D magnetism. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1096 | High-Temperature Ferromagnetic Resonance in FePt Thin Films | Liu, Chuanpu; Srinivasan, Kumar; Ajan, Antony; McCollum, Ethan; Wu, Mingzhong | This presentation reports high- T FMR studies on continuous FePt thin films with cubic structures, rather than L1 0 structures. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1097 | Structure and Magnetism of New Metastable Fe8Co8N2 Compound | Balasubramanian, Balamurugan; Pahari, Rabindra; Valloppilly, Shah; Li, Xingzhong; Skomski, Ralph; Xu, Xiaoshan; Wang, Cai-Zhuang; Ho, Kai-Ming; Sellmyer, David | Guided by theoretical predictions [4], we have produced a new Fe 8Co 8N 2 compound in the form of nanoparticles using a cluster-deposition method and characterized it by XRD, XPS, STEM, EDS and magnetometry measurements. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1098 | Topology on a new facet of bismuth | Lin, Hsin; Hsu, Chuang-Han; ZHOU, XIAOTING; Chang, Tay-Rong; Ma, Qiong; Gedik, Nuh; Bansil, Arun; Xu, Suyang; Fu, Liang | In this talk, we uncover another hidden facet of the band topology of bismuth by showing that bismuth is also a first-order topological crystalline insulator protected by a two-fold rotational symmetry. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1099 | The relation between ferromagnetism and structure in half-metallic transition metal oxides | Saghayezhian, Mohammad; Wang, Zhen; Guo, Hangwen; Jin, Rongying; Zhu, Yimei; Zhang, Jiandi; Plummer, E | We have mapped the phase diagram of this material and discovered that at a specific oxygen pressure and above a critical thickness, a complex magnetic behavior appears. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1100 | Anomalous suppression of higher-order nonlinearities in 3D Dirac semimetals | Lim, Jeremy; Ang, Yee Sin; Ang, Lay Kee; Wong, Liang Jie | Here, we present a counter-intuitive feature of 3D Dirac semimetals that sets them apart from their 2D counterparts: the absence of field-induced intraband nonlinearities beyond the third order at zero temperature at or near a critical field strength. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1101 | Topological Semimetal in a Chiral Crystal with Large Chern Numbers, Multifold Band Crossings, and Long Fermi-arcs | Vergniory, Maia | Using angle-resolved photoelectron spectroscopy and ab- initio calculations, here we show that the chiral topological semimetal candidate PdGa displays the required multifold nodes, which are connected by long surface Fermi-arcs. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1102 | Polar and Phase Domain Walls in Weyl Semimetallic MoTe2: New Paradigm for Topological Interfacial States | Huang, Fei-Ting; Lim, Seong Joon; Singh, Sobhit; Kim, Jinwoong; Zhang, Lunyong; Kim, Jaewook; Chu, M.-W; Rabe, Karin; Vanderbilt, David; Cheong, Sang-Wook | We demonstrate how polar domain walls can be manipulated with electron beams, and show that phase domain walls tend to form superlattice-like structures along the c axis. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1103 | Giant extrinsic anomalous Hall effect in the Kagome, Dirac Antimonide KV3Sb5 | Wang, Yaojia | Here we report the observation of a giant extrinsic AHE in KV 3Sb 5, an exfoliable Dirac semimetal with a spin 1/2 Kagome layer of Vanadium atoms. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1104 | Quantum squeezing and coherence of magnons detected by spin transport | Belzig, Wolfgang; Kamra, Akashdeep | We predict the emergence of novel magnetic quasiparticles, mediated by magnetic dipolar interactions, even for a uniform ground states. | Session 80: Metals: Magnetism, Semi-metals and Topology |
| 1105 | Homotopical classification of non-Hermitian band structures | Li, Zhi; Mong, Roger | We proposed a framework towards the topological classification of non-Hermitian band structures. | Session 81: Non-Hermitian Topological Phases |
| 1106 | Doubling theorem for Fermi points, degenerate points, and exceptional points in 2D non-Hermitian systems | Chiu, Ching-Kai; Yang, Zhesen; Schnyder, Andreas | We show that these three types of protected points obey the doubling theorem in the 2D Brillouin Zone in this talk. | Session 81: Non-Hermitian Topological Phases |
| 1107 | Non-Hermitian exceptional Landau quantization in electric circuits | Zhang, Xiao-Xiao; Franz, Marcel | We propose here a realization of a time-reversal invariant pseudo-magnetic field, enabling the exploration of non-Hermitian physics under external magnetic field. | Session 81: Non-Hermitian Topological Phases |
| 1108 | Topological invariants for non-Hermitian chiral-symmetric systems | Hyart, Timo; Brzezicki, Wojciech | We introduce a minimal model Hamiltonian supporting topologically nontrivial phases in this symmetry class, derive its topological phase diagram and calculate the end states originating from the hidden Chern number. | Session 81: Non-Hermitian Topological Phases |
| 1109 | Non-Hermitian band theory of directional amplification | Xue, Wentan; Li, Ming-Rui; Song, Fei; Hu, Yu-Min; Wang, Zhong | Here, we show that the non-Bloch band theory provides a natural framework for the intriguing phenomenon of directional amplification (or nonreciprocal amplification) that is useful in many applications. | Session 81: Non-Hermitian Topological Phases |
| 1110 | Non-Hermitian skin effect and chiral damping in open quantum systems | Song, Fei; Yao, Shunyu; Wang, Zhong | In this Letter, we find that Liouvillian superoperators can exhibit the non-Hermitian skin effect, and uncover its unexpected physical consequences. | Session 81: Non-Hermitian Topological Phases |
| 1111 | Observation of non-Hermitian topology and its bulk-edge correspondence | Ghatak, Ananya; Brandenbourger, Martin; Wezel, Jasper; Coulais, Corentin | Here, we discover and observe a novel form of bulk-edge correspondence for non-Hermitian topological phases. | Session 81: Non-Hermitian Topological Phases |
| 1112 | Symmetry and Topology in Non-Hermitian Physics | Kawabata, Kohei; Shiozaki, Ken; Ueda, Masahito; Sato, Masatoshi | Here, we develop a general theory of symmetry and topology in non-Hermitian physics. | Session 81: Non-Hermitian Topological Phases |
| 1113 | Classification of Exceptional Points and Non-Hermitian Topological Semimetals | Bessho, Takumi; Kawabata, Kohei; Sato, Masatoshi | Here we present the complete classification of generic topologically stable exceptional points according to fundamental symmetries of charge conjugation, parity, and time reversal. | Session 81: Non-Hermitian Topological Phases |
| 1114 | Non-Hermitian physical aspects in disordered Weyl/Dirac semimetals | Matsushita, Taiki; Nagai, Yuki; Fujimoto, Satoshi | In this presentation, we propose a general scheme for the generation of disorder-induced Weyl exceptional rings, a spectral collapse of Landau levels. | Session 81: Non-Hermitian Topological Phases |
| 1115 | Non-Hermitian fractional quantum Hall states with 1/3 filling | Tsuneya, Yoshida; Kudo, Koji; Hatsugai, Yasuhiro | We characterize the nHFQH states with the topological degeneracy under the periodic boundary condition and the total Chern number Ctot=1 for the ground state triplet. | Session 81: Non-Hermitian Topological Phases |
| 1116 | Appearance of a topological semimetal phase in 1D non-Hermitian systems | Yokomizo, Kazuki; Murakami, Shuichi | In our previous work, we establish a non-Bloch band theory in one-dimensional (1D) tight-binding non-Hermitian systems [1]. | Session 81: Non-Hermitian Topological Phases |
| 1117 | Strain-induced valley polarization in monolayer graphene | Hao, Duxing; Hsu, Chen-Chih; Teague, Marcus; Wang, Jiaqing; Yeh, Nai-Chang | We use nearly strain-free PECVD-grown graphene [1] to induce controllable strain and pseudo-magnetic fields by nanoscale strain engineering [2]. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1118 | Plasmonic Doppler Effect in Graphene | Dong, Yinan; Xiong, Lin; Phinney, Isabelle; Jing, Ran; Sun, Zhiyuan; McLeod, Alexander; Zhang, Shuai; Fogler, Michael; Jarillo-Herrero, Pablo; Levitov, Leonid; Bandurin, Denis; Basov, Dmitri | Here we utilize cryogenic nano-imaging technique to search for the current-induced Doppler effect in the SPP dynamics in graphene. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1119 | Plasmonic Nonreciprocity and Doppler Effect: The Role of Electron-Electron Interactions | Gao, Haoyang; Dong, Zhiyu; Kiselev, Egor; Levitov, Leonid | This talk will discuss an approach relying on the DC-current-induced plasmonic Doppler effect, wherein downstream (upstream) propagation results in a blue (red) frequency shift of plasmon resonance, respectively. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1120 | Valley polarization braiding in strained graphene | Faria, Daiara; León, Carlos; R. F. Lima, Leandro; Latgé, Andrea; Sandler, Nancy | We show that in the quantum Hall regime, edge-like states in strained regions can be isolated in energy within Landau gaps. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1121 | Interacting Valley Chern Insulator in Moiré Systems | Wu, Xiaochuan; Xu, Yichen; Jian, Chao-Ming; Xu, Cenke | Here we demonstrate that the strongly interacting nature of the Moiré system reduces the classification of the valley Chern insulator from Z to Z_3, which is very different from the previously known examples of interaction reduced classification of topological insulators. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1122 | 30° Twisted Bilayer Graphene: Atomic Crystal Structure, Electronic Structure and Plasmonic Interactions | Dai, Zhongwei; Gao, Zhaoli; Eads, Calley; Tenney, Samuel; Johnson, Alan; Sadowski, Jerzy | 30° Twisted Bilayer Graphene: Atomic Crystal Structure, Electronic Structure and Plasmonic Interactions | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1123 | Filling-factor-dependence of the magnetoplasmon spectrum in graphene | Pack, Jordan; Russell, Jordan; Kapoor, Yashika; Balgley, Jesse; Ahlers, Jeff; Taniguchi, Takashi; Watanabe, Kenji; Henriksen, Erik | We present cyclotron resonance measurements of a graphite-gated, hexagonal boron nitride-encapsulated monolayer graphene device. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1124 | Band Structures and Localized Graphene Surface Plasmons with Periodic Charge Doping | Sammon, Michael; da Costa, Diego; Low, Tony | We present recent band structure calculations of artificial plasmonic crystals created by periodic doping. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1125 | Isotopic Effect of Carrier Relaxation in Graphene-hBN Heterostructures | Brasington, Alexandra; Edgar, James; Taniguchi, Takashi; Watanabe, Kenji; Sandhu, Arvinder; LeRoy, Brian | Theoretical studies have predicted a higher thermal conductivity with higher isotopic purity of hBN, due to reduced phonon scattering from isotopic defects. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1126 | Evidence for excitonic solid states in double layer graphene | Zeng, Yihang; Shi, Qianhui; Okounkova, Anna; Watanabe, Kenji; Taniguchi, Takashi; Li, Jia; Dean, Cory | In a double layer graphene system in the presence of magnetic field, upon decreasing the exciton density, we observe a sharp transition from an exciton superfluid to an exciton insulator, which shows insulating behavior in both charge transport and exciton transport measurement. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1127 | Tunable Graphene Split-Ring Resonators | Xing, Qiaoxia | Our study demonstrates an example of tunable multiple resonances based on graphene, and shed new light on its application in tunable high-frequency magnetic metasurfaces. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1128 | Light emission from vertically-grown quasi one-dimensional (1D) graphene nanostripes (GNSPs): Temperature and thickness independent ultra-long carrier lifetimes | Kishore Kumar, Deepan; Yeh, Nai-Chang | We have previously shown that our PECVD-grown, quasi-1D GNSPs exhibited perfect purity, high mobility [1] and strong broadband absorption [2]. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1129 | Valley density wave in graphite in the quantum limit | Pan, Zhiming; Shindou, Ryuichi | To uncover its microscopic origin, we construct an interacting electron model with a pair of electron band and hole band with the valley degree of freedom. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1130 | Generation and Detection of Valley Current in Single and Double Layered Graphene through the Electron-Phonon Interaction | Liu, Ankang; Finkelstein, Alexander | Our study proposes a new approach to manipulate the valley degrees of freedom in a pristine graphene or bilayer graphene sample without breaking the spatial inversion symmetry. | Session 82: Graphene: Valleytronics, Plasmonics, and Excitonics |
| 1131 | σ-Dimerization of organic radicals as mechanism for strongly hysteretic magneto-strutural phase transitions | Shatruk, Michael | In this contribution, we present a few systems of σ-dimerizing organic radicals, which provide examples of magneto-structural phase transitions that occur with a large thermal or photochemical hysteresis window. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1132 | Controlling the Kinetics of Spin Transitions through Heterostructure Elasticity | Cain, John; He, Wanhong; Zhang, Jerry; Talham, Daniel; Meisel, Mark | A theoretical electroelastic model was used to guide chemical alterations, allowing the mechanism to be probed experimentally with nuclear inelastic scattering. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1133 | Microscopic theory of spin-crossover phase transition and magnetoelectric coupling | Yu, Jie-Xiang; Chen, Dian-Teng; Gu, Jie; Chen, Jia; Jiang, Jun; Zhang, Long; Zhang, Xiaoguang; Zapf, Vivien; Cheng, Hai-Ping | By constructing a molecular-scale Hamiltonian, we discovered that the Jahn-Teller-induced inter-molecular strain interaction is the key factor in both the spin-crossover phase transition and magnetoelectric behaviors. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1134 | Observation of magnetoelectric, spin-lattice, and electron-phonon coupling in multiferroic (NH4)2[FeCl5(H2O)] | Hughey, Kendall; Nam, Jisoo; Lee, Minseong; Clune, Amanda; O’Neal, Kenneth; Blockmon, Avery; Tian, Wei; Ozerov, Mykhaylo; Zapf, Vivien; Lee, Jun Hee; Musfeldt, Janice | An analysis of combined techniques demonstrates that magneto-infrared is sensitive to both spin-phonon and electron-phonon coupling. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1135 | Magneto-optical Detection of Chirality Induced Spin Selectivity in 2D Chiral Hybrid Organic-Inorganic Perovskites | Huang, Zhengjie; Bloom, Brian; Georgieva, Zheni Nikolaeva; Vetter, Eric; Waldeck, David; Sun, Dali | This class of materials possesses both the implanted chirality and the excellent photovoltaic properties, making it a promising platform that bridges opto-spintronic studies and the CISS effect. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1136 | Theoretical design of two dimensional magnetoelectrics | Dong, Shuai; Lin, Ling-Fang | Theoretical design of two dimensional magnetoelectrics | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1137 | Gate tunability of 2D antiferromagnet magnon modes | Zhang, Xiao-Xiao; Li, Lizhong; Mak, Kin Fai; Shan, Jie | In this talk, we will show how we can access and probe the collective spin-wave excitations in an antiferromagnetic bilayer CrI3, which allows us to extract magnetic anisotropy and exchange energy. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1138 | 2D ferromagnetism in porphyrin-based semiconductors | Pimachev, Artem; Nielsen, Robert; Karanovich, Anri; Dahnovsky, Yuri | We describe the electronic, transport, optical, and magnetic properties of a π-conjugated micropore polymer with three iron atoms placed in the middle of an isolated pore. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1139 | Low-Damping Ferromagnetic Resonance in Electron-Beam Patterned, High-Q Vanadium Tetracyanoethylene Magnon Cavities | Franson, Andrew; Zhu, Na; Kurfman, Seth; Chilcote, Michael; Candido, Denis; Buchanan, Kristen; Flatté, Michael; Tang, Hong; Johnston-Halperin, Ezekiel | Here we present the deposition, patterning, and characterization of V[TCNE] x thin films with lateral dimensions ranging from 1 micron to several millimeters. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1140 | Two-dimensional magnetic coordination polymers: tuning the surface and the magnetic properties. | Mañas-Valero, Samuel; Coronado, Eugenio | Here [Nature Chemistry 10, 1001, 2018 and unpublished data] we present a pre-synthetic method based on coordination chemistry that affords the isolation of crystalline molecular monolayers. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1141 | A New Mercury-based Cation Radical Salt: α-(BEDT-TTF)2Hg(SeCN)2Cl | Henderson, Alyssa; Wei, Kaya; Van Tol, Johan; Richardson, Rachael; Thirunavukkuarasu, Komalavalli; Siegrist, Theo; Schlueter, John | Here we report the synthesis of the new α-(ET) 2Hg(SeCN) 2Cl salt. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1142 | Magneto-elastic coupling in multiferroic metal-organic framework [(CH3)2NH2]Co(HCOO)3 | Thirunavukkuarasu, Komalavalli; Richardson, Rachael; Lu, Zhengguang; Huang, Nan; Smirnov, Dmitry; Mandrus, David | We will discuss our investigations and its implications. | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1143 | High throughput ab initio screening for magnetic two dimensional materials | Jiang, Xue | In this talk, I will present our theoretical design on few new types of 2D ferromagnetic materials (MBene, CrSBr, K2N, and 2D MOFs). | Session 83: Magnetism and Magnetoelectrics: Molecule-Based and 2D Materials |
| 1144 | Filament dynamics in Mott insulators | Del Valle Granda, Javier; Vargas, Nicolas; Salev, Pavel; Wang, Paul; Lapa, Pavel; Kalcheim, Yoav; Adda, Coline; Lee, Minhan; Tesler, Federico; Fratino, Lorenzo; Rozenberg, Marcelo; Schuller, Ivan | We combine reflectivity and transport measurements to image the switching process with spatial and temporal resolution. | Session 84: Mott Physics Theory and Calculations |
| 1145 | The Mott transition as a topological phase transition | Wong, Patrick; Sen, Sudeshna; Mitchell, Andrew | We devise simple toy models for the auxiliary chains that capture the basic physics of the metallic and insulating Hubbard model phases, as well as in the scaling limit near the transition. | Session 84: Mott Physics Theory and Calculations |
| 1146 | Parting the Fermi Sea at the Mott Point: Dynamics of Correlated Electrons Reveals the Mechanism Underpinning Mottness | Tan, Yuting; Pustogow, Andrej; Rösslhuber, Roland; Uykur, Ece; Böhme, Annette; Löhle, Anja; Hübner, Ralph; Schlueter, John; Dobrosavljevic, Vladimir; Dressel, Martin | Here we map the genuine low-temperature Mott transition by applying dielectric spectroscopy under pressure to quantum-spin-liquid compounds. | Session 84: Mott Physics Theory and Calculations |
| 1147 | Kinetics of thermal Mott metal-insulator transition in the Hubbard model | Chern, Gia-Wei | We present the first-ever microscopic dynamical simulation of the temperature-controlled Mott metal-insulator transition in the Hubbard model. | Session 84: Mott Physics Theory and Calculations |
| 1148 | Nature of Mott transition in a hydrogen lattice | Lang, Zijian; Sen, Sudeshna; Dobrosavljevic, Vladimir; Ku, Wei | Our study challenges Mott’s original microscopic picture and reveal some key physics of metal-insulator transition in realistic materials. | Session 84: Mott Physics Theory and Calculations |
| 1149 | Mott Insulating States of Anisotropic SU(4) Dirac Fermions | Wang, Yu; Xu, Han; Wu, Congjun | We employ large-scale projector quantum Monte Carlo simulations to study the ground-state properties of the SU(4) Hubbard model on a square lattice with a staggered flux configuration. | Session 84: Mott Physics Theory and Calculations |
| 1150 | Pseudogap, van Hove Singularity, Maximum in Entropy and Specific Heat for Hole-Doped Mott Insulators | Reymbaut, Alexis; Bergeron, Simon; Garioud, R.; Thénault, M.; Charlebois, Maxime; Sémon, P.; Tremblay, Andre-Marie | We propose further experimental tests. | Session 84: Mott Physics Theory and Calculations |
| 1151 | Superconducting instability in an exactly solvable model of a doped Mott insulator | Phillips, Philip; Yeo, Luke; Huang, Edwin | Regarding the cuprate superconductors as doped Mott insulators, we solve a toy model that exhibits both Mottness and superconductivity. | Session 84: Mott Physics Theory and Calculations |
| 1152 | Intertwined Mott insulating behavior, magnetic quantum criticality, and superconductivity in a two-band Hubbard-like model: A Quantum Monte Carlo study | Christensen, Morten Holm; Wang, Xiaoyu; Schattner, Yoni; Berg, Erez; Fernandes, Rafael | Intertwined Mott insulating behavior, magnetic quantum criticality, and superconductivity in a two-band Hubbard-like model: A Quantum Monte Carlo study | Session 84: Mott Physics Theory and Calculations |
| 1153 | Excitons in Mott insulator | Huang, Tsung-Sheng; Baldwin, Christopher; Hafezi, Mohammad; Galitski, Victor | We start from the slave fermion Hubbard model with linear spin wave approximation on the bosonic spinons and obtain the dispersion of dressed doublons and holons using self-consistent Born approximation. | Session 84: Mott Physics Theory and Calculations |
| 1154 | Block-spiral magnetism of the low-dimensional orbital-selective Mott phase | Herbrych, Jacek; Heverhagen, Jonas; Alvarez, Gonzalo; Daghofer, Maria; Moreo, Adriana; Dagotto, Elbio | Here, we show that competing energy scales present in the low-dimensional orbital-selective Mott phase (OSMP) induce an exotic magnetic order, never reported before. | Session 84: Mott Physics Theory and Calculations |
| 1155 | Local structural study of novel mott-insulating cousins of the iron pnictides | Karki, Bhupendra; Alfailakawi, Alaa; Frandsen, Benjamin; Fang, Minghu; Everett, M. S.; Neuefeind, Joerg; Freelon, Byron | We describe the structural properties of the La 2O 2Fe 2O M2 ( M = S, Se), by using pair distribution function (PDF) analysis and Rietveld refinement methods applied to neutron diffraction data. | Session 84: Mott Physics Theory and Calculations |
| 1156 | Pseudogap transition within the superconducting phase in the three-band Hubbard model | Dash, Sidhartha; Senechal, David | We use cluster dynamical mean field theory on a three-band Hubbard model for high-T c superconductors to study the superconducting phase at zero temperature, obtained when doping the charge transfer insulator, for several values of U. | Session 84: Mott Physics Theory and Calculations |
| 1157 | Extending the Gutzwiller approximation to intersite interactions | Goldstein, Garry; Kotliar, Gabriel; Lanata, Nicola | We apply our theory to the single band t-J model and the extended single band Hubbard model. | Session 84: Mott Physics Theory and Calculations |
| 1158 | Dynamical t/U Expansion of the Doped Hubbard Model | Ding, Wenxin; Yu, Rong | We construct a new U(1) slave spin representation for the single-band Hubbard model in the large-U limit. | Session 84: Mott Physics Theory and Calculations |
| 1159 | Strain induced semimetal-insulator transition in monolayer 1T’-WTe2 | Chenxiao, Zhao; Jia, Jinfeng; Liu, Junwei | Through a combined in-situ scanning tunneling microscopy/spectroscopy (STM/STS) and Density functional theory (DFT) study, we demonstrate that strain can effectively manipulate the band structure of monolayer 1T’-WTe 2 to realize a phase transition from a semimetal to an insulator upon application of a compressive strain along a axis or a tensile strain along b axis. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1160 | Finite-temperature spectroscopy in dirty helical Luttinger liquids | Hsieh, Tzu-Chi; Chou, Yang-Zhi; Radzihovsky, Leo | I will discuss a theory of finite-temperature momentum-resolved tunneling spectroscopy (MRTS) for disordered two-dimensional INTERACTING topological-insulator edges. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1161 | Atomically resolved study of the effect of back-gating on the band structure in monolayer WTe2 | Maximenko, Yulia; Chang, Yueqing; Wagner, Lucas; Madhavan, Vidya | Here, we report the first STM study of monolayer 1T’-WTe 2 with in-situ tuning of carrier concentration using back-gating. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1162 | Resolving the topological classification of bismuth with topological defects | Nayak, Abhay; Reiner, Jonathan; Queiroz, Raquel; Fu, Huixia; Shekhar, Chandra; Yan, Binghai; Felser, Claudia; Avraham, Nurit; Beidenkopf, Haim | Bulk boundary correspondence has been the cornerstone in the study of topological quantum materials. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1163 | Domain walls as possible realization of edge state coupling in a quantum spin Hall insulator | Stühler, Raul; Kowalewski, André; Reis, Felix; Weis, Johannes; Schaefer, Joerg; Li, Gang; Hanke, Werner; Jungblut, Dimitri; Scharf, Benedikt; Dominguez Tijero, Fernando; Hankiewicz, Ewelina; Claessen, Ralph | We discuss our findings as possible quantum interference between coupled helical edge states that are formed in the vicinity of a DB. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1164 | Drumhead surface state in ZrSiTe probed by scanning tunneling microscopy | Stuart, Brandon; Choi, Seokhwan; Kim, Jisun; Queiroz, Raquel; Muechler, Lukas; Schoop, Leslie; Bonn, Douglas; Burke, Sarah | Here, we show the first observed signature of electronic scattering within the drumhead state using low-temperature STM and QPI measurements. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1165 | Symmetry dictated grain boundary state in a two-dimensional topological insulator MoTe2 | Kim, Hyo Won; Kang, Seoung-Hun; Kim, Hyun-Jung; Chae, Kisung; Cho, Suyeon; Ko, Wonhee; Jeon, Sangjun; Kim, Sung Wng; Kwon, Young-Kyun; Son, Young-Woo | Here, we present the first direct evidence of a symmetry-enforced Dirac type metallic state along a GB in 1T’-MoTe 2, a prototypical 2D TI. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1166 | Scanning Tunneling Microscopy Imaging of Electronic Waves on the Surface of Molecular Beam Epitaxy Grown Ag2Se | Daneshmandi, Samira; Lyu, Yanfeng; Yuan, Hanming; Chu, Ching (Paul) | Here, we report the synthesis of epitaxial Ag 2Se nanostructures using molecular beam epitaxy (MBE) method. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1167 | Perfect Transmission of Topological Surface States Through Surface Barriers on Sb(111)* | Ge, Jianfeng; Gu, Kaiyuan; Mahadevan, Aditya; Zhang, Haimei; Guo, Jiaxuan; Tang, Hao; Hoffman, Jennifer | We use scanning tunneling microscopy and spectroscopy to investigate Sb(111) surface, which exhibits novel monolayer step edges. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1168 | Quasi-particle interference and confinement effects in a correlated Rashba spin-orbit split 2D electron gas | Yim, Chi Ming; Chakraborti, Dibyashree; Rhodes, Luke; Khim, Seunghyun; Mackenzie, Andrew; Wahl, Peter | Here, we report a scanning tunnelling microscopy, quasiparticle interference (QPI) study of the two-dimensional electron gas (2DEG) at the surface of PdCoO 2, a correlated oxide system reported to exhibit giant Rashba-like spin-splitting [1] Our QPI data reveal a complex quasiparticle scattering pattern which, in particular, consists of a rounded-hexagon shaped, hole-like scattering band that disperses with averaged effective masses of ~ -13.0 m e and ~ -11.1 m e along the G-K and G-M directions, respectively. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1169 | Observation of backscattering induced by magnetism in the topological hinge state of bismuth | Jaeck, Berthold; Xie, Yonglong; Bernevig, Andrei; Yazdani, Ali | We have investigated the effects of time-reversal symmetry breaking on the topological hinge state of bismuth. | Session 85: Scanning Tunneling Microscopy of Topological Materials |
| 1170 | DMRG Approach to Optimizing Two-Dimensional Tensor Networks | Hyatt, Katharine; Stoudenmire, Miles | We present results for several 2D spin models and discuss possible extensions and applications. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1171 | Diagrammatic Monte Carlo for the Hubbard Model: Recent developments | Ferrero, Michel; Simkovic, Fedor; ROSSI, RICCARDO | In this talk, I will present recent developments of the diagrammatic Monte Carlo method applied to the Hubbard model. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1172 | Differentiable Programming Tensor Networks | Liao, Hai-Jun; Liu, Jin-Guo; Wang, Lei; Xiang, Tao | We present theory and practice of programming tensor network algorithms in a fully differentiable way. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1173 | Simulating open quantum many-body systems using matrix product state purifications | Zhang, Yikang; Zhang, Xin; Barthel, Thomas | We introduce a new algorithm based on matrix product state purifications to simulate open many-body systems. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1174 | Compressing Infinite Matrix Product Operators with an Application To Twisted Bilayer Graphene | Parker, Daniel; Cao, Xiangyu; Soejima, Tomohiro; Zaletel, Michael | We present a new method for compressing matrix product operators (MPOs) which represent sums of local terms, such as Hamiltonians. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1175 | Embedding via the Exact Factorization Approach | Lacombe, Lionel; Maitra, Neepa | We present a quantum electronic embedding method derived from the exact factorization approach to calculate static properties of a many-electron system. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1176 | Putting modern many-body methods to the test: the two-dimensional Hubbard model at weak coupling | Schaefer, Thomas; Wentzell, Nils; Simkovic, Fedor; He, Yuan-Yao; Hille, Cornelia; Eckhardt, Christian; Arzhang, Behnam; Harkov, Viktor; Le Régent, François-Marie; Kirsch, Alfred; Wang, Yan; Kim, Aaram; Kozik, Evgeny; Stepanov, Evgeny; Kauch, Anna; Andergassen, Sabine; LeBlanc, James; Zhang, Shiwei; Tremblay, Andre-Marie; Ferrero, Michel; Parcollet, Olivier; Georges, Antoine | We provide a detailed synopsis and comparison of a comprehensive set of state-of-the art many body techniques for the weak-coupling regime of the two dimensional half-filled Hubbard model on a square lattice. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1177 | A time-dependent tunneling approach to RIXS and other core-hole spectroscopies | Feiguin, Adrian; Zawadzki, Krissia; Nocera, Alberto | We introduce a numerical approach to calculate the Resonant Inelastic X-Ray Scattering (RIXS) in strongly correlated systems. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1178 | A time and momentum resolved tunneling spectroscopy approach to non-equilibrium phenomena in correlated systems | Zawadzki, Krissia; Feiguin, Adrian | We introduce a numerical method to calculate the spectral density of correlated systems using a tunneling approach efficiently implemented through the time-dependent Density Matrix Renormalization-Group (tDMRG). | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1179 | Effect of Electron-Phonon Interactions in the Holstein Model on a Staggered-Flux Square Lattice | Zhang, Yuxi; Scalettar, Richard; Guo, Huaiming | Here, we use the unbiased determinant Quantum Monte Carlo (DQMC) method to study the Holstein model on a half-filled staggered-flux square lattice, and compare with the results on the honeycomb lattice. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1180 | The effect of disorder on the phase diagrams of hard-core lattice bosons with cavity-mediated long-range and nearest-neighbor interactions | Zhang, Chao; Rieger, Heiko | We use quantum Monte Carlo simulations with the worm algorithm to study the phase diagram of a two-dimensional Bose-Hubbard model with cavity-mediated long-range interactions and uncorrelated disorder in the hard-core limit. | Session 86: Precision many-body physics: Novel methods and algorithms |
| 1181 | Fully tunable Magic Angle Twisted Bilayer Graphene Josephson Junction | Rodan-Legrain, Daniel; Cao, Yuan; Park, Jeong Min; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo | In this work, we exploit such tunability to create a fully tunable 2D Josephson Junction allowing to independently control the electronic state of the weak link and the rest of the junction via multiple electrostatic gates. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1182 | Chiral twist on the high-Tc phase diagram in moiré heterostructures | Lin, Yu-Ping; Nandkishore, Rahul | We show that the large orbital degeneracy inherent in moiré heterostructures naturally gives rise to a ‘high-T c’ like phase diagram with a chiral twist – wherein an exotic quantum anomalous Hall insulator is flanked by chiral d+id superconducting domes. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1183 | Pairing in twisted double-bilayer graphene and related moiré superlattice systems | Samajdar, Rhine; Scheurer, Mathias | We present a systematic classification and analysis of possible pairing instabilities in graphene-based moiré superlattices. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1184 | Twist angle homogeneity in twisted bilayer graphene devices studied with STM | Benschop, Tjerk; Stalman, Vincent; Wijgman, Rosanne; Leeuwenhoek, Maarten; Stepanov, Petr; Lu, Xiaobo; Efetov, Dmitri; Allan, Milan | In this talk, I present quantitative results of the homogeneity on different length scales. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1185 | Tunable electron interactions in moiré graphene: extinction of Mott order in the presence of screening | Fahimniya, Ali; Efetov, Dmitri; Stepanov, Petr; Levitov, Leonid | To that end, we explore the robustness of the Mott order in the presence of a screened e-e interaction, as is the case in currently studied heterostructures comprised of TBG, hexagonal boron nitride (hBN), and graphite layers. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1186 | Tunable bandwidths and gaps in twisted double bilayer graphene system on the verge of correlations | Adak, Pratap; Sinha, Subhajit; Ghorai, Unmesh; Sangani, L. D. Varma; Watanabe, Kenji; Taniguchi, Takashi; Sensarma, Rajdeep; Deshmukh, Mandar | Specifically, we will discuss how the bandwidth of the bands can be tuned electrically and how an electron-hole asymmetric model can explain some observations. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1187 | Observation of charging peaks near the flat band in magic-angle twisted bilayer Graphene | Tilak, Nikhil; Lai, Xinyuan; Jiang, Yuhang; Mao, Jinhai; Xu, Mingyu; Ribeiro, Raquel; Canfield, Paul; Andrei, Eva | Here, using Low temperature STM/STS measurements, we report the observation of sharp charging peaks which appear in the LDOS as the Fermi level is tuned close to the edges of the flat band. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1188 | Experimental Observation of Tunable Chern insulator and Ferromagnetism in ABC-Trilayer Graphene on hBN Moiré Superlattice | Chen, Guorui; Sharpe, Aaron; Fox, Eli; Zhang, Yahui; Wang, Shaoxin; Jiang, Lili; Lv, Bosai; Li, Hongyuan; Watanabe, Kenji; Taniguchi, Takashi; Shi, Zhiwen; Todadri, Senthil; Goldhaber-Gordon, David; Zhang, Yuanbo; Wang, Feng | We show that reversing the direction of the applied vertical electric field switches TLG/hBN’s moiré minibands between zero and finite Chern numbers, as revealed by dramatic changes in magneto-transport behavior. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1189 | Spin-triplet superconductivity and ferromagnetism in moire systems: A case study for twisted double bilayer graphene | Hsu, Yi-Ting; Wu, Fengcheng | We show that ferromagnetism and spin-triplet pairing can naturally be the dominant instabilities in such systems as a general consequence of the valley-dependent van Hove physics when the nesting is weak. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1190 | Ferromagnetism in twisted bilayer graphene | Sharpe, Aaron; Fox, Eli; Barnard, Arthur; Finney, Joe; Watanabe, Kenji; Taniguchi, Takashi; Kastner, Marc; Goldhaber-Gordon, David | Here we present evidence that near three-quarters (3/4) filling of the conduction miniband these enhanced interactions drive the twisted bilayer graphene into a ferromagnetic state. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1191 | Ferromagnetism in narrow bands of moiré superlattices | Repellin, Cecile; Zhihuan, Dong; Zhang, Yahui; Todadri, Senthil | In the limit of a perfectly flat band, we present analytical arguments in favor of the ferromagnetic state substantiated by numerical calculations. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1192 | Transport experiments in twisted (double) bilayer graphene | Rickhaus, Peter; De Vries, Folkert; Portoles, Elias; Zheng, Giulia; Liu, Ming-Hao; Lado, Jose; Wallbank, John; Slizovskiy, Sergey; Kurpas, Marcin; Pisoni, Riccardo; Overweg, Hiske; Lee, Yongjin; Kurzmann, Annika; Eich, Marius; Tong, Chuyao; Garreis, Rebekka; Gold, Carolin; Masseroni, Michele; Richter, Klaus; Watanabe, Kenji; Taniguchi, Takashi; Ihn, Thomas; Ensslin, Klaus | We study signatures in electronic transport in twisted (double) bilayer graphene. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1193 | Colossal mid-infrared photoresponse in small-twist-angle bilayer graphene | Deng, Bingchen; Ma, Chao; Wang, Qiyue; Yuan, Shaofan; Watanabe, Kenji; Taniguchi, Takashi; Zhang, Fan; Xia, Fengnian | Here we demonstrate the colossal and gate-tunable mid-infrared (5 ~ 12 μm) photoresponse leveraging the enhanced DOS and the emergence of superlattice-induced bandgaps. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1194 | Nano-photocurrent mapping of twisted bilayer graphene | Sunku, Sai; McLeod, Alexander; Stauber, Tobias; Yoo, Hyobin; Halbertal, Dorri; Ni, GuangXin; Sternbach, Aaron; Jiang, Bor-Yuan; Taniguchi, Takashi; Watanabe, Kenji; Kim, Philip; Fogler, Michael; Basov, Dmitri | We report a combined nano-photocurrent and infrared nanoscopy study of twisted bilayer graphene. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1195 | Nano-optical study of Moire superlattice domains in twisted graphene heterostructures | Halbertal, Dorri; Finney, Nathan; Sunku, Sai; Chen, Shaowen; Zhang, Charles; Curreli, Nicola; Yankowitz, Matthew; McLeod, Alexander; Ni, GuangXin; Kerelsky, Alexander; Verdu, Carmen; McGilly, Leo; Narayan, Abhay; Dean, Cory; Hone, James; Basov, Dmitri | In this work we used several nano-optical techniques to study the formation and reconstruction of domain walls in several twisted graphene heterostructures. | Session 87: Graphene: Electronic Structure and Interactions: Moire patterns |
| 1196 | Gate-Dependent Transport in Multi-Terminal Josephson Junctions | Graziano, Gino; Lee, Joon Sue; Harrington, Sean; Pendharkar, Mihir; Palmstrom, Chris; Pribiag, Vlad | Here we study the effects on transport of several top-gating arrangements on multi-terminal Josephson junctions with many conducting modes based on an InAs 2DEG proximitized with an epitaxial aluminum layer and many conducting modes. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1197 | Gate tunable multi-terminal Josephson effect | Pankratova, Natalia; Lee, Hanho; Kuzmin, Roman; Wickramasinghe, Kaushini; Vavilov, Maxim; Shabani, Javad; Manucharyan, Vladimir | We report the measurement of non-trivial CCC shapes as a function of gate voltage and magnetic field in hybrid semiconductor/superconductor (InAs/Al) multi-terminal JJs. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1198 | Unconventional Superconductivity in monolayer Transition Metal Dichalcogenides via proximity | Aji, Vivek; Dawson, Robert | In this talk we report on the nature of the induced superconducting state when coupled to a conventional superconductor. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1199 | Induced superconductivity and multiple Andreev reflections in multilayer WTe2 Josephson junctions | Zhang, Xurui; Shi, Xiaoyan | We report the observations of the proximity effect induced superconductivity revealed by magnetoresistance (MR) and I-V measurements. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1200 | Proximity induced Superconductivity in low carrier density BixSb2-xTe3 | Bai, Yang; song, xiangyu; Yue, Guang; Bezryadin, Alexey; Van Harlingen, Dale; Eckstein, James | To study proximity effect coupling into only the topological surface states we used thin films of the alloy Bi xSb 2-xTe 3. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1201 | Superconducting Proximity Effect in Magnetically-Doped Topological Insulators using Bulk Single Crystals | Yano, Rikizo; Tsumura, Kohei; Hirose, Hishiro; Yamamoto, Masahiro; Kudriashov, Andrei; Koyanagi, Masao; Kashiwaya, Hiromi; Asano, Yasuhiro; Stolyarov, Vasily; Sasagawa, Takao; Kashiwaya, Satoshi | In this study, we prepared another magnetic TI with a high bulk resistivity and fabricated its Josephson junctions without edge contacts. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1202 | Compensated CoGd Ferrimagnets in Magnetic Josephson Junctions | Madden, Alexander; Willard, Joshua; Loloee, Reza; Birge, Norman | As the compensation point can vary significantly as a function of temperature and thickness, we present SQUID VSM data on thin films taken at cryogenic temperatures. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1203 | Superconducting pairing symmetry and spin-orbit coupling in proximitized graphene | Alsharari, Abdulrhman; Ulloa, Sergio | We study the effect of different superconducting symmetry pairings over a range of chemical potential. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1204 | Chaos and Chimera in Hysteretic RF SQUID Metamaterials | Cai, Jingnan; Anlage, Steven | We have built new arrays of RF SQUID meta-atoms in the hysteretic regime to explore their interesting properties with the ultimate goal of extending the resonance frequency tunability. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1205 | Josephson current mediated by odd-frequency equal-spin triplet pairing on the surface of Weyl nodal loop semimetals | Dutta, Paramita; Black-Schaffer, Annica | We explore proximity-induced pairing on the surface of a Weyl nodal loop semimetal (WNLS) sandwiched between two conventional spin-singlet s-wave superconductors in a Josephson junction set-up. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1206 | Critical Current Decay in Josephson Junctions Containing Antiferromagnetic Ni41Mn59 | Klaes, Robert; Loloee, Reza; Birge, Norman | We report on the fabrication and measurement of antiferromagnetic (AF) S/N/AF/N/S Josephson junctions where Ni 41Mn 59 is used as the AF layer, Nb as the S layer, and Cu as the N layer. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1207 | Magneto-transport of electrons in near surface InAs quantum wells in contact with NbTiN | Hatefipour, Mehdi; Mayer, William; Goss, Noah; Strickland, William; Yuan, Joseph; Wickramasinghe, Kaushini; Sardashti, Kasra; Lu, Tzu-Ming; Shabani, Javad | In this work, we study the proximity effect by monitoring the current flow along the superconductor-semiconductor interface. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1208 | Superconductor-Semiconductor Devices with 2D Holes in Germanium | Aggarwal, Kushagra; Hofmann, Andrea; Jirovec, Daniel; Prieto Gonzalez, Ivan; Sammak, Amir; Veldhorst, Menno; Scappucci, Giordano; Katsaros, Georgios | Here, we study proximity induced superconductivity in germanium quantum wells coupled to aluminium. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1209 | Transport properties of ultra-scaled Ge/Si core/shell nanowires with highly transparent Al contacts. | Delaforce, Jovian; Sistani, Masiar; Kramer, Roman; Roch, Nicolas; Luong, Minh-Anh; Den-Hertog, Martien; Robin, Eric; Smoliner, Juergen; Yao, Jun; Lieber, Charles; Naud, Cécile; Lugstein, Alois; Buisson, Olivier | We will present results of temperature dependent DC transport measurements on ultra-scaled devices. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1210 | Gate-tunable proximity effect in epitaxial Al-InAs Josephson junctions using hBN gate dielectric | Thompson, Joshua; Mayer, William; Barati, Fatemeh; Yuan, Joseph; Wickramasinghe, Kaushini; Sardashti, Kasra; Taniguchi, Takashi; Watanabe, Kenji; Shabani, Javad; Churchill, Hugh | We report the fabrication and measurement of gate-tunable Al-InAs Josephson junctions in which the gate dielectric in contact with the InAs was mechanically exfoliated hexagonal boron nitride (hBN). | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1211 | THz emission characteristics from mesa arrays of Bi2Sr2CaCu2O8+δ single crystals | Kashiwagi, Takanari; Imai, Takayuki; Nakagawa, Syungo; Kuwano, Genki; Ono, Yukino; Shizu, Tomoyuki; Kaneko, Youta; Kusunose, Shinji; Nakayama, Mayu; Kim, Jeonghyuk; Tsujimoto, Manabu; Yamamoto, Takashi; Minami, Hidetoshi; Mochiku, Takashi; Nakao, Hironori; Eisaki, Hiroshi; Ishida, Shigeyuki; Mawatari, Yasunori; Hasegawa, Yukio; Klemm, Richard; Kadowaki, Kazuo | We have developed stand-alone mesa structures (SAMs) of Bi2212 single crystals sandwiched by good thermal conducting sapphire substrates to reduce self-heating effects. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1212 | Mesa sidewall effect on coherent terahertz radiation from Bi2Sr2CaCu2O8+δ intrinsic Josephson junctions | Kuwano, Genki; Kaneko, Youta; Nagayama, Kanae; Imai, Takayuki; Ono, Yukino; Kusunose, Shinji; Kashiwagi, Takanari; Minami, Hidetoshi; Kadowaki, Kazuo; Tsujimoto, Manabu | In this talk, we will present the details of the fabrication process and experimental results and will discuss the role of the mesa sidewalls on the coherent radiation. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1213 | Electromagnetic field analysis of coherent terahertz radiation emitted from stacks of intrinsic Josephson junctions of BSCCO with microstrip antennas | Tsujimoto, Manabu; Kaneko, Youta; Kuwano, Genki; Nagayama, Kanae; Kusunose, Shinji; Imai, Takayuki; Ono, Yukino; Kashiwagi, Takanari; Minami, Hidetoshi; Kadowaki, Kazuo | In this talk, we will discuss the characteristic radiation behavior associated with the bath and local temperatures and variation in polarization characteristics depending on the bias point. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1214 | THz emission peak at low voltage bias from stacked intrinsic Josephson junction Bi2Sr2CaCu2O8 terahertz sources | Kihlstrom, Karen; Benseman, Timothy; Koshelev, Alexei; Welp, Ulrich; Kwok, Wai-Kwong; Kadowaki, Kazuo | We will discuss possible mechanisms for the unusual emission mode, together with future directions of related research. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1215 | Stacked intrinsic Josephson junction Bi2Sr2CaCu2O8 terahertz sources: Design issues for achieving high power output close to Tc | Benseman, Timothy; Kihlstrom, Karen; Koshelev, Alexei; Welp, Ulrich; Kwok, Wai-Kwong; Kadowaki, Kazuo | Here we report generation of 0.15 milliwatts of coherent emission power at 0.5 THz, at a bath temperature of 77 Kelvin. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1216 | Demonstrating phase control in spin-triplet ferromagnetic Josephson junctions | Aguilar, Victor; Loloee, Reza; Pratt, William; Birge, Norman | Both spin-singlet and spin-triplet supercurrents are being studied by our group for this purpose. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1217 | Ferromagnetic Josephson junctions with perpendicular magnetic anisotropy | Satchell, Nathan; Shepley, Philippa; Burnell, Gavin | To solve these issues, here we explore the use of ferromagnets with perpendicular magnetic anisotropy. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1218 | High Field Superconductivity and Magnetic Moment Enhancement in Proximity Exchange Coupled GdN/NbN Nano-bridges | Rocci, Mirko; Suri, Dhavala; Nemes, Norbert; Martinez, Jose; Garcia-Hernandez, Mar; Moodera, Jagadeesh | We perform detailed investigations on GdN (FI) and NbN (SC) interface via magneto-transport properties of GdN/NbN-based nano-bridges and thin film heterostructures. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1219 | Optimizing supercurrent transmission and magnetic behavior in ferromagnetic Josephson junctions | Mishra, Swapna Sindhu; Klaes, Robert; Loloee, Reza; Birge, Norman | We present work on trying to improve the efficiency by using thin layers of Ni “dusting” around the NiFe free layer to further increase the transmission of supercurrent through these junctions. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1220 | Observation of Edge States in Multilayer WTe2 | Huang, Ce; Narayan, Awadhesh; Zhang, Enze; Liu, Shanshan; yi, Changjiang; Shi, Youguo; Sanvito, Stefano; Xiu, Faxian | Here, we report the signatures of the edge states by superconducting quantum interference measurements in multilayer WTe2 Josephson junctions and we directly map the localized supercurrent. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1221 | An Alternate Scheme to Mode-Lock Quantum Phase Slips. | Dassonneville, Bastien; Aumentado, Jose | To address this problem, we consider alternative designs that relax the constraint on the resistance and instead rely on the feedback provided by a high-impedance resonator. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1222 | Exploring parity transitions of Majorana bound states in S-TI-S lateral Josephson junctions | Yue, Guang; Yao, Xiong; Jain, Deepti; Moon, Jisoo; Oh, Seongshik; Bezryadin, Alexey; Van Harlingen, Dale | In this talk, we report progress on experiments designed to probe the parity states of MBS pairs and the transitions between them via measurements of the critical current distribution and supercurrent fluctuations. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1223 | Topological Josephson Junctions in Corbino geometry | Sundaresh, Ananthesh; Lindeman, Tyler; Gardner, Geoff; Gronin, Sergei; Manfra, Michael; Rokhinson, Leonid | In this work we report experimental investigation of Josephson junctions in the Corbino geometry fabricated from InAs/Al heterostructures. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1224 | Engineering the spin-orbit interaction in InAs-based quantum wells for superconductor-semiconductor hybrid structures | Prager, Michael; Speckner, Martin; Schmidt, Jay; Schuh, Dieter; Bougeard, Dominique | In this work, we present a systematic study of two-dimensional electron gases (2DEGs) realized in strongly asymmetric InAs/InGaAs/InAlAs quantum well layouts. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1225 | Anomalously large second Josephson harmonic in quantum well-based junctions | Zarassi, Azarin; Jarjat, Lucas; van de Sande, Vince; Pendharkar, Mihir; Lee, Joon Sue; McFadden, Anthony; Harrington, Sean; Gazibegovic, Sasa; Badawy, Ghada; Op het Veld, Roy; Hocevar, Moira; Tan, Susheng; Bakkers, Erik; Palmstrom, Chris; Frolov, Sergey | We investigate InAs quantum well JJs with epitaxial Al contacts. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1226 | Novel superconducting effects in multiterminal Josephson junctions, Part 1 | Seredinski, Andrew; Arnault, Ethan; Larson, Trevyn; Zhao, Lingfei; Li, Hengming; Watanabe, Kenji; Taniguchi, Takashi; Amet, Francois; Borzenets, Ivan; Finkelstein, Gleb | We have previously found that the coupling between different pairs of contacts results in nontrivial distribution of supercurrent across the device. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1227 | Novel superconducting effects in multiterminal Josephson junctions, Part 2 | Arnault, Ethan; Seredinski, Andrew; Larson, Trevyn; Zhao, Lingfei; Li, Hengming; Watanabe, Kenji; Taniguchi, Takashi; Amet, Francois; Borzenets, Ivan; Finkelstein, Gleb | We have previously found that the coupling between different pairs of contacts results in nontrivial distribution of supercurrent across the device. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1228 | Radio-frequency response of a graphene Josephson junction based superconducting oscillator circuit | Ghatak, Subhamoy; Sarkar, Joydip; Adak, Pratap; Datta, Biswajit; MANDAL, SUPRIYA; Kapoor, Lucky; Salunkhe, Kishor; Kundu, Suman; Vijay, R; Deshmukh, Mandar | We have devised a superconducting oscillator circuit, employing graphene-based Josephson junction. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1229 | Gate Controlled Anomalous Phase Shift in Al/InAs Josephson Junctions | Mayer, William; Dartiailh, Matthieu; Yuan, Joseph; Wickramasinghe, Kaushini; Rossi, Enrico; Shabani, Javad | We report the observation of a tunable anomalous Josephson effect in Al/InAs Josephson junctions measured via a superconducting quantum interference device. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1230 | Superconductivity induced in InSb nanowires from new thin film superconductors | Zhang, Bomin; Pendharkar, Mihir; Zhang, Po; Wu, Hao; Zarassi, Azarin; dempsey, connor; Lee, Joon Sue; Harrington, Sean; Badawy, Ghada; Gazibegovic, Sasa; Op het Veld, Roy; Jung, Jason; Verheijen, Marcel; Hocevar, Moira; Bakkers, Erik; Palmstrom, Chris; Frolov, Sergey | Previous research on superconductor-semiconductor nanowire devices focused heavily on aluminum and niobium alloys. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1231 | Magnetic field and flux driven 0-π phase transition in a spinful Josephson junction | Whiticar, Alexander; Fornieri, Antonio; Passmann, Felix; Banerjee, Abhishek; Drachmann, Asbjorn; Wang, Tiantian; Thomas, Candice; Gronin, Sergei; Gardner, Geoff; Manfra, Michael; Marcus, Charles | We identify a gate-voltage-induced transition from singlet to doublet ground state, where the Andreev spectrum develops a π-phase shift. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1232 | A Mesoscopic Spectrometer Based on the Josephson Effect* | Griesmar, Joël; Lafont, Fabien; Rodriguez, Ramiro; Benzoni, Vincent; Peyruchat, Léo; Smirr, Jean-Loup; Girit, Caglar | We demonstrate this spectroscopy technique by detecting the plasma frequency, near 100 GHz, of an RF-SQUID, fabricated both on- and off-chip, inductively coupled to the spectrometer. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1233 | Graphene Josephson junctions in high in-plane magnetic field | Dvir, Tom; Zalic, Ayelet; Watanabe, Kenji; Taniguchi, Takashi; Steinberg, Hadar | We show that such JJs, NbSe 2- graphene-NbSe 2, are highly transparent, and survive to in-plane fields up-to 8T. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1234 | Interference of chiral Andreev edge states in a multi-terminal Josephson junction | Zhao, Lingfei; Arnault, Ethan; Seredinski, Andrew; Larson, Trevyn; Li, Hengming; Watanabe, Kenji; Taniguchi, Takashi; Amet, Francois; Finkelstein, Gleb | We study the interference effects of chiral Andreev edge states (CAES) in a multiterminal Josephson junction operated in the quantum Hall regime. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1235 | Proximity effects in superconducting heterostructures | Ujfalussy, Balazs; Csire, Gabor; Park, Kyungwha | We briefly describe the methodology which allows for a material-specific calculation of the Andreev band structure. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1236 | Visibility of a topological qubit quantum dot measurement | Khindanov, Aleksei; Pikulin, Dmitry | Here, using perturbation theory we derive expression for Josephson energy in this system, with a particular emphasis on a term associated with a coupling of the QD to quasiparticle continuums in each TS, arising in the fourth order. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1237 | Domain wall based spin-triplet Josephson junction and SQUID | Bhatia, Ekta; Srivastava, Anand; Stoneman, James; Stelmashenko, Nadia; Barber, Zoe; Robinson, Jason; Senapati, Kartik | In this report, by pinning a magnetic domain wall at the barrier of a nanoscale S/F/S planar junction, we have been able to demonstrate the predicted long-range triplet supercurrent due to a domain wall. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1238 | Unconventional magnetic flux response of Josephson junctions with a weak link made from alternating normal and ferromagnetic interlayers | Nevirkovets, Ivan; Belogolovskii, Mikhail | We present the first systematic study of critical current-vs-external magnetic flux dependences in Josephson junctions with a weak link formed by alternating normal (N=Al) and ferromagnetic (F=Ni or Py) nominally identical nm-thick films coupled to superconducting (S=Nb) electrodes. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1239 | Enhanced triplet pairing in magnetic junctions with s-wave superconductors | Shen, Chenghao; Vezin, Thomas; Han, Jong E; Zutic, Igor | Instead, we predict that the interplay of interfacial spin-orbit coupling and the barrier strength in simple magnetic junctions with s-wave superconductors can lead to nearly complete spin-triplet superconducting proximity effects when magnets have only a small spin polarization[4]. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1240 | Measurement of Current-Phase Relationship in Josephson Junctions with NbxSi1-x Barriers | Thompson, Miranda; Fox, Anna; Castellanos-Beltran, Manuel; Butler, Grace; Schneider, Michael; Dresselhaus, Paul; Benz, Samuel | We constructed a superconducting SQUID-sensor-based circuit to extract their current-phase relationships. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1241 | Search for Majorana bound states in niobium-Bi2Se3-niobium arrays and junctions | Song, Xiangyu; Bai, Yang; Yue, Guang; Eckstein, James; Van Harlingen, Dale; Bezryadin, Alexey | We will discuss extensive measurement performed on niobium-Bi2Se3 hybrid structures in microwave resonators, which include kinetic inductance vs. magnetic field and the quality factor vs. magnetic field measurements. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1242 | Growth and Characterization of (BixSb1-x)2Te3 /MgB2 heterojunctions | Cheng, Long; Li, Lin; Zhang, Hui; Ma, Xiaodong; Nichols, George; Sprenger, Peter; Langenberg, Deler; Cory, David; Miao, Guoxing | Here we report the growth of epitaxial (Bi xSb 1-x) 2Te 3 (BST) thin film on MgB 2 and study the vertical Josephson junction based on BST/MgB 2. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1243 | Shapiro steps as a thermal probe in superconducting nanobridges | Shelly, Connor; See, Patrick; Rungger, Ivan; williams, jonathan | We present measurements of microwave-induced Shapiro steps in a superconducting nanobridge weak link in the dissipative branch of a hysteretic current-voltage characteristic. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1244 | Towards Perfect Andreev Reflection in Graphene-NbSe2 planar Josephson Junctions | Williams, Adam; Banerjee, Mitali; Dean, Cory | In this talk I will present newly developed techniques to assemble NbSe 2-graphene Josephson junctions such that we simultaneously improve the junction transparency while also maintaining high mobility in the graphene channel. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1245 | Tunneling spectroscopy of c-axis epitaxial cuprate junctions | Natelson, Douglas; Zhou, Panpan; Chen, Liyang; Sochnikov, Ilya; Wu, Tsz Chun; Foster, Matthew; Bollinger, Anthony; He, Xi; Bozovic, Ivan | We report tunneling spectroscopy measurements, over a broad temperature and bias range, in c-axis La 2−xSr xCuO 4/La 2CuO 4/La 2−xSr xCuO 4 heterostructures grown via atomic layer-by-layer molecular beam epitaxy. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1246 | Scanning Tunneling Spectroscopy Study of the Superconducting Proximity Effect in (110)-oriented Manganite/Cuprate and Nickelate/Cuprate Thin Films | Chen, Rainni; Zhang, Chao; Granstrom, Chris; Wei, John | In this work, we extend prior STS studies to (110)-oriented films, the orientation most likely to produce d-wave Andreev resonances that show up as zero-bias conductance peaks (ZBCP). | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1247 | Absence of proximity induced superconductivity in Bi/Bi2212 heterostructure | Kundu, Asish; Drozdov, Ilya; Wu, Zebin; Gu, Genda; Valla, Tonica | Here, we present an angle-resolved photoemission spectroscopy study of ultrathin Bi films grown in-situ on Bi2212 that show the absence of proximity effect. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1248 | The proximity effect in disordered and quasiperiodic systems | Rai, Gautam; Haas, Stephan; Jagannathan, Anuradha | We investigate the superconducting proximity effect in one-dimensional hybrid rings with a superconducting and a normal part. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1249 | Proximitized Josephson junctions in highly-doped InAs nanowires robust to optical illumination | Yang, Lily; Steinhauer, Stephan; Strambini, Elia; Lettner, Thomas; Schweickert, Lucas; Versteegh, Marijn; Giazotto, Francesco; Zannier, Valentina; Sorba, Lucia; Solenov, Dmitry | We have studied the effects of optical-frequency light on proximitized InAs/Al Josephson junctions based on highly n-doped InAs nanowires at varying incident photon flux and at three different photon wavelengths. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1250 | Quantum phenomona in Unconventional 1D Josephson Arrays | Lu, Wen-Sen; Kalashnikov, Konstantin; Kamenov, Plamen; DiNapoli, Thomas; Gershenson, Michael | In this work we study the current-voltage characteristics (IVc) of Josephson junction with Josephson energy E J ~ E C ~ 0.01-1K and temperature range 0.03-1K. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1251 | Proximity effects of niobium nano-hydrides on state of the art superconducting radio frequency Nb cavity | Sung, ZuHawn; Romanenko, Alexander; Grassellino, Anna | In this study, precipitation of nano-meter scale Nb hydrides on a SRF Nb cavity surface is first directly observed using cryogenic atomic force microscopy, and statistical morphological features of Nb hydrides are compared with HFQS behaviors of state of the art SRF Nb cavities that have shown high accelerating gradient close to the theoretical limit, 50MV/m. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1252 | Low Temperature Annealing and the Generation of Superconductivity in Nickel-Bismuth Bilayers | Vaughan, Matthew; Satchell, Nathan; Ali, Mannan; Kinane, Christy; Stenning, Gavin; Langridge, Sean; Burnell, Gavin | We report a study of the structural, magnetic and superconducting properties of sputtered Bi/Ni bilayers. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1253 | Superconducting Phase Slip Oscillations on Demand | Dorn, Iris; Gulian, Armen | Thus using our approach the PSCs can be generated on demand and provides the opportunity to initiate PSCs at the required time and required place in the wire without changing its biasing properties with high accuracy theoretical modeling. | Session 88: Superconducting Proximity Effect and Josephson Junctions |
| 1254 | van der Waals photothermoelectric effect in atomic layer heterojunctions | Luo, Yunqiu (Kelly); Zhou, Tong; Neupane, Mahesh; Matos Abiague, Alex; Bailey-Crandell, Ryan; Newburger, Michael; Lyalin, Igor; Zutic, Igor; Kawakami, Roland | Here, we report the first observation of a highly-tunable vdW photothermoelectric effect in dual-gated MoS 2/graphene junctions with a striking multiple-polarity switching of photocurrent as a function of junction bias and carrier density. | Session 89: Optoelectronic Properties of 2D Materials |
| 1255 | Realizing precise charge neutrality in van der Waals heterostructure p-n junctions through data intensive photoresponse imaging | Arp, Trevor; Barati, Fatemeh; Su, Shanshan; Lake, Roger; Gabor, Nathaniel | To isolate the behavior of interlayer excitons and explore their dynamics, we employ Multi-Parameter Dynamic Photoresponse Microscopy on encapsulated heterostructures composed of monolayer MoSe 2 and bilayer WSe 2. | Session 89: Optoelectronic Properties of 2D Materials |
| 1256 | Enhanced intrinsic photovoltaic effect in tungsten disulphide nanotubes | Zhang, Yijin; Ideue, Toshiya; Onga, Masaru; Qin, Feng; Suzuki, Ryuji; Zak, Alla; Tenne, Reshef; Smet, Jurgen; Iwasa, Yoshihiro | We have investigated the photovoltaic effect in intrinsic WS 2 with different crystal symmetries and observed a sizable photovoltaic effect from TMD nanotubes without p-n junction. | Session 89: Optoelectronic Properties of 2D Materials |
| 1257 | Carrier transport dynamics in 2D semiconductors optoelectronic devices | Adhikari, Pan; Wang, Peijian; Kobbekaduwa, Kanishka; Liu, Exian; Zeng, Hao; Gao, Jianbo | In this work, we integrate black phosphorus and WS 2 in an ultra-high-speed photodetector structure with sub-25 ps response time to study the carrier transport dynamics. | Session 89: Optoelectronic Properties of 2D Materials |
| 1258 | Nanoscale Mapping of Photoconductivity Enhanced by Localized Charge Traps in the Grain Structures of MoS2 Monolayer | Jeon, Hyesong; Yang, Myungjae; Kim, Taeyoung; Lee, Takhee; Hong, Seunghun | We present a method for the nanoscale mapping of photoconductivity and charge trap density in the grain structures of a monolayer molybdenum disulfide (MoS 2). | Session 89: Optoelectronic Properties of 2D Materials |
| 1259 | Effect of light-matter interaction on the ballistic conductance of an irradiated dice material | Dahal, Dipendra; Gumbs, Godfrey | We derived closed-form analytic expressions for the transmission coefficient of quasiparticles impinging on a square electrostatic potential barrier and step formed by split gates on a dice material which is irradiated by circularly polarized light. | Session 89: Optoelectronic Properties of 2D Materials |
| 1260 | Spatially resolved photoconductivity mapping of MoS2 / WS2 lateral heterostructures | Berweger, Samuel; Zhang, Hanyu; Sahoo, Prasana; Kupp, Benjamin; Blackburn, Jeffrey; Miller, Elisa; Voronine, Dmitri; Wallis, Thomas; Kabos, Pavel; Nanayakkara, Sanjini | We find strong spatial variations in the photoconductive response throughout the flakes studied. | Session 89: Optoelectronic Properties of 2D Materials |
| 1261 | Controllable beam slicing through fractional phase shifts accumulated at an atomically-thin interface | Lee, Myungjae; Mujid, Fauzia; Ye, Andrew; Park, Jiwoong | With this system we observed that a beam propagating along the interface is sliced into two sub-beams leaving a node at the interface. | Session 89: Optoelectronic Properties of 2D Materials |
| 1262 | Engineering the exciton spontaneous emission time in MoSe2 monolayer | HAN, Bo; Robert, Cédric; FANG, Honghua; Semina, Marina; Lagarde, Delphine; Courtade, Emmanuel; Taniguchi, Takashi; Watanabe, Kenji; Amand, Thierry; Urbaszek, Bernhard; Glazov, Mikhail; Marie, Xavier | In time-resolved photoluminescence measurements we demonstrate that the exciton radiative lifetime in the MoSe2 monolayer can be tuned by a factor 10 (typically from 1 to 10 ps) as a function of the hBN thickness. | Session 89: Optoelectronic Properties of 2D Materials |
| 1263 | Optical Switching Based on a Single Layer of WSe2 | Sun, Zheng; Xu, Ke; Beaumariage, Jonathan; Liang, Jierui; Fullerton-Shirey, Susan; Snoke, David | Here, we report a type of optical switching based on a single-layer WSe 2 transistor. | Session 89: Optoelectronic Properties of 2D Materials |
| 1264 | Excitonic Complexes in a Charge Tunable WSe2 Monolayer Device | ROBERT, Cedric; Courtade, Emmanuel; Lagarde, Delphine; Taniguchi, Takashi; Watanabe, Kenji; Urbaszek, Bernhard; Amand, Thierry; Marie, Xavier | In this work, we study a WSe2 monolayer embedded into a charge tunable device made of graphite electrodes and hBN. | Session 89: Optoelectronic Properties of 2D Materials |
| 1265 | Widely Tunable Mid-Infrared Light Emission in Thin-Film Black Phosphorus | Chen, Chen; Lu, Xiaobo; Deng, Bingchen; Chen, Xiaolong; Guo, Qiushi; Li, Cheng; Ma, Chao; Yuan, Shaofan; Sung, Eric; Watanabe, Kenji; Taniguchi, Takashi; Yang, Li; Xia, Fengnian | In this work, we report the widely tunable mid-infrared light emission from dual-gate hexagonal boron nitride (hBN)/Black Phosphorus (BP)/hBN heterostructure devices. | Session 89: Optoelectronic Properties of 2D Materials |
| 1266 | Designing and probing electronic structures of a scalable transition metal dichalcogenide heterostructure: MoS2 monolayers on MoSe2 multilayers. | Lee, Woojoo; Lu, Li-Syuan; Chang, Wen-Hao; Shih, Chih-Kang | Here we report successful development of a wafer size monolayer, quasi continuous and single orientation (but containing twins) platform of TMD that can be exfoliated and transferred to create wafer size TMD semiconducting heterostructures (in this case, monolayer MoS 2 on multilayer MoSe 2) with atomically clean interface. | Session 89: Optoelectronic Properties of 2D Materials |
| 1267 | Emergent optical properties in crystalline, semiconducting 2D covalent organic framework / TMD heterostructures | Balch, Halleh; Evans, Austin; Dasari, Raghunath; Li, Ruofan; Thomas, Simil; Li, Hong; Wang, Danqing; Bredas, Jean-Luc; Marder, Seth; Ralph, Daniel; Dichtel, William; Wang, Feng | Here, we present results on a new semiconducting 2D covalent organic framework and the unusual optical properties that emerge in COF / TMD heterostructures and when exfoliated to few-layer sheets. | Session 89: Optoelectronic Properties of 2D Materials |
| 1268 | Sub-picosecond hot electron transfer in WS2/hBN/p-Si hybrid structure revealed by energy- and time-resolved photoemission electron microscopy | Li, Yaolong; Gao, Yunan; Hu, Xiaoyong; Gong, Qihuang | Here, we report an ultrafast hot electron transfer study in a hybrid structure of monolayer WS 2 on p-type silicon substrate separated by thin layer of hexagonal boron nitride (hBN). | Session 89: Optoelectronic Properties of 2D Materials |
| 1269 | Quantum spin-liquid and chiral superconductivity in TaS2 | Kanigel, Amit; Ribak, Amit; Majlin skiff, Roni; Fischer, Mark; Ruhman, Jonathan; Dagan, Yoram | We study 4Hb-TaS 2, which naturally realizes an alternating stacking of 1T-TaS 2 and 1H-TaS 2 structures. | Session 90: Superconductivity in Low Dimensional Systems |
| 1270 | Blockade of vortex flow by thermal fluctuations in atomically thin clean-limit superconductors | Benyamini, Avishai; Kennes, Dante; Telford, Evan; Watanabe, Kenji; Taniguchi, Takashi; Millis, Andrew; Hone, James; Dean, Cory; Narayan, Abhay | The findings provide a new perspective on fundamental questions of vortex mobility and dissipation in superconductors. | Session 90: Superconductivity in Low Dimensional Systems |
| 1271 | Supercurrent detection of topologically trivial zero-energy states in nanowire junctions | Awoga, Oladunjoye; Cayao, Jorge; Black-Schaffer, Annica | In this work we investigate phase-biased transport in SNS junctions based on nanowires, with strong Rashba spin-orbit coupling and magnetic field, strongly coupled to 2D conventional $s$-wave superconductors. | Session 90: Superconductivity in Low Dimensional Systems |
| 1272 | Quantum disoliton as a one-dimensional linear potential system | Kim, Geunyong; Yang, Jinho; Yang, Ilkyu; Wulferding, Dirk; Yun, Jinyoung; Movshovich, Roman; Cho, GilYoung; Kim, Ki-Seok; Kim, Jeehoon | Here we report on a quantum disoliton (QDS) created as a U-shape quantum flux tube in a superconducting Nb film. | Session 90: Superconductivity in Low Dimensional Systems |
| 1273 | Andreev bound states in hybrid full-shell Al/InAs nanowire devices | Valentini, Marco; Brauns, Matthias; Hofmann, Andrea; Krogstrup, Peter; Katsaros, Georgios | Here, we present low temperature magnetotransport data using InAs NWs fully covered by Al [3]. | Session 90: Superconductivity in Low Dimensional Systems |
| 1274 | Gate-tunable superconductivity in layered β-MoTe2 | Jindal, Apoorv; Rhodes, Daniel; Watanabe, Kenji; Taniguchi, Takashi; Dean, Cory; Hone, James; Pasupathy, Abhay | In this talk, we describe transport measurements on a closely related material, β-MoTe 2. | Session 90: Superconductivity in Low Dimensional Systems |
| 1275 | Non-linear IV characteristics in two-dimensional superconductors: Berezinskii-Kosterlitz-Thouless physics vs inhomogeneity | Benfatto, Lara; Venditti, Giulia; Biscaras, Johan; Hurand, Simon; Bergeal, Nicolas; Lesueur, Jerome; Dogra, Anjana; Budhani, Ramesh; Mondal, Mintu; Jesudasan, John; Raychaudhuri, Pratap; Caprara, Sergio | Here, we compare the experimental measurements of IV characteristics in two cases, namely NbN thin films and SrTiO 3-based interfaces. | Session 90: Superconductivity in Low Dimensional Systems |
| 1276 | Two-dimensional superconductivity and violation of Pauli paramagnetic limit in MBE-grown Al nanofilms | Liang, Chi-Te; Yeh, Ching-Chen; Su, Guan-Ming; Kumar, Ankit; Wu, Biyi; Fan, Yen-Ting; Lin, Sheng-Di; Chow, Lee | We have performed low-temperature transport measurements on Al nanofilms on GaAs substrates prepared by molecular beam epitaxy (MBE) with as-grown thicknesses of 3 nm, 3.5 nm, and 4 nm. | Session 90: Superconductivity in Low Dimensional Systems |
| 1277 | Superconducting Nanostructures Grown by He+- Focused Ion Beam Induced Deposition (FIBID) | Córdoba, Rosa; Orús, Pablo; Mailly, Dominique; Hlawacek, Gregor; DE TERESA NOGUERAS, JOSE MARIA | Superconducting Nanostructures Grown by He+- Focused Ion Beam Induced Deposition (FIBID) | Session 90: Superconductivity in Low Dimensional Systems |
| 1278 | Magnetotransport properties of layered quasi-one-dimensional superconductor Ta2PdS5 | Zhang, Enze; Zhi, Jinhua; Zou, Yi-Chao; Ye, Zefang; Ai, Linfeng; Shi, Jiacheng; Huang, Ce; Liu, Shanshan; Kang, Ning; Xu, Hongqi; Wang, Wei; He, Liang; Zou, Jin; Liu, Jinyu; Mao, Zhiqiang; Xiu, Faxian | Here we report the systematic study of magnetotransport properties of Ta2PdS5 nanowires exfoliated from its bulk material. | Session 90: Superconductivity in Low Dimensional Systems |
| 1279 | Superconductivity at the LaAlO3/SrTiO3 1D Zigzag Nanowires | Pai, Yun-Yi; Briggeman, Megan; Lee, Hyungwoo; Lee, Jung-Woo; Cheng, Xiaoxing; Yu, Muqing; Huang, Mengchen; Li, Jianan; Eom, Chang-Beom; Chen, Long Q.; Irvin, Patrick; Levy, Jeremy | We find that straight nanowires are comparatively more resistive, both in their normal and superconducting state, than channels that have a zig-zag structure. | Session 90: Superconductivity in Low Dimensional Systems |
| 1280 | Frictional drag between two LaAlO3/SrTiO3 superconducting nanowires | Tang, Yuhe; Lee, Jung-Woo; Tylan-Tyler, Anthony; Lee, Hyungwoo; Tomczyk, Michelle; Huang, Mengchen; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | We report frictional drag measurements between two superconducting LaAlO 3/SrTiO 3 nanowires. | Session 90: Superconductivity in Low Dimensional Systems |
| 1281 | Interface superconductivity in La2-xSrxCuO4 heterostructures | Gong, Wenjie; Little, Larissa; Hoffman, Jason; Hoffman, Jennifer | Here, we aim to grow high-quality heterostructures of underdoped and overdoped La 2-xSr xCuO 4 on SrTiO 3 and LaSrAlO 4 with atomic layer-by-layer molecular beam epitaxy (MBE). | Session 90: Superconductivity in Low Dimensional Systems |
| 1282 | Microscopic theory of in-plane critical field in two-dimensional Ising superconducting systems | Liu, Hongchao; Liu, Haiwen; Zhang, Ding; Xie, Xincheng | We study the in-plane critical magnetic field of two-dimensional Ising superconducting systems, and propose the microscopic theory for these systems with or without inversion symmetry. | Session 90: Superconductivity in Low Dimensional Systems |
| 1283 | Dimensionality of the Zeeman energy in conductors | Klemm, Richard; Zhao, Aiying; Gu, Qiang; Haugan, Timothy | Dimensionality of the Zeeman energy in conductors | Session 90: Superconductivity in Low Dimensional Systems |
| 1284 | Controlling the charge dispersion of a nearly-open superconducting island | Bargerbos, Arno; Uilhoorn, Willemijn; Van Heck, Bernard; Yang, Chung-Kai; Krogstrup, Peter; Kouwenhoven, Leo; De Lange, Gijs; Kou, Angela | Here we investigate the charge dispersion of a nanowire transmon hosting a quantum dot in the junction. | Session 90: Superconductivity in Low Dimensional Systems |
| 1285 | Calorimetric Observation of Magnetic-Field-Induced High-Field FFLO Superconducting Phase in λ-(BETS)2GaCl4 | Fortune, Nathanael; Rydh, Andreas; Palmer-Fortune, Joyce; Agosta, Charles; Kobayashi, Akiko | For field-angles within 0.5° of plane-parallel, we observe an enhancement of the upper critical field superconducting phase boundary H c2(T), a calorimetric signature of pancake vortex formation with decreasing field at H p, and a field-induced phase transition between the upper and lower superconducting states. | Session 90: Superconductivity in Low Dimensional Systems |
| 1286 | Anomalous Metallic Phase in Tunable Destructive Superconductors | Vaitiekenas, Saulius; Krogstrup, Peter; Marcus, Charles | Here, we use axial and transverse magnetic fields to control the crossover between the conventional and destructive Little-Parks regimes in nanowires with an epitaxial Al shell fully surrounding InAs core. | Session 90: Superconductivity in Low Dimensional Systems |
| 1287 | Study of 2D superconductivity at oxide interfaces by microwave resonators | Saglam, Yildiz; Lesne, Edouard; Bothner, Daniel; Schmidt, Felix; Gabay, Marc; Caviglia, Andrea; Steele, Gary | Here, in order to study the superconducting state at the LAO/STO(111) interface, we designed embedded SCPW resonators whose microwave resonance frequency can be tuned by electrostatic gating, manifesting a change of the 2DES’ superfluid density through a large change of its kinetic inductance. | Session 90: Superconductivity in Low Dimensional Systems |
| 1288 | Ising superconductors: the interplay of magnetic field, triplet channels and disorder | Möckli, David; Khodas, Maxim | We formulate the quasi-classical theory of Ising superconductors and solve the linearized Eilenberger equations to obtain the pair-breaking equations that determine the Zeeman field – temperature dependence of the continuous superconducting transition. | Session 90: Superconductivity in Low Dimensional Systems |
| 1289 | Theory of Pseudogap Effects in Magic Angle Twisted Bilayer Graphene | Chaudhary, Gaurav; Wang, Zhiqiang; Levin, Kathryn | In this talk we discuss the signatures of the pseudogap effects seen in transport studies of superconducting magic angle twisted bilayer graphene (MATBG). | Session 90: Superconductivity in Low Dimensional Systems |
| 1290 | Quantum transport of atomically thin 1Td-MoTe2 | Wang, Xirui; Yasuda, Kenji; Rhodes, Daniel; Suzuki, Takehito; Watanabe, Kenji; Taniguchi, Takashi; Checkelsky, Joseph; Hone, James; Jarillo-Herrero, Pablo | There has been growing interest in the study of crystalline 2D superconductors, especially those with low carrier densities with gate tunability. | Session 90: Superconductivity in Low Dimensional Systems |
| 1291 | Strong pairing in two dimensions: Pseudogaps, domes, and other implications | Levin, Kathryn; Wang, Xiaoyu; Chen, Qijin | In this talk we compute the Berezinskii-Kosterlitz-Thouless (BKT) transition temperature T BKT and pairing onset T* as a function of pairing interaction strength g and of density using this crossover theory. | Session 90: Superconductivity in Low Dimensional Systems |
| 1292 | In situ mutual inductance measurement of superconducting atomic films: Si(111)-√7 × √3-In and monolayer FeSe on SrTiO3 | Duan, Ming-chao; Wu, Yanfu; Yao, Gang; Liu, Canhua; Jia, Jinfeng | To realize vacuum-based measurements, we developed a multifunctional scanning tunneling microscope. | Session 90: Superconductivity in Low Dimensional Systems |
| 1293 | Multi-carrier states in the Peierls electron-phonon model | Nocera, Alberto; Sous, John; Berciu, Mona | Motivated by the discovery of light polarons and bipolarons in the Peierls electron-phonon model on a one dimensional lattice [1], we numerically study few-carrier states (up to six) using the density matrix renormalization group method. | Session 90: Superconductivity in Low Dimensional Systems |
| 1294 | Bi2Sr2CaCu2O8 single crystal exfoliation, characterization, and manipulation | Mercado Lozano, Pedro; Li, Qiang; Shin, Young Jae; Gu, Genda | We developed a process to manipulate and analyze BSCCO single crystal and bi-crystal junctions at different film thickness. | Session 90: Superconductivity in Low Dimensional Systems |
| 1295 | An unexpected charge doping mechanism for quasi-one-dimensional ACr3As3 superconductors | Taddei, Keith; Sanjeewa, Liurukara; Lei, Bing-Hua; Fu, Yuhao; Zheng, Qiang; Singh, David; Sefat, Athena; Dela Cruz, Clarina | We show that the reported growth technique inherently intercalates H into the quasi-1D CrAs tubes and that the H acts as an electron donor. | Session 90: Superconductivity in Low Dimensional Systems |
| 1296 | Textured one-dimensional superconducting nanostructures | Lynn, Robert; Ung, Kristine; Sementilli, Leo; Markovic, Nina | Textured one-dimensional superconducting nanostructures | Session 90: Superconductivity in Low Dimensional Systems |
| 1297 | New Method for Identifying the FFLO State in λ-(BETS)2GaCl4 Using Sample Rotation | Laramee, Brett; Ghimire, Raju; Bales, Calvin; Coniglio, William; Agosta, Charles; Schlueter, John; Kobayashi, Akiko | We will present rf penetration depth measurements on the quasi-2D layered organic superconductor λ-(BETS) 2GaCl 4 (BETS) using a tunnel diode oscillator. | Session 90: Superconductivity in Low Dimensional Systems |
| 1298 | Nanoscale optics of 2D material superlattices | Koppens, Frank | In this talk, we give an overview of the nano-optical properties of 2D material superlattices, obtained by twisting or nanostructuring. | Session 91: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1299 | New quantum materials: Sculpting electromagnetic fields on the atomic scale | Mikkelsen, Maiken | Here, we show a plasmonic nanocavity based on a nanopatch antenna design that has two tunable resonant modes in the visible spectrum. | Session 91: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1300 | Collective mode spontaneous symmetry breaking: out-of-equilibrium plasmonic magnetism | Song, Justin | We will argue that a driven interacting system subject to a linearly polarized (achiral) driving field can spontaneously magnetize (acquire chirality). | Session 91: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1301 | Nano-polaritonics in twisted van der Waals heterostructures | Ni, GuangXin | We analyzed these soliton networks and obtained the local electrodynamical characters based on the infrared active polaritonics at the nanoscale. | Session 91: Nano-Plasmonics in Van Der Waals Materials and Beyond |
| 1302 | Ultrafast magnetic dynamics in insulating YBa2Cu3O6+x revealed by time resolved two-magnon Raman Scattering. | Reznik, Dmitry; Yang, Jhih-An; Pellatz, Nick; Wolf, Thomas | Here we introduce time-resolved two-magnon Raman scattering as a novel real time probe of magnetic correlations especially well-suited for antiferromagnets. | Session 92: Non-Equilibrium Dynamics |
| 1303 | Ultrafast charge dynamics in bulk alpha-Fe2O3 | Ud Din, Naseem; Turkowski, Volodymyr; Chang, Hung-Tzu; Guggenmos, Alexander; Zuerch, Michael; Leone, Stephen; Rahman, Talat | In this talk, we present results for ultrafast charge dynamics in laser pulse-excited antiferromagnet alpha-Fe 2O 3 obtained with the combined time-dependent density-functional theory and dynamical mean-field theory approach. | Session 92: Non-Equilibrium Dynamics |
| 1304 | Non-equilibrium dynamics of vibrationally coupled electrons excited by coherent radiation | Sous, John; Kloss, Benedikt; Kennes, Dante; Reichman, David; Millis, Andrew | Here we employ tensor network methods to simulate the dynamics of a metal driven to a highly excited state at initial time by a pump that excites specific vibrational modes. | Session 92: Non-Equilibrium Dynamics |
| 1305 | High Harmonic Generation and Nonequilibrium Quasiparticle Dynamics in an Unconventional Superconductor with Competing Order | Zhu, Jian-Xin; Fauseweh, Benedikt; Zhu, Wei; Lai, Chen-Yen | Here we study an effective t-t’-U-V Hubbard model which captures the competition between antiferromagnetic spin-density wave (SDW) and d-wave superconducting (DSC) orderings. | Session 92: Non-Equilibrium Dynamics |
| 1306 | Characterization of photoexcited states in the half-filled one-dimensional extended Hubbard model assisted by machine learning | Shinjo, Kazuya; Sota, Shigetoshi; Yunoki, Seiji; Tohyama, Takami | Here, we propose that the supervised machine learning (ML) can provide useful information for characterizing photoexcited states in 1DEHM [1]. | Session 92: Non-Equilibrium Dynamics |
| 1307 | Negative absolute conductivity in photoexcited metals | Chiriaco, Giuliano; Millis, Andrew; Aleiner, Igor | We show that in a model of a metal photoexcited by a pump pulse resonant with a phonon mode, the absolute dc conductivity may become transiently negative, depending on the interplay between the electronic structure, the phonon frequency and the pump intensity. | Session 92: Non-Equilibrium Dynamics |
| 1308 | Matrix product state investigations of time-dependent spectral functions after a photoexcitation | Meyer, Constantin; Manmana, Salvatore | We study the time-dependent dynamical structure factor after a photoexcitation of a variant of the 1d Hubbard model with a background staggered magnetic field using matrix product state (MPS) techniques. | Session 92: Non-Equilibrium Dynamics |
| 1309 | Field-Driven Correlated Quantum Systems, Bridging the Gap Between the Transient and the Steady State | Dohner, Eric; Fotso, Herbert; Kemper, Alexander; Freericks, James | We demonstrate an extrapolation scheme that can be leveraged to extend the characterization of the system from equilibrium to steady state at minimal computational cost. | Session 92: Non-Equilibrium Dynamics |
| 1310 | Photon echo in the Coloumb glass phase as observed with 2D non-linear THz spectroscopy | Mahmood, Fahad; Chaudhuri, Dipanjan; Barbalas, David; Nandkishore, Rahul; Armitage, Peter | Here we perform 2D non-linear THz spectroscopy to study the low energy non-linear electrodynamics of charge carriers in the Coulomb phase. | Session 92: Non-Equilibrium Dynamics |
| 1311 | The quadratically driven nonlinear photonic lattice and its dissipative phase transition: from quantum to classical | Verstraelen, Wouter; Rota, Riccardo; Savona, Vincenzo; Wouters, Michiel | Here, I show how, using quantum trajectories with a Gaussian ansatz [3], we are able to explore a much larger parameter regime than before. | Session 92: Non-Equilibrium Dynamics |
| 1312 | Accessing quantum phases in Hubbard honeycomb lattice using an electromagnetic drive | Kumar, Umesh; Lin, Shizeng | Using Schrieffer-Wolff transformation for the periodically driven system [2] and high-frequency approximation on the drive, we evaluate an effective low-energy Hamiltonian for the Hubbard honeycomb lattice in the presence of drive. | Session 92: Non-Equilibrium Dynamics |
| 1313 | Long-lived coherent states in photo-excited NiO | Golez, Denis; Gillmeister, Konrad; Bittner, Nikolaj; Pavlyukh, Yaroslav; Chiang, Cheng-Tien; Werner, Philipp; Widdra, Wolf | We will present a combined experimental and theoretical study of the ultrafast dynamics in strongly correlated photo-excited NiO [1]. | Session 92: Non-Equilibrium Dynamics |
| 1314 | Creation of Nonthermal Excited State Populations in a Large U Mott Insulator | Nevola, Daniel; Bataller, Alexander; Kumar, Ankit; Sridhar, Samanvitha; Frick, Jordan; O’Donnell, Shaun; Ade, Harald; Maggard, Paul; Kemper, Alexander; Gundogdu, Kenan; Dougherty, Daniel | In this work, we perform time-and-angle resolved spectroscopy on the spin-orbit assisted Mott insulator α-RuCl 3. | Session 92: Non-Equilibrium Dynamics |
| 1315 | Laser pulse driven nonequilibrium dynamics in the Kondo lattice model | Fauseweh, Benedikt; Zhu, Jian-Xin | The Kondo lattice model is used to describe the emergent phenomena of such systems. | Session 92: Non-Equilibrium Dynamics |
| 1316 | Out-of-equilibrium dynamics in a 2D electron system with screened Coulomb interactions | Stanley, Lily; Popovic, Dragana | To address the fundamental question whether glassy behavior of electrons exists in the absence of long-range Coulomb interactions, we report a study of conductivity relaxations after excitation out of equilibrium, in particular after applying a large change of carrier density ns, over a wide range of temperatures and ns, spanning the 2D MIT. | Session 92: Non-Equilibrium Dynamics |
| 1317 | Quantum Synchronization and Superconductivity | Curtis, Jonathan; Galitski, Victor | In this talk we will consider a model where the quantum oscillators are realized by a local superconducting order parameter. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1318 | Theory of the nonlinear susceptibility of layered superconductors: application to strontium ruthenate | Chen, Fei; Pelc, Damjan; Greven, Martin; Fernandes, Rafael | An alternative that has been recently explored is to measure the nonlinear susceptibility via third-order magnetic response, which is believed to be dominated by SF above T c. Here, we present a phenomenological theoretical model for the nonlinear susceptibility of layered superconductors. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1319 | Current induced Non equilibrium states In NbTi superconducting Bridge | Harrabi, Khalil; Maneval, Jean Paul | We report on the discrimination between dissipative states in NbTi superconducting filament on polished crystalline Al2O3 using current driven pulse technique. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1320 | Photo-Manipulation of Superconductivity in an Extended Hubbard Model | Chen, Wei-Chih; Wang, Yao; Chen, Cheng-Chien | Here, we numerically study intertwined orders involving charge, spin, and superconductivity in an extended Hubbard model by exact diagonalization on a 16-site square cluster. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1321 | Charged fluctuators as a limit to the microscopic and macroscopic coherence of superconductors | Bourlet, Nicolas; le Sueur, Hélène; Svilans, Artis; MURANI, Anil; Berge, Laurent; Dumoulin, Louis; Joyez, Philippe | By analyzing experiments on thin-film resonators of NbSi and TiN, we shed light on a novel decoherence mechanism at work in disordered superconductors. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1322 | Analytical Noise Spectra for Chiral d-Wave Superconducting Heterostructures | Ostrove, Corey; Reichl, Linda | We present analytical expressions for the noise spectrum of a chiral dwave/normal/chiral d-wave Josephson junction. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1323 | Bosonic Mode in the Tunneling Spectra of Cuprate and Fe-based Superconductors: Elastic Tunneling Contribution | Zasadzinski, John; Lowell, Beverly; Samuelson, Noah | Bosonic Mode in the Tunneling Spectra of Cuprate and Fe-based Superconductors: Elastic Tunneling Contribution | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1324 | Dynamics of phase coherence in superconducting cuprates upon mid-infrared photoexcitation | Montanaro, Angela; Giusti, Francesca; Fausti, Daniele | We performed measurements on optimally-doped Y-Bi2212 by a 3-pulse technique which allows to disentangle these two effects. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1325 | Josephson phenomena in Van der Waals heterostructures | Farrar, Liam; Balakrishnan, Geetha; Bending, Simon | In this talk we discuss progress made in the formation of Josephson junctions between electrodes with different superconducting order parameters by two methods; homojunctions formed by stacking two exfoliated flakes of the same superconductor with a well-defined twist angle, and heterojunctions formed by stacking two different superconductors (eg. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1326 | Vortex effects as an indication of a transition to the FFLO state | Bales, Calvin; Ghimire, Raju; Mitrovic, Vesna; Schlueter, John; Kobayashi, Akiko; Agosta, Charles | This presentation will focus on the results of measurements of λ-(BETS)2GaCl4 and κ-(ET)2Cu(NCS)4 superconductors. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1327 | Imaging dissipative current in superconducting Niobium film using scanning SQUID susceptometry | Mueller, Eli; Kirtley, John; Shi, Ruby; Man, Huiyuan; Moler, Kathryn | In this talk, we report on micron scale scanning SQUID susceptometry measurements on a Niobium film in an effort to observe the frequency and temperature dependence of quasiparticle scattering. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1328 | Dynamic Evolutions of Flux Distributions in a Superconductor by a Pulsed Current | Kurokawa, Hodaka; Kinoshita, Yuto; Nabeshima, Fuyuki; Tokunaga, Masashi; Maeda, Atsutaka | We investigated for different initial flux distributions in a comparative manner; the field-cooled state, the remanent state, the zero-field-cooled (ZFC) state. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1329 | Effect of electron irradiation on rf-susceptibility of ferromagnetic superconductor EuFe2(As,P)2 | Ghimire, Sunil; Cho, Kyuil; Tanatar, Makariy; Tamegai, Tsuyoshi; Prozorov, Ruslan | Effect of electron irradiation on rf-susceptibility of ferromagnetic superconductor EuFe2(As,P)2 | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1330 | Rotational transition, domain formation, dislocations and defects in vortex systems with combined six- and 12-fold anisotropic interactions | Olszewski, Maciej; Eskildsen, Morten; Reichhardt, Charles; Reichhardt, Cynthia | We introduce a new model for a pairwise repulsive interaction potential of vortices in a type-II superconductor, consisting of superimposed six- and 12-fold anisotropies. | Session 93: Superconductivity: Fluctuation, Noise, Nonequilibrium, and Localization Effects |
| 1331 | Moving Majoranas across a quantum point contact in 2D topological insulators | Calzona, Alessio; Trauzettel, Bjorn | We propose a setup based on the helical edges of two-dimensional topological insulators (2DTI) which allows for a high degree of tunability by only controlling a handful of superconducting phases. | Session 94: Majorana and Parafermion Devices |
| 1332 | Transport properties of Majorana bound state networks in the Coulomb blockade regime | Ekström, Johan; Recher, Patrik; Schmidt, Thomas | We study the transport properties of nanowire networks hosting MBSs with a focus on the effects of the charging energy and the overlap between neighboring MBSs in short mesoscopic samples. | Session 94: Majorana and Parafermion Devices |
| 1333 | Josephson radiation from nonlinear dynamics of Majorana modes in topological Josephson junctions | Feng, Jia-Jin; Huang, Zhao; Wang, Zhi; Niu, Qian | We extend this model to include the Majorana dynamics and show a quantitative agreement with the experimental results. | Session 94: Majorana and Parafermion Devices |
| 1334 | Signatures of topological ground state degeneracy in Majorana islands | Vayrynen, Jukka; Feiguin, Adrian; Lutchyn, Roman | We consider a mesoscopic superconducting island hosting multiple pairs of Majorana zero-energy modes. | Session 94: Majorana and Parafermion Devices |
| 1335 | Majorana Bound States at the Superconducting Vortex from Magnetic Skyrmions | Sun, Canon; Lee, Shu-Ping; Li, Yi | We study the Majorana zero modes localized at the interface of the heterostructure and propose a pathway towards a useful platform for the manipulation of Majorana fermions via controlling skyrmions. | Session 94: Majorana and Parafermion Devices |
| 1336 | Topological superconductivity and Majorana fermions in the heterostructure of EuS island and planar gold surface | Xie, Yingming; Law, Kam Tuen; Lee, Patrick | In this work, we show the gold wire can be replaced by a large gold surface in this platform. | Session 94: Majorana and Parafermion Devices |
| 1337 | Transmission Amplitude through a Coulomb blockaded Majorana Wire | Thamm, Matthias; Rosenow, Bernd | We study electronic transport through a Coulomb blockaded superconducting Rashba wire in the co-tunneling regime between conductance resonances. | Session 94: Majorana and Parafermion Devices |
| 1338 | Parafermion braiding in fractional quantum Hall edge states with finite chemical potential | Groenendijk, Solofo; Calzona, Alessio; Tschirhart, Hugo; Idrisov, Edvin; Schmidt, Thomas | To remedy this, we propose an improved braiding protocol which avoids those degeneracies. | Session 94: Majorana and Parafermion Devices |
| 1339 | Entanglement in topological spin Josephson junctions | Shen, Pei-Xin; Hoffman, Silas; Trif, Mircea | We propose to use a microwave cavity setup (cQED) for detecting the aforementioned Josephson effects by dispersive readout methods. | Session 94: Majorana and Parafermion Devices |
| 1340 | Effect of Magnetic Field on Multi-terminal Josephson Junctions | Ozguler, A. Baris; Lee, Hanho; Manucharyan, Vladimir; Vavilov, Maxim | We study the Fraunhofer diffraction patterns that manifest itself as oscillations in the diameter and area of the CCC. | Session 94: Majorana and Parafermion Devices |
| 1341 | Generic quantized zero-bias conductance peaks in superconductor-semiconductor hybrid structures | Pan, Haining; Cole, William; Sau, Jay | We show theoretically that quantized zero-bias conductance peaks should be ubiquitous in superconductor-semiconductor hybrids by employing a random matrix model with continuous tuning parameters. | Session 94: Majorana and Parafermion Devices |
| 1342 | Repulsive interactions enhance the coupling of superconductors to fractional quantum Hall edges | Katzir, Barak; Lindner, Netanel; Stern, Ady; Berg, Erez | To this end, we use an effective wire construction model for the quantum Hall liquid and employ renormalization group methods to obtain the phase diagram of the system. | Session 94: Majorana and Parafermion Devices |
| 1343 | Survival of the fractional Josephson effect in time reversal invariant topological superconductors | Knapp, Christina; Chew, Aaron; Alicea, Jason | This talk will revisit the fractional Josephson effect and explore to what extent the anomalous periodicity remains robust in the presence of local mixing terms that destroy rigidity of non-Abelian braiding. | Session 94: Majorana and Parafermion Devices |
| 1344 | Presence versus absence of end-to-end nonlocal conductance correlations in Majorana nanowires: Majorana bound states versus Andreev bound states | Lai, Yi-Hua; Sau, Jay | We present detailed results for the calculated conductance, energy spectra, and wavefunctions for different chemical potentials at the same magnetic field values to motivate end-to-end conductance correlation measurements in Majorana nanowires. | Session 94: Majorana and Parafermion Devices |
| 1345 | Dissipative response of a topological Josephson junction at the critical point | Kurilovich, Vladislav; Murthy, Chaitanya; Kurilovich, Pavel; Van Heck, Bernard; Glazman, Leonid; Nayak, Chetan | We investigate signatures of this quantum phase transition in the dissipative response of a nanowire Josephson junction. | Session 94: Majorana and Parafermion Devices |
| 1346 | Fabrication of Single-Photon Emitters in 2D Hexagonal Boron Nitride via Carbon Annealing | Zhu, Yaozheng; Lyu, Chao; Ye, Yu | Here, we developed a new method to activate single-photon emitters in 2D hBN, which is highly desired for their further application. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1347 | Density functional theory of strain engineering on single photon emitter in hexagonal boron nitride | Abdi, Mehdi; Li, Song; Chou, Jyh-Pin; Thiering, Gergo; Udvarhelyi, Péter; Hu, Alice; Plenio, Martin; Gali, Adam | 1,2 Here, using density functional theory, we provide detailed investigation of the geometric and electronic evolution of V NN B under external strain. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1348 | Optical detection of correlated insulating states in WSe2/WS2 moiré superlattices | Regan, Emma; Wang, Danqing; Jin, Chenhao; Utama, Iqbal; Gao, Beini; Wei, Xin; Zhao, Sihan; Zhao, Wenyu; Yumigeta, Kentaro; Blei, Mark; Carlstroem, Johan; Watanabe, Kenji; Taniguchi, Takashi; Tongay, Sefaattin; Crommie, Michael; Zettl, Alex; Wang, Feng | Using a novel optical detection technique, we observe correlated electronic phases in semiconducting WSe 2/WS 2 moiré superlattices. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1349 | Light Emission of 2D Interlayer Moiré Excitons | Zhao, Huan; Kim, Younghee; Jones, Andrew; Piryatinski, Andrei; Htoon, Han | In this talk, I will introduce optical characterization of 2D heterobilayer transition metal dichalcogenides (TMDCs) interlayer excitons under different configurations of interlayer twisting angles and material selections. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1350 | Anomalous bright narrow interlayer exciton photoluminescence in MoSe2-WSe2 heterostructures | Mahdikhanysarvejahany, Fateme; Koehler, Michael; Mandrus, David; Taniguchi, Takashi; Watanabe, Kenji; Monti, Oliver; LeRoy, Brian; Schaibley, John | We will discuss the density and temperature dependence of this bright interlayer exciton PL and how it relates to other recent reports of interlayer moiré excitons in transition metal dichalcogenide heterostructures. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1351 | Emergent magnetic field from the moiré of homobilayer 2D semiconductors | Zhai, Dawei; Yu, Hongyi; Chen, Mingxing; Yao, Wang | Here we study Moiré structures formed in homobilayer TMD due to twisting, uniform strains, and their combinations [2], where electrons can reside in either layer with the layer index serving as an internal degree of freedom. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1352 | Induced spin-orbit coupling in twisted graphene-TMDC heterobilayers: Twistronics meets spintronics | David, Alessandro; Rakyta, Péter; Kormanyos, Andor; Burkard, Guido | Setting up a theoretical model of the graphene-TMDC heterobilayer we are able to explain the origin and predict the interlayer twist angle dependence of the induced SOC [2]. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1353 | The optical evidence of atomic reconstruction in twisted bilayer MoS2 | Quan, Jiamin; Linhart, Lukas; Lin, Miao-Ling; Wang, Chun Yuan; Hsu, Wei-Ting; Choi, Junho; Young, Carter; Taniguchi, Takashi; Shih, Chih-Kang; MacDonald, Allan; Tan, Ping-Heng; Libisch, Florian; Li, Xiaoqin (Elaine) | Here, we employ low-frequency Raman measurements and DFT calculations to demonstrate atomic reconstruction in the MoS 2 homobilayer with a small twist angle (θ). | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1354 | Interlayer Excitons in van der Waals Heterostructures in a Magnetic Field | Cao, Jinlyu; Fertig, Herbert; Brey, Luis | We investigate particle-hole excitations in bilayer 2D van der Waals heterostructures in a magnetic field. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1355 | Near field study of twisted transition metal dichalcogenide bilayers | Zhang, Shuai; Sternbach, Aaron; Li, Baichang; Zhou, Lin; Wu, Wenjing; Xiong, Lin; Ray, Essance; Wilson, Nathan; Xu, Xiaodong; Zhu, Xiaoyang; Hone, James; Basov, Dmitri | In this talk, we utilize near-field optical microscopy to explore twisted transition metal dichalcogenides (TMD) bilayers. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1356 | Floquet-Engineered Topological Flat Bands in Irradiated Twisted Bilayer Graphene | Li, Yantao; Fertig, Herbert; Seradjeh, Babak | We propose a tunable optical setup to engineer topologically nontrivial flat bands in twisted bilayer graphene under circularly polarized light. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1357 | Doping-dependence of exciton energies and MCD in TMD moiré superlattices | Blinov, Igor; Macdonald, Allan | I will present a microscopic calculation of the optical response at finite doping, as well as a simple phenomenological model, which captures the main results. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1358 | Excitonic insulator and spin-valley superfluid in twisted bilayer transition metal dichalcogenide | Bi, Zhen; Fu, Liang | In this work, we show the half-filling state is an intervalley excitonic insulator, where the electron-hole pairing is strongly enhanced for a certain range of displacement field due to the proximity of a van Hove singularity to the Fermi level. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1359 | Dielectric engineeringin monolayer WSe2/graphene heterostructures | Xu, Yang; Horn, Connor; Rhodes, Daniel; Watanabe, Kenji; Taniguchi, Takashi; Hone, James; Shan, Jie; Mak, Kin Fai | Here, we investigate the optical response of monolayer WSe 2, which is in contact with gate-tunable graphene in van der Waals heterostructures, by optical reflection spectroscopy. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1360 | Flat bands and optical activity in twisted boron nitride | Ochoa, Hector; Asenjo-Garcia, Ana | We present a minimal continuum model describing the electronic reconstruction in twisted bilayers of hexagonal boron nitride. | Session 95: Optical Studies of 2D Materials and Their Twisted Heterostructures |
| 1361 | Van Hove singularity and stress-induced Fermi surface tuning in Sr2RuO4 | Chronister, Aaron; Pustogow, Andrej; Luo, Yongkang; Su, Yue-Shun; Mackenzie, Andrew; Hicks, Clifford; Bauer, Eric; Kikugawa, Naoki; Brown, Stuart | Van Hove singularity and stress-induced Fermi surface tuning in Sr2RuO4 | Session 96: Strontium and Calcium Ruthenates |
| 1362 | Density wave at the reconstructed surface of Sr2RuO4 and implications for quantum criticality | De Almeida Marques, Carolina; Rhodes, Luke; Granata, Veronica; Fittipaldi, Rosalba; Vecchione, Antonio; Rost, Andreas; Wahl, Peter | Here, we propose that the reconstructed surface layer of Sr 2RuO 4 constitutes an ideal material to study the physics of quantum criticality. | Session 96: Strontium and Calcium Ruthenates |
| 1363 | QSGW+DMFT+BSE description of superconductivity in Sr2RuO4 | Acharya, Swagata; Pashov, Dimitar; Schilfgaarde, Mark | We present a novel approach, a detailed \emph{ab initio} theory, coupling quasiparticle self-consistent GW approximation with dynamical mean field theory (DMFT). | Session 96: Strontium and Calcium Ruthenates |
| 1364 | Non-monotonic temperature dependence of the Hall coefficient in Hund’s metals | Zingl, Manuel; Mravlje, Jernej; Aichhorn, Markus; Parcollet, Olivier; Georges, Antoine | This qualitative picture is supported by quantitative calculations using Boltzmann transport theory in combination with dynamical mean-field theory, taking into account the effect of spin–orbit coupling. | Session 96: Strontium and Calcium Ruthenates |
| 1365 | Fluctuation stablised spin-density-wave order and the phase diagram of Sr3Ru2O7 | Hayden, Stephen; Waite, Richard; Lester, Chris; Perry, Robin; Ramos, Silvia; Khalyavin, Dmitry; Orlandi, Fabio; Manuel, Pascal | Here we use magnetic neutron diffraction to characterise the magnetic order as a function of magnetic field strength and direction. | Session 96: Strontium and Calcium Ruthenates |
| 1366 | Interplay between Spatially Modulated Nematic and Spin-Density Wave Order in Sr3Ru2O7 | Clepkens, Jonathan; Kee, Hae-Young | Here we study the interplay between spatially modulated nematic and SDW order from a microscopic viewpoint. | Session 96: Strontium and Calcium Ruthenates |
| 1367 | Metal-Insulator and Magnetic Phase Diagram of Ca2RuO4 from Auxiliary Field Quantum Monte Carlo and Dynamical Mean Field Theory | Shi, Hao; Hao, Hongxia; Georges, Antoine; Millis, Andrew; Rubenstein, Brenda; Han, Qiang | In this work, we combine results from two complementary states of the art many-body methods, Auxiliary Field Quantum Monte Carlo and Dynamical Mean Field Theory, to determine the low-temperature phase diagram of Ca2RuO4. | Session 96: Strontium and Calcium Ruthenates |
| 1368 | Spin-orbit interpretation of the Higgs mode in Ca2RuO4 | Sarte, Paul; Stock, Chris; Ortiz, Brenden; Wilson, Stephen | The role played by spin-orbit coupling in the determination of a system’s magnetism has recently been the subject of intense study, with particular interest being placed on magnets based on Ru 4+ and Ir 4+, revealing a wealth of novel emergent phenomena. | Session 96: Strontium and Calcium Ruthenates |
| 1369 | Strain-mediated Mott transition in Ca2RuO4 induced by a dc current | Zong, Alfred; Kogar, Anshul; Zhao, Hengdi; Li, Qian; Su, Yifan; Marks, Samuel; Cao, Gang; Wen, Haidan; Gedik, Nuh | We find that lattice strain plays a central role in this spatially-inhomogeneous transition, whose temporal evolution is characterized by local fluctuations in temperature. | Session 96: Strontium and Calcium Ruthenates |
| 1370 | Tailoring the ferromagnetic easy axis of Ca2RuO4 via epitaxial strain | Miao, Ludi; Nair, Hari; Schreiber, Nathaniel; Ruf, Jacob; Fu, Matthew; Lee, Yonghun; Chang, Celesta; Ruff, Jacob; Muller, David; Schlom, Darrell; Shen, Kyle | Here, we have grown coherently strained CRO thin films on various substrates including SrLaAlO 4 and YAlO 3 via molecular beam epitaxy and investigated the strain effect on their magnetic properties. | Session 96: Strontium and Calcium Ruthenates |
| 1371 | Imaging the current-driven metal–insulator transition in Ca2RuO4 | Mattoni, Giordano; Yonezawa, Shingo; Nakamura, Fumihiko; Maeno, Yoshiteru | Here, I will present our recent results based on thermal imaging of single-crystal Ca 2RuO 4 while triggering its metal–insulator transition with the flow of direct current. | Session 96: Strontium and Calcium Ruthenates |
| 1372 | Pump-probe Nano-spectroscopy of Mott Insulating Ca2RuO4 | Vitalone, Rocco; Sternbach, Aaron; Foutty, Ben; McLeod, Alexander; Sow, Chanchal; Nakamura, Fumihiko; Maeno, Yoshiteru; Pasupathy, Abhay; Basov, Dmitri | We interpret the response as an initial injection of charge carriers that screen the phonon mode while their thermalization at later times leads to the Drude-like response. | Session 96: Strontium and Calcium Ruthenates |
| 1373 | Magnetic phase tuning in Ca$_2$Ru$_{1-x}$Fe$_x$O$_4$: A structural perspective | Chi, Songxue; Ye, Feng; Cao, Gang; Cao, Huibo; Fernandez-Baca, Jaime | Magnetic phase tuning in Ca$_2$Ru$_{1-x}$Fe$_x$O$_4$: A structural perspective | Session 96: Strontium and Calcium Ruthenates |
| 1374 | Emergence of Competing Stripe Phase near the Mott Transition in Ti-doped Bilayer Calcium Ruthenates | Gangshettiwar, Ashish; Zhu, Yanglin; Peng, Jin; Wang, Yu; Jiang, Zhanzhi; Mao, Zhiqiang; Lai, Keji | Our work provides a model approach to correlate macroscopic properties and mesoscopic phase separation in complex oxides. | Session 96: Strontium and Calcium Ruthenates |
| 1375 | Nano-resolved insulator-metal domain textures in a polar bilayer ruthenate | McLeod, Alexander; Jing, Ran; Wieteska, Jedrzej; Miao, Leixin; Foutty, Ben; Zu, Rui; Chiriaco, Giuliano; Han, Qiang; Puggioni, Danilo; Rondinelli, James; Millis, Andrew; Gopalan, Venkatraman; Mao, Zhiqiang; Alem, Nasim; Pasupathy, Abhay; Basov, Dimitri | Through low-temperature nano-infrared imaging, we reveal a spontaneous striped texture of coexisting insulating and metallic domains in single crystals across their insulator-metal phase transition at T=70-100K. | Session 96: Strontium and Calcium Ruthenates |
| 1376 | Quantum Phase Transitions Go Dynamical | Gurarie, Victor | Quantum Phase Transitions Go Dynamical | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1377 | Information measures for local quantum phase transitions: Lattice bosons in a one-dimensional harmonic trap | Zhang, Yicheng; Vidmar, Lev; Rigol, Marcos | We study ground-state quantum entanglement in the 1D Bose-Hubbard model in the presence of a harmonic trap. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1378 | Low-energy physics in the critical phase of the bilinear-biquadratic spin-1 chain | Binder, Moritz; Barthel, Thomas | We use an efficient density matrix renormalization group (DMRG) algorithm to compute precise dynamic structure factors for the bilinear-biquadratic spin-1 chain with Hamiltonian H = Σ i [cos θ (Si * Si+1) + sin θ (Si * Si+1)2]. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1379 | Entanglement decomposition for the simulation of quantum many-body dynamics | Barthel, Thomas | I will show how this problem can be addressed through entanglement decomposition. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1380 | Energy resolved many-body localization emulated with a superconducting quantum processor | Cheng, Chen; Guo, Qiujiang; Sun, Zhenghang; Mondaini, Rubem; Fan, Heng; Wang, Haohua | In this work, taking advantages of the large degree of tunability of the latter platform and using up to 19 qubits, we report on an energy resolved MBL transition. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1381 | Exact two-spinon contribution to the longitudinal dynamical structure factor of the anisotropic XXZ model with comparison to DMRG simulations | Weichselbaum, Andreas; Zaliznyak, Igor; Castillo, Isaac; Caux, Jean-Sébastien | Exact two-spinon contribution to the longitudinal dynamical structure factor of the anisotropic XXZ model with comparison to DMRG simulations | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1382 | Nonequilibrium steady state of quantum impurities: A numerically-exact tensor-network approach | Lotem, Matan; Schwarz, Frauke; Weichselbaum, Andreas; Von Delft, Jan; Goldstein, Moshe | In order to study such systems, we employ a novel approach where the impurity is coupled to a finite number of lead levels, which in turn are incoherently coupled to baths, resulting in a Lindblad master equation for the density operator of an effective 1D system describing the impurity and the finite leads. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1383 | Anomalous transport and hydrodynamics in 1D quantum systems | Vasseur, Romain; Agrawal, Utkarsh; Gopalakrishnan, Sarang; Ware, Brayden | In this talk, I will explain how anomalous transport can emerge in one-dimensional quantum systems at finite temperature, due to hierarchies of quasiparticle excitations. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1384 | Universal scrambling in gapless quantum spin chains | Nakamura, Shunsuke; Iyoda, Eiki; Deguchi, Tetsuo; Sagawa, Takahiro | In this study, we focus on the one-dimensional spin-1/2 antiferromagnetic XXZ model and investigate the relationship between scrambling and the scale invariance. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1385 | Asymmetry in Forward/Backward Transition Times in Multi-Particle System with Interactions | Shin, Jaeoh; Kolomeisky, Anatoly | We developed a fully analytical theoretical analysis that can describe the observed results. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1386 | Entanglement and matrix elements of observables in interacting integrable systems | LeBlond, Tyler; Mallayya, Krishnanand; Vidmar, Lev; Rigol, Marcos | We study the bipartite von Neumann entanglement entropy and matrix elements of local operators in the eigenstates of an interacting integrable Hamiltonian (the spin-1/2 XXZ chain), and contrast their behavior with that of quantum chaotic systems. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1387 | Nonequilibrium dynamics of static electron-phonon models from Monte Carlo simulations | Weber, Manuel; Freericks, James | In this talk, we present an exact Monte Carlo method to simulate the nonequilibrium dynamics of electron-phonon models in the adiabatic limit of zero phonon frequency. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1388 | Heating rates in periodically driven strongly interacting quantum many-body systems | Mallayya, Krishnanand; Rigol, Marcos | We study heating rates in strongly interacting quantum lattice systems in the thermodynamic limit. | Session 97: Precision many-body physics: Dynamics of 1D quantum systems |
| 1389 | Raman enhancement of PTCDA on monolayer WSe2 | Muccianti, Christine; Badada, Bekele; Zachritz, Sara; Eads, Calley; Garlant, Angel; Monti, Oliver; Schaibley, John | Here, we study a system of monolayer 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) on WSe 2, chosen for its type-II band alignment. | Session 98: Optical Spectroscopy of 2D Materials |
| 1390 | Dark Excitons in Monolayers of Molybdenum based Transition Metal Dichalcogenide | ROBERT, Cedric; Kapuscinski, Piotr; Delhomme, Alex; HAN, Bo; Taniguchi, Takashi; Watanabe, Kenji; Urbaszek, Bernhard; Marie, Xavier; Faugeras, Clement; Potemski, Marek | We have performed similar measurements for other MoX2 monolayers (X=Se or Te) encapsulated in hBN. | Session 98: Optical Spectroscopy of 2D Materials |
| 1391 | Effect of many-body interactions on the valley-selective optical Stark in WS2 | Cunningham, Paul; Hanbicki, Aubrey; Reinecke, Thomas; McCreary, Kathleen; Jonker, Berend | We observe a blue-shift due to the valley-selective optical Stark effect for excitation both below and above resonance, confirming the prediction from this theory that repulsion between virtual excitons dominates the light-matter interactions for photoexcitation detuned from resonance by less than the exciton binding energy. | Session 98: Optical Spectroscopy of 2D Materials |
| 1392 | Direct Observation of Gate-Tunable Dark Trions in Monolayer WSe2 | Wang, Tianmeng; Li, Zhipeng; Lu, Zhengguang; Khatoniar, Mandeep; lian, zhen; Meng, Yuze; Blei, Mark; Taniguchi, Takashi; Watanabe, Kenji; McGill, Stephen; Tongay, Sefaattin; Menon, Vinod; Smirnov, Dmitry; Shi, Sufei | We show that we can control the dark exciton electrostatically by dressing it with one free electron or free hole, forming the dark trions. | Session 98: Optical Spectroscopy of 2D Materials |
| 1393 | Spin-allowed quantum emission from strain confinement in monolayer semiconductors | Yu, Leo; Deng, Minda; Zhang, Jingyuan Linda; Borghardt, Sven; Kardynal, Beata; Vuckovic, Jelena; Heinz, Tony | Here we demonstrate quantum emitter behavior from strained monolayer MoSe 2. | Session 98: Optical Spectroscopy of 2D Materials |
| 1394 | Propagation of excitons in TMDC monolayers with suppressed disorder | Wagner, Koloman; Zipfel, Jonas; Ziegler, Jonas; Causin, Raul; Rosati, Roberto; Brem, Samuel; Kulig, Marvin; Taniguchi, Takashi; Watanabe, Kenji; Malic, Ermin; Glazov, Mikhail; Chernikov, Alexey | We study exciton propagation by directly monitoring their spatial behavior in single layers of TMDCs by spatially- and time-resolved photoluminescence microscopy 2. | Session 98: Optical Spectroscopy of 2D Materials |
| 1395 | Nonlinear responses in inversion-breaking 2D lattices | Ma, Qiong; Zheng, Zhiren; Shen, Huitao; Isobe, Hiroki; Zhang, Yang; Bi, Zhen; Watanabe, Kenji; Taniguchi, Takashi; Fu, Liang; Xu, Suyang; Gedik, Nuh; Jarillo-Herrero, Pablo | In this talk, I will show that a dipole moment of Berry curvature can lead to a strong nonlinear (AC excitation, DC output or double-frequency output) Hall effect in non-magnetic bilayer WTe 2 without external magnetic field. | Session 98: Optical Spectroscopy of 2D Materials |
| 1396 | Polarizability of finite-bandwidth two-dimensional electron gas | Khaliji, Kaveh; Stauber, Tobias; Low, Tony | The two-dimensional electron gas (2DEG), characterized by its parabolic electron energy dispersion, has been the subject of intense research for more than half a century. | Session 98: Optical Spectroscopy of 2D Materials |
| 1397 | Quasiparticle and optical properties of monolayer C3N | Tang, Zhao; Xia, Weiyi; Wu, Yabei; Zhang, Wenqing; Zhang, Peihong | In this work, we present fully converged GW+BSE results for monolayer C 3N. | Session 98: Optical Spectroscopy of 2D Materials |
| 1398 | Hyperbolic Plasmon Polaritons in the Delafossite PdCoO2 | Ruta, Francesco; Khim, Seunghyun; Rimal, Gaurab; Kim, Brian; Kam, Kevin; Sternbach, Aaron; Shao, Yinming; Homes, Christopher; Oh, Seongshik; Mackenzie, Andrew; Basov, Dmitri | Efforts to isolate flat, thin flakes of PdCoO 2 for near-field measurements will be presented. | Session 98: Optical Spectroscopy of 2D Materials |
| 1399 | Directional shift current and dipole selection rules in the layered semiconductor BC2N | Ibañez-Azpiroz, Julen; Souza, Ivo; de Juan, Fernando | Employing a recently developed first-principles Wannier-interpolation technique [2] implemented in the latest release of Wannier90 [3], we find that the photoconductivity exhibits two distinctive features at the band edge. | Session 98: Optical Spectroscopy of 2D Materials |
| 1400 | First-principles calculations for high-harmonic generation in two-dimensional materials: from single atomic layer to thin films | Yamada, Shunsuke; Yabana, Kazuhiro | We present first-principles studies on high-harmonic generation (HHG) in thin materials using the time-dependent density functional theory (TDDFT). | Session 98: Optical Spectroscopy of 2D Materials |
| 1401 | Quasiparticle and optical properties of hexagonal boron nitride: from monolayer to bulk | Xia, Weiyi; Gao, Weiwei; Zhang, Peihong | In this talk, we will present fully converged GW+BSE results for monolayer, bilayer and bulk h-BN, aiming to resolve some of the controversies and illustrate the effects of dielectric screening and interlayer interaction on the quasiparticle and optical properties of this material. | Session 98: Optical Spectroscopy of 2D Materials |
| 1402 | Optical Absorption and Emission of Two-Dimensional Tetracene Crystals | Koo, Seonghyun; Ryu, Sunmin | In this work, we present absorption and emission spectroscopy on single and few-layer tetracene (Tc) layers sandwiched between two-dimensional (2D) inorganic crystals including graphene and hexagonal BN. | Session 98: Optical Spectroscopy of 2D Materials |
| 1403 | Low efficiency of the exciton-phonon scattering involving large momentum transfer in 2D-TMDC | Ramírez, Hanz | In this theoretical work, the effects of the transferred momentum on the exciton-phonon interaction is studied. | Session 98: Optical Spectroscopy of 2D Materials |
| 1404 | An Investigation into the Characteristics of the Superconductive Phase in Heavily P-doped Germanium | Sardashti, Kasra; Nguyen, Tri; Hatefipour, Mehdi; Yuan, Joseph; Mayer, William; Shabani, Javad | In this study, superconducting Ge is realized via ion implantation of Ga, followed by activation annealing. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1405 | Physical properties of Li-based LiPd2M Heusler compounds (M = Si, Ge, Sn) | Górnicka, Karolina; Kuderowicz, Gabriel; Wiendlocha, Bartomiej; Carnicom, Elizabeth; Cava, Robert; Klimczuk, Tomasz | Electronic structure, phonons and electron-phonon interaction functions were computed using the density functional theory. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1406 | Layered tin pnictides as a new class of layered superconductors | Goto, Yosuke; Mizuguchi, Yoshikazu | We report SnPn-based (Pn: pnictogen) materials as a new class of layered superconductors. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1407 | Interface superconductivity in complex metal-oxide heterostructures | Brojabasi, Priyanka; Hardy, Guillaume; Fournier, Patrick | In the present study, we have grown SS of infinite-layer SrCuO 2 (SCO) and LFO as well as SS of electron-doped (Sr,Nd)CuO 2 (SNCO) and LFO by pulsed-laser deposition with various thicknesses and annealing conditions. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1408 | Electron-Hole Competition and Structural Response in the Two-Band Superconductor Nb2PdxSe5 | Neu, Jennifer; Graf, David; Wei, Kaya; Gaiser, Alyssa; Xin, Yan; Albrecht-Schmitt, Thomas; Baumbach, Ryan; Singh, David; Siegrist, Theo | We observe a pivotal shift in the atomic positions that depend on palladium occupancy at the threshold for superconductivity. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1409 | Characterizating the penetration depth and coherence length of superconductor-normal superlattices | Quarterman, Patrick; Satchell, Nathan; Kirby, Brian; Loloee, Reza; Burnell, Gavin; Birge, Norman; Borchers, Julie | In this work, we report on our observation of an increased penetration depth and decreased coherence length in Nb/Al and Nb/Au superlattices utilizing polarized neutron reflectometry and electrical transport, respectively. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1410 | Study of electronic properties and mechanical dissipation in epitaxially grown La2-xSrxCuO4 thin films using scanning probe microscopy | Little, Larissa; Wang, Xuguang; Gong, Wenjie; Yildiz, Dilek; Hoffman, Jason; Hoffman, Jennifer | Here we use the techniques of non-contact atomic force microscopy (nc-AFM) and scanning tunneling spectroscopy (STS) in ultrahigh vacuum to characterize thin films of La 2-xSr xCuO 4 (LSCO). | Session 99: Superconductivity: Materials, Growth, Structure |
| 1411 | Acoustic Phonon Dynamics and Optical Properties of Bi-2212 Crystals | McNiven, Brad; Andrews, G.; LeBlanc, James | Acoustic phonon behaviour and optical properties of bulk Bi-2212 crystals at room temperature were probed using Brillouin light scattering spectroscopy and refined optical contrast methods. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1412 | Electron counting and chemical complexity in theTa-Nb-Hf-Zr-Ti HEA superconductors | Von Rohr, Fabian; Cava, Robert | In this presentation, we will show that the properties of these superconducting HEAs are strongly related to the electron count and that the T cs of these alloys fall between those of analogous crystalline and amorphous materials [1-3]. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1413 | Enhancement of Superconductivity in Monolayer NbSe2 | Yi, Hemian; Pillsbury, Timothy; Xiao, Run; Wang, Fei; Dong, Chengye; Zhao, Yifan; Wang, Guang; zhou, lingjie; zhang, ling; ROBINSON, JOSHUA; Chan, Moses; Samarth, Nitin; Chang, Cui-Zu | Here, we explored the possibility of similar physics in monolayer NbSe 2 on n-type and p-type graphene substrates and found that the transition temperature is much higher in the latter heterostructures than in the former ones. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1414 | MBE synthesis, ARPES and STM characterization of DyBa2Cu3O7-δ thin films | Wu, Zebin; Putzky, Daniel; Kundu, Asish; Li, Hui; Logvenov, Gennady; Keimer, Bernhard; Fujita, Kazuhiro; Valla, Tonica; Drozdov, Ilya | MBE synthesis, ARPES and STM characterization of DyBa2Cu3O7-δ thin films | Session 99: Superconductivity: Materials, Growth, Structure |
| 1415 | Growth and electrical transport properties of (110) YBa2Cu3O7 / (110) PrBa2(Cu0.8Ga0.2)3O7 heterostructure | Kandel, Hom; Arndt, Nathan; Li, Jungwoo; Eom, Chang-Beom | We performed pulsed laser-based thin film deposition and study of electrical transport properties on (110)-oriented YBa 2Cu 3O 7 (YBCO)/ (110)-oriented PrBa 2(Cu 0.8Ga 0.2) 3O 7 heterostructure for the nanofabrication of Superconductor (S) / Insulator (I) / Superconductor (S) tunneling Josephson junction device which may have many advantages over the conventional low-temperature superconductor-based Josephson junction devices including low cost, cryogenic system simplicity, and high IcRn product (with Ic being the junction critical current and Rn the normal resistance). | Session 99: Superconductivity: Materials, Growth, Structure |
| 1416 | Magnetic and superconducting properties of the Ir – rich compounds MIr3 (M=Ce, Th and Nd) | Górnicka, Karolina; Carnicom, Elizabeth; Das, Debarchan; Gutowska, Sylwia; Wiendlocha, Bartomiej; Xie, Weiwei; Cava, Robert; Kaczorowski, Dariusz; Klimczuk, Tomasz | Recently we have synthesized and studied CeIr 3, NdIr 3 and ThIr 3 compounds that are members of the RE 2m+n T 4m+5n family (m, n > 0). | Session 99: Superconductivity: Materials, Growth, Structure |
| 1417 | Effects of heteroepitaxy on the crystal structure in superconducting DyBa2Cu3O7-x thin films | Putzky, Daniel; Radhakrishnan, Padma; Christiani, Georg; Wochner, Peter; Wang, Yi; van Aken, Peter; Logvenov, Gennady; Benckiser, Eva; Keimer, Bernhard | We employed synchrotron-based X-ray diffraction (XRD) to determine structural differences imposed by the heteroepitaxy with substrates with varying lattice parameters and crystal symmetry. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1418 | Properties of Superconducting R2O2Bi (R = Y, Er) with Anti-ThCr2Si2-type Structure | Xu, Zhuan | We have investigated two compounds Ce 2O 2Bi and Er 2O 2Bi by measuring transport and magnetic properties, as well as specific heat. | Session 99: Superconductivity: Materials, Growth, Structure |
| 1419 | Effect of strain on critical temperature and Pauli-limit critical field of Sr2RuO4 with separable pairing interaction | YU, Yue; Brown, Stuart; Raghu, Srinivas | We study the critical temperature and Pauli-limit critical field of Sr2RuO4 as a function of uniaxial strain. | Session 100: Superconductivity in Ruthenates |
| 1420 | Development of new phase in ruthenium oxides using molecular beam epitaxy method | Sakoda, Masahito; Higashiizumi, Mizuki; Tanda, Satoshi | At the day, We will report the challenge to fabricate the Ca 2RuO 4 films which show metallic or superconductivity. | Session 100: Superconductivity in Ruthenates |
| 1421 | Superconducting Sr2RuO4 thin film growth by controlling the structural defects | Kim, Jinkwon; Mun, Junsik; Palomares-Garcia, Carla; Kim, Jeong Rae; Wang, Lingfei; Chang, Seo Hyoung; Kim, Miyoung; Chung, Suk Bum; Kim, Changyoung; Robinson, Jason; Maeno, Yoshiteru; Noh, Tae Won | In this presentation, we will present our Sr 2RuO 4 film growth focused on the suppression of OPBs. | Session 100: Superconductivity in Ruthenates |
| 1422 | Mimicking superconductivity of Sr2RuO4 using SrRuO3-SrTiO3 superlattice | Kim, Bongjae; Khmelevskyi, Sergii; Franchini, Cesare; Mazin, Igor; Kim, Kyoo | The putative chiral spin-triplet superconductivity in ruthenate is under intense controversy, where the various theoretical and experimental studies discuss the diverse alternative pairing symmetries. | Session 100: Superconductivity in Ruthenates |
| 1423 | Pairing symmetry of SrRuO3-SrTiO3 ruthenate superlattice | Han, Jae-Ho; Kim, Kyoo; Kim, Bongjae | From a DFT calculation, we construct a tight-binding Hamiltonian and search for the pairing symmetry of the heterostructure by calculating the superconducting phase transition temperature. | Session 100: Superconductivity in Ruthenates |
| 1424 | Constraints on the superconducting order parameter in Sr2RuO4 from oxygen-17 nuclear magnetic resonance | Pustogow, Andrej; Luo, Yongkang; Chronister, Aaron; Su, Yue-Shun; Sokolov, Dmitry; Jerzembeck, Fabian; Mackenzie, Andrew P.; Hicks, Clifford; Kikugawa, Naoki; Raghu, Srinivas; Bauer, Eric; Brown, Stuart | We discuss the issue of sample heating on a sub-millisecond time scale after the NMR pulse, which is particularly relevant to superconductors with a small transition temperature ( T c ≈ 1 K). | Session 100: Superconductivity in Ruthenates |
| 1425 | Reduced spin suscpetibility in superconducting Sr2RuO4 measured by polarized neutron diffraction | Petsch, Alexander; Zhu, Mengze; Maeno, Yoshiteru; Mao, Zhiqiang; Enderle, Mechthild; Hayden, Stephen | Herein, we present new data on the magnetic susceptibility in Sr 2RuO 4 collected by polarized neutron scattering. | Session 100: Superconductivity in Ruthenates |
| 1426 | Understanding reduced NMR signals in Sr2RuO4 | Lindquist, Austin; Kee, Hae-Young | We propose inter-orbital spin triplet pairing based on the Hund’s and spin-orbit coupling [2], and study the NMR signals with and without uniaxial strain. | Session 100: Superconductivity in Ruthenates |
| 1427 | Muon spin relaxation studies of time-reversal symmetry breaking superconductivity in Sr2RuO4 along with the application of uniaxial stress and disorder | Ghosh, Shreenanda; Grinenko, Vadim; Brückner, Felix; Sarkar, Rajib; Orain, Jean-Christophe; Nikitin, Artem; Das, Debarchan; Guguchia, Zurab; Park, Joonbum; Barber, Mark; Kikugawa, Naoki; Bobowski, Jake; Sokolov, Dmitry; Miyoshi, Takuto; Maeno, Yoshiteru; Mackenzie, Andrew; Luetkens, Hubertus; Hicks, Clifford; Klauss, Hans-Henning | We report a large stress-induced splitting between the onset temperatures of superconductivity and TRSB transitions observed by muon spin relaxation (µSR) measurements under uniaxial stress. | Session 100: Superconductivity in Ruthenates |
| 1428 | Spin-orbital coupling and spin-triplet pairing symmetry in Sr2RuO4 | Wang, Xin; Wang, Zhiqiang; Kallin, Catherine | We discuss how SOC lifts the degeneracy among different p-wave pseudospin-triplet pairing states in a widely used microscopic model for Sr 2RuO 4 combining a Ginzburg-Landau free energy expansion, a symmetry analysis of the model, and numerical weak-coupling renormalization group, as well as random phase approximation, calculations. | Session 100: Superconductivity in Ruthenates |
| 1429 | Strontium Ruthenate’s Superconducting Symmetries from First-Principles Calculations | Gingras, Olivier; Cote, Michel; Nourafkan, Reza; Tremblay, Andre-Marie | We present the leading gap function symmetries obtained by solving the frequency-dependent linearized Eliashberg equation for the case where spin-orbit coupling is neglected [2]. | Session 100: Superconductivity in Ruthenates |
| 1430 | Effects of spin-orbit coupling on the superconducting pairing in Sr2RuO4 | Huang, Wen; Zhou, Yi; Yao, Hong | We focus on two aspects of the SOC-influenced superconductivity in Sr 2RuO 4. | Session 100: Superconductivity in Ruthenates |
| 1431 | Emergence of high-temperature superconductivity in a Ca2RuO4 nanocrystals | Nobukane, Hiroyoshi; Yanagihara, Kosei; Kunisada, Yuji; Ogasawara, Yunito; Isono, Kakeru; Nomura, Kazushige; Tanahashi, Keita; Nomura, Takahiro; Akiyama, Tomohiro; Tanda, Satoshi | Here we report the realization of high-temperature superconductivity in Ca 2RuO 4 nanofilm single crystals. | Session 100: Superconductivity in Ruthenates |
| 1432 | Possible ‘symmetry-imposed’ near-nodal superconducting pairing in Sr2RuO4 | Li, Yu; Huang, Wen | Possible ‘symmetry-imposed’ near-nodal superconducting pairing in Sr2RuO4 | Session 100: Superconductivity in Ruthenates |
| 1433 | Chasing signs of the Kelvin-wave cascade on a single vortex using nanoscale mechanical resonators | Autti, Samuli; Guthrie, Andrew; Haley, Richard; Kafanov, Sergey; Noble, Mark; Pashkin, Yuri; Pickett, George; Tsepelin, Viktor; Zmeev, Dmitry | In our experiments we use nanoscale mechanical resonators operating at about 1MHz, immersed in superfluid 4He [1]. | Session 101: Helium and Exotic Quantum Fluids |
| 1434 | Suppression of triplet superfluidity near magnetically-active surfaces | Vorontsov, Anton | I will review existing models of magnetic scattering to prove that they cannot, in principle, give such suppression of the A phase. | Session 101: Helium and Exotic Quantum Fluids |
| 1435 | Emergence of a New Superfluid Phase in Quasi-2D 3He | Shook, Alexander; Vadakkumbatt, Vaisakh; Senarath Yapa Arachchige, Pramodh; Doolin, Callum; Boyack, Rufus; Kim, Paul; Popowich, Greg; Souris, Fabien; Christani, Holly; Maciejko, Joseph; Davis, John | In doing so we have observed a new phase transition which is stabilized by confinement and thought to be due to the breaking of translational symmetry within the superfluid slab. | Session 101: Helium and Exotic Quantum Fluids |
| 1436 | Memory Effect and the Metastability of the A to B Transition in Superfluid 3He. | Lotnyk, Dmytro; Eyal, Anna; Zhelev, Nikolay; Abhilash, T.S.; Wilson, John; Terilli, Michael; Chavez, Aldo; Smith, Eric; Mueller, Erich; Parpia, Jeevak | We experimentally study the metastability of the A phase of superfluid 3He, as either temperature ( T) or pressure ( P) is varied. | Session 101: Helium and Exotic Quantum Fluids |
| 1437 | Mott Insulator to Superfluid Quantum Phase Transition for Helium on Strained Graphene | Yu, Jiangyong; Nichols, Nathan; Lakoba, Taras; Kotov, Valeri; Del Maestro, Adrian | We show that a critical ratio of the onsite repulsion to hopping strength (U/t) can be achieved via strain, allowing for a quantum phase transition to a superfluid state below a critical value. | Session 101: Helium and Exotic Quantum Fluids |
| 1438 | Modelling a Neutron Star in Superfluid Helium | Zieve, Rena; Prater, Robert | We discuss a lab experiment intended to model neutron star behavior. | Session 101: Helium and Exotic Quantum Fluids |
| 1439 | Few-body precursor of the Higgs mode in a superfluid Fermi gas – from theory to experiments. | Bjerlin, Johannes | We demonstrate the presence of an undamped few-body precursor of the Higgs mode in an ultracold trapped Fermi gas. | Session 101: Helium and Exotic Quantum Fluids |
| 1440 | A doping-dependent switch from one- to two-component electron-hole superfluidity with high transition temperatures in coupled TMD monolayers. | Conti, Sara; Perali, Andrea; Neilson, David; Peeters, Francois | Electron-hole (e-h) superfluidity in a Transition Metal Dichalcogenide heterostructure consisting of coupled MoSe 2-WSe 2 monolayers, is investigated using mean-field approach. | Session 101: Helium and Exotic Quantum Fluids |
| 1441 | Anomalous phase fluctuations of a superfluid flowing in a random potential | Haga, Taiki; Ueda, Masahito | In this study, we investigate the stability of the off-diagonal long-range order of a superfluid flowing in a weak random potential [1]. | Session 101: Helium and Exotic Quantum Fluids |
| 1442 | Disordered Creutz lattice: The role of flat bands in superfluid behavior | Cheng, Chen; Batrouni, George; Mondaini, Rubem | In this presentation, we will show results for the disordered Hubbard model with attractive interactions in the presence of flat or dispersive bands, checking the influence topological properties may possess in stabilizing the superfluid behavior in this interacting system. | Session 101: Helium and Exotic Quantum Fluids |
| 1443 | The Dynamical Structure Factor of a Fermionic Super-solid on an Optical Lattice | Kelly, Patrick; Vitali, Ettore; Lopez, Annette; Galli, Davide; Bertaina, Gianluca | We perform a Quantum Monte Carlo simulation and study of a cold atomic Fermi gas on a 2D optical lattice. | Session 101: Helium and Exotic Quantum Fluids |
| 1444 | Density-wave steady-state phase of dissipative ultracold fermions with nearest-neighbor interactions | Titvinidze, Irakli; Panas, Jaromir; Pasek, Michael; Dhar, Arya; Qin, Tao; Geissler, Andreas; Hafez-Torbati, Mohsen; Sorantin, Max E.; Hofstetter, Walter | In the current work, we investigate the effect of local dissipation on the presence of density-wave ordering in spinful fermions with both local and nearest-neighbor interactions, as described by the extended Hubbard model [1]. | Session 101: Helium and Exotic Quantum Fluids |
| 1445 | Squeezed Photons Reconsidered | Bowen, Samuel; Mancini, Jay | The matrix method used and the simplest approximation for the generation of squeezed photons is presented. | Session 101: Helium and Exotic Quantum Fluids |
| 1446 | Anomalous hydrodynamics in condensed matter systems | Abanov, Alexandre | I will describe some manifestations of the odd viscosity. | Session 101: Helium and Exotic Quantum Fluids |
| 1447 | Collective modes for a Fermi Liquid under Harmonic Trap | Shao, Yuelin; Dai, Xi | Based on the Boltzmann transport equation of quasi-particles, we examine the low energy excitations of a normal Fermi liquid conned in a two dimensional harmonic trap. | Session 101: Helium and Exotic Quantum Fluids |
| 1448 | Optical Second-Harmonic Interference in Two-Dimensional Heterostructures | Kim, Wontaek; Ryu, Sunmin | In this talk, I will present our recent findings on SHG interference occurring in 2D TMD heterostructures. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1449 | Interlayer Exciton in atomically reconstructed MoSe2/WSe2 van der Waals Heterostructure | Chuang, Hsun jen; Hanbicki, Aubrey; Rosenberger, Matthew; Oleshko, Vladimir; McCreary, Kathleen; Sivaram, Saujan; Mazin, Igor; Jonker, Berend | Interlayer Exciton in atomically reconstructed MoSe2/WSe2 van der Waals Heterostructure | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1450 | Nonradiative energy transfer enhances Raman intensity in layered heterostructure | Dandu, Medha; Watanabe, Kenji; Taniguchi, Takashi; Sood, Ajay; Majumdar, Kausik | We achieve a ten-fold Raman enhancement of a monolayer transition metal dichalcogenide (1L-TMD, such as 1L-MoS 2 and 1L-WS 2) stacked on a multilayer SnSe 2. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1451 | Circular emission under linear excitation from interlayer excitons in WSe2/MoSe2 heterobilayer | Lu, Xin; Li, Weijie; Dubey, Sudipta; Srivastava, Ajit | We report circularly polarized emission from interlayer excitons in WSe 2/MoSe 2 heterobilayer under linear excitation at zero magnetic field. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1452 | Dipole-dipole interactions between localized interlayer excitons in WSe2/MoSe2 heterobilayer | Li, Weijie; Lu, Xin; Dubey, Sudipta; Devenica, Luka Matej; Srivastava, Ajit | We explored localized interlayer excitons in WSe 2/MoSe 2 heterobilayer by low temperature (~ 4K) photoluminescence spectroscopy. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1453 | Confinement of long-lived interlayer excitons in WSe2/WS2 heterobilayers | Montblanch, Alejandro; Kara, Dhiren; Paradeisanos, Ioannis; Purser, Carola; Wang, Gang; Latawiec, Pawel; Loncar, Marko; Tongay, Sefaattin; Ferrari, Andrea; Atature, Mete | Here, we create ultra-long-lived IX and demonstrate they can be trapped – an important prerequisite for future investigations. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1454 | Mechanically tunable nonlinear optics from a van der Waals interface in twisted hexagonal boron nitride heterostructures | Finney, Nathan; Yao, Kaiyuan; Moore, Samuel; Liu, Fang; Ardelean, Jenny; Xu, Xinyi; Watanabe, Kenji; Taniguchi, Takashi; Zhu, Xiaoyang; Basov, Dmitri; Dean, Cory; Schuck, P. James; Hone, James | In the bulk limit, the second harmonic generation (SHG) response from hexagonal boron nitride (BN) includes electric quadrupole and dipole contributions. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1455 | Interlayer Exciton Fine Structure in MoSe2/WSe2 Heterostructure | Miao, Shengnan; Wang, Tianmeng; Li, Zhipeng; Lu, Zhengguang; Shi, Sufei | In this work, we present a comprehensive study of the interlayer excitons through gate-dependent, magnetic-field dependent spectroscopy study. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1456 | Evidence of Purely Electronic Lattice at Interface of TMD/Bi2Se3 2D Heterostructures Induced by Strong Interlayer Coupling | Hennighausen, Zachariah; Lane, Christopher; Buda, Ioana; Mathur, Vineet; Bansil, Arun; Kar, Swastik | This talk shows experimental and theoretical indications of a real-space, non-atomic lattice formed by significant charge redistribution in vertically stacked Bi 2Se 3/Transition Metal Dichalcogenide (TMD) 2D heterostructures. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1457 | Investigation of interfacial charge transfer in hybrid system of Graphene-MoS2 | Pourianejad, Sajedeh; Aryeetey, Frederick; Ayodele, Olubunmi; Aravamudhan, Shyam; Ignatova, Tetyana | Investigation of interfacial charge transfer in hybrid system of Graphene-MoS2 | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1458 | Trion light emission in type-I WSe2/MoTe2 van der Waals heterostructures | Bae, Hyemin; KIM, SUK HYUN; Lee, Seungmin; Karni, Ouri; O’Beirne, Aidan; Barré, Elyse; Sim, Sangwan; Heinz, Tony; Choi, Hyunyong | Here we perform photoluminescence (PL), reflection contrast (RC) and photoluminescence excitation (PLE) to investigate vdW type-I heterostructures. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1459 | The bright side of defects in MoS2 and WS2 and a generalizable chemical treatment protocol for defect passivation | Bretscher, Hope; Li, Zhaojun; Xiao, James; Qiu, Diana; Refaely-Abramson, Sivan; Alexander-Webber, Jack; Tanoh, Arelo; Fan, Ye; Delport, Geraud; Williams, Cyan; Vignolini, Silvia; Stranks, Sam; Hofmann, Stephan; Louie, Steven; Neaton, Jeffrey; Rao, Akshay | In this work, we illustrate how TFSI superacid treatment reveals an optical subgap state associated with sulfur vacancies. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1460 | Probing the nonlinear response of strongly coupled plasmon-WSe2 system | Li, Chentao; Lu, Xin; Srivastava, Ajit; Harutyunyan, Hayk | In this work, gold nanorods and WSe 2 flakes (TMD material) are successfully assembled to investigate the strong light-matter interaction. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1461 | Homogeneous Broadening of Excitons in Bilayer MoSe2 | Sampson, Kevin; Helmrich, Sophia; Young, Carter; Owschimikow, Nina; Embley, Jacob; Hao, Kai; Woggon, Ulrike; Li, Xiaoqin (Elaine) | Exciton resonances form at the K points on the Brillouin zone boundary in both the monolayers and bilayers, however, we find that their quantum dynamics differ drastically. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1462 | Electron relaxation and motion at coplanar 1T’/2H MoTe2 homojunction imaged by time-resolved photoemission electron microscopy | Hu, Aiqin; Xu, Xiaolong; Liu, Wei; Sun, Quan; Gong, Qihuang; Ye, Yu; Lu, Guowei | Here, employing the femtosecond time-resolved photoemission electron microscopy with an energy analyzer, we demonstrate imaging of carrier dynamics in space and time after photoexcitation at 1T’/2H MoTe 2 coplanar homojunction, a seamlessly contacted metal/semiconductor interface. | Session 102: Optical Spectroscopy of Heterostructures of 2D Materials |
| 1463 | Precision experiments at ultralow temperatures enabled by quantum technology and superconducting electronics | Enss, Christian | Here we will discuss a specific kind of cryogenic detector, namely a metallic magnetic calorimeter (MMC) consisting of an absorber suitable for the particles to be detected, in close thermal contact with a paramagnetic temperature sensor. | Session 103: New Physics and Quantum Technology at Ultra-Low Temperatures |
| 1464 | Topological Superfluid 3He under mesoscopic confinement | Saunders, John | We show that magnetic surface scattering leads to an unexpectedly large suppression of the transition temperature, corresponding to an increased density of low energy bound states. | Session 103: New Physics and Quantum Technology at Ultra-Low Temperatures |
| 1465 | Superconducting Quantum Circuits for Quantum Computing and Quantum Simulation | Koch, Jens | I will review the journey from the early superconducting qubits to presently employed circuits with coherence times in the micro- to millisecond range, and discuss the ongoing development of even more robust superconducting qubits with intrinsic error protection. | Session 103: New Physics and Quantum Technology at Ultra-Low Temperatures |
| 1466 | Innovation at the cold frontier for current and future quantum devices and sensors | Haley, Richard; Autti, Samuli; Bradley, David; Guénault, Anthony; Jones, Alexander; Kafanov, Sergey; Pashkin, Yuri; Pickett, George; Poole, Malcolm; Prance, Jonathan; Thompson, Michael; Tsepelin, Viktor; Zmeev, Dmitry | This talk will describe some of our recent research highlights including: the discovery of super-critical superfluid condensate flow; exploiting high quality factor nanomechanical resonators as force sensors over many orders of magnitude; and developing new techniques for delivering microkelvin electron temperatures in nano-fabricated on-chip devices. | Session 103: New Physics and Quantum Technology at Ultra-Low Temperatures |
| 1467 | Research in quantum fluids, where are we? | Lee, Yoonseok | In this paper, we present a review of the recent progresses in the field of quantum fluids with a forward-looking perspective. | Session 103: New Physics and Quantum Technology at Ultra-Low Temperatures |
| 1468 | T-linear resistivity and spectroscopy of hot metals and cold atoms: DMFT, SYK and beyond | Georges, Antoine | I will emphasize some commonalities between these approaches, and assess what is established at this point and which questions are still open. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1469 | SYK non-Fermi-liquid solution of the Hubbard model | Kim, Aaram; Werner, Philipp; Kozik, Evgeny | In the atomic (zero-hopping) limit, the solution corresponds to the unphysical branch of the Luttinger-Ward functional, for which the SYK model is the exact solution at the second order. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1470 | Variational Schrieffer-Wolff Transformations for Quantum Many-body Dynamics | Wurtz, Jonathan; Claeys, Pieter; Polkovnikov, Anatoli | Building on recent results for adiabatic gauge potentials, we propose a variational approach for computing the generator of Schrieffer-Wolff transformations, and demonstrate its accuracy in spin chains and fermionic systems. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1471 | Investigating non-integrable quantum many-body systems with sub-exponential computational effort | Hosur, Pavan | In this talk, an algorithm will be presented that enables quantitative predictions based on the ETH. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1472 | Space- and time-crystallization effects in multicomponent superfluids | Svistunov, Boris; Prokof’ev, Nikolai | We observe that space- and time-crystallization effects in multicomponent superfluids—while having the same physical origin and mathematical description as in the single-component case—are conceptually much more straightforward. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1473 | A generic quantum Monte Carlo approach for electronic correlations in out-of-equilibrium systems. | Bertrand, Corentin; Florens, Serge; Parcollet, Olivier; Waintal, Xavier | We propose a systematic approach to the non-equilibrium dynamics of strongly interacting many-body quantum systems, building upon the standard perturbative expansion in the Coulomb interaction. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1474 | Dynamic Behavior of Strongly Coupled Quantum Dots | Dumitrescu, Philipp; Maček, Marjan; Bertrand, Corentin; Waintal, Xavier; Parcollet, Olivier | We study a system of strongly correlated quantum dots, using a recently developed diagrammatic quantum Monte Carlo approach. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1475 | Dynamical properties of the spin-boson model using real-time quantum Monte Carlo | Goulko, Olga; Cohen, Guy; Goldstein, Moshe; Chen, Hsing-Ta | We present results for the real-time dynamics of the spin-boson model (a two-state system coupled to a bath of non-interacting harmonic modes) using the inchworm Monte Carlo algorithm. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1476 | Reconstructing Nonequilibrium Regimes of Quantum Many-Body Systems from the Analytical Structure of Perturbative Expansions | Bertrand, Corentin; Florens, Serge; Parcollet, Olivier; Waintal, Xavier | We present a systematic approach to the nonequilibrium dynamics of strongly interacting many-body quantum systems, building upon the standard perturbative expansion in the Coulomb interaction. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1477 | Time-symmetric stochastic action in curved phase-space | Drummond, Peter; Reid, Margaret; Joseph, Ria | Of more fundamental significance is that it provides an ontological model of reality [2] in cosmological models, and allows an interpretation of objective measurement without wave-function collapse. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1478 | Bounding the finite-size error for simulations of quantum many-body systems | Wang, Zhiyuan; Hazzard, Kaden; Feig, Michael | In this talk I present rigorous upper bounds on finite size error of local observables measured in gapped ground states of locally-interacting systems, as well as in real time quench dynamics simulations initiated from a product state. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1479 | Thermofield theory for finite-temperature many-body physics | Harsha, Gaurav; Henderson, Thomas; Scuseria, Gustavo | In this talk, I will present our recently developed framework (arXiv:1901.06753 and 1907.11286) which shows how the thermofield theory can be utilized to construct finite-temperature generalizations of ground-state wave function methods. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1480 | Analytical continuation of transport functions with deep neural networks | Verret, Simon; Nourafkan, Reza; Desrosiers, Samuel; Tremblay, Andre-Marie | In this work, we extend the use of deep neural networks to the case of the longitudinal conductivity, in particular the DC-conductivity. | Session 104: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |
| 1481 | Unconventional superconductivity in Sr2RuO4 probed under stressed conditions | Brown, Stuart | Recent studies instead revealed a factor 2.5 increase in the transition temperature of stressed samples, motivating us to probe the evolution of the normal and superconducting states using 17O NMR. | Session 105: Recent Experimental Surprises in Strongly Correlated Superconductors |
| 1482 | Re-measurement of Knight-shift on Superconducting Sr2RuO4 | Ishida, Kenji; Kinjo, Katsuki; Manago, Masahiro; Kitagawa, Shunsaku; Maeno, Yoshiteru | We reported that the Knight shift at the Ru and O sites in Sr 2RuO 4 is invariant on passing through T c.[1,2]. | Session 105: Recent Experimental Surprises in Strongly Correlated Superconductors |
| 1483 | A laser-sharp view of electron correlations in Sr2RuO4 | Tamai, Anna | We used laser-based angle-resolved photoemission spectroscopy to explore the interplay of electron-electron correlations and spin-orbit coupling in the model Fermi liquid Sr 2RuO 4. | Session 105: Recent Experimental Surprises in Strongly Correlated Superconductors |
| 1484 | Magnetic excitations and their possible role in the superconducting pairing in Sr2RuO4 | Braden, Markus; Kunkemöller, Stefan; Jenni, Kevin; Steffens, Paul; Sidis, Yvan; Mao, Zhiqiang; Mazin, Igor; Maeno, Yoshiteru | Only by use of polarized neutron scattering we can determine the strength and characteristics of the ferromagnetic response, which agrees with reports of specific heat, magnetic susceptibility and NMR. | Session 105: Recent Experimental Surprises in Strongly Correlated Superconductors |
| 1485 | Ferromagnetic order beyond the superconducting dome in a cuprate superconductor | Sarkar, Tarapada | In this talk, I will report experiments that show the emergence of itinerant ferromagnetic order (FM) below 4K for doping beyond the SC dome in the electron-doped cuprate La 2−xCe xCuO 4 (LCCO). | Session 105: Recent Experimental Surprises in Strongly Correlated Superconductors |
| 1486 | A novel surface reconstruction of the TiO2 Anatase (001) surface from machine learning | Amsler, Maximilian; Aschauer, Ulrich | To alleviate this issue, we use a machine-learned interatomic potential trained on DFT data in conjunction with a sophisticated structure prediction method to explore low-energy reconstructions of the TiO 2 Anatase (001) surface. | Session 106: Semiconductor Films and Interfaces |
| 1487 | Theoretical investigation of the GaN (0001) surface reconstruction | AlQuaiti, Fatima; Demkov, Alexander | Using density functional theory we study the surface reconstruction of GaN (0001). | Session 106: Semiconductor Films and Interfaces |
| 1488 | Two-dimensional overlayers of Au and Ag on the Ge(111) surface: insights from first-principles calculations | Acharya, Shree Ram; Chiang, Shirley; Rahman, Talat | We will compare the electronic and vibrational structures of additional overlayer structures and strain on those systems to trace the reason behind such a difference in observed structures. | Session 106: Semiconductor Films and Interfaces |
| 1489 | 3D atomic mapping of rutile-TiO2(110) supported Vanadium oxide catalyst using X-ray Standing Wave excited XPS | Das, Anusheela; Chen, Yanna; Lee, Tien-Lin; Narayanachari, KVLV; Bedzyk, Michael | 3D atomic mapping of rutile-TiO2(110) supported Vanadium oxide catalyst using X-ray Standing Wave excited XPS | Session 106: Semiconductor Films and Interfaces |
| 1490 | Combinatorial Synthesis of a New II-IV-N2: MgSnN2 | Greenaway, Ann; Loutris, Amanda; Heinselman, Karen; Melamed, Celeste; Schnepf, Rekha; Tellekamp, Marshall; Woods-Robinson, Rachel; Sherbondy, Rachel; Bardgett, Dylan; Lany, Stephan; Christensen, Steven; Tamboli, Adele | We demonstrate combinatorial co-sputtering of a new II-IV-N 2, MgSnN 2, in a phase-pure wurtzite structure across a range of cation compositions and from 200 to 400 °C. Below 200 °C, a metastable rocksalt phase is observed which is a potential wide bandgap, high dielectric constant material. | Session 106: Semiconductor Films and Interfaces |
| 1491 | Temperature-Dependent Spectroscopy of Rutile Tin Dioxide | Alghamdi, Hawazin; Concepcion, Benjamin; Chowdhury, Sugata; Misra, Prabhakar | We have demonstrated a red-shift in the Raman spectra as the temperature increases for both Α 1g (634 cm -1) and B 2g (775 cm -1), while E g (475 cm -1) exhibited little change. | Session 106: Semiconductor Films and Interfaces |
| 1492 | First-Principles Theory for Schottky Barrier Height | Skachkov, Dmitry; Zhang, Xiaoguang; Cheng, Hai-ping | In current work we are developing the first-principles theory for the Schottky barrier height. | Session 106: Semiconductor Films and Interfaces |
| 1493 | Targeted High-Throughput Growth and Automated Phase Mapping of the Novel Semiconductor Zn2SbN3 Using the Analysis Package COMBIgor | Mis, Allison; Arca, Elisabetta; Brennecka, Geoff; Tamboli, Adele | In this work, we will present semi-automated phase identification and targeted sputter growth of the novel semiconducting material Zn 2SbN 3, to date the only reported crystalline antimony nitride in which Sb functions as a cation with a positive oxidation state. | Session 106: Semiconductor Films and Interfaces |
| 1494 | Transition-metal nitride semiconductors | Wang, Baiwei; Nawarat, Poomirat; Lewis, Kim; Patsalas, Panos; Gall, Daniel | We report on the epitaxial growth and the electrical and optical properties of Ti 1−xMg xN, Ti 1−xMg xC 0.2N 0.8, and (Ti 0.5Mg 0.5) 1−xAl xN on MgO(001) and (Ti 1−xMg x) 0.25Al 0.75N on Al 2O 3(0001). | Session 106: Semiconductor Films and Interfaces |
| 1495 | Unpinning the relationship between pinning factor and electronegativity by calculating Schottky barrier heights from first principles | Hall, Nicole; Dabo, Ismaila | We calculate the Schottky barriers that develop at the interface between a metal and semiconductor. | Session 106: Semiconductor Films and Interfaces |
| 1496 | Ultrafast Electron Diffraction of Monoclinic GaTe and the Dynamic Breaking of Friedel’s Law | Qian, Qingkai; Shen, Xiaozhe; Jia, Lanxin; Li, Renkai; Yang, Jie; Luo, Duan; Wang, Xijie; Huang, Shengxi | Besides the Debye-Waller effect caused by the incoherent electron-phonon coupling, we observed a coherent breathing phonon mode in GaTe. | Session 106: Semiconductor Films and Interfaces |
| 1497 | Temperature dependent X-ray studies of negative thermal expansion (NTE) ScF3 thin films under strain | Jayakody, Amani; Zhang, Zhiwei; Zhu, Zhihai; Whitelock, Hope; Budnick, Joseph; Hancock, Jason; Wells, Barrett | This report describes the temperature dependent X-ray studies of epitaxial NTE ScF 3 thin films grown epitaxially on a strongly positive thermal expansion (PTE) substrate. | Session 106: Semiconductor Films and Interfaces |
| 1498 | A revised three-dimensional electron gas model to describe surface plasmonic phenomena | Kong, Jiantao | In other words, a revised 3D electron gas model can predict and describe surface plasmonic phenomena by itself. | Session 106: Semiconductor Films and Interfaces |
| 1499 | Low energy excitons in GaN film under strong magnetic fields | wang, Yi; Yang, Liuyun; Wang, Xinqiang; Yang, Changli; Zhang, Chi | We propose that the patterns of the absorption can be attributed to the low energy excitons in GaN under strong magnetic fields. | Session 106: Semiconductor Films and Interfaces |
| 1500 | Enhanced deep water acoustic range estimation based on ocean General Circulation Models | Weichman, Peter | I will describe efforts to test the limits of currently available GCM data to accurately estimate absolute range based on data collected during the PhilSea10 experiment using 510 km source-receiver separation. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1501 | Physics-based Inverse Design of Elastic Rods with Deep Neural Network | Qin, Longhui; Huang, Weicheng; Khalid Jawed, Mohammad | We overcome this issue by decomposing a large rod into a series of smaller parts; the solution involving the smaller parts are stored in DNNs. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1502 | Synthesizing arbitrary lattice models using a single degenerate cavity | Zhou, Zhengwei; Wang, Su; Zhou, Xiang-Fa; Guo, Guang-Can; Pu, Han | We propose a general method to simulate arbitrary lattice models by manipulating optical synthetic dimension in a single degenerate main cavity. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1503 | The effect of mass fluctuations on Dirac materials sensors for dark matter | Olsthoorn, Bart; Balatsky, Alexander | We study the effect of disorder through a discrete and continuous random mass-term, which both lead to tails (e.g. Lifshitz tails) in the density of states. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1504 | Magnetic proximity and nonreciprocal current switching in a monolayer WTe2 helical edge | Zhao, Wenjin; Fei, Zaiyao; Song, Tiancheng; Choi, Han Kyou; Palomaki, Tauno; Sun, Bosong; Malinowski, Paul; McGuire, Michael; Chu, Jiun-Haw; Xu, Xiaodong; Cobden, David | We find that the edge conductance is sensitive to the magnetization state of the CrI 3, and the coupling can be understood in terms of an exchange field from the nearest and next-nearest CrI 3 layers that produces a gap in the helical edge state. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1505 | Far-field thermal radiation at the optical topological transition | Debnath, Sanjay; Narimanov, Evgenii | In this work, we show that the unique evolution of this transition leads to a characteristic signature in the far-zone thermal emission. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1506 | A bizarre state of confined He-3 | Dolmatov, Valeriy | Here, we focus on a He-3 atom whose 1s 2 shell is known to undergo a tiny hyperfine spin-splitting: 1s 2 →1s↑1s↓. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1507 | Benchmark calculations of the doublet S-states of the singly charged carbon ion | Bubin, Sergiy; Hornyak, Istvan; Adamowicz, Ludwik | We report acurate variational calculations of the five lowest doublet S-states of the C + ion. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1508 | Compact tunable plasma muon accelerator for ultrashort micron-scale muon pair beams | Sahai, Aakash; Shiltsev, Vladimir; Tajima, Toshiki | Experimentally accessible schemes of compact plasma muon acceleration are introduced and modeled using a novel technique of controlled post-processing of cascade showers. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1509 | Reinforcement Learning and the Cost of Observation | Coles, Rory; Bellinger, Colin; Tamblyn, Isaac | In this work, we show how an agent can build an internal hypothesis of its environment, using experience from past measurements, that it can then act on. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1510 | A modified reference approach implemented in Python (MRAIP) to obtain CO2 emissions in any region | Aboh, Hycienth; Akpojotor, Godfrey; Ofomola, Merrious | In the study here, we develop a modified reference approach implemented in Python (MRAIP) to obtain the CO 2 emissions in any location such as a country, region, state or town once its apparent consumptions can be determined. | Session 107: Sensing, Interactions, and Fundamental Limits |
| 1511 | Mesoscopic Conductance Fluctuations in Class D Superconducting Wires | Antonenko, Daniil; Ostrovsky, Pavel; Skvortsov, Mikhail | In order to calculate the variance of conductance var G in the diffusive regime we introduce n=2 sigma-model and apply the method of transfer-matrix Hamiltonian, studying Laplace-Beltrami operator on the rank two symmetric superspace. | Session 108: One Dimensional Topological Systems |
| 1512 | Majorana bound states from textured chiral magnets | Rex, Stefan; Gornyi, Igor; Mirlin, Alexander | We discuss a hybrid system consisting of a conventional superconductor exchange-coupled to a magnetic layer with Dzyaloshinskii-Moriya interaction (DMI). | Session 108: One Dimensional Topological Systems |
| 1513 | Topological Phases in a One-dimensional Majorana-Bose-Hubbard Model | Roy, Ananda; Hauschild, Johannes; Pollmann, Frank | In this work, we numerically investigate the properties of the topological phase in the presence of phase-fluctuations using the density matrix renormalization group (DMRG) technique. | Session 108: One Dimensional Topological Systems |
| 1514 | Boundary-induced dynamics and quantum memory effect of 1D and 2D topological systems | Chien, Chih-Chun; He, Yan | We consider the 1D Su-Schrieffer-Heeger (SSH) model and Kitaev model transforming from periodic to open boundary condition and the 2D Chern insulator (CI) and topological quadrupole insulator (TQI) transforming from a cylinder or Mobius strip to open boundary condition. | Session 108: One Dimensional Topological Systems |
| 1515 | Interaction Driven Floquet Engineering of Topological Superconductivity in Rashba Nanowires | Thakurathi, Manisha; Aseev, Pavel; Loss, Daniel; Klinovaja, Jelena | We analyze, analytically and numerically, a periodically driven Rashba nanowire proximity coupled to an s-wave superconductor [1] using bosonization and renormalization group analysis in the regime of strong electron-electron interactions. | Session 108: One Dimensional Topological Systems |
| 1516 | Almost strong 0, π edge modes in clean, interacting 1D Floquet systems | Yates, Daniel; Essler, Fabian; Mitra, Aditi | We introduce a model that features edge modes that persist over times scales well in excess of the time needed for the bulk of the system to heat to infinite temperatures. | Session 108: One Dimensional Topological Systems |
| 1517 | Rigorous results on topological superconductivity with particle number conservation | Lapa, Matthew; Levin, Michael | As a first step in this direction, we use rigorous methods to study a number-conserving toy model of a topological superconducting wire. | Session 108: One Dimensional Topological Systems |
| 1518 | Braiding Floquet Majorana Modes in One-Dimensional Topological Superconductors | Truong, Bill; Pereg-Barnea, Tami; Agarwal, Kartiek | In our work, we study a 1D p-wave superconductor modelled as a Kitaev chain with the driving achieved by periodically modulating the parameters of the system. | Session 108: One Dimensional Topological Systems |
| 1519 | Universal delocalization transition in 1D chiral Floquet topological insulators | Sathe, Pratik; Brown, Albert; Harper, Fenner; Roy, Rahul | We investigate the localization properties at this special point, for flat-band, two-step Floquet drives. | Session 108: One Dimensional Topological Systems |
| 1520 | Experimental study of 1D Su-Schrieffer-Heeger edge modes in a water-wave channel | Anglart, Adam; Obrepalski, Pawel; Kusumi, Kei; Maurel, Agnes; Petitjeans, Philippe; Pagneux, Vincent | The main objective of this work is to experimentally investigate the topologically protected edge-states and band gaps in a water waveguide with periodic geometry. | Session 108: One Dimensional Topological Systems |
| 1521 | Path integral for spin-1 chain in the entangled basis | Han, Jung Hoon | We develop path-integral formulation of spin-1 Haldane chain in the entangled, matrix product state (MPS) basis. | Session 108: One Dimensional Topological Systems |
| 1522 | Detecting one-dimensional interacting topological phases by edge-state pinning | Chang, Shun-Chiao; Hosur, Pavan | In this work, we propose and demonstrate an efficient method for detecting the topological edge states with DMRG. | Session 108: One Dimensional Topological Systems |
| 1523 | Generalized bulk-edge correspondence for non-hermitian topological phases | Imura, Ken-Ichiro; takane@hiroshima-u.ac.jp, Yositake | In a recent paper [1] we have established that the idea of bulk-edge correspondence in the hermitian limit can be generalized to non-hermitian topological systems. | Session 108: One Dimensional Topological Systems |
| 1524 | The Weyl-Kondo semimetal Ce3Bi4Pd3 and its field-tuned phase diagram | Buehler-Paschen, Silke | The Weyl-Kondo semimetal Ce3Bi4Pd3 and its field-tuned phase diagram | Session 109: Strongly Correlated Topological Metals |
| 1525 | Weyl-Kondo Semimetal in non-Symmorphic Systems | Si, Qimiao | In this talk, I will summarize the theoretical developments, with a focus on the effect of non-symmorphic space-group symmetry in conjunction with strong correlations [1,3], the transitions to nearby quantum phases, as well as the efficient control of the Weyl nodes including their annihilation by a magnetic field [4,5]. | Session 109: Strongly Correlated Topological Metals |
| 1526 | From Trivial Kondo Insulator Ce3Pt3Bi4 to Topological Nodal-line Semimetal Ce3Pd3Bi4 | Cao, Chao; Zhi, Guoxiang; Zhu, Jian-Xin | Using the density functional theory combined with dynamical mean-field theory, we have performed systematic study of the electronic structure and its band topology properties of Ce3Pt3Bi4 and Ce3Pd3Bi4. | Session 109: Strongly Correlated Topological Metals |
| 1527 | Evidence for Undoped Weyl Semimetal Charge Transport in a bad Weyl Semi-Metal: Y2Ir2O7 | Ramirez, Arthur | We discuss the various types of transport for both doped and undoped Weyl systems. | Session 109: Strongly Correlated Topological Metals |
| 1528 | STM studies of candidate topological Kondo insulator SmB6 | Wirth, Steffen; Jiao, Lin; Rössler, Sahana; Kasinathan, Deepa; Rosa, Priscila; Liu, Chao-Xing; Fisk, Zachary; Steglich, Frank | Using STM, we performed local measurements on well identified, atomically flat, unreconstructed surfaces [2]. | Session 109: Strongly Correlated Topological Metals |
| 1529 | Plutonium in high magnetic fields. | Wartenbe, Mark; Tobash, Paul; Harrison, Neil; Singleton, John; Winter, Laurel | We present the data in the context of gaining in site into the 5f electrons physics of the material and its ephemeral magnetic moment. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1530 | Ab initio study of the properties of liquid uranium for temperatures up to 2050 K | Gonzalez, Luis; Gonzalez del Rio, Beatriz; Gonzalez, David | In this contribution we analyze the properties of liquid U, studied through ab initio methods, for three temperatures in the temperature range between its melting point (1405 K) and 2050 K. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1531 | Theoretical investigations of the tritium diffusion pathways in γ-LiAlO2 pellets | Paudel, Hari; Jia, Ting; Duan, Yuhua | For TPBARs to enable effective tritium production in PWRs and to improve the performances of these components, we are investigating the 3H solubility and diffusion pathways in the bulk and surface of γ-LiAlO 2 with different concentrations of lithium defects. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1532 | Complex Phase Behavior of U3O8 | Miskowiec, Andrew; Niedziela, Jennifer; Spano, Tyler; Finkeldei, Sarah; Hunt, Rodney; Ambrogio, Michael | We present preliminary investigations into possible resolutions of this observation, including temperature dependent Raman and x-ray diffraction measurements. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1533 | Crystal-field states of UO2 probed by directional dependence of nonresonant inelastic x-ray scattering | Sundermann, Martin; Van der Laan, Gerrit; Severing, Andrea; Simonelli, Laura; Lander, Gerard; Haverkort, Maurits; Caciuffo, Roberto | Crystal-field states of UO2 probed by directional dependence of nonresonant inelastic x-ray scattering | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1534 | Excess Electrons on Reduced AnO2 (111) Surfaces (An = Th, U, Pu) and Their Impacts on Catalytic Water Splitting | Wang, Gaoxue; Batista, Enrique; Yang, Ping | In this talk, I will discuss our first-principle study of the electronic structure of excess electrons from oxygen vacancies on AnO 2 (111) surfaces. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1535 | First Principles Investigation of the electronic and magnetic structure of Pu6Fe | Hernandez, Sarah; Wills, John | This work will present density functional theory calculations using the all-electron full-potential linearized augmented-plane-wave plus local orbital basis method as implemented in the WIEN2k code. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1536 | Magnetic torque of USb single crystals | Ding, Xiaxin; Shrestha, Keshav; Zimmermann, Ingrid; McDonald, Ross; Weickert, Franziska; Harrison, Neil; Jaime, Marcelo; Salamon, Myron; Griveau, J-C.; Smith, James; Gofryk, Krzysztof | During the talk we will present results of our recent magnetic torque measurements performed on high-quality single crystals of USb at temperatures below and above T_N. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1537 | 5f-electron localization in metallic PuPdSn | Gofryk, Krzysztof; Griveau, J-C.; Colineau, Eric; Caciuffo, Roberto; Smith, James | Here we present our detailed studies on the structural, magnetic, thermal, and transport properties of PuPdSn. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1538 | Electronic structure of GdNi and HoNi | Chuang, Chien Wen; Lin, Hong-Ji; de Groot, F. M. F.; Chang, F. H.; Chen, Chien-Te; Chin, Y. Y.; Liao, Y. F.; Tsuei, Ku-Ding; Chelvane, J. Arout; Nirmala, R.; Chainani, Ashish | We investigate the electronic structure of GdNi and HoNi using Hard hard X-ray photoemission spectroscopy (HAXPES). | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1539 | The structural and mechanically properties of alloyed Zr-50Nb and Zr-22Nb systems with Sn and Co at varied temperature | Malebati, Magoja; Ngoepe, Phuti; Chauke, Hasani | In this work, density functional theory was used to investigate the structural and mechanical properties of Zr-50Nb-X and Zr-22Nb-X with alloying elements Sn and Co. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1540 | Magnetic frustration and magnetic correlations in YbMn2Sb2 single crystals | Ribeiro, Raquel; Munevar, Julian; Arantes, Fabiana; Mendonça-Ferreira, Leticie; Avila, Marcos; Morenzoni, Elvezio | Magnetic frustration and magnetic correlations in YbMn2Sb2 single crystals | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1541 | Study of the Band Structure and the Origin of the XMR Effect in La1-xCexBi | Hao, Yujie; Ma, Xiao-Ming; Li, Bin; Guo, Yanping; Yue, Feng; Lu, Rui’e; Liu, Chang | In this work, La 1-xCe xBi single crystals with x ranging from 0 to 0.2 is studied. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1542 | The interplay of electronic, magnetic and structural properties of GdB6 from first principles | Xu, Shaowen | We perform a systematical density-functional theory (DFT) study of GdB 6 by using the generalized-gradient approximation and considering the electron interaction parameter U. | Session 110: Metals: Actinide, Nuclear Related and Rare Earth Physics |
| 1543 | Microstructure structure of air-grown UNxOy on nitrogen-rich uranium nitride | Wang, Xiaofang; Long, Zhong; Zeng, Rongguang; Hu, Yin; Liu, Kezhao | In this work, oxide formation on surface of nitrogen-rich uranium nitride was investigated using X-ray photoelectron spectroscopy (XPS), auger electron spectroscopy (AES), aberration-corrected transmission electron microscopy (TEM), and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) coupled with electron energy-loss spectroscopy (EELS). | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1544 | Segregation Effects and Charge Transport in Yttria-Stabilized Zirconia Thin Films on Langasite Substrates | Mahyob, Firas; Bernhardt, George; Lad, Robert | In this work, RF-magnetron sputter deposition was used to synthesize YSZ (8%Y 2O 3-92%ZrO 2) films with thicknesses from 15nm to 200nm on piezoelectric langasite (La 3Ga 5SiO 14) substrates at growth temperatures from 25-600 oC. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1545 | Surface reconstruction of TiO2 nanocrystals | Yoon, Aram; Zhang, Xiao; Schleife, Andre; Zuo, Jian-Min | Here, we report on reconstructed surfaces on rutile nanocrystals studied by environmental transmission electron microscopy [2]. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1546 | Epitaxial Growth of Sr3Al2O6 by Pulsed Laser Deposition as a Water-Soluble Sacrificial Layer for GaAs Deposition | Khan, Imran; McMahon, Bill; Norman, Andrew; Zakutayev, Andriy | We investigated the epitaxial growth of high structural quality SAO on single crystal SrTiO 3 (STO) substrates by pulsed laser deposition, and the feasibility of subsequently growing GaAs epitaxially on top of it. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1547 | Surface and Interface Energetics of Pyrite-type Materials | Minnich, Joseph; O’Hara, Andrew; Pantelides, Sokrates | In this work, we perform calculations using density functional theory (DFT) to gain insight into the surface and interface energetics of these pyrite materials. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1548 | Atomic scale dynamic process of oxide growth during copper oxidation | Li, Meng; Curnan, Matthew; Saidi, Wissam; Yang, Judith | In this work, we use correlated in situ Environmental Transmission Electron Microscope, DFT simulation, quantitative data extraction and statistical analysis to investigate the dynamic atomic process of initial oxide growth. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1549 | Structure and electro-optical properties of SrxBa1-xNb2O6 films grown by molecular beam epitaxy. | Beskin, Ilya; Geler Kremer, Jacqueline; Posadas, Agham; Demkov, Alexander | Structure and electro-optical properties of SrxBa1-xNb2O6 films grown by molecular beam epitaxy. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1550 | Probing TiO2 as a potential filter material for adsorption and destruction of chemical warfare agents | Tsyshevskiy, Roman; McEntee, Monica; Durke, Erin; Li, Tianyu; Leonard, Matthew; Rodriguez, Efrain; Karwacki, Christopher; Kukla, Maija | Here, we present a comprehensive study of sarin interactions with TiO 2 performed by means of quantum chemical calculations and a combination of IR and XPS measurements. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1551 | Density Functional Theory Calculations of Al doped Hafnia for Different Crystal Symmetry Configurations | Steier, Joshua; Sahiner, Mehmet; Vander Valk, Rory; Savastano, Jared; Kelty, Stephen | In this work, we theoretically investigated the stability of the possible structures that could be present in Al doped HfO 2 using quantum mechanical methods. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1552 | Investigation of the thickness-dependent optical properties of ZnO films on Si and SiO2 substrates from the Mid-infrared to the Vacuum-ultraviolet using UV and FTIR spectroscopic ellipsometry | Samarasingha Arachchige, Nuwanjula; Zollner, Stefan; Pal, Dipayan; Mathur, Aakash; Singh, Ajaib; Singh, Rinki; Chattopadhyay, Sudeshna | Instead, we find it more convenient to describe ε as a product of Drude, TO/LO phonon, and electronic interband transition factors. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1553 | Surface structure and electronic properties of a, b, and e polymorphs of Ga2O3 | Cao, Tengfei; Mishra, Rohan | Surface structure and electronic properties of a, b, and e polymorphs of Ga2O3 | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1554 | Atomistic determination of the surface structure of Cu2O (111) and Cu2O (110): experiment and theory | Guest, Jeffrey; Zhang, Rui; Li, Liang; Frazer, Laszlo; Chang, Kelvin; Poeppelmeier, Kenneth; Chan, Maria | In this work, high-resolution ultrahigh vacuum (UHV) scanning tunneling microscopy (STM) and density functional theory (DFT) calculations combined with STM simulations have been used to determine the structure of the defected (111) and (110) surfaces of a Cu 2O bulk crystal. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1555 | Structural and Electrical Properties of Pulsed Laser Deposited Yttrium Doped Zirconium Oxide Thin Film Stabilization | Melfi, Matthew; Tuttle, Sarah; Dalli, Samantha; Murphy, Kellen; Sahiner, Mehmet | The goal of our research is to determine if the YSZ thin film synthesis lead to minimum ohmic resistance of the films at optimum film thickness. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1556 | Time-resolved Nanosecond-Laser Recrystallization of Amorphous FeDy-O Thin Films in the (S)TEM | Koirala, Krishna; Liu, Chenze; Allen, Tatiana; Kalyanaraman, Ramki; Duscher, Gerd | To investigate the structure and chemical composition of this material, we employed laser processing inside the (S)TEM with simultaneous High-Resolution Transmission Electron Microscopy (HRTEM) imaging, Electron Diffraction, and Electron Energy Loss Spectroscopy (EELS) measurements. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1557 | Ionic liquid gate induced modifications of oxides surface | Zhuang, Yuechen; Cui, Bin; Yang, Hao; Gao, Fang; Parkin, Stuart | In this presentation, we show using in-situ atomic force microscopy studies, with photothermal excitation that allows for high quality measurements in the viscous environment of the ionic liquid, that the edges of atomically smooth terraces at the surface of SrCoO 2.5 films are significantly modified by IL gating but that the terraces themselves remain smooth. | Session 111: Oxide Films, Surfaces, and Interfaces |
| 1558 | Superconductivity from quantum fluctuations of itinerant quantum critical points | Hao, Yunchao; Qi, Yang; Sun, Kai | In this study, we investigate these systems utilizing analytic approach. | Session 112: Quantum Criticality and Phase Transitions |
| 1559 | Critical properties of antiferromagnetic and valence-bond-solid transitions in lattice quantum electrodynamics | Zerf, Nikolai; Boyack, Rufus; Marquard, Peter; Gracey, John; Maciejko, Joseph | We derive Landau-Ginzburg-Wilson theories of the QED-Gross-Neveu(-Yukawa) type for these transitions, find stable renormalization-group fixed points corresponding to the observed quantum critical points, and compute their critical exponents using epsilon and large- N expansions. | Session 112: Quantum Criticality and Phase Transitions |
| 1560 | Structure of Quantum Entanglement at a Finite Temperature Critical Point | Grover, Tarun; Lu, Tsung-Cheng | We propose a scheme to characterize long-range quantum entanglement close to a finite temperature critical point using tripartite entanglement negativity. | Session 112: Quantum Criticality and Phase Transitions |
| 1561 | Universal Prethermal Dynamics in Gross-Neveu-Yukawa Criticality | Jian, Shaokai; Yin, Shuai; Swingle, Brian | We study the prethermal dynamics of the Gross-Neveu-Yukawa quantum field theory, suddenly quenched in the vicinity of a critical point. | Session 112: Quantum Criticality and Phase Transitions |
| 1562 | Critical behavior near the many-body localization transition in driven open systems | Lenarcic, Zala; Alberton, Ori; Rosch, Achim; Altman, Ehud | We propose a new order parameter, based on the fluctuations in local temperatures. | Session 112: Quantum Criticality and Phase Transitions |
| 1563 | B1g Raman response near an Ising-nematic quantum critical point: properties of a quasielastic peak | Wang, Xiaoyu; Berg, Erez | Here we present a theoretical study of the B 1g channel Raman response in the vicinity of an Ising-nematic quantum critical point (QCP) in two space dimensions. | Session 112: Quantum Criticality and Phase Transitions |
| 1564 | Nematic fluctuations in the Hubbard models | Liu, Tianyi; Huang, Edwin; Moritz, Brian; Devereaux, Thomas | Here we report calculations of the nematic susceptibilities from determinant quantum Monte Carlo (DQMC) simulations of the Hubbard models, for various model parameters, doping levels, and temperatures. | Session 112: Quantum Criticality and Phase Transitions |
| 1565 | Direct Measurement of the Soft Mode Driving a Quantum Phase Transition | Libersky, Matthew; McKenzie, Ryan; Silevitch, Daniel; Stamp, Philip; Rosenbaum, Thomas | Addressing this issue is necessary for connecting theory and modeling to observations and device design. | Session 112: Quantum Criticality and Phase Transitions |
| 1566 | Duality Web on a 3D Euclidean Lattice and Manifestation of Hidden Symmetries | Son, Jun Ho; Chen, Jing-Yuan; Raghu, Srinivas | We generalize our previous lattice construction of the abelian bosonization duality in 2+1 dimensions to the entire web of dualities as well as the N f=2 self-duality, via the lattice implementation of a set of modular transformations in the theory space. | Session 112: Quantum Criticality and Phase Transitions |
| 1567 | London penetration depth in disordered unconventional superconductors with competing interactions | Khodas, Maxim; Dzero, Maxim; Levchenko, Alex | In my talk I will present a theory of disordered unconventional superconductor with competing magnetic order. | Session 112: Quantum Criticality and Phase Transitions |
| 1568 | Magnetic phase transitions in quantum spin-orbital liquids | Feng, Shi; Patel, Niravkumar; Kim, Panjin; Han, Jung Hoon; Trivedi, Nandini | We investigate the spin and orbital correlations of a superexchange model with spin S=1 and orbital L=1 relevant for 5d 4 transition metal Mott insulators, using exact diagonalization and density matrix renormalization group (DMRG). | Session 112: Quantum Criticality and Phase Transitions |
| 1569 | Universal quantum glass transition on the Bethe lattice | Lovas, Izabella; Moca, Catalin Pascu; Zarand, Gergely | We consider the limit of infinite coordination number, where we combine dynamical mean field theory with a Hartree-Fock approximation to investigate the glass transition and the properties of the glassy phase in the presence of full replica symmetry breaking. | Session 112: Quantum Criticality and Phase Transitions |
| 1570 | Atomic-scale fragmentation and collapse of antiferromagnetic order in a doped Mott insulator | Zhao, He; Manna, Sujit; Porter, Zach; Chen, Xiang; Uzdejczyk, Andrew; Moodera, Jagadeesh; Wang, Ziqiang; Wilson, Stephen; Zeljkovic, Ilija | We use spin-polarized scanning tunneling microscopy (SP-STM) to visualize the periodic spin-resolved modulations originating from the antiferromagnetic order in a Jeff = ½ strongly spin-orbit coupled Mott insulator Sr 2IrO 4. | Session 112: Quantum Criticality and Phase Transitions |
| 1571 | Phase Structure of Isotropic and Anisotropic Ising Models at Complex Couplings | Basu, Sankhya; Oganesyan, Vadim; Hooley, Chris | In this work, we study the phase structures and phase transitions that arise in both the Isotropic and the Anisotropic Ising Models by analytically continuing away from real coupling – both temperature and field. | Session 112: Quantum Criticality and Phase Transitions |
| 1572 | Characterization for higher-order symmetry-protected topological phases by quantized Berry phases | Araki, Hiromu; Hatsugai, Yasuhiro; Mizoguchi, Tomonari | We propose the Z Q Berry phase as a topological invariant for higher-order symmetry-protected topological (HOSPT) phases for two- and three-dimensional systems. | Session 113: Higher-Order Topological Phase |
| 1573 | Evolution of planar topological phases in topocircuits | Dong, Junkai; Juricic, Vladimir; Roy, Bitan | We here present a systematic evolution of two-dimensional topological insulators, starting from the analog of quantum anomalous and spin Hall insulators, supporting one-dimensional edge states in electric circuits, also known as topocircuits. | Session 113: Higher-Order Topological Phase |
| 1574 | Magnetotransport in a second-order topological insulator | Levitan, Benjamin; Pereg-Barnea, Tami | Based on numerical calculations, we predict a clear magnetotransport signature reflecting the interplay between Landau level physics and the hinge modes of the SOTI. | Session 113: Higher-Order Topological Phase |
| 1575 | Many-Body Invariants for Topological Insulators: Multipole, Chern, and Hinge States | Kang, Byungmin; Cho, Gil Young | We propose many-body invariants for the broad classes of topological insulators including Chern insulators, chiral hinge insulators, and multipole insulators. | Session 113: Higher-Order Topological Phase |
| 1576 | Gapless hinge states from adiabatic pumping of axion coupling | Olsen, Thomas; Rauch, Tomas; Vanderbilt, David; Souza, Ivo | We demonstrate that gapless chiral hinge states naturally emerge in insulating crystals undergoing a slow cyclic evolution that changes the Chern-Simons axion coupling θ by 2π. | Session 113: Higher-Order Topological Phase |
| 1577 | Transport signature of helical hinge states of quasi-one-dimensional topological insulators | Zhou, Yanfeng; Zhang, Fan | We examine the electronic behavior of their helical hinge states and predict unique signatures in transport experiment. | Session 113: Higher-Order Topological Phase |
| 1578 | Flux Response of Higher-Order Topological Insulators | Schindler, Frank; Tsirkin, Stepan; Neupert, Titus; Bernevig, Andrei; Wieder, Benjamin | In this work, we use threaded π-flux to probe HOTIs with and without time-reversal symmetry. | Session 113: Higher-Order Topological Phase |
| 1579 | Disordered intrinsic higher-order topological insulators | Claes, Jahan; Hughes, Taylor | Here, we study disordered models of higher-order topological insulators whose topological modes are protected by internal symmetries and a Wannier gap. | Session 113: Higher-Order Topological Phase |
| 1580 | Higher Order Topological Insulators in Amorphous Solids | Agarwala, Adhip; Juricic, Vladimir; Roy, Bitan | We identify the possibility of realizing higher order topological (HOT) phases in noncrystalline or amorphous materials. | Session 113: Higher-Order Topological Phase |
| 1581 | Pfaffian formalism for higher-order topological insulators | Li, Heqiu; Sun, Kai | We generalize the Pfaffian formalism, which has been playing an important role in the study of time-reversal invariant topological insulators (TIs), to 3D chiral higher-order topological insulators (HOTIs) protected by the product of four-fold rotational symmetry C 4 and the time-reversal symmetry T. | Session 113: Higher-Order Topological Phase |
| 1582 | Identifying Higher Order Topology and Fractional Corner Charge Using Entanglement Spectra | Zhu, Penghao; Loehr, Kieran; Hughes, Taylor | We study the entanglement spectrum (ES) of two-dimensional Cn-symmetric second-order topological insulators (TIs). | Session 113: Higher-Order Topological Phase |
| 1583 | Valence bond glass state in the 4d1 Mo5+ fcc antiferromagnet Ba2LuMoO6 | Mustonen, Otto; Mutch, Heather; Baker, Peter; Walker, Helen; Pughe, Charlotte; Coomer, Fiona; Liu, Cheng; Dutton, Sian; Cussen, Edmund | Here we show that it is a valence bond glass; similar to the well known isostructural Ba 2YMoO 6 compound. | Session 114: Spin-orbit coupled systems |
| 1584 | Tuning electron correlation strength by charge doping of 5d1 double perovskites | Garcia, Erick; Forino, Paola; Cong, Rong; Snider, Charles; Tran, Phuong; Woodward, Patrick; Mitrovic, Vesna; Sanna, Samuele | Here, we present a systematic study of the electron doped powder Mott insulator Ba 2Na 1-xCa xOsO 6 through the Na/Ca partial substitution using 23Na nuclear magnetic resonance at various doping concentrations. | Session 114: Spin-orbit coupled systems |
| 1585 | NMR study on single crystal Ba2LiOsO6 | Snider, Charles; Cong, Rong; Garcia, Erick; Sanna, Samuele; Ramakrishna, Sanath; Reyes, Arneil; Yan, Jiaqiang; Mitrovic, Vesna | NMR study on single crystal Ba2LiOsO6 | Session 114: Spin-orbit coupled systems |
| 1586 | On the charge transfer energy in iridates: a hard x-ray photoelectron spectroscopy study | Takegami, Daisuke; Kasinathan, Deepa; Wolff, Klaus; Altendorf, Simone; Chang, Chun-Fu; Hoefer, Katharina; Meléndez-Sans, Anna; Utsumi, Yuki; Meneghin, Federico; Ha, Thai Duy; Yen, Chien-Han; Chen, Kai; Kuo, Chang-Yang; Liao, Y. F.; Tsuei, Ku-Ding; Morrow, Ryan; Wurmehl, Sabine; Prasad, B.E.; Jansen, Martin; Komarek, Alexander; Hansmann, Philipp; Tjeng, Liu Hao | We have investigated the electronic structure of iridates in the double perovskite crystal structure containing either Ir 4+ or Ir 5+ using hard x-ray photoelectron spectroscopy (HAXPES). | Session 114: Spin-orbit coupled systems |
| 1587 | Monte Carlo simulation of a strong SOC model for d1 double perovskite | Cong, Rong; Marston, John; Mitrovic, Vesna | To investigate the possible spin and orbital order patterns consistent with the NMR observations, we performed Monte Carlo simulations of a microscopic model for d 1 double perovskites magnetic Mott insulators with multipolar spin interactions [2] . | Session 114: Spin-orbit coupled systems |
| 1588 | Ground state in the novel dimer iridate Ba13Ir6O30 with Ir6+(5d3) Ions | Zhao, Hengdi; Ye, Feng; Zheng, Hao; Hu, Bing; Ni, Yifei; Zhang, Yu; Kimchi, Itamar; Cao, Gang | We have synthesized and studied a new iridate, Ba 13Ir 6O 30, with unusual Ir oxidation states: 2/3 Ir 6+( 5d3) ions and 1/3 Ir 5+( 5d4) ions. | Session 114: Spin-orbit coupled systems |
| 1589 | Spin-orbital-entangled quantum magnet on a honeycomb lattice | Takayama, Tomohiro | We argue that the disordered OH/OD bonds likely play a role to stabilize the quantum liquid state. | Session 114: Spin-orbit coupled systems |
| 1590 | Jahn-Teller effect and spin-orbit coupling in t2g systems | Streltsov, Sergey; Khomskii, Daniel | In this talk we will discuss a very general problem of interplay between the Jahn-Teller (JT) effect and the spin-orbit coupling (SOC). | Session 114: Spin-orbit coupled systems |
| 1591 | Thermodynamics of Spin-Orbital Coupled Magnets: The Case of Dimers and Timers | Winter, Stephen; Li, Ying; Valenti, Roser | In this contribution, we focus on the theoretical description of recently reported spin-liquid candidate materials based on mixed valence M 2O 9 dimers [1] and M 3O 12 trimers [2,3]. | Session 114: Spin-orbit coupled systems |
| 1592 | Effect of disorder in Kitaev materials | Perkins, Natalia; Knolle, Johannes; Moessner, Roderich; Kao, Wen-Han | Here we discuss how include vacancies in this consideration and consider combined effect of bond disorder and vacances at finite temperature properties of the Kitaev quantum spin liquid. | Session 114: Spin-orbit coupled systems |
| 1593 | Resonant elastic x-ray scattering on the molecular orbital in Li2RuO3 | Yun, Seokhwan; Kim, Beom Hyun; Lee, Ki; Porter, Dan; Matteo, Sergio; Kang, Soonmin; Jeong, Jaehong; bombardi, alessandro; Park, Je-Guen | We observed a distinct phase difference in the polarization dependence between Ru 2 p-4 d ( t 2g) and 2 p-4 d ( e g) process. | Session 114: Spin-orbit coupled systems |
| 1594 | Andreev Reflection in Pseudospin-1 System | Feng, Xiaolong; Liu, Ying; Ang, Yee Sin; Yang, Shengyuan | Compared with previous models in which the N sides are of two-dimensional electron gas and graphene, we find a perfect Andreev reflect with a larger incident angle allowed at pseudospin-1 metal/s-wave superconductor interface. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1595 | Tunneling spectroscopy as a probe of fractionalized excitations in RuCl3/graphene stacks | Principi, Alessandro; Carrega, Matteo | In this work, we model the electron tunnelling through thin alpha-RuCl3 samples encapsulated with graphene and study signatures of fractionalised excitations in spin-unpolarized tunnelling currents. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1596 | On-Chip Strain Enhanced Superconductivity in 1T’-MoTe2 | Pena, Tara; Hou, Wenhui; Azizimanesh, Ahmad; Watson, Carla; Sewaket, Arfan; Wu, Stephen | In this work, we explore the use of on-chip thin film stress capping layers to achieve the same effect from in-plane strain on exfoliated 1T’-MoTe 2. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1597 | Unconventional Superconductivity in Semiconductor Artificial Graphene | Li, Tommy; Scammell, Harley; Ingham, Julian | We propose a new model, within current experimental reach, to investigate the microscopics of strong–binding superconductivity. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1598 | Structural, Topological, and Superconducting Properties of 2D Tellurium Allotropes from ab initio Predictions | Niu, Chunyao; Zhao, Chunxiang; Cai, Xiaolin; Jia, Yu; Zhang, Zhenyu | We show that four (the B-α, B-β, B-γ, and B-η phases) exhibit topological insulators, and three (B-β, B-ε and T-κ phases) are intrinsic superconductors with Tc ~8 K. Interestingly, B-β phase possesses both topological and superconducting properties, which is the 2D monolayer material that have such intrinsic properties and may provide an appealing platform for exploring topological superconductivity in 2D systems. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1599 | Proximity induced spin-orbit splitting in graphene nanoribbons on transition metal dichalcogenides | Rossi, Enrico; Gani, Satrio; Walter, Eric | We study the effect of transition metal dichalcogenides (TMD) on the electronic structure of graphene nanoribbons (GNRs) from first-principles. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1600 | Electron-electron interactions, valleys, and band nesting in gated MoS2 quantum dots. | Szulakowska, Ludmila; Bieniek, Maciej; Hawrylak, Pawel | We report on the effect of valley, spin and band nesting on the many-electron properties of gated MoS 2 quantum dots. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1601 | Ultra-thin van der Waals crystals as semiconductor quantum wells | Zultak, Johanna; Magorrian, Samuel; Fal’ko, Vladimir; Gorbatchev, Roman | Using novel tunnelling and light emitting devices, we reveal the full subbands structure by studying resonance features in the tunnelling current, photoabsorption and light emission. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1602 | Observation of tunable plasmons in large area type-II Weyl semimetal films | Wang, Chong; Huang, Shenyang; Xing, Qiaoxia; Zhang, Guowei; wang, fanjie; sun, yangye; Xie, yuangang; Lei, Yuchen; Sun, Zhengzong; Yan, hugen | Observation of tunable plasmons in large area type-II Weyl semimetal films | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1603 | The Origin of Hydrophilicity on 1T′-MoS2 | Nichols, Laura; Shen, Xiao | We attribute this metallic phase to 1T′-MoS 2 and investigate the origin of the hydrophilic behavior. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1604 | Metal-based nanomats as catalysts for self-oscillating Belousov-Zhabotinsky reactions | SHARMA, VISHESH; JASUJA, KABEER; Dayal, Pratyush | In particular, we show that when bare Ceria and Ru nanosheets are used as catalysts for BZ reactions, the oscillations change depending upon the presence of oxy-functional groups. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1605 | Stable out-of-plane piezoelectric group-IV monochalcogenide monolayers with a buckled honeycomb structure | Poudel, Shiva; Barraza-Lopez, Salvador | We used DFT to study 12 group-IV monochalcogenide monolayers MX (M=Si, Ge, Sn, Pb and X =S, Se, Te) with a 2-fold degenerate honeycomb structure. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1606 | A spectrum of exfoliable 1D van der Waals materials and their electronic properties | Zhu, Yanbing; Rehn, Daniel; Antoniuk, Evan; Cheon, Gowoon; Moura Freitas, Rodrigo; Krishnapriyan, Aditi; Reed, Evan | Data-mining efforts suggest there are hundreds of bulk materials with the potential to be exfoliated into one-dimensional (1D) structures. | Session 115: Superconducting, Electronic and Chemical Properties of 2D Materials |
| 1607 | How Alfven’s theorem explains the Meissner effect | Hirsch, Jorge | I explain the nature of this fluid and show that it carries neither charge nor mass, but carries effective mass. | Session 116: Superconductivity: General Theory |
| 1608 | Superconductivity induced by fluctuations of momentum-based multipoles | Sumita, Shuntaro; Yanase, Youichi | In this study, we investigate superconductivity induced by fluctuations odd-parity magnetic multipoles, aiming at good understanding of multipole-fluctuation-mediated superconductivity. | Session 116: Superconductivity: General Theory |
| 1609 | Multiple solutions of pairing gap equation in quantum critical metals. | Wu, Yi-Ming; Abanov, Artem; Wang, Yuxuan; Chubukov, Andrey | We find in this study that at the critical point the situation is different: the linearized gap equation has a cascade of solutions at T=T c (n) . | Session 116: Superconductivity: General Theory |
| 1610 | The dielectric function method for superconducting materials | Elst, Dietrich; Klimin, Sergei; Tempere, Jacques | The dielectric function method (DFM), which uses a non-adiabatic approach to calculate the critical temperatures for superconductivity, has been quite successful in describing superconductors at low carrier densities. | Session 116: Superconductivity: General Theory |
| 1611 | Odd–Parity Spin–Triplet Superconductivity in Antiferromagnetic Metals Lacking Effective Time-Reversal Symmetries | Lee, Seung Hun; Yang, Bohm-Jung | We propose a route to achieve odd-parity spin-triplet superconductivity in metallic collinear antiferromagnets with inversion symmetry. | Session 116: Superconductivity: General Theory |
| 1612 | Suppression of superfluidity by dissipation – An application to failed superconductor | Misaki, Kou; Nagaosa, Naoto | In this talk, we show theoretically that the bosons in the dilute limit subject to dissipation can lose the superfluidity and remain metallic, utilizing the Feynman’s picture of superfluidity in the first quantized formulation. | Session 116: Superconductivity: General Theory |
| 1613 | SP*OT* symmetry and unconventional pairing in non-Hermitian superconductors | Bandyopadhyay, Sumanta; Balatsky, Alexander | In this work, we investigate the role of damping as a mean to induce dynamics in the superconducting system. | Session 116: Superconductivity: General Theory |
| 1614 | Spontaneous Time-Reversal Symmetry Breaking in unconventional Superconductors | Zeng, Meng; Hu, Lun-Hui; Wu, Congjun | In this work, we show that time-reversal symmetry breaking transition can occur due to superconducting phase fluctuations before the onset of superconductivity. | Session 116: Superconductivity: General Theory |
| 1615 | Electromagnetic response of superconductors in the presence of multiple collective modes | Boyack, Rufus; Lopes, Pedro | To clarify this issue, we revisit how collective modes appear in the Meissner effect. | Session 116: Superconductivity: General Theory |
| 1616 | Calculating the Superconducting Superheating Field within Eilenberger Theory | Pack, Alden; Transtrum, Mark | Here, we discuss the calculation of Hsh in Eilenberger theory in the clean limit. | Session 116: Superconductivity: General Theory |
| 1617 | Enhanced Superconductivity in Quasi-periodic Crystals | Fan, Zhijie; Chern, Gia-Wei; Lin, Shizeng | Through standard Bogoliubov-de Gennes calculations and analytical analysis utilizing Anderson’s idea of pairing the time-reversed exact eigenstates, we find that superconductivity is enhanced when the electronic wave functions are critical. | Session 116: Superconductivity: General Theory |
| 1618 | Dynamic Pair-Breaking Current in Superconductors | Sheikhzada, Ahmad; Gurevich, Alexander | We calculated a dynamic pair-breaking current density $J_d$ and a critical condensate velocity $v_d$ in a thin film superconducting strip or a filament carrying a large-amplitude ac current $J(t)=J_0\sin\omega t$. | Session 116: Superconductivity: General Theory |
| 1619 | Collective modes in Bogoliubov Fermi surfaces without gapless Goldstone modes | Sau, Jay; Swingle, Brian | We study collective modes of a finite temperature Bogoliubov Fermi surface with no symmetries. | Session 116: Superconductivity: General Theory |
| 1620 | Floquet theory of periodically-driven superconductors | Liarte, Danilo; Maniscalco, James; Kelley, Michelle; Sitaraman, Nathan; Arias, Tomas; Liepe, Matthias; Sethna, James | We use Floquet theory to describe dynamics and losses of superconductors under extremely high fields and frequencies. | Session 116: Superconductivity: General Theory |
| 1621 | Effect of Defects in Superconducting Phase of Twisted Bilayer Graphene | Yang, Hui; Gao, Zhi-Qiang; Wang, Fa | In this work we study the effect of impurity in the superconducting phases of the twisted bilayer graphene (TBG) by analysing bound states induced by the impurity. | Session 116: Superconductivity: General Theory |
| 1622 | Signatures of a pair density wave in striped cuprates at high magnetic fields (H) | Baity, Paul; Shi, Zhenzhong; Terzic, Jasminka; Popovic, Dragana; Sasagawa, Takao | We detected several phenomena predicted to arise from the existence of a PDW, including an enhancement of interlayer superconducting (SC) phase coherence with increasing Hpara. | Session 117: Superconductivity and Competing phases |
| 1623 | Re-investigating the pseudogap phase of cuprates. | Abrami, Paolo; Badoux, Sven; Carrington, Antony | Re-investigating the pseudogap phase of cuprates. | Session 117: Superconductivity and Competing phases |
| 1624 | Diffuse Scattering Studies of Local Correlations in ErBa2Cu3O6+x | Poudel, Bisham; Dabrowski, Bogdan; Phelan, Daniel; Krogstad, Matthew; Osborn, Raymond; Rosenkranz, Stephan; Chmaissem, Omar | In this talk, I will discuss recent single crystal diffuse scattering work to elucidate the nature of local short-range order and its correlation with CDW and the pseudogap states. | Session 117: Superconductivity and Competing phases |
| 1625 | Spatially Inhomogeneous Competition between Superconductivity and the Charge Density Wave in YBa2Cu3O6.67 | Choi, Jaewon; Ivashko, Oleh; Blackburn, Elizabeth; Liang, Ruixing; Bonn, Douglas; Hardy, Walter; Holmes, Alexander; Christensen, Niels; Huecker, Markus; Gerber, Simon; Gutowski, Olof; Ruett, Uta; von Zimmermann, Martin; Forgan, Edward; Hayden, Stephen; Chang, Johan | We found that F-CDW order exists from low-field range B ~ 5 T, and regions of the sample with F-CDW order suppress superconductivity stronger than those with AF-CDW order. | Session 117: Superconductivity and Competing phases |
| 1626 | No pseudogap magnetism detected in optimally to heavily overdoped Bi2+xSr2-xCaCu2O8+d single crystals by μSR | Gheidi, Shayan; Côté, Andre; Dunsiger, Sarah; Akintola, Kolawole; Fang, Alex; Sundar, Shyam; Gu, Genda; Sonier, Jeff | No pseudogap magnetism detected in optimally to heavily overdoped Bi2+xSr2-xCaCu2O8+d single crystals by μSR | Session 117: Superconductivity and Competing phases |
| 1627 | Nematic Cooper-pair mass renormalization in copper oxide superconductors | Wardh, Jonatan; Granath, Mats; Wu, Jie; Bozovic, Ivan | We show that the observation of rotational symmetry breaking from transverse resistivity measurements in the normal state of LaSrCuO by Wu et al 1. | Session 117: Superconductivity and Competing phases |
| 1628 | Magnetic-field-tuned superconducting quantum phase transition in underdoped Bi2Sr2-xLaxCuO6+δ | Terzic, Jasminka; Pokharel, Bal; Baity, Paul; Stanley, Lily; Popovic, Dragana; ono, shimpei | We perform similar studies in underdoped Bi 2Sr 2-xLa xCuO 6+ δ (La-Bi2201), which exhibits short-range charge order, by measuring linear transport, voltage-current characteristics and Hall effect in H up to 45 T and temperatures ( T) down to 0.017 K. | Session 117: Superconductivity and Competing phases |
| 1629 | Incommensurability of the dynamic spin modulations in La2-xSrxCuO4 (x=0.12) | He, Wei; Wen, Jiajia; Suzuki, K. M.; Asano, Shun; Tian, Wei; Fujita, Masaki; Lee, Young | In this talk, I will present our recent high-resolution inelastic neutron scattering experiment which characterized the Y-shift in the spin fluctuation regime in LSCO (x=0.12). | Session 117: Superconductivity and Competing phases |
| 1630 | Emergence of superconductivity in two transition metal chalcogenides | Biniskos, Nikolaos; Hameed, Sajna; Pelc, Damjan; Li, Yuan; Zhu, Xiangde; Petrovic, Cedomir; Greven, Martin | We use AC nonlinear magnetic response, a probe that was recently shown to be highly sensitive to SC fluctuations [3], to correlate the diamagnetic response above the superconducting transition temperature with the substitutional disorder. | Session 117: Superconductivity and Competing phases |
| 1631 | Direct observation of an incommensurate charge density wave in the superconductor Ta4Pd3Te16 | Shi, Zhenzhong; Kuhn, Stephen; Flicker, Felix; Steinhardt, William; Dissanayake, Sachith; Helm, Toni; Lee, Jooseop; Ruff, Jacob; Fabbris, Gilberto; Graf, David; Strempfer, Joerg; Haskel, Daniel; Haravifard, Sara | In this talk we present our experimental and theoretical results. | Session 117: Superconductivity and Competing phases |
| 1632 | Nematic order and Charge order in Ba0.6Sr0.4Ni2As2 | Saraf, Prathum; Eckberg, Chris; Lee, Sangjun; Collini, John; Sun, Stella; Campbell, Daniel; Lynn, Jeffrey; Abbamonte, Peter; Paglione, Johnpierre | We report on X-ray and Neutron measurements on Ba 0 .6Sr 0.40Ni 2As 2 that show the existence of three charge density waves. | Session 117: Superconductivity and Competing phases |
| 1633 | Charge Order in Tunable Electronic Nematic Superconductor Ba1-xSrxNi2As2 | Collini, John; Lee, Sangjun; Sun, Stella; Eckberg, Chris; Lynn, Jeffrey; Abbamonte, Peter; Paglione, Johnpierre | We report single crystal X-ray diffraction observations that show a unidirectional charge order with wavevector (0.27,0,0) in BaNi2As2 decays and vanishes by x=0.65. | Session 117: Superconductivity and Competing phases |
| 1634 | Interstitial Oxygen Dopant Dynamics in La2CuO4+y Probed by Coherent X-rays | Jiang, Mingde; He, Wei; Wen, Jiajia; Fluerasu, Andrei; Zhang, Yugang; Wiegart, Lutz; Lee, Young | We present x-ray photon correlation spectroscopy (XPCS) data, measuring the dynamic timescale of the corresponding oxygen ordering diffraction peaks in order to infer the interstitial oxygen dopant mobility and its temperature dependence. | Session 117: Superconductivity and Competing phases |
| 1635 | An evidence of the three-dimensional superconductivity evolution through apical oxygen in YBCO | Huang, Hai; Lee, Sang Jun; Fujita, Masaki; Nishizaki, Terukazu; Kao, Chi-Chang; Lee, Jun-Sik | Here, we investigated the oxygen order at the Cu-O chain layer in YBa 2Cu 3O 6.73 (YBCO), which is connected with CuO 2 plane through the apical oxygen. | Session 117: Superconductivity and Competing phases |
| 1636 | Fast moving superconducting vortices and determination of the critical current in high pulsed magnetic fields | Maiorov, Boris; Leroux, Maxime; Nekrashevich, Ivan; Miura, Masashi; Balakirev, Fedor; Civale, Leonardo | Here, we present a fast I-V DC technique that enables determination of the superconducting critical current in pulsed magnetic fields, beyond the reach of DC magnets. | Session 117: Superconductivity and Competing phases |
| 1637 | Pressure Induced Quantum Spin Liquids in Extended Kitaev Model | Wang, Jiucai; Liu, Zheng-Xin | We show that these gapless spin liquids can be distinguished experimentally. | Session 118: Kitaev Model Theory and Experiment |
| 1638 | Transport and chaos in lattice Sachdev-Ye-Kitaev models | Guo, Haoyu; Gu, Yingfei; Sachdev, Subir | We find two distinct regimes of linear-in-temperature (T) resistivity, and describe the crossover between them. | Session 118: Kitaev Model Theory and Experiment |
| 1639 | Low-rank Sachdev-Ye-Kitaev Models | Kim, Jaewon; Cao, Xiangyu; Altman, Ehud | Motivated by recent works on atom-cavity realizations of fast scramblers, and on Cooper pairing in non-Fermi liquids, we study a family of solvable variants of the (q=4) Sachdev-Ye-Kitaev model in which the rank and eigenvalue distribution of the coupling matrix J are tuneable. | Session 118: Kitaev Model Theory and Experiment |
| 1640 | Soft modes in the complex Sachdev-Ye-Kitaev model | Gu, Yingfei; Kitaev, Alexei; Sachdev, Subir; Tarnopolsky, Grigory | We discuss soft modes in the Sachdev-Ye-Kitaev model for complex fermions with large N flavors and a global U(1) charge. | Session 118: Kitaev Model Theory and Experiment |
| 1641 | Dynamical and thermal magnetic properties of the Kitaev spin liquid candidate α-RuCl3 | Laurell, Pontus; Okamoto, Satoshi | In this work we investigate dynamical and thermal magnetic properties of proposed effective Hamiltonians. | Session 118: Kitaev Model Theory and Experiment |
| 1642 | Thermal and magnetoelastic properties of a-RuCl3 in the field-induced low temperature states | Schoenemann, Rico; Imajo, Shusaku; Weickert, Franziska; Takano, Yasumasa; Nagler, Stephen; Mandrus, David; Jaime, Marcelo | In order to identify the nature of the phase transitions below T N and to map the phase diagram as a function of magnetic field, we conducted measurements of the magnetocaloric effect in pulse magnetic fields as well as thermal expansion and magnetostriction measurements in static fields up to 15 T. | Session 118: Kitaev Model Theory and Experiment |
| 1643 | Multipartite Entanglement in the Kitaev Honeycomb Model | Lambert, James; Sorensen, Erik | We study the Kitaev honeycomb model, a prototype of QSL physics in two dimensions, using the quantum Fisher information (QFI), which is both experimentally accessible and well defined at finite temperature. | Session 118: Kitaev Model Theory and Experiment |
| 1644 | Spin-one Kitaev-Heisenberg model on a two-dimensional honeycomb lattice | Dong, Xiaoyu; Sheng, Donna | We study the Kitaev-Heisenberg model with a spin-1 local degree of freedom on a two-dimensional honeycomb lattice numerically by density matrix renormalization group method. | Session 118: Kitaev Model Theory and Experiment |
| 1645 | Microscopic route to magnetic anisotropy in higher-spin honeycomb lattice: application to CrI3 | Stavropoulos, Panagiotis Peter; Kee, Hae-Young | We present the microscopic origin of frustrated S=3/2 model terms in d 3 systems. | Session 118: Kitaev Model Theory and Experiment |
| 1646 | Two-Magnon Bound States in the Kitaev Model in a [111]-Field | Pradhan, Subhasree; Patel, Niravkumar; Trivedi, Nandini | Here, we analyze the low field and high field phases and phase transitions in terms of single- and two-magnon excitations using exact diagonalization (ED) and density matrix renormalization group (DMRG) methods. | Session 118: Kitaev Model Theory and Experiment |
| 1647 | Phase diagram of the spin-1/2 Kitaev-Gamma chain and emergent “partial" SU(2) symmetry | Yang, Wang; Nocera, Alberto; Tummuru, Tarun; Kee, Hae-Young; Affleck, Ian | In the gapless phase, the low energy theory is described by an emergent SU(2)$_1$ Wess-Zumino-Witten (WZW) model though the exact symmetry group is discrete. | Session 118: Kitaev Model Theory and Experiment |
| 1648 | Ab initio quantum chemical study of magnetic interactions in the honeycomb Kitaev-Heisenberg systems Cu2IrO3 and H3LiIr2O6 | Eldeeb, Mohamed; Yadav, Ravi; Bogdanov, Nikolay; Ray, Rajyavardhan; Nishimoto, Satoshi; Van den Brink, Jeroen; Hozoi, Liviu | The magnetic interactions in honeycomb iridium oxide compounds are studied using quantum chemical wavefunction-based methods. | Session 118: Kitaev Model Theory and Experiment |
| 1649 | Kitaev material candidates beyond the Iridates | Ramanathan, Arun; Daum, Marcus; Mourigal, Martin; La Pierre, Henry | In this talk, I will present our work on a new lanthanide-based, Kitaev material candidate with a potential Jeff=1/2 ground state. | Session 118: Kitaev Model Theory and Experiment |
| 1650 | Ferrimagnetism and anisotropic phase tunability by magnetic fields in Na2Co2TeO6 | Yao, Weiliang; Li, Yuan | With small training fields, we find a canonical ferrimagnetic behavior below 27 K, which reveals additional Neel-type order of canted moments. | Session 118: Kitaev Model Theory and Experiment |
| 1651 | magnetic structures and excitations in the series of A2PrO3 (A: alkali metals) | tunggiya, mergen; Plumb, Kemp | We study magnetic structures and excitations in the series of A2PrO3 (A: alkali metals) by performing neutron scattering experiments. | Session 118: Kitaev Model Theory and Experiment |
| 1652 | THz Emission Spectroscopy of Surface Photogalvanic Effects in a Chiral Weyl Semimetal | Torchinsky, Darius; Lu, Baozhu; Rees, Dylan; Manna, Kaustuv; Borrmann, Horst; Felser, Claudia; Orenstein, Joseph | Here, we present photogalvanic effect data collected via terahertz emission spectroscopy on a chiral Weyl semimetal as a function of polarization and incident wavelength and discuss how our data reveal signatures of the topologically relevant surface states. | Session 119: Linear and nonlinear optics of topological materials |
| 1653 | Non-linear Optical Response of an Exactly Soluble Model of Topological Insulators | Riseborough, Peter | We examine an exactly soluble model of time-reversal and inversion symmetric Topological Insulators and calculate the linear optical conductivity. | Session 119: Linear and nonlinear optics of topological materials |
| 1654 | Circular photogalvanic effect in interacting Weyl semimetals | Avdoshkin, Aleksandr; Kozii, Vladyslav; Moore, Joel | We find that the inclusion of interactions generically breaks the quantization yet the corrections are non-divergent. | Session 119: Linear and nonlinear optics of topological materials |
| 1655 | Electronic band structure and free carrier properties of strained tin-germanium alloys on InSb from FTIR ellipsometry | Carrasco, Rigo; Zollner, Stefan; Kiefer, Arnold; Claflin, Bruce; Chastang, Stephanie; Duan, Jinsong; Grzybowski, Gordon | From Fourier-transform infrared ellipsometry, we provide spectroscopic evidence about the valence band structure of α-tin. | Session 119: Linear and nonlinear optics of topological materials |
| 1656 | SHG spectroscopy of the surface states of a chiral Weyl semimetal | Rees, Dylan; Lu, Baozhu; Manna, Kaustuv; Felser, Claudia; Orenstein, Joseph; Torchinsky, Darius | We present an SHG study of a chiral Weyl semimetal as a function of incident photon energy to study SHG response deriving solely from the surface and discuss what our analysis of the nonlinear tensor elements reveals on the topological nature of the material. | Session 119: Linear and nonlinear optics of topological materials |
| 1657 | Kerr and Faraday rotations in a Weyl semimetal in a strong magnetic field | Parent, Jean-Michel; Cote, Rene; Garate, Ion | In this talk, we show how the presence of the CLL changes the behavior of the Kerr and Faraday rotations of an electromagnetic wave incident on a WSM in a strong magnetic field with respect to a non-topological metal. | Session 119: Linear and nonlinear optics of topological materials |
| 1658 | Connecting second-order optical response with the band structure geometry of Weyl semimetals | Holder, Tobias; Kaplan, Daniel; Yan, Binghai | Here, we revisit the general formalism for the second-order optical response with finite lifetimes, focusing on the consequences of the time-reversal-symmetry breaking. | Session 119: Linear and nonlinear optics of topological materials |
| 1659 | Probing quantum criticality using nonlinear Hall effect in a metallic Dirac system | Juricic, Vladimir; Rostami, Habib | In this talk, we will show how the nonlinear Hall effect can be used as a direct probe of this transition when inversion symmetry is broken [1]. | Session 119: Linear and nonlinear optics of topological materials |
| 1660 | Observation of bulk-to-surface optical transition in topological insulator Bi2Se3 | Jeon, Jiwon; yu, kwangnam; kim, Jiho; Moon, Jisoo; Oh, Seongshik; Choi, Eunjip | We performed broadband optical transmission measurements of Bi 2Se 3 and In-doped (Bi 1-xIn x) 2Se 3 thin films, where in the latter the spin-orbit coupling (SOC) strength can be tuned by introducing In. | Session 119: Linear and nonlinear optics of topological materials |
| 1661 | Chiral Magnetic Photocurrent in Dirac and Weyl Materials | Kaushik, Sahal; Kharzeev, Dmitri; Philip, Evan | We show that if the photoresponse of the material is dominated by chiral quasiparticles, the total chiral charge induced in the material by CPL can be evaluated in a model-independent way through the chiral anomaly. | Session 119: Linear and nonlinear optics of topological materials |
| 1662 | The Low Energy Second Harmonic Generation Spectrum of the Chiral Multifold Fermion System RhSi | Lu, Baozhu; Rees, Dylan; Manna, Kaustuv; Borrmann, Horst; Grushin, Adolfo; Felser, Claudia; Orenstein, Joseph; Torchinsky, Darius | Here, we present a spectroscopic study of one of these processes, the bulk second harmonic generation response as a function of incidence photon energy and measure the single SHG susceptibility tensor element χ xyz over the 275 – 900 meV range. | Session 119: Linear and nonlinear optics of topological materials |
| 1663 | Nonlinear optical response of graphene family materials near topological phase transitions | Malla, Rajesh; De Melo Kort-Kamp, Wilton | In this work we study the interaction of graphene family materials with ultrashort (~10’s of femtosecond) linearly polarized optical pulses both in time and frequency domain. | Session 119: Linear and nonlinear optics of topological materials |
| 1664 | Femtosecond to Nanosecond Lifetimes in Optically-Excited Nodal-Line Semimetals | Kirby, Robert; Scholes, Greg; Schoop, Leslie | In this talk, we will discuss our ultrafast optical measurements of the response of ZrSi X ( X = S, Se, Te) to narrowband near-infrared pulses. | Session 119: Linear and nonlinear optics of topological materials |
| 1665 | Colliding Electrons and Holes in Semiconductors to Reconstruct Berry Curvature | Costello, Joseph; O’Hara, Seamus; Valovcin, Darren; Wu, Qile; Kira, Mackillo; Pfeiffer, Loren; Sherwin, Mark | In this talk I will present HSG experiments done in GaAs and demonstrate how to extract parameters relating to hole dynamics. | Session 119: Linear and nonlinear optics of topological materials |
| 1666 | Spectroscopic features of the parent phase of magic-angle twisted bilayer graphene | Oh, Myungchul; Wong, Dillon; Nuckolls, Kevin; Lian, Biao; Xie, Yonglong; Watanabe, Kenji; Taniguchi, Takashi; Bernevig, Andrei; Yazdani, Ali | In this talk, we report on new, higher resolution STM/STS studies of this phase. | Session 120: STM on twisted 2D heterostructures |
| 1667 | High-Resolution Spectroscopic Studies of Magic-Angle Twisted Bilayer Graphene at Millikelvin Temperatures | Nuckolls, Kevin; Oh, Myungchul; Wong, Dillon; Lian, Biao; Watanabe, Kenji; Taniguchi, Takashi; Bernevig, Andrei; Yazdani, Ali | We extend these STM measurements to millikelvin temperatures, where we explore how the “parent phase” develops into correlated insulating and superconducting phases. | Session 120: STM on twisted 2D heterostructures |
| 1668 | High-resolution Landau level spectroscopy of magic-angle twisted bilayer graphene | Wong, Dillon; Nuckolls, Kevin; Oh, Myungchul; Lian, Biao; Watanabe, Kenji; Taniguchi, Takashi; Bernevig, Andrei; Yazdani, Ali | We will describe these measurements, their connection to the magnetotransport studies, and their interpretations in terms of microscopic properties of MATBG as a function of electron density. | Session 120: STM on twisted 2D heterostructures |
| 1669 | Atomic-scale structure and electronic properties of twisted double bilayer graphene | Rubio Verdú, Carmen; Turkel, Simon; Song, Larry; Kennes, Dante; Xian, Lede; Ochoa, Hector; Rubio, Angel; Pasupathy, Abhay | We show real-space imaging of tDBG moiré superstructure by means of Scanning Tunneling Microscopy/Spectroscopy (STM/STS). | Session 120: STM on twisted 2D heterostructures |
| 1670 | Identifying the effect of hBN alignment on twisted bilayer graphene using scanning tunneling microscopy | Chiu, Cheng-Li; Liu, Xiaomeng; Xie, Yonglong; Jaeck, Berthold; Watanabe, Kenji; Taniguchi, Takashi; Yazdani, Ali | Comparing spectra from different samples, we explore the effect of hBN alignment on the electronic properties of twisted bilayer graphene. | Session 120: STM on twisted 2D heterostructures |
| 1671 | Imaging moiré superlattices in twisted bilayers of 2D materials | McGilly, Leo; Kerelsky, Alexander; Finney, Nate; Shapovalov, Kostantin; Ghiotto, Augusto; Shih, En-Min; Zeng, Yihang; Moore, Samuel; Wu, Wenjing; Bai, Yusong; Zhou, Lin; Watanabe, Kenji; Taniguchi, Takashi; Hone, James; Zhu, Xiaoyang; Basov, Dmitri; Dean, Cory; Dreyer, Cyrus; Pasupathy, Abhay | In this work we outline a method to visualize the real-space moiré superlattices in a variety of twisted vdW heterostructures utilizing piezoresponse force microscopy which locally measures an electromechanical sample surface deformation. | Session 120: STM on twisted 2D heterostructures |
| 1672 | Flat bands in small angle twisted bilayer WSe2 | Zhang, Zhiming; Wang, Yimeng; Watanabe, Kenji; Taniguchi, Takashi; Ueno, Keiji; Tutuc, Emanuel; LeRoy, Brian | Using variable height spectroscopy, we observe sharp peaks in the density of states near the valence band edge related to the flat bands. | Session 120: STM on twisted 2D heterostructures |
| 1673 | Effect of Spin-orbit Coupling in Twisted Bilayer and Double Bilayer Transition Metal Dichalcogenides | Kundu, Sudipta; Naik, Mit; Jain, Manish | Using a multiscale approach, based on classical force-fields for structural relaxation and density functional theory calculations for electronic structure, we investigate the influence of spin-orbit coupling on the flat bands in twisted TMD systems. | Session 120: STM on twisted 2D heterostructures |
| 1674 | Tunable Moiré Superlattice of Artificially Twisted Monolayers | Chiang, Yi-Cheng; Chen, Po Yen; Zhang, Xin-Quan; Lai, Ying-Yu; Chen, Chun-An; Lin, Erh-chen; Guan, Syu You; Gwo, Shangjr; Chang, Chia-Seng; Chen, Lih Juann; Lee, Yi-Hsien | Tunable Moiré Superlattice of Artificially Twisted Monolayers | Session 120: STM on twisted 2D heterostructures |
| 1675 | Unsupervised learning of nematic order from scanning tunneling spectroscopy on twisted bilayer graphene | Lederer, Samuel; Choi, Youngjoon; Ismailov, Pavel; Wilson, Andrew; Nadj-Perge, Stevan; Kim, Eun-Ah | We therefore develop an automated method to extract salient physical quantities from STM data on moiré materials, and apply it to measurements on TBG that visually suggest the breaking of rotational symmetry (i.e. nematic order). | Session 120: STM on twisted 2D heterostructures |
| 1676 | Moiré superlattice of a charge transfer Kondo monolayer and its interplay with superconductivity | Lu, Shuangzan; Nam, Hyoungdo; Xiao, Penghao; Guo, Yanping; Liu, Mengke; Bai, Yusong; Chen, Zhengbo; Zhou, Haitao; Henkelman, Graeme; Fiete, Gregory; Gao, H.-J.; MacDonald, Allan; Zhang, Chendong; Shih, Chih-Kang | Here, we report on the observation of a moiré superlattice formed between an organic monolayer and a s-wave superconductor. | Session 120: STM on twisted 2D heterostructures |
| 1677 | Scanning tunneling microscopy and spectroscopy of graphene on in-plane anisotropic rhenium disulfide | Plumadore, Ryan; Boddison-Chouinard, Justin; Scarfe, Samantha; Luican-Mayer, Adina | In this talk, we focus on a system that has graphene placed on top of the in-plane anisotropic semiconductor ReS 2. | Session 120: STM on twisted 2D heterostructures |
| 1678 | Transition Metal Adatoms on Graphyne: Electronic Structure and Thermoelectric Properties | latge, andrea; Venezuela, Pedro; Rodrigues, Debora | Here we investigated structural and electronic properties of Mn and Fe adatoms adsorbed on Graphyne (Gy) using density functional theory. | Session 120: STM on twisted 2D heterostructures |
| 1679 | Electronic structure of carbon nanotubes on graphene substrates | Flebus, Benedetta; Macdonald, Allan | Recent research has shown that the electronic properties of graphene multilayers are exquisitely sensitive to the relative orientation between sheets, and in the bilayer case exhibit strong electronic correlations when close to a magic twist angle. | Session 120: STM on twisted 2D heterostructures |
| 1680 | Q-Valley Quasiparticle Interference in Few-Layer Transition Metal Dichalcogenides | Cheung, Patrick; Zhou, Yan-Feng; Zhang, Fan | We study the quasiparticle interference (QPI) due to Q-valley electrons scattering off localized impurities, which modifies the local density of states. | Session 120: STM on twisted 2D heterostructures |
| 1681 | Kondo holes break topological protection of heavy Dirac fermions in SmB6 | Pirie, Harris; Liu, Yu; Mascot, Eric; Chen, Pengcheng; Saha, Shanta; Wang, Xiangfeng; Paglione, Johnpierre; Hamidian, Mohammad; Hirjibehedin, Cyrus; Morr, Dirk; Hoffman, Jennifer | Here, we introduce electrochemical potential imaging spectroscopy to directly visualize the impact of Kondo holes from the liberation of screening electrons around them. | Session 121: SmB6 and Kondo Insulators |
| 1682 | Surface state properties of SmB6 under pressure | Seo, Soonbeom; Luo, Yongkang; Thomas, Sean; Fisk, Zachary; Thompson, Joe; Rosa, Priscila; Ronning, Filip | Here we report thermopower measurements under pressure that illustrate that the Fermi energy of the surface state is unchanged as a function of pressure in the insulating regime. | Session 121: SmB6 and Kondo Insulators |
| 1683 | A Resonant Inelastic X-ray Scattering investigation of the 4f states in SmB6 | Amorese, Andrea; Stockert, Oliver; Kummer, Kurt; Brookes, Nicholas; Kim, Dae-Jong; Fisk, Zachary; Haverkort, Maurits; Thalmeier, Peter; Tjeng, Liu Hao; Severing, Andrea | We find that the quartet G 8 ground state [4] and the doublet G 7 excited state are split by D CF=20±10meV. | Session 121: SmB6 and Kondo Insulators |
| 1684 | A Parameter-free Study of the Magnetic and Electronic Structure of the Topological Heavy-fermion Compound SmB6 | Zhang, Ruiqi; Singh, Bahadur; Lane, Christopher; Kidd, Jamin; Zhang, Yubo; Barbiellini, Bernardo; Markiewicz, Robert; Bansil, Arun; Sun, Jianwei | We revisit the highly debated mixed-valence compound SmB6, which has been widely studied in both theory and experiment. | Session 121: SmB6 and Kondo Insulators |
| 1685 | Conductive dislocation lines in SmB6 observed through microwave impedance microscopy | Xu, Kejun; Xia, Jing; Zaanen, Jan; Shen, Zhixun | Transport studies suggest surface-dominated transport at low temperatures [1]. | Session 121: SmB6 and Kondo Insulators |
| 1686 | Electrical Transport Properties of SmB6 Nanowires | Ghosh, Sujoy; Thomas, Sean; Kim, Yeonhoo; Ronning, Filip; Bauer, Eric; Yoo, Jinkyoung; Rosa, Priscila | Electrical Transport Properties of SmB6 Nanowires | Session 121: SmB6 and Kondo Insulators |
| 1687 | Synthesizing SmB6 single crystals by various techniques | Saha, Shanta; William, Lucas; Fuhrman, Wesley; Eo, Yun Suk; Baumbach, Ryan; Paglione, Johnpierre | Therefore, growing single crystals using alternative methods is considered important for elucidating the intrinsic electronic properties of SmB6. | Session 121: SmB6 and Kondo Insulators |
| 1688 | Revisiting Hall coefficient measurements in samarium hexaboride | Rakoski, Alexa; Eo, Yun Suk; Mihaliov, Dmitri; Kurdak, Cagliyan; Rosa, Priscila; Fisk, Zachary; Kang, Boyoun; Song, Myung-suk; Cho, Beongki; Ciomaga Hatnean, Monica; Balakrishnan, Geetha | We present a study of transport, especially Hall coefficient, from three perspectives. | Session 121: SmB6 and Kondo Insulators |
| 1689 | Properties of the donor impurity band in mixed valence insulators | Skinner, Brian | Here I consider whether a similar bound state and a similar impurity band can exist in mixed valence insulators, such as SmB 6 and YbB 12. | Session 121: SmB6 and Kondo Insulators |
| 1690 | Topological surface state of Kondo insulator YbB12 | Sato, Yuki; Kasahara, Shigeru; Kasahara, Yuichi; Xiang, Ziji; Tinsman, Colin; Chen, Lu; Li, Lu; Shibauchi, Takasada; Iga, Fumitoshi; Singleton, John; Nair, Nityan; Maksimovic, Nikola; Analytis, James; Matsuda, Yuji | Here we fabricated micro-devices of YbB 12 using focused ion beam technique and measured transport properties in high fields. | Session 121: SmB6 and Kondo Insulators |
| 1691 | Field-induced “exotic metal” phase in Kondo insulator YbB12 | Xiang, Ziji; Kasahara, Yuichi; Chen, Lu; Asaba, Tomoya; Sato, Yuki; Tinsman, Colin; Iga, Fumitoshi; Singleton, John; Matsuda, Yuji; Li, Lu | We systematically studied the high field metallic phase in YbB 12 in pulsed magnetic fields. | Session 121: SmB6 and Kondo Insulators |
| 1692 | Magnetic Field Induced Fermi Liquid In a Candidate Topological Kondo Insulator | Kushwaha, Satya; Chan, Mun; Park, Joonbum; Thomas, Sean; Bauer, Eric; Thompson, Joe; Ronning, Filip; Rosa, Priscila; Harrison, Neil | We show that Ce 3Bi 4Pd3 is a narrow gap Kondo insulator. | Session 121: SmB6 and Kondo Insulators |
| 1693 | First-principles study of band topology for f-electron materials: Ce3(Pt/Pd)3Bi4 | Kidd, Jamin; Zhang, Ruiqi; Sun, Jianwei | 2,3 Here, we consider the local magnetic moment of Ce atoms and calculate the electronic structures for typical magnetic configurations. | Session 121: SmB6 and Kondo Insulators |
| 1694 | Optical Properties of Kondo Insulators | Wugalter, Ari; Komijani, Yashar; Coleman, Piers | This talk will discuss the optical properties of Kondo insulators, including the dielectric constant and magnetic permeability. | Session 121: SmB6 and Kondo Insulators |
| 1695 | Interplay between magnetism and topology in Kondo Insulators | Riegler, David; Klett, Michael; Ok, Seulgi; Neupert, Titus; Woelfle, Peter; Thomale, Ronny | Here, we investigate the periodic Anderson model with the addition of spin orbit coupling via a fully spin-rotation invariant slave-boson treatment. | Session 121: SmB6 and Kondo Insulators |
| 1696 | Predicting γ′-Phase Stability in Co-Based Superalloys | Oliver, Hayden; Nyshadham, Chandramouli; Bekker, Brayden; Hart, Gus | We use the Moment Tensor Potentials (MTP) active-learning framework to predict the total energy, forces, and stresses for nearly 300,000 derivative superstructures in the Co-Al-W system. | Session 122: Metals: Structural and Shape Memory |
| 1697 | Elastic properties of the Ni-containing metallic glasses. | Svitelski, Oleksiy; Duggins, Danielle; Lee, David; Suslov, Alexey | Several different acoustic techniques can be used to determine the elastic constants of a material. | Session 122: Metals: Structural and Shape Memory |
| 1698 | Undercooling of gold nanodroplets levitated in a quadrupole ion trap in high vacuum | Coppock, Joyce; Waxter, Quinn; Hannan, José; Klueter, Samuel; Reynolds, Hope; Schare, Gregory; Kane, Bruce | To establish such a measurement technique using a well-characterized material, we levitate a charged 200 nm gold nanoparticle in an AC quadrupole electric field trap in a vacuum chamber and use a 532 nm laser to illuminate and heat it. | Session 122: Metals: Structural and Shape Memory |
| 1699 | Thermodynamic theory of crystal plasticity – formulation and application to fcc copper | Lieou, Charles; Bronkhorst, Curt | We present a thermodynamic description of crystal plasticity. | Session 122: Metals: Structural and Shape Memory |
| 1700 | Ab initio studies of TiPd-M (M= Os, Ru, Co) high temperature shape memory alloys | Diale, Ramogohlo; Modiba, Rosinah; Ngoepe, Phuti; Chauke, Hasani | In order to improve its properties, the effects of partial substitution of Pd with either Os, Ru or Co were investigated using density functional theory. | Session 122: Metals: Structural and Shape Memory |
| 1701 | First-Principles Study on the Role of Doped In in Fe–Pd–In Systems | Tatetsu, Yasutomi; Matsumoto, Kenshi; Sato, Ryota; Teranishi, Toshiharu | From our analysis, we find that the distance between Fe, Pd, and In is the key factor in stabilizing the new system. | Session 122: Metals: Structural and Shape Memory |
| 1702 | Molecular Dynamics (MD) Potential Development for Carbides | McGilvry-James, Tyler; Rabbani, Muztoba; Baishnab, Nirmal; Adhikari, Puja; San, Saro; Duff, Andrew; Ching, Wai-Yim; Sakidja, Ridwan | We utilized the reference-free (RF) MEAMfit code to generate many-body potentials of Embedded Atom Method (EAM) and Modified Embedded Atom Method (MEAM) for a variety of MC (M = Transition Metals, C = Carbon) systems with an emphasis on the M23C6 and MC carbide phases. | Session 122: Metals: Structural and Shape Memory |
| 1703 | Developing the Modified Embedded Interatomic Potential for Atomistic Simulations in Ni-Ti-Hf System | Jaishi, Meghnath; Tucker, Garritt; Stebner, Aaron | Herein, we discuss the development of an optimized interatomic potential for NiTiHf system within the framework of modified embedded atom method (MEAM). | Session 122: Metals: Structural and Shape Memory |
| 1704 | Accelerating the computational design of multi-principle element alloys | Johnson, Duane; Singh, Rahul; Singh, Prashant; Sharma, Aayush; Balasubramanian, Ganesh | We present a metaheuristic hybrid Cuckoo-Search (CS) algorithm that overcomes NP-hard global optimization and produces ultrafast solutions for large-dimensional combinatorial problems, using Levy flights (global) and Monte Carlo (local) searches, which avoids local-minima traps that stagnate solutions. | Session 122: Metals: Structural and Shape Memory |
| 1705 | Ab initio typical medium theory of substitutional disorder | Oestlin, Andreas; Zhang, Yi; Terletska, Hanna; Popescu, Voicu; Byczuk, Krzysztof; Vitos, Levente; Jarrell, Mark; Vollhardt, Dieter; Beiuseanu, Florian; Chioncel, Liviu | By merging single-site typical medium theory with density functional theory we introduce a self-consistent framework for electronic structure calculations of materials with substitutional disorder which takes into account Anderson localization. | Session 122: Metals: Structural and Shape Memory |
| 1706 | Prediction of Stability, Short-range Order, and Phase Selection in Multi-Principal-Element-Alloys | Singh, Prashant; Smirnov, Andrey V.; Ray, Pratik K; Kramer, Matthew J; Picak, Sezer; Chumlyakov, Yuriy I.; Arroyave, Raymundo; Pradeep, K.G.; Karaman, Ibrahim; Johnson, Duane | We present the capabilities of KKR-CPA-based stability and short-range order (SRO) prediction in multi-component solid-solution alloys for general lattices. | Session 122: Metals: Structural and Shape Memory |
| 1707 | Synthesis of nanocrystalline Mg-based alloy powders by mechanical alloying and their microstructural characterization | Kursun, Celal; Thoma, Dan J.; Perepezko, John | Nanocrystalline Mg 65Ni 25Y 5M 5 (M= Si, B, Ag) alloys have been produced by mechanical alloying from mixtures of pure crystalline Mg, Ni, Y and M powders using a Spex Industries Mill Model 8000 in order to characterize the influence of Si, B and Ag on the microstructure of Mg-Ni-Y alloy system. | Session 122: Metals: Structural and Shape Memory |
| 1708 | Ab initio investigation of Pb-based solder replacements | Woodcox, Michael; Young, Joshua; Smeu, Manuel | In this work, we have used density functional theory (DFT) and Ab Initio Molecular Dynamics (AIMD) to model materials at temperatures below and above their melting points. | Session 122: Metals: Structural and Shape Memory |
| 1709 | The Temperature Evolution of Dislocation Dynamics in Aluminum | Dresselhaus-Cooper, Leora; Cook, Phil; Yildirim, Can; Simons, Hugh; Detlefs, Carsten; Poulsen, Henning Friis; Eggert, Jon | I extend this novel technique to time-resolved studies that measure real-time movies to visualize how dislocations evolve at thermal equilibrium. | Session 122: Metals: Structural and Shape Memory |
| 1710 | Confined Vortex Matter with Anisotropic Interaction | Yan, Lihao; Janko, Boldizsar; Ma, Xiaoyu; Li, Wenzhao | In this project, we study confined superconducting vortex matter, when Abrikosov vortices are confined into a mesoscopic container. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1711 | Solid and liquid vortex phases in superconducting Nb/V hybrids | Vicent, Jose; Rollano, Victor; Gomez, Alicia; Munoz-Noval, Alvaro; del Valle, Javier; Menghini, Mariela; de Ory, Marina; Prieto, Jose; Navarro, Elena; Gonzalez, Elvira | We have studied the vortex dynamics in a periodic potential created by local enhancement of superconductivity. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1712 | Nonlinear Dynamics and Dissipation of a Curvilinear Vortex Driven by a Strong Surface Current | Walive Pathiranage, Manula Randhika Pathirana; Gurevich, Alexander | We report extensive numerical simulations of large-amplitude oscillations of a trapped vortex line subject to a strong ac magnetic field H(t) = H 0sin(ωt) parallel to the surface. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1713 | Melting of the 2D vortex lattice in thin a-MoGe films | Pokharel, Bal; Terzic, Jasminka; Popovic, Dragana; Dutta, Surajit; Jesudasan, John; Raychaudhuri, Pratap; MACCARI, Illaria; Benfatto, Lara | To fully characterize the melting transition, we performed systematic transport measurements on weakly disordered, 22 nm-thick a-MoGe films down to 0.020 K and in magnetic fields up to 18 T. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1714 | Strong irradiation-induced vortex pinning in (Cu,C)Ba2Ca3Cu4O11+d | Kwok, Wai-Kwong; Welp, Ulrich; Koshelev, Alexei; Kayani, Asghar; Niraula, Prashanta; Zhang, Yue; He, Chengping; Wen, Hai-Hu | We report on the strong enhancement of vortex pinning in the 115K-superconductor (Cu,C)Ba 2Ca 3Cu 4O 11+ d following irradiation with 6 MeV protons. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1715 | Lifting Degeneracy in the Vortex Lattice of MgB2 | Leishman, Allan; Eskildsen, Morten; Zhigadlo, Nikolai; Bleuel, Markus | In this talk, we will discuss the effect of this broken symmetry on both the VL phase diagram and the kinetic behavior of the structural phase transitions. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1716 | Superconducting vortex dynamics and critical current in mixed pinning landscapes | Glatz, Andreas; Willa, Roland; Sadovskyy, Ivan; Koshelev, Alexei | We provide clear evidence that antagonistic spherical and columnar defects can work hand in hand to provide an optimal pinning landscape for tilted magnetic fields. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1717 | Peak effects in NbSe2 with artificial pinning centers | Tamegai, Tsuyoshi; Li, Wenjie; Pyon, Sunseng; Okayasu, Satoru; Ichinose, Ataru | In the present study, we compare the effect of PDs and CDs on the J c – H behavior of NbSe 2. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1718 | Large and uniform critical currents in finite magnetic fields | Sadovskyy, Ivan; Glatz, Andreas; Koshelev, Alexei; Welp, Ulrich; Kwok, Wai-Kwong | To cover the broadest class of pinning landscapes we employ a genetic algorithm varying the size, position, and orientation of each defect individually. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1719 | New paradigm for a disordered superconductor in orbital magnetic field | Ghosal, Amit; Datta, Anushree; Banerjee, Anurag; Trivedi, Nandini | Here we show that acting simultaneously on a two-dimensional superconductor, disorder and magnetic field lead to an intriguing evolution of the superconducting state. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1720 | Microwave flux-flow Hall effect of superconductors: (1) Method | Ogawa, Ryo; Nabeshima, Fuyuki; Maeda, Atsutaka | Thus, we developed a new method for microwave Hall effect measurement using a cross shaped bimodal cavity. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1721 | Microwave flux-flow Hall effect of superconductors: (2) Experiments in Bi2Sr2CaCu2Oy | Ogawa, Ryo; Nabeshima, Fuyuki; Maeda, Atsutaka | In this talk, we will discuss the implication of the results. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1722 | Dynamic Penetration Field of Vortices in a Superconductor in a Time-Dependent Magnetic Field | Sheikhzada, Ahmad; Gurevich, Alexander | We address the nonlinear dynamics of penetration of vortices in a superconductor subject to a periodic magnetic field $H(t)=H_0\sin\omega t$ parallel to the surface. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1723 | Glassy and plastic vortex creep regimes in superconducting (Y,Gd)Ba2Cu3Oy films and coated conductors | Civale, Leonardo; Maiorov, Boris; Nekrashevich, Ivan; Miura, Masashi | We will present results on (Y,Gd)Ba 2Cu 3O y coated conductors with randomly distributed BaHfO 3 nanoparticles. | Session 123: Superconductivity: Critical Current and Vortex Dynamics |
| 1724 | Interacting multi-channel topological boundary modes in a quantum Hall valley system | Randeria, Mallika | Interacting multi-channel topological boundary modes in a quantum Hall valley system | Session 124: Nematicity in Topological and Superconducting Materials |
| 1725 | Odd-parity multipolar orders in the spin–orbit-coupled metal Cd2Re2O7 | Tajima, Satoshi; Hirai, Daigorou; Tokunaga, Masashi; Takigawa, Masashi; Kobayashi, Tatsuo; Hasegawa, Takumi; Hiroi, Zenji | Here we report our recent experimental progress and review the present understanding of the SOCM Cd 2Re 2O 7. | Session 124: Nematicity in Topological and Superconducting Materials |
| 1726 | Nematic Superconductivity | Kozii, Vladyslav; Fu, Liang; Venderbos, Jorn; Isobe, Hiroki | In this talk, I will discuss the theoretically predicted properties of these compounds and their relation to the existing experiments. | Session 124: Nematicity in Topological and Superconducting Materials |
| 1727 | Nematicity in normal and superconducting states of twisted bilayer graphene | Jarillo-Herrero, Pablo | In this talk I will review our recent experiments on magic-angle twisted bilayer graphene which show normal state and superconducting state anisotropies in the resistivity and critical magentic field, respectively. | Session 124: Nematicity in Topological and Superconducting Materials |
| 1728 | Spin-polarized correlated insulator and superconductor in twisted double bilayer graphene. | Liu, Xiaomeng; Hao, Zeyu; Khalaf, Eslam; Lee, Jong Yeon; Watanabe, Kenji; Taniguchi, Takashi; Vishwanath, Ashvin; Kim, Philip | In this talk, I will present our experimental study of moire flat band in twisted double bilayer graphene (TDBG). | Session 124: Nematicity in Topological and Superconducting Materials |
| 1729 | Multi-modal microscopy and spectroscopy of wide band gap semiconductors | Oliver, Rachel | Thus, I will introduce methods that allow different microscopy techniques to be brought to bear on exactly the same nanoscale structure, revealing more about its characteristics than any individual technique could achieve alone. | Session 125: Optical Probes and Imaging of Defects |
| 1730 | Far-infrared spectroscopy of shallow thermal donors and dilute impurities in high-purity silicon | Martinez, Vladimir; Tanner, David; Adhikari, Rana; Arai, Koji; Brooks, Aidan; Wipf, Christopher | Using the results of our transmission spectra, we can determine the type of impurities in the sample and their concentration. | Session 125: Optical Probes and Imaging of Defects |
| 1731 | Multidimensional Coherent Spectroscopy of Erbium Doped GaAs Quantum Wells | Boutelle, Robert; Autry, Travis; Mirin, Richard; Silverman, Kevin | To better understand the interaction of rare-earth doping, we investigate the effect of dilute erbium doping in GaAs quantum wells. | Session 125: Optical Probes and Imaging of Defects |
| 1732 | Deep UV Photoluminescence and Chemical composition Analysis of Residual Impurities in Hexagonal boron nitride | Maharjan, Nikesh; Khan, Neelam; Edgar, James; Janzen, Eli; Nakarmi, Mim | Deep UV Photoluminescence and Chemical composition Analysis of Residual Impurities in Hexagonal boron nitride | Session 125: Optical Probes and Imaging of Defects |
| 1733 | Independent determination of carrier densities and analysis of different recombination channels in GaAs PL and EL through Raman scattering of LO phonon – plasmon coupled mode | Zhang, Fan; Zhang, Yong | An ABC model is widely used to describe the carrier recombination, where the contributions of non-radiative, radiative, and Auger recombination are partitioned, respectively, into the three terms in R = An + Bn 2 + Cn 3. | Session 125: Optical Probes and Imaging of Defects |
| 1734 | Understanding the Fluorescence Mechanism of Carbon Dots through Single-Molecule Excited-State Imaging | Nguyen, Huy; Srivastava, Indrajit; Lyding, Joseph; Pan, Dipanjan; Gruebele, Martin | We employed scanning tunneling microscopy (STM) and single molecule absorption STM (SMA-STM) to study the fluorescence mechanism in carbon dots (Cdots). | Session 125: Optical Probes and Imaging of Defects |
| 1735 | Charge sensing in CMOS devices using reflectometry | Rivard, Joffrey; Godfrin, Clément; Orlov, Alexei; Dupont-Ferrier, Eva | In this talk, we report on optimization of reflectometry setups at low temperature and discuss the use of tunable capacitors for in situ tuning targeting high sensitivity RF-measurement for spin qubit readout. | Session 125: Optical Probes and Imaging of Defects |
| 1736 | Infrared Transmission of Ge:Mn Thick Films Prepared by Ion Implantation and Post-Annealing | Obied, Laila; Roorda, Sjoerd; Zhou, Shenqiang; Prucnal, Slawomir; Crandles, David | Infrared Transmission of Ge:Mn Thick Films Prepared by Ion Implantation and Post-Annealing | Session 125: Optical Probes and Imaging of Defects |
| 1737 | Photon Statistics as an Analytical Tool in Solid-State Defect Systems | Fishman, Rebecca; Patel, Raj; Hopper, David; Huang, Tzu-Yung; Bassett, Lee | We briefly discuss the history and development of photon correlation spectroscopy as a measurement tool and outline methods for proper acquisition and analysis of photon statistics. | Session 125: Optical Probes and Imaging of Defects |
| 1738 | Spatiotemporal Microwave Imaging of Photo-carrier Dynamics in Monolayer Semiconductors | Chu, Zhaodong; Wang, Chun Yuan; Quan, Jiamin; Zhang, Chenhui; Lei, Chao; Han, Ali; Ma, Xuejian; Tang, Hao-Ling; Abeysinghe, Dishan; Staab, Matthew; Zhang, Xixiang; MacDonald, Allan; Tung, vincent; Shih, Chih-Kang; Li, Xiaoqin (Elaine); Lai, Keji | Here, we report the simultaneous spatial and temporal photoconductivity imaging in WS 2 monolayers by laser-illuminated microwave impedance microscopy. | Session 125: Optical Probes and Imaging of Defects |
| 1739 | Photodegradation of Si-doped GaAs Nanowire | Pimenta, Ana Clara; Limborço, Henrique; Pérez, Juan Carlos; Taborda, Nestor; Ramos, Sérgio Luís; Matinaga, Franklin | In this work we investigated the photodegradation of a single Si-doped GaAs NW by laser heating in air. | Session 125: Optical Probes and Imaging of Defects |
| 1740 | Defect induced photoluminescence in SnO2 nanostructures: Evaluation and Utilization for optical sensing and waveguide application | SAHU, BINAYA; Juine, Rabindranath; Das, Arindam | Defect induced photoluminescence in SnO2 nanostructures: Evaluation and Utilization for optical sensing and waveguide application | Session 125: Optical Probes and Imaging of Defects |
| 1741 | Particle transmutations in flat-band lattices: bosons to fermions, fermions to composite fermions | Maiti, Saurabh; Sedrakyan, Tigran | In this talk, we will draw our attention to the consequences of one particular scheme that is designed to be applicable for various interesting 2D lattices. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1742 | Coherent states, Gram matrix, and Hofstadter butterfly with flat band | Xu, Youjiang; Pu, Han | We find that the Gram matrices of certain subsets of coherent states, whose associating eigenvalues form a lattice on the complex plane, can be interpreted as Hamiltonians which govern the dynamics of a particle hopping around the lattice under a gauge field. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1743 | Chern-Simons fermionization approach to the chiral spin liquid on a frustrated square lattice with moat band | Wang, Rui; Xie, Z. Y.; Zou, Haiyuan; Su, Wei; Sedrakyan, Tigran; Wang, Baigeng; Xing, D. Y. | We analytically derive the low-energy effective field theory, and predict a possible non-uniform chiral spin-liquid (CSL) ground state. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1744 | Viscous Topological Electromagnetic Phases of Matter | Jacob, Zubin | We present the fundamental model of a topological electromagnetic phase of matter: viscous Maxwell-Chern-Simons theory. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1745 | Imaging impurities at quantum Hall edges in graphene: Dissipation rings induced by forward scattering | Zhang, Gu; Gornyi, Igor; Mirlin, Alexander | Motivated by the recent experiment by Marguerite et al. on imaging in graphene samples, we investigate theoretically the dissipation induced by resonant impurities in the quantum Hall regime. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1746 | Repulsive Casimir force in time-reversal symmetry broken media | Li, Zhou; Jacob, Zubin | When one of the silicon plates is replaced by a medium with time-reversal symmetry breaking (usually achieved by an external magnetic field), we show that the Casimir force can become repulsive. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1747 | Supersymmetry approach to interacting disordered systems: the SYK model | Sedrakyan, Tigran; Efetov, Konstantin | In this talk, we propose a new, supersymmetric sigma-model representation for interacting disordered fermion systems. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1748 | Spin and charge correlations across the metal-to-insulator crossover in the half-filled 2d Hubbard model | Kim, Aaram; Simkovic, Fedor; Kozik, Evgeny | We study signatures of this crossover in spin and charge correlation functions and present results obtained with controlled accuracy using diagrammatic Monte Carlo in the range of parameters amenable to experimental verification with ultracold atoms in optical lattices. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1749 | Equation of state and entropy of the doped 2d Hubbard Model | Lenihan, Connor; Kim, Aaram; Kozik, Evgeny; Simkovic, Fedor | We study thermodynamic properties of the doped Hubbard model with nearest-neighbour hopping on the square lattice by Diagrammatic Monte Carlo and obtain results with controlled error bars in the thermodynamic limit. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1750 | Pseudogap effects in the unitary Fermi gas and in strongly interacting 2D Fermi gases | Jensen, Scott; Alhassid, Yoram; Gilbreth, Christopher | We use similar methods to study pseudogap effects in interacting 2D Fermi gases along the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensation (BEC) crossover. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1751 | Implicit renormalization approach to the problem of Cooper instability | Chubukov, Andrey; Prokof’ev, Nikolai; Svistunov, Boris | We discuss the problem of determining Tc from known system properties at temperatures T >> Tc, and stress that this cannot be done reliably by following the standard protocol of solving for the largest eigenvalue of the original gap-function equation. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1752 | Photoinduced superconducting-like properties: η-pairing and charge stiffness in optically driven Mott-Hubbard systems | Kaneko, Tatsuya; Yunoki, Seiji; Millis, Andrew | We theoretically investigate the electron-electron (superconducting) pairing correlations and charge stiffness in the one-dimensional Hubbard model subjected to a pump electric field. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1753 | Pairing tendencies in two-orbital Hubbard models with reduced sign problem | Huang, Edwin; Vaezi, Abolhassan | How unconventional superconductivity arises from strong repulsive interactions is a central question in the study of high-temperature superconductivity. | Session 126: Precision many-body physics: Non-perturbative QFT |
| 1754 | Band-Gap-Dependent Electronic Compressibility of Carbon Nanotubes in the Wigner Crystal Regime | Lotfizadeh, Neda; McCulley, Daniel; Senger, Mitchell; Fu, Han; Minot, Ethan; Skinner, Brian; Deshpande, Vikram | We observe two qualitatively different trends in compressibility versus carrier number, both of which can be explained using a theoretical model of a Wigner crystal that accounts for both the band gap and the confining potential experienced by charge carriers. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1755 | Beating the Detailed Balance Limit in Ideal Carbon Nanotube pn diodes | Dhakras, Prathamesh; Comfort, Everett; Lee, Ji Ung | We show that the open-circuit voltage can be tuned in direct proportion to n and achieve a V OC that is 3 times higher than that given by the DB limit of an ideal pn diode. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1756 | Electrical Transport of One-Dimensional Atomic Tellurium Nanowires Scaling Down to Two Nanometer Limit | Liao, Pai-Ying; Qin, Jingkai; Qiu, Gang; Si, Mengwei; Zhang, Siqi; Yap, Yoke; Ye, Peide (Peter) | Here, we systematically studied the electronic transport properties of 1D Te devices scaling down to 2 nm limit in diameter. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1757 | Fabrication and characterization of ultrathin Ta2(Pd or Pt)3Se8 nanowires | Joshy, Abin; Ling, Yun; Liu, Xue; Steely, Andrew; Blair, Gavin; Antipina, Liubov; Sorokin, Pavel; Sanchez, Ana; Mao, Zhiqiang; Wei, Jiang | In this work, we used cost-effective and easily processable liquid phase exfoliation technique to achieve molecularly thin wires. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1758 | Carbon nanotube photocurrent quantum yield greater than 100% | Senger, Mitchell; McCulley, Daniel; Bertoni, Andrea; Perebeinos, Vasili; Minot, Ethan | Our work suggests there are conditions for which efficient exciton dissociation co-exists with efficient impact ionization. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1759 | Temperature-Dependent Thermoelectric Transport in Polymer-Sorted Semiconducting Carbon Nanotube Networks with Different Diameter Distributions | Statz, Martin; Schneider, Severin; Berger, Felix; Lai, Lianglun; Wood, William; Zaumseil, Jana; Sirringhaus, Henning | offers insights into transport energetics, potential contributions from electron-electron and electron-phonon interactions and the relative contributions of inter- versus intra-CNT transport. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1760 | Applying Machine Learning to Thermal Conductance | Kerr, Alexander; Mullen, Kieran; Glatzhofer, Daniel; Huang, Liangliang | Machine learning provides a new approach in materials design. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1761 | Carbon Nanotube Alignment Dynamics under Electric Fields in Different Solutions | Rahman, Atiqur; Zubair, Ahmed | The findings of this report will be helpful for establishing an effective technique of producing large-scale aligned CNT films for diverse applications. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1762 | Achieving Global Alignment of Single-Wall Carbon Nanotube Films through Electrostatic Control | Walker, Joshua; Fagan, Jeffrey; Biacchi, Adam; Kuehl, Valerie; Searles, Thomas; Hight Walker, Angela; Rice, William | Here, we use an automated filtration platform and superhydrophobic glass to create globally aligned films from solution-based SWCNTs. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1763 | Electron-phonon and phonon-phonon interaction in low-dimensional carbon materials | Chatzakis, Ioannis | In this talk, I will focus on electron-phonon interactions in low dimensional carbon materials. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1764 | A Raman study of G-bands in isolated and bundled triple-walled carbon nanotubes | Hue, Jia Wern; Hirschmann, Thomas; Kim, Yoong Ahm; Barbosa Neto, Newton; Araujo, Paulo | A Raman study of G-bands in isolated and bundled triple-walled carbon nanotubes | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1765 | High pressure Raman spectroscopy of Linear carbon chain encapsulated in isolated multiwall carbon nanotube | Sharma, Keshav; Costa, Nathalia; Paschoal, Alexandre; Araujo, Paulo | High pressure Raman spectroscopy of Linear carbon chain encapsulated in isolated multiwall carbon nanotube | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1766 | Raman Spectra of Vertical Graphene Nanosheets | Lu, ChunYu; Al-Hagri, Abdulrahman; Rajput, Nitul; Chiesa, Matteo | In this work, we review the recent advance of Raman characterization results on PECVD-grown VGNs. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1767 | Manipulating high-harmonic generation in single walled carbon nanotubes | Yanagi, Kazuhiro; Nishidome, Hiroyuki; Nagai, Kohei; Uchida, Kento; Ichinose, Yota; Yomogida, Yohei; Tanaka, Koichiro | Here, we demonstrate manipulation of HHG by tuning the electronic structure and carrier densities using single-wall carbon nanotubes with tuned electronic structures and Fermi levels. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1768 | Polymer Host for Optical and Terahertz Spectroscopy of Low-Aggregation Nanoparticle Films | Wladkowski, Henry; Duarte, Julian; Fagan, Jeffrey; Blackburn, Jeffrey; Nandyala, Shashank ram; Pikal, Jon; Rice, William | Here, we present a rapid, facile, and low-cost technique for producing 100 μm-thick nanoparticle-polymer films that exhibit high uniformity, low aggregation, excellent optical transparency, and low terahertz absorption. | Session 127: Physical properties of carbon nanotubes, 1D structures derived from 2D materials, and nanowires |
| 1769 | Design and implementation of professional development workshops that support women in STEM in Tanzania | Wenderott, Jill; Elisadiki, Joyce | This talk will discuss the stages of professional development workshop creation, as well as anticipated outcomes and long-term goals of the program. | Session 128: Physics Outreach, Education and Society |
| 1770 | A Free Renewable Energy-based Physics Day Camp for Middle School Girls | Ramos, Roberto | A Free Renewable Energy-based Physics Day Camp for Middle School Girls | Session 128: Physics Outreach, Education and Society |
| 1771 | Scientists in Public Service: Running for office as a STEM candidate | Naughton, Shaughnessy | Scientists in Public Service: Running for office as a STEM candidate | Session 128: Physics Outreach, Education and Society |
| 1772 | Making a basic mathematics course compulsory for everyone studying science at pre-college and college level | Mandal, Pritam | From a study based on personal teaching experiences and one-to-one and in-group interaction with a large number of students (9 th to 12 th Grade and UG levels) and teachers across India, we found that science students not having mathematics in their subject combination, suffer from physics-phobia. | Session 128: Physics Outreach, Education and Society |
| 1773 | Coexisting Strange Metal and Fermi Liquid Collective Excitations in Sr2RuO4 | Husain, Ali; Mitrano, Matteo; Rak, Melinda; Rubeck, Samantha; Yang, Hongbin; Nakamura, Fumihiko; Sow, Chanchal; Maeno, Yoshiteru; Batson, Philip; Abbamonte, Peter | Here, we present M-EELS results on Sr 2RuO 4 showing that it exhibits both a strange metal continuum and a well-defined low-energy collective mode below 100 meV propagating at near the Fermi velocity. | Session 129: Strange Metals |
| 1774 | Classical Glasses, Black Holes, and Strange Quantum Liquids | Facoetti, Davide; Biroli, Giulio; Kurchan, Jorge; Reichman, David | From the dynamics of a broad class of classical mean-field glass models we construct a quantum model with finite zero-temperature entropy, a quantum transition at zero temperature, and a time-reparametrization (quasi-)invariance in the dynamical equations for correlations. | Session 129: Strange Metals |
| 1775 | A hydrodynamical description for transport in the strange metal phase of cuprates | Amoretti, Andrea | In this talk I will show that in the strange metal phase of the cuprates, a whole set of transport coefficients are described by a universal hydrodynamic framework once one accounts for the effects of quantum critical charge density waves. | Session 129: Strange Metals |
| 1776 | Strange metallic magnetotransport in electron-doped cuprates | Poniatowski, Nicholas; Sarkar, Tarapada; Mandal Sarkar, Pampa; Greene, Richard | In this talk, we discuss other signatures of strange metallicity at higher temperatures (50-300 K) in these compounds as evidenced by magnetotransport experiments. | Session 129: Strange Metals |
| 1777 | Ubiquitous power law behaviour in the self energy of Strange Metals | Smit, Steef | This work presents the accurately extracted self-energies vs. energy and temperature, and often made assumptions such as k-independent self-energies are discussed. | Session 129: Strange Metals |
| 1778 | Microscopic origin of the `strange’ metal | Lee, Kyungmin; Patel, Aavishkar; Trivedi, Nandini; Sachdev, Subir | We study a disordered Anderson-Hubbard lattice model of strongly interacting fermions. | Session 129: Strange Metals |
| 1779 | Incoherent Strange Metal Sharply Bounded by a Critical Doping in Bi2212 | Chen, Su-Di; Hashimoto, Makoto; He, Yu; Song, Dongjoon; Xu, Kejun; He, Junfeng; Devereaux, Thomas; Eisaki, Hiroshi; Lu, Donghui; Zaanen, Jan; Shen, Zhixun | To study this state, we use angle-resolved photoemission spectroscopy to directly measure its spectral function. | Session 129: Strange Metals |
| 1780 | The optical conductivity of (K,Rb,Cs)Fe2As2: hidden temperature behaviors and electronic correlations strength | Lobo, Ricardo | A two-Drude analysis of the data quantitatively describes the Kramers-Kronig obtained optical conductiity of all compositions. | Session 129: Strange Metals |
| 1781 | 13C NMR measurement of θ-(BEDT-TTF)2I3 in non-Fermi liquid region | Miyagawa, Kazuya; Murase, Hideaki; Sato, Takuro; Tamura, Masafumi; Kanoda, Kazushi | In this study, the 13C NMR spectra and the 1/T 2, which captures slow fluctuations in the order of kHz were measured. | Session 129: Strange Metals |
| 1782 | Machine learning of non-Fermi liquid transport in quantum critical metals | Driskell, George; Lederer, Samuel; Bauer, Carsten; Trebst, Simon; Kim, Eun-Ah | Building on earlier work, we apply quantum loop topography (QLT) and supervised learning on quantum Monte Carlo data to examine the Fermi liquid to non-Fermi liquid crossover in models of both Ising nematic and spin density wave quantum criticality. | Session 129: Strange Metals |
| 1783 | Normal state properties of quantum-critical metals at finite temperatures | Klein, Avraham; Schattner, Yoni; Berg, Erez; Chubukov, Andrey | Recent years have seen an intense effort to study models of fermionic quantum criticality and superconductivity via sign-problem-free quantum Monte Carlo. | Session 129: Strange Metals |
| 1784 | Supermetal | Isobe, Hiroki; Fu, Liang | Owing to scale invariance, we perform a renormalization group (RG) analysis to find a nontrivial metallic behavior where various divergent susceptibilities coexist but no long-range order appears. | Session 129: Strange Metals |
| 1785 | A symmetry-breaking analysis for non-Fermi liquids induced by order fluctuations in correlated electron systems | She, Zhen-Su; Li, Rong | Here, we present a symmetry-breaking analysis for establishing this relationship. | Session 129: Strange Metals |
| 1786 | The role of electron-electron collisions for charge and heat transport at intermediate temperatures | Lee, Woo-Ram; Finkelstein, Alexander; Michaeli, Karen; Schwiete, Georg | We study electric, thermal and thermoelectric transport in correlated electron systems in the intermediate temperature regime, in which elastic and inelastic scattering are both important. | Session 129: Strange Metals |
| 1787 | Charge Transport in the Non-ergodic Extended phase of Quasi-periodic systems | Ghosh, Soumi; Gidugu, Jyotsna; Mukerjee, Subroto | We study the transport properties and the spectral statistics of a one-dimensional closed quantum system of spinless fermions in a quasi-periodic potential which produces a single particle mobility edge. | Session 129: Strange Metals |
| 1788 | Unconventional superconductivity in UTe2 | Butch, Nicholas | Unconventional superconductivity in UTe2 | Session 130: New Perspectives on Superconductivity in F- & D- Electron Systems — From the Unconventional to the Topological |
| 1789 | Manipulation of time reversal symmetry breaking superconductivity in Sr2RuO4 by uniaxial strain | Klauss, Hans-Henning; Grinenko, Vadim; Ghosh, Shreenanda; Sarkar, Rajib; Brückner, Felix; Orain, Jean-Christophe; Nikitin, Artem; Das, Debarchan; Guguchia, Zurab; Park, Joonbum; Barber, Mark; Kikugawa, Naoki; Bobowski, Jake; Sokolov, Dmitry; Luetkens, Hubertus; Maeno, Yoshiteru; Mackenzie, Andrew; Hicks, Clifford | We observed a large stress-induced splitting between the onset temperatures of superconductivity and TRSB. | Session 130: New Perspectives on Superconductivity in F- & D- Electron Systems — From the Unconventional to the Topological |
| 1790 | Knight Shift and Leading Superconducting Instability From Spin Fluctuations in Sr2RuO4 | Rømer, Astrid; Eremin, Ilya; Hirschfeld, Peter; Andersen, Brian | We perform a detailed theoretical study of spin-fluctuation mediated superconductivity guided by the spin-fluctuation spectrum measured from neutron scattering of this compound. | Session 130: New Perspectives on Superconductivity in F- & D- Electron Systems — From the Unconventional to the Topological |
| 1791 | Interplay of heavy fermion quantum criticality and unconventional superconductivity | Steglich, Frank; Stockert, Oliver; Arndt, Julia; Jeevan, Hirale; Krellner, Cornelius; Yuan, Huiqiu; Smidman, Michael; Schuberth, Erwin; Tippmann, Marc; Steinke, Lucia; Si, Qimiao; Nica, Emilian; Yu, Rong | Based on atomic – substitution, neutron – scattering and penetration – depth results we show that CCS cannot be an (isotropic/anisotropic) s-wave superconductor but is best described by a model for a fully gapped two-band d-wave superconductor [G. M. Pang et al., Proc. | Session 130: New Perspectives on Superconductivity in F- & D- Electron Systems — From the Unconventional to the Topological |
| 1792 | Pairing Tendencies, Orbital Selective Mott Phases, and Magnetic Block States in Multiorbital Models for Iron-Based Ladders and Chains | Dagotto, Elbio | Similarly as in Cu-oxide ladders, computational calculations using correlated electronic models can be performed with good accuracy in quasi-1D systems. | Session 130: New Perspectives on Superconductivity in F- & D- Electron Systems — From the Unconventional to the Topological |
| 1793 | Quantized energy pumping in quasi-periodically driven Nitrogen Vacancy Centres | Chandran, Anushya; Martin, Ivar; Crowley, Philip | We show these remarkable signatures to be realized in experiments in Nitrogen Vacancy centres. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1794 | Z2 topological quench dynamics | Chiu, Pok-Man; Chang, Po-Yao | In this talk, we present a quench setup for a realization of a Z2 topological quench dynamics in 3+1 dimensions. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1795 | Photoinduced interfacial chiral modes in threefold topological semimetal | Islam, Seikh; Zyuzin, Alexander | We investigate the chiral electronic modes at the interface between two regions of a threefold topological semimetal, which is illuminated by left and right handed elliptically polarized waves. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1796 | Space-time group symmetry and response functions Congjun Wu University of California, San Diego | Wu, Congjun | This work will provide useful guidance for studying physical properties in time-dependent systems. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1797 | Electrons in Narrow-Band Moire Graphene: Electric and Magnetic Two-Dimensional Bloch Oscillations | Dong, Zhiyu; Fahimniya, Ali; Levitov, Leonid | Electrons in Narrow-Band Moire Graphene: Electric and Magnetic Two-Dimensional Bloch Oscillations | Session 131: Quenches and Transport in Driven Topological Systems |
| 1798 | Energy filtered leads for quantized transport in Floquet systems | Lindner, Netanel; Kruse, Mads; Rudner, Mark | We show that quantization of the differential conductance can be restored by connecting the system and the leads via an energy filter. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1799 | Photoinduced Topological Phase Transition and Optical Conductivity of Black Phosphorene | kang, yousung; Moon, Kyungsun | We theoretically study the photoinduced topological phase transition of black phosphorene induced by laser light with moderate-intensity, which can satisfy the experimentally realistic requirement to preserve the quality of the sample. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1800 | Enhancement of High Harmonics Generation by Floquet Engineering | Kumar, Abhishek; Li, Yantao; Seradjeh, Babak | We formulate a theory of high-harmonic current using Floquet theory of periodically driven systems. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1801 | Correlation-Enhanced Quantized Charge Pumping | Marks, Jacob; Schüler, Michael; Budich, Jan; Devereaux, Thomas | To explore this, we study a prototypical Su-Schreiffer-Heefer model with non-local interaction that gives rise to orbital charge density wave order, and characterize the impact of this order on the model’s topological properties. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1802 | Stability of dynamical quantum phase transitions in quenched topological insulators: From multi-band to disordered systems | Mendl, Christian; Budich, Jan | Specifically, we provide a detailed ergodicity analysis to derive criteria for DQPTs in all spatial dimensions, and construct basic counter-examples to the occurrence of DQPTs in multi-band topological insulator models. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1803 | Observation of long excitation lifetime in photoexcited Sb-doped Bi2Se3 nanoplatelets | Gross, Adam; Hou, Yasen; Rossi, Antonio; Yu, Dong; Vishik, Inna | We will present ultrafast transient reflectivity measurements on Bi 2Se 3 and Bi 2-xSb xSe 3 nanoplatelets which reveal starkly different carrier decay dynamics in n-type vs. insulating samples. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1804 | Time-domain anyon interferometry in Kitaev honeycomb spin liquids and beyond | Klocke, Kai; Aasen, David; Mong, Roger; Demler, Eugene; Alicea, Jason | Motivated by recent evidence of a non-Abelian spin liquid in α-RuCl 3, we introduce a new experimental method for probing the edge and quasiparticle content of such a phase. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1805 | Electron localization in two-dimensional topological and non-topological bands | Krishna, Akshay; Ippoliti, Matteo; Bhatt, Ravindra | We demonstrate a method to construct nearly flat subbands with arbitrary Chern numbers, using a weak periodic potential in the lowest Landau level. | Session 131: Quenches and Transport in Driven Topological Systems |
| 1806 | Disorder Effects on Superconducting Island Arrays Proximity-Coupled to Graphene | Garrido Menacho, Rita; HUMBERT, Vincent; Mason, Nadya | To overcome this difficulty, we have developed arrays of superconducting Sn islands proximity-coupled to graphene with controllable island point disorder and graphene disorder. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1807 | The effects of charge carriers, organic solvents and magnetic ions on the superconductivity of doped 1T-SnSe2 | Wu, Hanlin; Li, Sheng; Petit, Daniel Peirano; Lv, Bing | We reported bulk superconductivity up to 7.6 K through careful manipulation of the charge carrier density and basal spacing d in the chemically intercalated two dimensional CdI 2-type 1T-SnSe 2 phase. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1808 | Uniaxial strain effect on superconductivity in 1D and 2D LaAlO3/SrTiO3 channels | Wu, Xinyi; Briggeman, Megan; Albro, Joseph; Li, Jianan; Lee, Jung-Woo; Lee, Hyungwoo; Eom, Chang-Beom; Irvin, Patrick; Levy, Jeremy | We investigate the effects of uniaxial strain on superconductivity of nanowires in LaAlO 3/SrTiO 3. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1809 | Effect of quantum fluctuations on the critical supercurrent through a mesoscopic normal-metal island | Bubanja, Vladimir | We consider the transport properties of a single-electron transistor consisting of a diffusive normal-metal island and superconducting electrodes. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1810 | Low Temperature Terahertz Nano-Imaging of BSCCO High Temperature Superconductor | Jing, Ran; Vitalone, Rocco; Berkowitz, Michael; Ni, GuangXin; Kim, Brian; Basov, Dmitri | We report THz near-field measurements of optimally doped and over-doped BSCCO-2212 thin film devices above and below their superconducting transition temperatures. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1811 | Electric Field Effects in Mesoscopic Metal Superconductors | Alegria, Loren; Boettcher, Charlotte; Yacoby, Amir | We present possible explanations and experiments underway to evince the origin of the effect. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1812 | Quasiparticle Poisoning of a Superconducting Island by Nonequilibrium Phonons | Mannila, Elsa; Maillet, Olivier; Maisi, Ville; Pekola, Jukka | In our experiment, we demonstrate how the superconducting island of a single-electron transistor is poisoned with quasiparticles and the parity effect is consequently destroyed, when another heated superconducting island is used as an emitter of nonequilibrium phonons, while a thermal phonon emitter, a similarly heated normal metal island, creates much fewer quasiparticles. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1813 | InAs nanowire Josephson junctions with in-situ grown full shell Al | Chen, I-Ju; Bjergfelt, Martin; Kanne Nordqvist, Thomas; Carrad, Damon James; Jespersen, Thomas Sand; Grove-Rasmussen, Kasper; Nygård, Jesper | In this study, we use shadow mask structures on the growth substrate to grow full shell Al-InAs-Al Josephson junction nanowires in situ. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1814 | Theory of superconductivity in an ultra-dilute fermionic liquid in the proximity of a quantum phase transition. | Chudzinski, Piotr | We study the problem of superconductivity in an extremely weakly doped narrow gap semiconductor, driven by electron-phonon coupling in a non-adiabatic regime. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1815 | Suppression of quantum metallic state in disordered Ta thin films with the addition of artificial periodic pinning centers | Kim, Eunseong; Shin, Junghyun; Park, Sun-gyu; Noh, Suhyeon | We studied the low temperature transport properties of perforated superconducting Ta films with periodic triangular array of holes to investigate the role of pinning effect on superconductor-insulator transition. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1816 | Thickness dependent study of superconducting behavior and contact dynamics in atomically thin Fe(Te0.7Se0.3) Flakes | Steely, Andrew; Yue, Chunlei; Ling, Yun; Joshy, Abin; Mao, Zhiqiang; Wei, Jiang | We present evidence of thickness dependent superconducting behavior in strain-free Fe(Te 0.7Se 0.3) flakes. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1817 | Gaussian state superposition ansatz for quantum impurity problems: Numerical methods and applications | Boutin, Samuel; Bauer, Bela | We introduce an efficient numerical method for finding the ground state approximation in this variational manifold. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1818 | Mapping Dynamical Magnetic Responses of Ultra-thin Micron-size Superconducting Films using Nitrogen-vacancy Centers in Diamond | Xu, Ying; Tian, Chuanshan | We report here an imaging method that employed NV – centers in diamond as sensor capable of mapping out the microwave magnetic field distribution on an ultrathin superconducting film of micron size. | Session 132: Superconductivity in Low Dimensional Systems III and Mesoscopic and Nanometer Scale Phenomena |
| 1819 | Two-dimensional non-Fermi liquids with quenched disorder | Nosov, Pavel; Raghu, Srinivas | We study the interplay of disorder and interactions in the exactly solvable "matrix large N" non-Fermi liquid model in two spatial dimensions. | Session 133: Non-Fermi Liquids |
| 1820 | Pairing Instability on a Luttinger Surface: A Non-Fermi Liquid to Superconductor Transition and its SYK Dual | Setty, Chandan | In this talk, I will discuss the problem of superconducting instability on a model Luttinger surface, or contours of zeros of the many-body Green function. | Session 133: Non-Fermi Liquids |
| 1821 | Low-energy level spacing and entropy change across SYK non-Fermi liquid to a Fermi Liquid transition for finite-N | Banerjee, Sumilan; Bera, Surajit; Haldar, Arijit | We study a quantum phase transition (QPT) between a Sachdev-Ye-Kitaev (SYK) non-Fermi liquid (NFL) and a Fermi liquid in a solvable large-N model where the zero-temperature residual entropy of the NFL vanishes continuously at the QPT in the large-N limit. | Session 133: Non-Fermi Liquids |
| 1822 | Phases of the t-J model with random and all-to-all hopping and exchange | Joshi, Darshan; Li, Chenyuan; Sachdev, Subir | We study a t-J model with both t and J random and all-to-all. | Session 133: Non-Fermi Liquids |
| 1823 | Fermi-surface Reconstruction in the Repulsive Fermi-Hubbard Model | Osborne, Ian; Trivedi, Nandini; Paiva, Thereza | By analyzing the single particle spectral function for the Fermi Hubbard model as a function of repulsion U and chemical potential μ, we find that the Fermi surface reconstructs from a large Fermi surface enclosing (1+ p) holes, matching the Luttinger volume as expected in a Fermi liquid, to a small Fermi surface enclosing only p holes, thereby transitioning into a non-Fermi liquid FL* phase, as the Mott insulator at half filling is approached. | Session 133: Non-Fermi Liquids |
| 1824 | Probing out-of-time-order correlators using thermofield double states | Lantagne-Hurtubise, Etienne; Plugge, Stephan; Can, Oguzhan; Franz, Marcel | We propose a new family of protocols for measurements of out-of-time order correlators (OTOCs) that do not require backward time evolution. | Session 133: Non-Fermi Liquids |
| 1825 | Non-Laudau Quantum Phase Transitions and Nearly-Marginal Fermi Liquid | Xu, Yichen; Geng, Hao; Wu, Xiaochuan; Jian, Chao-Ming; Xu, Cenke | To elaborate this connection, we propose a physical mechanism for "nearly-marginal Fermi liquid", namely the fermion self-energy scales as Σ f(iω)~i sgn(ω)|ω| α with α close to 1 in a considerable energy window. | Session 133: Non-Fermi Liquids |
| 1826 | Planckian superconductor | Cheipesh, Yevheniia; Pavlov, Andrei; Scopelliti, Vincenzo; Tworzydlo, Jakub; Gnezdilov, Nikolay | We show that at the critical coupling between a superconducting dot and the complex Sachdev-Ye-Kitaev model, known to be maximally chaotic, the pairing gap Δ behaves as η h/t P at low temperatures, where η is an order one constant. | Session 133: Non-Fermi Liquids |
| 1827 | Branching time and Many-body Chaos | Gu, Yingfei; Kitaev, Alexei; Zhai, Hui; Zhang, Pengfei | In this work, after presenting a weighting trick to calculate the branching time, we prove a bound on the branching time for a large class of systems. | Session 133: Non-Fermi Liquids |
| 1828 | A cascade of non-Fermi liquid crossovers from an interplay of local and bosonic quantum criticality | Schlief Raether, Andres Felipe; Blanco, Francisco; Chowdhury, Debanjan | We present examples of multi-orbital electronic lattice models, coupled to bosonic collective modes with modified Sachdev-Ye-Kitaev form of interactions, which become solvable when the number of orbitals and collective modes is taken to be large. | Session 133: Non-Fermi Liquids |
| 1829 | Bose Metal as a Nematic Phase Glass | Hegg, Anthony; Ku, Wei; Hou, Jinning | We present a first-of-its-kind stable microscopic theory for the Bose metal with constant particle density in the thermodynamic limit. | Session 133: Non-Fermi Liquids |
| 1830 | Exploring order-to-order transitions of Dirac fermions in the regime of strong interactions | Weber, Lukas; Wessel, Stefan | It has since been a challenge to identify models that host such transitions. | Session 133: Non-Fermi Liquids |
| 1831 | Scale Invariant Entanglement Negativity at the Many-Body Localization Transition | Gray, Johnnie; Bayat, Abolfazl; Pal, Arijeet; Bose, Sougato | Here we achieve this by studying the logarithmic negativity and mutual information between disjoint blocks of varying size across the many-body localization transition. | Session 133: Non-Fermi Liquids |
| 1832 | g=2 nonlinear sigma model revisited | Lee, Chao-Jung; Mulligan, Michael | We derive the nonlinear sigma model that describes the electrical and spin conductivities via the supersymmetric approach [4], and discuss its physical implications for various quantum phase transitions. | Session 133: Non-Fermi Liquids |
| 1833 | Avalanche induced co-existing localised and thermal regions in disordered spin chains | Crowley, Philip; Chandran, Anushya | We introduce a new dimensionless statistic that measures the effective size of the thermal bubble, and use it to numerically confirm the predictions of avalanche theory in the Anderson chain at infinite temperature. | Session 134: Metal Insulator Transition Theory |
| 1834 | Oxygen vacancy effect on the electronic structure of LaNiO3 using first-principles | Liao, Xingyu; Park, Hyowon; Singh, Vijay | In this talk, I will present DFT plus dynamical mean field theory (DMFT) calculations of LaNiO3-x for x=0, 0.25, and 0.5 in different magnetic states. | Session 134: Metal Insulator Transition Theory |
| 1835 | The metal-to-insulator transition in polar metals | Sheridan, Evan; Weber, Cedric; Griffin, Sinéad; Neaton, Jeffrey | We study the prototypical polar metal LiOsO3 as a function of strain, which acts as a benchmark to further elucidate the role of electronic correlations in the alkali osmate perovskite-based series. | Session 134: Metal Insulator Transition Theory |
| 1836 | Phase transition and instability in dimensionality-controlled artificial oxide crystals | Min, Taewon; Jeong, Seunggyo; Choi, Woo Seok; Lee, Jaekwang | Herein, by combining density functional theory calculations with optical and electrical measurements, we investigate dimensionality-induced MIT in atomically well-defined SrRuO 3/SrTiO 3 (SRO/STO) superlattices. | Session 134: Metal Insulator Transition Theory |
| 1837 | Theory of Dipole Insulators | Dubinkin, Oleg; May-Mann, Julian; Hughes, Taylor | In this work we extend these concepts to a new class of quantum systems having conserved charge and dipole moments. | Session 134: Metal Insulator Transition Theory |
| 1838 | Disorder in the one-dimensional half-filled extended Hubbard model | Spalding, Jon; Tam, Ka-Ming; Campbell, David; Tsai, Shan-Wen | In this talk, I will describe the effects of disorder on the phase diagram of the extended Hubbard model in one spatial dimension. | Session 134: Metal Insulator Transition Theory |
| 1839 | Electronic and Lattice Dynamical Properties of MgTa2O6 | Miller, Kyle; Rondinelli, James | Here we investigate the propensity for MIT in MgTa 2O 6, a d 0 insulator, upon electron doping. | Session 134: Metal Insulator Transition Theory |
| 1840 | Theoretical study of electronic and structural phase transitions in MPS3 with M = (Fe, Ni, Mn, Co) | Kim, Minsung; Kim, Heung-Sik; Haule, Kristjan; Vanderbilt, David | We discuss the origin and the relation of the two types of phase transitions and clarify the role of the electron correlation and interlayer stacking configurations. | Session 134: Metal Insulator Transition Theory |
| 1841 | Insight into the insulator-to-metal transition in ruthenium A2Ru2O7 pyrochlores | Puggioni, Danilo; Laurita, Geneva; Seshadri, Ram; Rondinelli, James | Here, using first principle calculations, we study the role of disorder, in the form of cation off-centering, on the compositionally-controlled IMT in the oxide pyrochlore (Pr 1−xBi x) 2Ru 2O 7. | Session 134: Metal Insulator Transition Theory |
| 1842 | Metal-insulator transition in a Hubbard model with random and all-to-all hopping and exchange | Tarnopolsky, Grigory; Sachdev, Subir | We present large M (for a model with SU( M) spin symmetry) and renormalization group analyses of a metal-insulator transition in this model. | Session 134: Metal Insulator Transition Theory |
| 1843 | Many Body Localization Due to Correlated Disorder in Fock Space | Ghosh, Soumi; Acharya, Atithi; Sahu, Subhayan; Mukerjee, Subroto | In this work we perform a systematic quantitative exploration of the nature of correlations of the Fock space potential required for localization. | Session 134: Metal Insulator Transition Theory |
| 1844 | Current driven first order metal-metal martensitic phase transitions in correlated electron systems | Barnes, Stewart | Current driven first order metal-metal martensitic phase transitions in correlated electron systems | Session 134: Metal Insulator Transition Theory |
| 1845 | Theoretical phase diagram of unconventional alkali-doped fullerides | De Silva, Theja | By constructing an effective model based on recently calculated ab initio bare interaction parameters, we study the phase diagram of alkali-doped fullerides as a function of temperature and internal pressure. | Session 134: Metal Insulator Transition Theory |
| 1846 | Operator growth in disordered systems, a translation invariant approach | Cao, Xiangyu | Operator growth in disordered systems, a translation invariant approach Recently, we proposed [1] a general framework to study operator growth and complexity, using the Lanczos algorithm (aka Krylov subspace or recursion method). | Session 134: Metal Insulator Transition Theory |
| 1847 | Electrostatic gating Effects on the Metal to Mott Insulator Transition of NiS2: a DFT+DMFT study | Day-Roberts, Ezra; Birol, Turan; Fernandes, Rafael | Here, we present results of a first-principles study of this material using fully charge self-consistent Dynamical Mean Field Theory (DFT+DMFT). | Session 134: Metal Insulator Transition Theory |
| 1848 | Atomic-scale spectroscopy of 2D Transition metal dichalcogenide heterostructures | Shabani, Sara; Pasupathy, Abhay | In this talk, we will describe complementary single-particle measurements of the electronic structure of these heterostructures using scanning tunneling microscopy (STM) and spectroscopy. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1849 | Unraveling the Tunneling Spectrum of Bernal Stacked Bilayer Graphene | Davenport, John; Ge, Zhehao; Joucken, Frederic; Quezada, Eberth; Taniguchi, Takashi; Watanabe, Kenji; Velasco Jr., Jairo | Our methods can be applied to MATBLG as well as other two-dimensional material systems that have a dynamical band structure. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1850 | Proximity-induced superconducting gap in the quantum spin Hall edge state of monolayer WTe2 | Luepke, Felix; Waters, Dacen; de la Barrera, Sergio; Widom, Michael; Mandrus, David; Yan, Jiaqiang; Feenstra, Randall; Hunt, Benjamin | In my talk, I demonstrate a novel dry-transfer flip technique which allows to place atomically-thin layers of WTe 2, a quantum spin hall system, on NbSe 2, a van der Waals superconductor. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1851 | Observation of Deep In-gap States of Line and Point defects in Monolayer WS2 via Scanning Tunneling Microscopy and Spectroscopy | Holbrook, Madisen; Hsu, Wei-Ting; Shih, Chih-Kang | Here we report the creation of point and line defects in WS 2 monolayers by vacuum annealing. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1852 | Determination of the trigonal warping orientation in Bernal-stacked bilayer graphene via quasiparticle interference imaging | Joucken, Frederic; Ge, Zhehao; Quezada, Eberth; Watanabe, Kenji; Taniguchi, Takashi; Velasco Jr., Jairo | We compare Fourier transforms of scattering interference maps acquired at various energies away from the charge neutrality point with joint density of states simulations. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1853 | Charge/spin density waves at the edges and mirror twin boundaries of Transition Metal Di-Chalcogenides | Krishnamurthi, Sridevi | From first-principles (DFT+U) calculations we show, however, that symmetry breaking at edges or boundaries leads to one-dimensional charge and spin density wave (C/SDW) instabilities. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1854 | Quantum spin Hall effect in twisted bilayer WTe2 measured with STM | Waters, Dacen; Lüpke, Felix; Hunt, Benjamin; Feenstra, Randall | In this work, we report scanning tunneling microscopy and spectroscopy (STM/STS) studies of twisted bilayers of WTe 2 for a variety of configurations. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1855 | Disorder-induced nonlinear Hall effect with time-reversal symmetry | Du, Zongzheng; Wang, Chunming; Li, Shuai; Lu, Haizhou; Xie, Xincheng | Here, we derive the formulas of the nonlinear Hall conductivity in the presence of disorder scattering. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1856 | Intrinsic orbital moment and prediction of a large orbital Hall effect in the 2D transition metal dichalcogenides | Bhowal, Sayantika; Satpathy, Sashi | From density-functional and tight-binding model studies, we predict the existence of a large OHE in the 2D transition metal dichalcogenides (TMDC) due to the intrinsic orbital moment induced by the broken inversion symmetry of the system. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1857 | Magnus Hall effect | Papaj, Michal; Fu, Liang | We show that in the ballistic limit the Magnus Hall conductance measures the distribution of the Berry curvature on the Fermi surface. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1858 | The Curious Magnetic Properties of Orbital Chern Insulators | Zhu, Jihang; Macdonald, Allan | We argue that in a given magnetic state, characterized for example by the sign of the anomalous Hall effect, the magnetization of an orbital Chern insulator will often have opposite signs for weak n and weak p electrostatic or chemical doping. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1859 | Hall Conductivity of Two-Dimensional Electrons in an Abrikosov Magnetic Flux Lattice | Schirmer, Jonathan; Khandelwal, Ravi; Watanabe, Kenji; Taniguchi, Takashi; Raychaudhuri, Pratap; Jain, Jainendra; Liu, Chaoxing; Das, Anindya | We study, both theoretically and experimentally, the Hall transport of two-dimensional electrons exposed to a magnetic field produced by an Abrikosov flux lattice. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1860 | Energy gaps of low filling factor quantum Hall states in two-dimensional Indium Selenide. | Shcherbakov, Dmitry; Stepanov, Petr; Yang, Jiawei; Memaran, Shahriar; Zheng, Wenkai; Watanabe, Kenji; Taniguchi, Takashi; Balicas, Luis; Lau, Chun Ning | We have fabricated high mobility few-layer InSe devices and studied them in quantum Hall regime. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1861 | Non-perturbative valley Hall effect in graphenes | Tu, Wei-Yuan; Li, Ci; Yu, Hongyi; Yao, Wang | Here we provide a non-perturbative formulation for valley Hall effect. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1862 | Edge channels in graphene with proximity-induced Spin-Orbit Interaction | Wakamura, Taro; Gueron, Sophie; Wu, NianJheng; Ferrier, Meydi; Bouchiat, Hélène; Mattevi, Cecilia; Palczynski, Pawel; Och, Mauro; Watanabe, Kenji; Taniguchi, Takashi | In this talk I will present our recent measurements of supercurrents induced through graphene/WS2 heterostructures connected to high-critical-field superconductors. | Session 135: Scanning Tunneling Microscopy of 2D Materials and Hall Effect in 2D Materials |
| 1863 | Higher order topology in superconducting and interacting electronic systems | Neupert, Titus | I will start with a review of the theoretical foundations of higher-order topology, introducing topological invariants to identify such phases as well as an explanation for their generalized topological bulk-boundary correspondence. | Session 136: New Developments in Higher Order Topology |
| 1864 | Probing the topological properties of Bismuth, a second order topological insulator | Gueron, Sophie; MURANI, Anil; Dassonneville, Bastien; Bernard, Alexandre; Kasumov, Alik; Deblock, Richard; Ferrier, Meydi; Bouchiat, Hélène | I will argue that the response’s sharp dissipation peak when the superconducting phase difference is π is a telltale sign of topological protection at the hinges [4,5]. | Session 136: New Developments in Higher Order Topology |
| 1865 | Partial Lattice Defects in Higher-Order Topological Insulators | Queiroz, Raquel; Cosma Fulga, Ion; Avraham, Nurit; Beidenkopf, Haim; Cano, Jennifer | In this work we show that higher-order topological insulators (HOTIs) can, in fact, host a single helical mode along screw or edge dislocations (including step edges) in the absence of weak topological indices. | Session 136: New Developments in Higher Order Topology |
| 1866 | Resolving the topological classification of bismuth using topological defects | Beidenkopf, Haim; Nayak, Abhay; Reiner, Jonathan; Queiroz, Raquel; Fu, Huixia; Shekhar, Chandra; Yan, Binghai; Felser, Claudia; Avraham, Nurit | We resolve the topological classification of bismuth by spectroscopically mapping the response of its boundary modes to a screw-dislocation. | Session 136: New Developments in Higher Order Topology |
| 1867 | Topological valleytronics using kink states in bilayer graphene: a valley valve and beam splitter | Li, Jing | In this talk, I will describe how we realize valley-momentum locked topological 1D channels, i.e. quantum valley Hall kink states, at internal line boundaries of two artificial domains of Bernal stacked bilayer graphene with opposite band gaps via asymmetrical gating [1]. | Session 137: Quantum Valley Hall Edge Channels: Highways for Electrons, Photons, and Surface Plasmons |
| 1868 | Polaritons in Moire Superlattices of Graphene and Boron Nitride | Basov, Dmitri | We studied the propagation of plasmon polaritons in TBG by infrared nano-imaging. | Session 137: Quantum Valley Hall Edge Channels: Highways for Electrons, Photons, and Surface Plasmons |
| 1869 | Topological photonics: slow light and solitons | Rechtsman, Mikael; Mukherjee, Sebabrata; Guglielmon, Jonathan | In this talk we will describe the realization of chiral edge states for photons in a photonic Floquet topological insulator, employing optical waveguide arrays. | Session 137: Quantum Valley Hall Edge Channels: Highways for Electrons, Photons, and Surface Plasmons |
| 1870 | The electron thickness of graphene | Ensslin, Klaus | Here we investigate the electrostatic coupling of two graphene layers, twisted by 22 degrees such that the layers are decoupled by the huge momentum mismatch between the K and K’ points of the two layers. | Session 137: Quantum Valley Hall Edge Channels: Highways for Electrons, Photons, and Surface Plasmons |
| 1871 | Atomic and electronic reconstruction at van der Waals interface in twisted 2-D materials | Yoo, Hyobin | In this talk, we will discuss the atomic reconstruction at twisted vdW interfaces and its effect on electronic structure and electrical transport behavior. | Session 137: Quantum Valley Hall Edge Channels: Highways for Electrons, Photons, and Surface Plasmons |
| 1872 | Theories of Planckian dissipation in strongly correlated systems | Patel, Aavishkar; Sachdev, Subir | We present a lattice model of fermions with N flavors and random interactions that describes a non-Fermi liquid metal at low temperatures T → 0, in the solvable limit of large N. | Session 138: Strange Metal Physics |
| 1873 | T-linear resistivity and Planckian dissipation in cuprates | Legros, Anaelle | I will present resistivity measurements supporting that T-linear resistivity as T→0 is a generic property of cuprates, associated with a universal scattering rate [1]. | Session 138: Strange Metal Physics |
| 1874 | Strange Metals and Anomalous Dimensions for Conserved Currents | Phillips, Philip | Specific models are constructed which exhibit such anomalies[1,2]. | Session 138: Strange Metal Physics |
| 1875 | Strange metallicity in the doped Hubbard model | Devereaux, Thomas | The Hubbard model represents a minimal starting point for modeling strongly correlated systems. | Session 138: Strange Metal Physics |
| 1876 | Transient trapping into metastable states in systems with competing orders | Millis, Andrew | The use of tailored radiation pulses to control materials properties by guiding order parameters across a free energy landscape is an important goal of current research. | Session 139: Light-Induced Structural Control of Electronic Phases |
| 1877 | Atomic-scale dynamics of strongly correlated materials: driving and seeing coherence with light at THz to x-ray frequencies | Johnson, Steven | Here I give an overview of some of our recent work covering two directions of development in this area. | Session 139: Light-Induced Structural Control of Electronic Phases |
| 1878 | Ultrafast spin-dynamics: TDDFT’s killer app. | Sharma, Sangeeta | In our work, using time-dependent density functional theory (TDDFT), we demonstrate that a rich control over magnetization at sub-exchange time scales (of the order of few tens of femtoseconds) is possible[1,2,3,4]. | Session 139: Light-Induced Structural Control of Electronic Phases |
| 1879 | Unraveling Momentum-Dependent Electron-Phonon Coupling and its Role in the Origin of Charge Density Wave Phases | Siwick, Bradley; Otto, Martin; Pöhls, Jan-Hendrik; René de Cotret, Laurent; Sutton, Mark | This talk will describe a new technique, ultrafast electron diffuse scattering (UEDS), which provides such information. | Session 139: Light-Induced Structural Control of Electronic Phases |
| 1880 | Evolution of the band structure of α-Sn(001) thin film on InSb(001) | Chen, Ko-Hsuan; Lin, Keng-Yung; Huang, Sheng-Wen; Cheng, Chao-Kai; Lin, Hsiao-Yu; Lien, Shang-Wei; Chang, Tay-Rong; Cheng, Cheng-Maw; Hong, Minghwei; Kwo, Jueinai | In this work, molecular beam epitaxy grown α-Sn(001) on InSb(001) and the thickness dependent angle-resolved photoemission spectroscopy (ARPES) study from 3 bilayers (BLs) to 370 BLs are reported. | Session 140: Photoemission Studies of Topological Materials |
| 1881 | Band structure study of elemental topological material α-Sn on InSb(111)B | Lin, Keng-Yung; Chen, Ko-Hsuan; Huang, Sheng-Wen; Cheng, Chao-Kai; Cheng, Cheng-Maw; Hong, Minghwei; Kwo, Jueinai | 1 In this work, α-Sn thin films were grown on InSb(111)B by molecular beam epitaxy (MBE) with epi-InSb as the starting surfaces prepared in the same MBE chamber. | Session 140: Photoemission Studies of Topological Materials |
| 1882 | Clarifying superconducting proximity effects in topological insulating (Bi1-xSbx)2Te3 films on niobium | Hlevyack, Joseph; Najafzadeh, Sahand; Lin, Meng-Kai; Hashimoto, Takahiro; Tsuzuki, Akihiro; Nagashima, Tsubaki; Zhang, Weilu; Fukushima, Akiko; Bai, Yang; Chen, Peng; Liu, Ro-Ya; Li, Yao; Floetotto, David; Avila, José; Eckstein, James; Okazaki, Kozo; Shin, Shik; Chiang, Tai-Chang | Using a novel cleavage-based “flip-chip” method, we have successfully prepared single-crystalline (Bi 1-xSb x) 2Te 3 thin films with a predetermined thickness (2-5 quintuple layers) on bulk Nb substrate. | Session 140: Photoemission Studies of Topological Materials |
| 1883 | Topological chiral crystals | Cochran, Tyler; Chang, Guoqing; Belopolski, Ilya; Manna, Kaustuv; Sanchez, Daniel; Cheng, Zijia; Yang, Xian; Multer, Daniel; Zhang, Songtian; Shumiya, Nana; Litskevich, Maksim; Yin, Jiaxin; Xu, Suyang; Felser, Claudia; Lin, Hsin; Hasan, Zahid | By combining measurements with ultraviolet and soft x-ray incident photons, we determine the topological invariant directly. | Session 140: Photoemission Studies of Topological Materials |
| 1884 | Observation of topological surface state in a superconducting material | Dhakal, Gyanendra; Hosen, Md Mofazzel; Ghosh, Ayana; Lane, Christopher; Górnicka, Karolina; Winiarski, Michal; Dimitri, Klauss; Kabir, Firoza; Sims, Christopher; Regmi, Sabin; Neff, William; Kaczorowski, Dariusz; Zhu, Jian-Xin; Klimczuk, Tomasz; Neupane, Madhab | Our study reveals the presence of topological Dirac state at the corner-point of the Brillouin zone with topological protection. | Session 140: Photoemission Studies of Topological Materials |
| 1885 | Electronic structure of PtPb4 studied by Angle-Resolved Photoemission Spectroscopy | Lee, Kyungchan; Mou, Daixiang; Wang, Lin-Lin; Jo, Na Hyun; Wu, Yun; Schrunk, Benjamin; Wilde, John; Nguyen, Manh Cuong; Estry, Amelia; Wang, Cai-Zhuang; Kreyssig, Andreas; Bud’ko, Sergey; Ho, Kai-Ming; Canfield, Paul; Kaminski, Adam | We investigate the electronic structure of PtPb 4 by using ultrahigh resolution, laser based Angle Resolved Photoemission Spectroscopy(ARPES) and Density functional theory(DFT) calculations. | Session 140: Photoemission Studies of Topological Materials |
| 1886 | Gating monolayer WTe2 devices in nano-ARPES | Nguyen, Paul; Chen, Cheng; Koch, Roland; Bostwick, Aaron; Teutsch, Natalie; Kandyba, Viktor; Barinov, Alex; Wilson, Neil; Chen, Yulin; Rotenberg, Eli; Xu, Xiaodong; Cobden, David | We investigate the effects of electrostatic doping on a 2D topological semimetal, monolayer WTe 2, employing nanometer-resolution angle-resolved photoemission spectroscopy (nano-ARPES). | Session 140: Photoemission Studies of Topological Materials |
| 1887 | Electronic Structure of Topological Material CaMnSb2 | Rong, Hongtao; He, Junbao; Cai, Yongqing; Liu, Guodong; Zhao, Lin; Xu, Zuyan; Zhou, Xingjiang | Here we report our high-resolution laser-based angle-resolved photoemission measurements on the electronic structure of CaMnSb 2. | Session 140: Photoemission Studies of Topological Materials |
| 1888 | Coexistence of topological nontrivial phase and Rashba-type surface state in HoSb | Hosen, Md Mofazzel; Dhakal, Gyanendra; Wang, Baokai; Poudel, Narayan; Singh, Bahadur; Dimitri, Klauss; Kabir, Firoza; Sims, Christopher; Regmi, Sabin; Neff, William; Murray, Daniel; Weickert, Franziska; Gofryk, Krzysztof; Pavlosiuk, Orest; Wisniewski, Piotr; Kaczorowski, Dariusz; Bansil, Arun; Neupane, Madhab | Using the high resolution angle-resolved photoemission spectroscopy (ARPES), magnetotransport, and parallel first-principles modeling, we report the discovery of a topologically nontrivial state coexisting with a Rashba-type surface state in a rare earth monopnictide semimetal. | Session 140: Photoemission Studies of Topological Materials |
| 1889 | Observation of spin polarized surface states in polar Weyl semimetal MoTe2 | Tanaka, Yuma; Bahramy, Mohammad; Takahashi, Hidefumi; Kuroda, Kenta; Yaji, Koichiro; Harasawa, Ayumi; Kondo, Takeshi; Shin, Shik; Ishiwata, Shintaro; Ishizaka, Kyoko | Here we investigate the spin polarizations of the Fermi arc features for both polar terminations by utilizing the high-resolution spin and angle-resolved photoelectron spectroscopy (SARPES). | Session 140: Photoemission Studies of Topological Materials |
| 1890 | Termination Dependent Topological Surface States in Nodal Loop Semimetal HfP2 | Sims, Christopher; Hosen, M. Mofazzel; Aramberri, Hugo; Huang, Cheng-Yi; Dhakal, Gyanendra; Dimitri, Klauss; Kabir, Firoza; Regmi, Sabin; ZHOU, XIAOTING; Chang, Tay-Rong; Lin, Hsin; Kaczorowski, Dariusz; Kioussis, Nicholas; Neupane, Madhab | Our study shows termination dependent surface states in this compound which are linked to three unique nodal loops that are confirmed to be topologically non-trivial. | Session 140: Photoemission Studies of Topological Materials |
| 1891 | Topological hinge state in a 1D stacking material | Noguchi, Ryo; Kobayashi, Masaru; Kuroda, Kenta; Takahashi, Takanari; Jiang, Zhanzhi; Xu, Zifan; Lee, Daehun; Hirayama, Motoaki; Ochi, Masayuki; Shirasawa, Tetsuro; Zhang, Peng; Lin, Chun; Bareille, Cédric; Yaji, Koichiro; Harasawa, Ayumi; Kandyba, Viktor; Giampietri, Alessio; Barinov, Alex; Kim, Timur; Cacho, Cephise; Shin, Shik; Arita, Ryotaro; Lai, Keji; Sasagawa, Takao; Kondo, Takeshi | In this contribution, we show evidence for topological hinge states in a semiconducting quasi-one-dimensional material. | Session 140: Photoemission Studies of Topological Materials |
| 1892 | Sparse Big Data Spectroscopy: Advanced techniques for maximally resolving microARPES data on topological insulators | Kotta, Erica; Miao, Lin; Xu, Yishuai; Breitweiser, Stanley; Jozwiak, Chris; Bostwick, Aaron; Rotenberg, Eli; Zhang, Wenhan; Wu, Weida; Suzuki, Takehito; Checkelsky, Joseph; Wray, L. Andrew | We develop quantitative analysis methods to obtain spectroscopic information in spite of a limited dwell time on each measured point. | Session 140: Photoemission Studies of Topological Materials |
| 1893 | Topological Lifshitz transitions and Fermi arc manipulation in Weyl semimetal NbAs | Yang, Haifeng; Yang, Lexian; Liu, Zhongkai; Sun, Yan; Bernevig, Andrei; Felser, Claudia; Yan, Binghai; Chen, Yulin | Here, by using in-situ surface decoration, we demonstrate successful manipulation of the shape, size and even the connections of SFAs in a model TWS, NbAs, and observe their evolution that leads to an unusual topological Lifshitz transition not caused by the change of the carrier concentration. | Session 140: Photoemission Studies of Topological Materials |
| 1894 | Observation of unconventional chiral fermions with long Fermi arcs in CoSi | Rao, Zhicheng | These nodes at point and R point carry nonzero Chern number and we observed two surface Fermi arcs on surface to connect their projection on (001) surface, which are related by a π rotation about Γ. | Session 140: Photoemission Studies of Topological Materials |
| 1895 | Electronic Correlations and Superconductivity in Twisted Bilayer Graphene near Magic Angle | Nadj-Perge, Stevan | In this talk, I will present the latest results from our lab on magic-angle graphene obtained using scanning tunneling microscopy/spectroscopy (STM/STS) and transport measurements [1,2]. | Session 141: Spectrocopic Measurements of Magic Angle Twisted Bilayer Graphene |
| 1896 | Flat Bands and Electronic Correlations in Graphene with and without a Twist | Kerelsky, Alexander | I will present atomically-resolved doping-dependent scanning tunneling spectroscopy studies of two graphene-based systems with emergent correlated phases due to flat bands – magic angle twisted bilayer graphene (tBG) and ABCA graphene, a simple system with a flat band without a moire potential. | Session 141: Spectrocopic Measurements of Magic Angle Twisted Bilayer Graphene |
| 1897 | Charge order and broken rotational symmetry in magic-angle twisted bilayer graphene | Mao, Jinhai; Jiang, Yuhang; Lai, Xinyuan; Haule, Kristjan; Andrei, Eva | Here we use scanning tunnelling microscopy and spectroscopy to visualize the local density of states and charge distribution in magic-angle twisted bilayer graphene. | Session 141: Spectrocopic Measurements of Magic Angle Twisted Bilayer Graphene |
| 1898 | Spectroscopic signatures of many-body correlations in magic-angle twisted bilayer graphene | Xie, Yonglong | In this talk, I will present the unusual spectroscopic characteristics found on MATBG, obtained using a scanning tunneling microscope, and describe how these correlated features allow us to establish a more concrete connection between MATBG and high-Tc cuprates beyond the phenomenological resemblance of their transport phase diagrams 4. | Session 141: Spectrocopic Measurements of Magic Angle Twisted Bilayer Graphene |
| 1899 | Spectroscopy and Correlation Effect at Magic Angle | Lian, Biao | We show that the Hartree Fock mean field theory with spontaneous spin/valley polarization and strain effect fails to capture the spectroscopy at the magic angle. | Session 141: Spectrocopic Measurements of Magic Angle Twisted Bilayer Graphene |
| 1900 | Spin-momentum Locking in an Array of Defect Lines in Gated Bilayer Graphene | Guerrero, Raul; Pelc, Marta; Chico, Leonor; Jaskolsky, Wlodzimierz; Ayuela, Andres | In this work using density functional theory calculations, we investigate an array of these defect lines in bilayer graphene. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1901 | Effect of correlation on nearly flat bands in twisted bilayer graphene | Han, Mancheon; Choi, Young Woo; Choi, Hyoung Joon | To study possible mechanisms for insulating phases, we investigate electronic and magnetic properties in TBG by performing dynamical mean-field theory calculations based on a minimal tight-binding Hamiltonian. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1902 | Visualization of the flat electronic band in twisted bilayer graphene near the magic angle twist | Utama, Iqbal; Koch, Roland; Lee, Kyunghoon; Leconte, Nicolas; Li, Hongyuan; Zhao, Sihan; Jiang, Lili; zhu, jiayi; Watanabe, Kenji; Taniguchi, Takashi; ashby, paul; Weber-Bargioni, Alexander; Zettl, Alex; Jozwiak, Chris; Jung, Jeil; Rotenberg, Eli; Bostwick, Aaron; Wang, Feng | Here, we report the visualization of the flat moiré miniband by using angle-resolved photoemission spectros-copy with nanoscale resolution (nanoARPES). | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1903 | Low Temperature Insulating State in hBN-Encapsulated Multilayer Graphene | Mazzucca, Nicholas; Bockrath, Marc; Lau, Chun Ning; Taniguchi, Takashi; Watanabe, Kenji | Here, we present evidence for the opening of a gap at low temperatures in multilayer graphene systems which are encapsulated in hBN. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1904 | Signature of Viscous Electron Flow in Graphene Using a Scanning Probe Microscope | Zirpoli, Michael; Bhandari, Sagar | The purpose of this paper is to model the viscous flow of electrons in graphene and analyze the fluid behavior. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1905 | Engineering of the electronic properties of an epitaxial graphene on an SiC(0001) substrate by manganese adatoms | Hwang, Jinwoong; Lee, Jieun; Kang, Minhee; Park, Byeong-Gyu; Denlinger, Jonathan; Mo, Sung-Kwan; Hwang, Choongyu | By using angle-resolved photoemission spectroscopy, we show that it is possible to decouple the graphene from substrate by manganese (Mn) intercalation concomitant with energy band gap opening. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1906 | Lévy flights and Hydrodynamic Superdiffusion on the Dirac Cone of Graphene | Kiselev, Egor; Schmalian, Joerg | Lévy flights and Hydrodynamic Superdiffusion on the Dirac Cone of Graphene | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1907 | Scanning tunneling microscopy and electronic transport of gold-decorated graphene devices | Riffle, Jake; Meditz, Caitlyn; Hollen, Shawna | Using a low temperature scanning tunneling microscope (STM) on graphene field effect transistors, we present simultaneous STM and electronic transport measurements of graphene devices decorated with gold adatoms. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1908 | Atomic Engineering of Monolayer Graphene: Inducing Kekulé Bond Order by Adatom Deposition | Qu, Amy; Nigge, Pascal; Gutierrez, Christopher; Kim, Jisun; Link, Stefan; Levy, Giorgio; Michiardi, Matteo; Schneider, Michael; Zhdanovich, Sergey; Starke, Ulrich; Bonn, Douglas; Burke, Sarah; Damascelli, Andrea | Using angle-resolved photoemission spectroscopy (ARPES), we observe backfolding of the Dirac cones to Γ, as well as a gap opening (2Δ = 0.22 ± 0.02 eV) at the Dirac point. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1909 | Scanning Tunneling Spectroscopy of Coupled Graphene Quantum Dots | Walkup, Daniel; Ghahari Kermani, Fereshte; Watanabe, Kenji; Taniguchi, Takashi; Zhitenev, Nikolai; Stroscio, Joseph | These charges create a writeable, tunable potential landscape for the graphene charge carriers, which we use to create isolated or coupled quantum dots in graphene. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1910 | Frictional drag between graphene and LaAlO3/SrTiO3 heterostructures | Guo, Qing; Li, Jianan; Hsu, Jen-Feng; Lee, Hyungwoo; Eom, Chang-Beom; Irvin, Patrick; D’Urso, Brian; Levy, Jeremy | Here we report Coulomb drag measurements between single-layer graphene and a conductive LaAlO 3/SrTiO 3 interface. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1911 | Visualizing broken symmetry states in the zeroth Landau level of the graphene quantum Hall system | Kim, Sungmin; Walkup, Daniel; Schwenk, Johannes; Zeng, Yihang; Ghahari Kermani, Fereshte; Le, Son; Berwanger, Julian; Watanabe, Kenji; Taniguchi, Takashi; Giessibl, Franz; Zhitenev, Nikolai; Dean, Cory; Stroscio, Joseph | Here we observe the broken symmetry states of the zeroth Landau level in graphene with Kelvin Probe Force Microscopy (KPFM) by using a millikelvin scanning probe microscope coupled with qPlus sensor. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1912 | Imaging ballistic and hydrodynamic electron flow in the Corbino geometry | Kumar, Chandan; Birkbeck, John; Perello, David; Taniguchi, Takashi; Watanabe, Kenji; Geim, Andre; Ilani, Shahal; Sulpizio, Joseph | We present our initial results on imaging electron flow in high-mobility graphene Corbino discs using a nanotube single electron transistor. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1913 | Correlation-Driven Kekule’ Dimerization and Semimetal-Insulator Transition in Strongly Isotropically Strained Graphene | Tosatti, Erio; Sorella, Sandro; Seki, Kazuhiro; Shirakawa, Tomonori; Miyakoshi, Shohei; Yunoki, Seiji | We calculate the ground state enthalpy (not just energy) of strongly strained graphene by an off-lattice quantum Monte Carlo correlated approach of great accuracy and variational flexibility, removing the limitations of earlier density-functional or rigid lattice approaches. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1914 | Enhancement of Ultrafast Photoluminescence from Deformed Graphene | Lin, Kung-Hsuan; Chen, En-Xiang; Cheng, Hao-Yu; Chen, Wei-Liang; Kataria, Monika; Chang, Yu-Ming; Chen, Yang-Fang; Su, Wei-Bin | We studied the correlation between the ultrafast photoluminescence and the morphology of graphene, and observed enhancement of the ultrafast photoluminescence from the deformed graphene. | Session 142: Graphene: bilayers, imaging transport and electronic properties, adatoms |
| 1915 | Topological Regions in a ‘Map of Materials Properties’ of Two-dimensional Materials(*) | Scheffler, Matthias | We performed extensive density-functional theory calculations of the geometries, band structures, and Z2 topological invariants of 2D honeycomb materials. | Session 143: Predictive Discoveries of Novel Two-Dimensional (2D) Materials Through Complementary High-Throughput Approaches |
| 1916 | Novel two-dimensional materials from high-throughput computational exfoliation | Mounet, Nicolas; Gibertini, Marco; Schwaller, Philippe; Campi, Davide; Merkys, Andrius; Marrazzo, Antimo; Sohier, Thibault; Castelli, Ivano; Cepellotti, Andrea; Pizzi, Giovanni; Marzari, Nicola | We have performed an extensive high-throughput screening of known inorganic materials, to identify those that could be exfoliated into novel two-dimensional monolayers [1]. | Session 143: Predictive Discoveries of Novel Two-Dimensional (2D) Materials Through Complementary High-Throughput Approaches |
| 1917 | Traditional & Exotic Semiconductors in the Two-Dimensional Limit | Zhang, Shengbai | Traditional & Exotic Semiconductors in the Two-Dimensional Limit | Session 143: Predictive Discoveries of Novel Two-Dimensional (2D) Materials Through Complementary High-Throughput Approaches |
| 1918 | Opto-electronic excitations of 2D materials: Unraveling similarities through fingerprints(*) | Draxl, Claudia | Analysis based on many-body approaches provide us insight into their intriguing features. | Session 143: Predictive Discoveries of Novel Two-Dimensional (2D) Materials Through Complementary High-Throughput Approaches |
| 1919 | Epitaxial tellurene, phosphorene and MoTe2 derivatives: from theoretical prediction to experimental observations | XIE, MAOHAI | Epitaxial tellurene, phosphorene and MoTe2 derivatives: from theoretical prediction to experimental observations | Session 143: Predictive Discoveries of Novel Two-Dimensional (2D) Materials Through Complementary High-Throughput Approaches |
| 1920 | Quantum Criticality of Semi-Dirac Fermions | Uryszek, Mikolaj; Christou, Elliot; Jaefari, Akbar; Kruger, Frank; Uchoa, Bruno | We investigate instabilities of semi-Dirac fermions toward charge and spin density wave and superconducting orders, driven by short-range interactions. | Session 144: Quantum Criticality Theory |
| 1921 | Quantum Criticality of Multiband Polar Metals | Volkov, Pavel; Coleman, Piers; Chandra, Premala | We show that quantum criticality of multiband polar metals is of particular interest, as a strong coupling of the charge carriers to the critical mode can be realized near the band crossings in momentum space. | Session 144: Quantum Criticality Theory |
| 1922 | Deconfined quantum criticality in the 2D J-Q model | Zhao, Bowen; Sandvik, Anders | To test the DQCP proposal, which is based on a quantum field theory that cannot be solved, numerical studies of various lattice models have been considered. | Session 144: Quantum Criticality Theory |
| 1923 | Quantum Critical Ballistic Transport in Two-Dimensional Fermi Liquids | Chandra, Mani; Kataria, Gitansh; Sahdev, Deshdeep | We show that the ballistic regime in two-dimensional Fermi liquids is a quantum critical point (QCP) on the regime boundary separating Ohmic and hydrodynamic transport. | Session 144: Quantum Criticality Theory |
| 1924 | Collusion of Interactions and Disorder at the Superfluid-Insulator Transition: A Dirty 2d Quantum Critical Point | Goldman, Hart; Thomson, Alex; Nie, Laimei; Bi, Zhen | We study the stability of the Wilson-Fisher fixed point of the quantum O(2N) vector model to quenched disorder in the large-N limit. | Session 144: Quantum Criticality Theory |
| 1925 | Deconfined quantum critical point in the extended Hubbard model: a sign-problem-free quantum Monte Carlo study | Cai, Xun; Li, Bohai; Li, Zixiang; Yao, Hong | Here we study the quantum phase diagram and phase transition on an extended Hubbard model of fermions on the square lattice. | Session 144: Quantum Criticality Theory |
| 1926 | Deconfined quantum criticality and emergent SO(5) symmetry in fermionic systems | Li, Zixiang; Jian, Shaokai; Yao, Hong | Consequently, we establish a promising arena of DQCP with emergent SO(5) symmetry in interacting systems of fermions. | Session 144: Quantum Criticality Theory |
| 1927 | Exploring a quantum critical point in the 3D Hubbard model using the dynamical cluster approximation | Kellar, Samuel; Tam, Ka-Ming | Exploring a quantum critical point in the 3D Hubbard model using the dynamical cluster approximation | Session 144: Quantum Criticality Theory |
| 1928 | Many-body chaos in the antiferromagnetic quantum critical metal | Lunts, Peter; Patel, Aavishkar | We compute the scrambling rate at the antiferromagnetic (AFM) quantum critical point, using the fixed point theory of Phys. | Session 144: Quantum Criticality Theory |
| 1929 | Monopole hierarchy at a quantum critical point between a Dirac spin liquid and an antiferromagnet | Dupuis, Eric; Witczak-Krempa, William | We revisit the hierarchy among monopole operators with different quantum numbers at the quantum critical point (QCP) between a DSL and an antiferromagnet. | Session 144: Quantum Criticality Theory |
| 1930 | The Hall Effect and Dynamical Scaling about the Quantum Critical Point in Elemental Chromium | Armstrong, Stephen; Silevitch, Daniel; Rosenbaum, Thomas | The Hall Effect and Dynamical Scaling about the Quantum Critical Point in Elemental Chromium | Session 144: Quantum Criticality Theory |
| 1931 | Optical Conductivity of the Two Dimensional Anti-ferromagnetic Quantum Critical Metal | Singh, Ashutosh; Borissov, Anton; Lee, Sung-Sik | In this work, we compute the optical conductivity of the non-Fermi liquid state as a function of the nesting angle. | Session 144: Quantum Criticality Theory |
| 1932 | Quantum criticalities with lattice vibrations | Han, SangEun; Lee, Junhyun; Moon, Eun-Gook | Here, we demonstrate that such interplay between quantum criticality and lattice vibration leads to a new class of quantum many-particle phenomena. | Session 144: Quantum Criticality Theory |
| 1933 | Novel Criticality of Dirac Fermions from Lattice Symmetry Breaking | Kruger, Frank; Christou, Elliot; de Juan, Fernando | We consider the role of spontaneous lattice symmetry breaking in strongly interacting two dimensional Dirac systems. | Session 144: Quantum Criticality Theory |
| 1934 | Kardar-Parisi-Zhang universality from soft gauge modes | Bulchandani, Vir | We propose a "hydrodynamic Higgs mechanism" in isotropic integrable magnets, which generates soft gauge modes that are decoupled from the quasiparticle sector. | Session 144: Quantum Criticality Theory |
| 1935 | Stabilization of Crystalline Phase in Organo-metal Halide Perovskite Quantum Dots via Surface Manipulation | Delmas, William; Dibenedetto, Albert; Vickers, Evan; Zhang, Jin; Ghosh, Sayantani | In this study we use temperature dependent static and dynamic spectroscopy to investigate the effect of four different surface modification protocols on in CH 3NH 3PbBr 3 OMHP QDs using conductive aromatic ligands. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1936 | Advanced material system for the design of an intermediate band solar cell: type-II CdTe quantum dots in a ZnCdSe matrix | Deligiannakis, Vasilios; Ranepura, Gehan; Begliarbekov, Milan; Kuskovsky, Igor; Tamargo, Maria | We propose a material system of submonolayer CdTe QDs embedded a ZnCdSe matrix that is optimum for the formation of an ideal IB and has other advantages to materials previously considered. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1937 | Photo-induced current enhancement in core-shell type quantum dot FET | Shimizu, Sunao; Matsuki, Keiichiro; Miwa, Kazumoto; Braga, Daniele; ono, shimpei | Here we report the fabrication of CdSe/CdS core-shell QDs-based field effect transistors (FETs) and its application to photo FET operations under UV light irradiation. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1938 | Infrared Optical-Field-Driven Luminescence in Quantum Dots | Boulares, Ibrahim; Shi, Jiaojian; Connelly, Blair; Nelson, Keith | A recent study on CdSe-CdS core-shell colloidal quantum dots (QDs) showed that extreme electric fields from ultrafast THz-frequency electromagnetic pulses alone can produce QD luminescence [1, 2]. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1939 | Exciton Fine Structure in Lead Salt Quantum Dots | Goupalov, Serguei; Avdeev, Ivan; Nestoklon, Mikhail | We thoroughly investigate the relative importance of the inter-valley, spin-orbit, and electron-hole exchange couplings for the splittings and calculate the resulting exciton fine structure in the framework of the empirical tight-binding method. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1940 | Atomic and Electronic Structure of Epitaxial Necking in Quantum Dot Super Lattice | KAVRIK, Mahmut Sami; Ko, Wonhee; Hachtel, Jordan; Qian, Carolina; Abelson, Alex; Kashyap, Harshil; Ueda, Scott; Li, An-Ping; Idrobo, Juan; Law, Matt; Kummel, Andrew | In this work, the electronic structures of these systems are investigated with advanced metrology and the modulation of electronic band structure in QD epi-SL by the formation of epitaxial neck between the QDs were observed. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1941 | Advances in Colloidal Quantum Dot Superlattice Charge Transport | Travaglini, Henry | We report on novel superlattice fabrication techniques and characterization techniques, which show a dramatic increase of mobility without the use of electrochemical gating. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1942 | Zero field splitting of heavy-hole states in Ge quantum dots | Katsaros, Georgios; Kukucka, Josip; Vukusic, Lada; Watzinger, Hannes; Gao, Fei; Wang, Ting; Zhang, Jianjun; Held, Karsten | Zero field splitting of heavy-hole states in Ge quantum dots | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1943 | Thermoelectric transport properties of coupled quantum dots | Franco Pe?aloza, Roberto; Landazabal Rodriguez, John; Silva Valencia, Jereson; RAMOS, Edwin; Figueira, Marcos | We study thermoelectric properties of coupled quantum dots (QDs), employing the impurity Anderson model (IAM), taking into account strong, but finite electronic correlation in each QD, and a Green’s functions approximation with a many-body character [1,2]. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1944 | Entropy measurements in mesoscopic circuits: opportunities and limitations | Child, Tim; Sheekey, Owen; Hartman, Nikolaus; Lüscher, Silvia; Folk, Joshua; Fallahi, Saeed; Gardner, Geoffrey; Manfra, Michael | We demonstrate an entropy measurement for QDs throughout the range from weak to strong coupling to a reservoir. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1945 | Measured phase shift using quantum dot interferometer in Kondo regime | Zhang, Yujie; Sakano, Rui; Eto, Mikio | We report (i) the formulation of transport through the DQD in terms of Keldysh Green functions for three-terminal setup. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1946 | Evidence of quantum phase transition in double charge Kondo quantum dots | Pouse, Winston; Goldhaber-Gordon, David; Mitchell, Andrew; Zarand, Gergely; Moca, Catalin Pascu; Gennser, Ulf | Recent experimental work demonstrated a new way to realize this type of physics: the charge on a hybrid metal-semiconductor quantum dot coupled to a quantum hall edge state acts as a pseudospin [1]. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1947 | Majorana bound state in the continuum: Coupling between Majorana bound state and quantum dot mediated by continuum | Ramos Andrade, Juan; Orellana, Pedro; Vernek, Edson | In this work, we consider a single-level quantum dot (QD) and a Majorana bound state (MBS) placed at the end of a topological superconducting nanowire (TSW). | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1948 | Spherical topological-insulator nanoparticles: Quantum size effects and optical transitions | Yang, Lei; Christie, Max; Zuelicke, Ulrich; Governale, Michele; Sneyd, Alexander | We treat intra- and inter-band optical transitions on the same footing and establish ways for observing unusual quantum-size effects in TI nanoparticles. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1949 | Flexible manipulation of quantum dots by single-pulse optical vortices | Quinteiro, Guillermo; Tamborenea, Pablo; Holtkemper, M; Reiter, D.; Kuhn, T. | Here we show that a single-pulse of an OV with the right parameters –degree of focusing, polarization, orbital AM, etc– can precisely manipulate the electronic state of semiconductor quantum dots (QD) [1, 2]. | Session 145: Quantum Dots: Growth, Electronic, and Optical Properties |
| 1950 | Demonstration of JMRAM arrays | Miller, Donald; Dayton, Ian; Baker, Hana; Loving, Melissa; Ambrose, Thomas; Siwak, Nathan; Keebaugh, Shawn; Kirby, Christopher; Herr, Anna; Gingrich, Eric; Naaman, Ofer | Here, we present a demonstration of JMRAM from a single unit cell to 2×2 and 8×8 arrays. | Session 146: Superconducting Electronics and Cryogenic Memory |
| 1951 | Superconducting vortex-based memory cells | Golod, Taras; Morlet-Decarnin, Lise; Kapran, Olena; Pagliero, Alessandro; Iovan, Adrian; Krasnov, Vladimir | In this talk we will describe operation of memory cells, in which a single vortex is used as an information bit [1]. | Session 146: Superconducting Electronics and Cryogenic Memory |
| 1952 | Superconducting-nanowire-based memories | Berggren, Karl | I will describe these developments. | Session 146: Superconducting Electronics and Cryogenic Memory |
| 1953 | Controlling supercurrents and their spatial distribution in ferromagnets | Aarts, Jan; Lahabi, Kaveh; Fermin, Remko; Silaev, Mikhael | Here we discuss two types of experiments, both based on a disk-shaped ferromagnetic layer as supercurrent carrier. | Session 146: Superconducting Electronics and Cryogenic Memory |
| 1954 | Electromagnetic long ranged proximity effect in superconductor-ferromagnet structures | Buzdin, Alexandre | Contrary to the previously investigated inverse proximity effect resulting from the spin polarization of superconducting surface layer, we found a very generic orbital mechanism of the magnetic moment transfer from a ferromagnet to a superconductor, which is unavoidable in S/F hybrids. | Session 146: Superconducting Electronics and Cryogenic Memory |
| 1955 | Raman scattering from current-stabilized nonequilibrium phases in Ca2RuO4 | Fuersich, Katrin; Bertinshaw, Joel; Butler, Paul; Krautloher, Maximilian; Minola, Matteo; Keimer, Bernhard | We used Raman light scattering to study the current-stabilized nonequilibrium semimetallic and metallic phases in Ca 2RuO 4. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1956 | Octahedral tilt driven Kondo lattice behavior with orbital-selective Mott transition of 4d Ca2-xSrxRuO4 | Kim, Minsoo; Kwon, Junyoung; Chung, Daun; Kim, Younsik; Yoo, Hanyoung; Jung, Jongkeun; Kim, Beom Seo; Kim, Mi Kyung; Denlinger, Jonathan; Han, Moonsup; Mizokawa, Takashi; yoshida, yoshiyuki; Kyung, Wonshik; Kim, Changyoung | Using angle-resolved photoemission spectroscopy (ARPES), we observe the HF state in orbital-selective Mott phase (OSMP) of 4 d TMO, Ca 2-xSr xRuO 4. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1957 | electric control of the structural properties of spin-orbit coupled 4d ruthenate Ca2Ru0.97Mn0.03O4 | Ye, Feng; Hoffmann, Christina; Zhao, Hengdi; Cao, Gang | In this talk, we report neutron diffraction study of the quasi-two-dimensional Mott Ca 2Ru 0.97Mn 0.03O 4, which shows dramatic reduction of the electric resistivity, suppression of the antiferromagnetic transition, and induction of new orbital order with critical current density of 0.15 A/cm 2. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1958 | Metallic and non-metallic duality in the 4d pyrochlore Lu2Rh2O7 | Hallas, Alannah | In this talk, we introduce Lu 2Rh 2O 7, a new cubic pyrochlore oxide based on 4 d 5 Rh 4+ with properties that defy simple categorization. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1959 | Anomalous Hall effect from strained-induced magnetic multipoles in antiferromagnetic material | Song, Jeongkeun; Oh, Taekoo; Kim, Woojin | [3] Here, we establish the comprehensive connection between the large AHE in antiferromagnetic in-situ pyrochlore iridate Nd 2Ir 2O 7 thin film and strain-induced magnetic multipoles, T 1-octupole. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1960 | Approaching the quantum critical point in a highly-correlated all-in-all-out antiferromagnet | Feng, Yejun; Wang, Yishu; Prabhakaran, Dharmalingam; Boothroyd, Andrew; Rosenbaum, Thomas | We find that the magnetic order is suppressed at a critical pressure P c=6.30 GPa, while the lattice symmetry remains in the cubic Fd-3m space group across the quantum critical point. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1961 | Geometric Magnetic Frustration in Y2-xBixRu2O7 Pyrochlores across the Metal-Insulator transition | Dunsiger, Sarah; Cheong, Sang-Wook; Chow, Kim; Dehn, Martin; Gheidi, Shayan; Hur, Namjung; Kim, Kee; Luke, Graeme; Morris, Gerald; Munsie, Timothy; Sonier, Jeff; Sundar, Shyam | I will describe magnetization and muon spin relaxation investigations of a series of 4 d Ru4+ based pyrochlores, which may be controllably tuned through a metal insulator transition, providing insight into the magnetic correlations as these finely balanced systems evolve from a localized to itinerant spin character. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1962 | Electrically driven inhomogeneous phase transition in CuIr2S4 | Ali, Ahmed; Adhikari, Dasharath; Alsaqqa, Ali; Kilcoyne, Colin; MATSUMOTO, Nobuhiro; Ganapathy, Sambandamurthy | Electrically driven inhomogeneous phase transition in CuIr2S4 | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1963 | Local orbital degeneracy lifting as a precursor to an orbitalselective Peierls transition | Bozin, Emil; Yin, Weiguo; Koch, Robert; Abeykoon, Milinda; Hor, Yew San; Zheng, Hong; Lei, Hechang; Petrovic, Cedomir; Mitchell, John; Billinge, Simon J | Here we use a sensitive local structural technique, x-ray atomic pair distribution function analysis, to reveal the presence of fluctuating local-structural distortions at high temperature in one such compound, CuIr 2S 4. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1964 | The spin-orbit coupling driven spectral and magnetic properties of LiOsO3: A DFT+DMFT study | Adler, Severino; Springer, Daniel; Kim, Bongjae; Liu, Peitao; Hausoel, Andreas; Franchini, Cesare; Sangiovanni, Giorgio; Toschi, Alessandro | Therefore, we performed a paramagnetic, non SOC dependent DFT and a magnetic DMFT calculation, where we tuned the atomic SOC in the Os t 2g manifold. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1965 | Survived Jeff = 3/2 state under pressure and its implication for unconventional superconductivity in GaTa4Se8: LDA+DMFT study | Jeong, Min Yong; Sim, Jae-Hoon; Lee, Hyeong Jun; Go, Ara; Han, Myung Joon | In order to understand the nature of this intriguing metallic phase and its possible relation to superconductivity, we performed the LDA+DMFT (local density approximation + dynamical mean-field theory) calculations as a function of pressure and with spin-orbit coupling taken into account. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1966 | Magnetic impurity behavior in a gapless quantum spin liquid: single-layer 1T-TaSe2 | Chen, Yi; Ruan, Wei; Hwang, Jinwoong; Wu, Meng; Tang, Shujie; Ryu, Hyejin; Louie, Steven; Lee, Patrick; Shen, Zhixun; Mo, Sung-Kwan; Crommie, Michael | Here we present scanning tunneling microscopy studies of the behavior of magnetic adatoms deposited onto the quantum spin liquid candidate single-layer 1T-TaSe 2. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1967 | Spectroscopic signatures of Quasi One-Dimensional Crystallization at Domain Walls in the Mott Insulator TaS2 | Aishwarya, Anuva; Howard, Sean; Padhi, Bikash; Wang, Lihai; Cheong, Sang-Wook; Phillips, Philip; Madhavan, Vidya | In this work, we use scanning tunneling microscopy at 4K to study the Mott insulator, TaS 2. | Session 147: Metal-Insulator Transition in 4d/5d Systems |
| 1968 | Acoustic Phonon Fock States and Phonon-mediated Quantum Entanglement | Cleland, Andrew | I will describe our recent progress in coupling superconducting qubits to surface acoustic waves. | Session 148: Quantum Nanomechanics |
| 1969 | Quantum acoustics: creation and control of multi-phonon Fock states | Schoelkopf, Robert | In our approach, we combine a superconducting qubit with a piezoelectric transducer, which can couple to high quality factor bulk acoustic resonators [1]. | Session 148: Quantum Nanomechanics |
| 1970 | Nanotube Electro-Mechanical Resonators | Bachtold, Adrian | In this talk, I will discuss our efforts to cool the amplitude of the thermal vibrations to a few quanta [2]. | Session 148: Quantum Nanomechanics |
| 1971 | Ab initio finite-temperature and excited state computations by auxiliary-field quantum Monte Carlo | Zhang, Shiwei | I will discuss recent progress in generailizing the approach to non-zero temperatures. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1972 | Effects of charge self-consistency in DFT+DMFT calculations for complex transition metal oxides | Hampel, Alexander; Beck, Sophie; Ederer, Claude | Here, we examine the effect of CSC in DFT+DMFT calculations compared to simpler one-shot calculations for two instructive example materials, CaVO 3 and LuNiO 3, to clarify in which cases the more complex CSC treatment is necessary and in which cases the simpler one-shot calculation is sufficient. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1973 | DFT+eDMFT Study of Finite-temperature Properties of Filled Skutterudite CeGe4Pt12 | Quader, Khandker; Pascut, Gheorghe; Haule, Kristjan; Widom, Michael | Here we present results for CeGe 4Pt 12, namely the temperature dependence of spectral function, density of states, hybridization, effective mass, susceptibility, and resistivity, and compare with experiments. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1974 | Efficient implementation of ab initio dynamical mean-field theory for periodic systems | Zhu, Tianyu; Cui, Zhi-Hao; Chan, Garnet | We present an ab initio quantum chemical framework for dynamical mean-field theory (DMFT) in periodic systems. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1975 | Efficient Hybridization Fitting for Dynamical Mean-Field Theory via Semi-Definite Relaxation | Mejuto Zaera, Carlos; Zepeda-Núñez, Leonardo; Lindsey, Michael; Tubman, Norm; Whaley, Birgitta; Lin, Lin | In this work 1, we propose a nested optimization procedure using semi-definite relaxation which addresses and improves many of the issues that plague the optimization step in Hamiltonian-based DMFT. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1976 | Electronic Structure of Strongly Correlated f-electron System: DFT+DMFT Approach | Singh, Vijay; Herath, Uthpala; Wah, Benny; Romero, Aldo; Park, Hyowon | I use dynamical mean-field theory (DMFT) in combination with DFT to compute the electronic structure of strongly correlated f-electron systems, specifically, rare-earth metals. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1977 | Kondo route to quantum interference in prototypical single molecule transistors | Sen, Sudeshna; Mitchell, Andrew | In this talk I examine prototypical molecular junctions π-conjugated hydrocarbon molecular junctions using a combination of perturbative scaling, numerical renormalization group, and machine learning methods [1] after reducing them to effective multi-orbital impurity systems. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1978 | Density Matrix Embedding Theory: From Lattice Models to Realistic Materials | Cui, Zhi-Hao; Zhu, Tianyu; Chan, Garnet | In this work, we will discuss a unified formalsim for both lattice models and realistic solids. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1979 | Out of equilibrium thermometry with pump-probe x-ray photoemission spectroscopy | Matvyeyev, Oleh; Shvaika, Andrij; Freericks, James | We employ this effect in nonequilibrium, and describe an ultrafast "thermometer," which can determine the energy content of the conduction electrons with a nondestructive in situ measurement on an ultrafast time scale. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1980 | Electronic structure of bulk manganese oxide and nickel oxide from coupled cluster theory | Gao, Yang; Sun, Qiming; Yu, Jason; Motta, Mario; McClain, James; White, Alec; Minnich, Austin; Chan, Garnet | We describe the ground- and excited-state electronic structure of bulk MnO and NiO using coupled cluster theory with single and double excitations (CCSD). | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1981 | The electronic structure of n-doped ABO3 perovskite metals from quantum Monte Carlo. | Bennett, Michael; Hu, Guoxiang; Ganesh, Panchapakesan; Krogel, Jaron | Here, we hypothesize that these systems are indeed self-hole doped and use diffusion Monte Carlo methods that include electron correlations exactly to gain clarity on the electronic/magnetic/structural transitions. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1982 | ThetaPhi – a new program for calculation of Bardeen-Cooper-Schrieffer and Magnetic Superstructure Electronic States | Plekhanov, Evgeny; Tchougreeff, Andrei | We propose the Theta-Phi package [1] which addresses two of the most important extensions of the essentially single-particle mean-field paradigm of the computational solid state physics: the admission of the Bardeen-Cooper-Schrieffer electronic ground state and allowance of the magnetically ordered states with an arbitrary superstructure (pitch) wave vector. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1983 | A Multiorbital Quantum Impurity Solver for General Interactions and Hybridizations | Eidelstein, Eitan; Gull, Emanuel; Cohen, Guy | We present a numerically exact Inchworm Monte Carlo method for equilibrium multiorbital quantum impurity problems with general interactions and hybridizations. | Session 149: Precision Many-Body Physics: Ab Initio Methods |
| 1984 | Development of NbTiN constriction junctions and superconducting quantum interference devices | Miller, Andrew; Harris, Charles; Lewis, Rupert; Lu, Tzu-Ming | In this work, we investigate the properties of NbTiN SQUIDs created with a patterned constriction junction. | Session 150: Superconductivity: Devices and Applications |
| 1985 | Reducing 1/f flux noise in superconducting devices in situ with UV light. | O’Kelley, Sean; Martens, Matthew; Anton, Steven; Birenbaum, J; Kim, David; Yoder, Jonilyn; Hilton, Gene; Oliver, William; Clarke, John | Our work demonstrates a practical technique to reduce the flux noise of superconducting devices in situ. | Session 150: Superconductivity: Devices and Applications |
| 1986 | Integration of two-dimensional transition-metal dichalcogenide superconductors into superconducting circuits operated at DC and GHz frequencies | Sinko, Michael; Lanes, Olivia; de la Barrera, Sergio; Pekker, David; Hatridge, Michael; Hunt, Benjamin | We study the flux response and observe a Fraunhofer pattern with a frequency proportional to a large fraction of the area of the 2D superconductor. | Session 150: Superconductivity: Devices and Applications |
| 1987 | A quantum heat switch based on a single driven qubit | Elouard, Cyril; Thomas, George; Pekola, Jukka; Jordan, Andrew | Here we study the photonic heat transfer through a coherently driven qubit coupled to a hot and cold baths and show that such setup behaves as a quantum heat switch. | Session 150: Superconductivity: Devices and Applications |
| 1988 | Tunable photonic thermal rectification via superconducting qubit | Gubaydullin, Azat; Karimi, Bayan; Senior, Jorden; Chang, Yu-Cheng; Ronzani, Alberto; Peltonen, Joonas; Chen, ChiiDong; Ankerhold, Joachim; Pekola, Jukka | We will present our recent results of the flux-tunable photonic heat transport between thermal reservoirs coupled via a superconducting artificial atom. | Session 150: Superconductivity: Devices and Applications |
| 1989 | Multi-terminal superconducting quantum interference device | Lee, Hanho; Pankratova, Natalia; Kuzmin, Roman; Wickramasinghe, Kaushini; Vavilov, Maxim; Shabani, Javad; Manucharyan, Vladimir | We study multi-terminal superconducting quantum interference devices (SQUID) fabricated from a semiconductor/superconductor (InAs/Al) heterostructure. | Session 150: Superconductivity: Devices and Applications |
| 1990 | Synthesis of Quantum-Voltage Waveforms with Pulse-Driven High-Tc Josephson Junctions | Weis, Adam; Flowers-Jacobs, Nathan; Berkowitz, Stuart; Rogalla, Horst; Benz, Samuel | By driving these high- T c junctions with pulse codes clocked at microwave frequencies we have demonstrated synthesis of programmable quantum-based voltage waveforms in a miniaturized cryocooler system. | Session 150: Superconductivity: Devices and Applications |
| 1991 | Demonstration of a circuit-QED maser based on a nanowire Josephson junction | Uilhoorn, Willemijn; Cassidy, Maja; Kroll, James; De Jong, Damaz; Van Woerkom, David; Krogstrup, Peter; Kouwenhoven, Leo | Here we report on the quenching of the coherence above the 4th order harmonic. | Session 150: Superconductivity: Devices and Applications |
| 1992 | Epitaxial Josephson junctions for superconducting qubits made by wafer-bonding | McFadden, Anthony; McRae, Corey Rae; ZHAO, RUICHEN; Pappas, David; Palmstrom, Chris | In this work, a wafer-bonding technique is used to realize epitaxial JJ structures utilizing conventional semiconductors for the JJ dielectric. | Session 150: Superconductivity: Devices and Applications |
| 1993 | Confluence of complex surface impedance and critical current studies of model defects in niobium films near critical temperature | Garcia, Cougar; sirota, alex; Oripov, Bakhrom; Rizzo, Nicholas; Herr, Anna; Talanov, Vladimir; Anlage, Steven | In this work we combine both approaches to characterize thin 200 nm Nb films used in superconducting electronic circuits. | Session 150: Superconductivity: Devices and Applications |
| 1994 | 1/B resistance oscillations within the superconducting regime of heterostructure with disordered superconductor | Drachmann, Asbjorn; Banerjee, Abhishek; Fornieri, Antonio; Whiticar, Alexander; Thomas, Candice; Gronin, Sergei; Wang, Tiantian; Gardner, Geoff; Manfra, Michael; Marcus, Charles | [2] For B>B c, the sample resistance rises to >1 kΩ whereas for B<B c, we observe reproducible resistance oscillations of <30 Ω. | Session 150: Superconductivity: Devices and Applications |
| 1995 | Spectroscopy of barrier defects coupled to superconductors in Van der Waals tunneling devices | T R, Devidas; Dvir, Tom; Keren, Itai; Steinberg, Hadar | Superconductor-Quantum Dot (SC-QD) coupling is a subject of an intense research effort. | Session 150: Superconductivity: Devices and Applications |
| 1996 | Local measurement of temperature dependent London Penetration Depth in Superconductors using Nitrogen Vacancy Centers in Diamond | Joshi, Kamal; Setterberg, William; Nusran, Naufer; Ghimire, Sunil; Cho, Kyuil; Tanatar, Makariy; Bud’ko, Sergey; Canfield, Paul; Prozorov, Ruslan | Not only this study compares the absolute numbers from two different techniques, it also allows us to discuss a more realistic picture of the magnetic field penetration into superconducting samples. | Session 150: Superconductivity: Devices and Applications |
| 1997 | A propellant-free superconducting solenoid thruster driven by geomagnetic field | Kuo, Heng-Wei; Lee, Wei-Li; Pan, Kuo-Long | A propellant-free superconducting solenoid thruster driven by geomagnetic field | Session 150: Superconductivity: Devices and Applications |