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137 papers
A Chiral Superlattice Route to Spin-Split Topological Antiferromagnetism
Thao Dinh, Mengke Liu, Jian-Xiang Qiu +48
The interplay between chirality and magnetism is a profound topic, spanning particle physics, condensed matter, chemistry and origin of life. In this paper, we study this interplay…
Scaling universal Fermi network toward ground states: A diffusion-Monte-Carlo assessment
Yu-Sheng Li, Saskia Poldmaa, Tzen Ong +4
In this work, we show that Fermi Sets---a provably universal neural network architecture for fermionic wavefunctions---can be systematically scaled up to find interacting ground st…
Emergent Quantum-Geometric Equivalence of Injection and Shift Currents
Mohammad Yahyavi, Tay-Rong Chang, Md Shafayat Hossain +3
Injection and shift currents are generally regarded as distinct nonlinear optical responses with separate microscopic origins. Here, we uncover a general hidden connection between…
Altermagnetism, Kagome Flat Band, and Weyl Fermion States in Magnetically Intercalated Transition Metal Dichalcogenides
Avinash Sah, Ting-Yong Lim, Clayton Conner +5
Altermagnetic (AM) compounds have recently emerged as a promising platform for realizing unconventional quantum phases, enabled by their unique spin-split band structure at zero ne…
Wavefunction-Free Approach for Predicting Nonlinear Responses in Weyl Semimetals
Mohammad Yahyavi, Ilya Belopolski, Yuanjun Jin +15
By sidestepping the intractable calculations of many-body wavefunctions, density functional theory (DFT) has revolutionized the prediction of ground states of materials. However, p…
Observation of the Axion quasiparticle in 2D MnBiTe
Jian-Xiang Qiu, Barun Ghosh, Jan Schütte-Engel +32
In 1978, Wilczek and Weinberg theoretically discovered a new boson-the Axion-which is the coherent oscillation of the field in QCD. Its existence can solve multiple fundamental…
Giant Self Spin-Valve Effect in the Kagome Helimagnet
Xitong Xu, Yonglai Liu, Kesen Zhao +12
Kagome magnets can combine non-trivial band topology and electron correlations, offering a versatile playground for various quantum phenomena. In this work we propose that kagome m…
Topological Nature of Orbital Chern Insulators
Yueh-Ting Yao, Chia-Hung Chu, Arun Bansil +2
Ground state topologies in quantum materials have unveiled many unique topological phases with novel Hall responses. Recently, the orbital Hall effect in insulators has suggested t…
Quantum metric non-linear Hall effect in an antiferromagnetic topological insulator thin-film EuSn2As2
Hung-Ju Tien, Hsin Lin, Liang Fu +1
The quantum geometric structure of electrons introduces fundamental insights into understanding quantum effects in materials. One notable manifestation is the non-linear Hall effec…
Tunable superconductivity coexisting with the anomalous Hall effect in 1T'-WS2
Md Shafayat Hossain, Qi Zhang, David Graf +25
Transition metal dichalcogenides are a family of quasi-two-dimensional materials that display a high technological potential due to their wide range of electronic ground states, e.…
Moving Protocol of Majorana Corner Modes in a Superconducting 2D Weyl Semimetal Heterostructure
Ching-Kai Chiu, Yueh-Ting Yao, Tay-Rong Chang +1
Second-order topological superconductors host Majorana corner modes (MCMs), which are confined to specific corners of the system. This spatial restriction presents challenges for m…
A topological Hund nodal line antiferromagnet
Xian P. Yang, Yueh-Ting Yao, Pengyu Zheng +21
The interplay of topology, magnetism, and correlations gives rise to intriguing phases of matter. In this study, through state-of-the-art angle-resolved photoemission spectroscopy,…
An antiferromagnetic diode effect in even-layered MnBi2Te4
Anyuan Gao, Shao-Wen Chen, Barun Ghosh +26
In a PN junction, the separation between positive and negative charges leads to diode transport. In the past few years, the intrinsic diode transport in noncentrosymmetric polar co…
Direct Visualization of a Disorder Driven Electronic Smectic Phase in Nonsymmorphic Square-Net Semimetal GdSbTe
Balaji Venkatesan, Syu-You Guan, Jen-Te Chang +14
Electronic liquid crystal (ELC) phases are spontaneous symmetry breaking states believed to arise from strong electron correlation in quantum materials such as cuprates and iron pn…
Atomic Scale Quantum Anomalous Hall Effect in Monolayer Graphene/ Heterostructure
Yueh-Ting Yao, Suyang Xu, Tay-Rong Chang
The two-dimensional quantum anomalous Hall (QAH) effect is direct evidence of non-trivial Berry curvature topology in condensed matter physics. Searching for QAH in 2D materials, p…
Feature-energy duality of topological boundary states in multilayer quantum spin Hall insulator
Yueh-Ting Yao, Xiaoting Zhou, Yi-Chun Hung +3
Gapless topological boundary states characterize nontrivial topological phases arising from the bulk-boundary correspondence in symmetry-protected topological materials, such as th…
Tunable High Spin Chern-Number Insulator Phases in Strained Sb Monolayer
Jacob Cook, Po-Yuan Yang, Theo Volz +8
High spin Chern-number insulators (HSCI) have emerged as a novel 2D topological phase of condensed matter that is beyond the classification of topological quantum chemistry. In thi…
Unconventional superconducting pairing in a B20 Kramers Weyl semimetal
Sougata Mardanya, Mehdi Kargarian, Rahul Verma +6
Topological superconductors present an ideal platform for exploring nontrivial superconductivity and realizing Majorana boundary modes in materials. However, finding a single-phase…
Quantum metric nonlinear Hall effect in a topological antiferromagnetic heterostructure
Anyuan Gao, Yu-Fei Liu, Jian-Xiang Qiu +28
Quantum geometry - the geometry of electron Bloch wavefunctions - is central to modern condensed matter physics. Due to the quantum nature, quantum geometry has two parts, the real…
Doubling of the superconducting transition temperature in ultra-clean wafer-scale aluminum nanofilms
Ching-Chen Yeh, Thi-Hien Do, Pin-Chi Liao +12
Superconducting properties of thin films can be vastly different from those of bulk materials. Seminal work has shown the critical temperature Tc of elemental superconductors decre…
Quantized Hall current in topological nodal-line semimetal
Po-Hsin Shih, Thi-Nga Do, Godfrey Gumbs +3
Photocurrent acts as one of measurable responses of material to light, which has proved itself to be crucial for sensing and energy harvesting. Topological semimetals with gapless…
Axion optical induction of antiferromagnetic order
Jian-Xiang Qiu, Christian Tzschaschel, Junyeong Ahn +25
Using circularly-polarized light to control quantum matter is a highly intriguing topic in physics, chemistry and biology. Previous studies have demonstrated helicity-dependent opt…
Observation of 2D Weyl Fermion States in Epitaxial Bismuthene
Qiangsheng Lu, P. V. Sreenivasa Reddy, Hoyeon Jeon +20
A two-dimensional (2D) Weyl semimetal featuring a spin-polarized linear band dispersion and a nodal Fermi surface is a new topological phase of matter. It is a solid-state realizat…
Anomalously high supercurrent density in a two-dimensional topological material
Qi Zhang, Md Shafayat Hossain, Brian Casas +24
Ongoing advances in superconductors continue to revolutionize technology thanks to the increasingly versatile and robust availability of lossless supercurrent. In particular high s…