98 citations · 495 across the 10 of their papers we have counts for
10 papers
Nonlinear optical diode effect in a magnetic Weyl semimetal
Christian Tzschaschel, Jian-Xiang Qiu, Xue-Jian Gao +18
Diode effects are of great interest for both fundamental physics and modern technologies. Electrical diode effects (nonreciprocal transport) have been observed in Weyl systems. Opt…
Quantum geometry quadrupole-induced third-order nonlinear transport in antiferromagnetic topological insulator MnBi2Te4
Hui Li, Chengping Zhang, Chengjie Zhou +7
The study of quantum geometry effects in materials has been one of the most important research directions in recent decades. The quantum geometry of a material is characterized by…
Experimental evidence for Berry curvature multipoles in antiferromagnets
Soumya Sankar, Ruizi Liu, Xue-Jian Gao +12
Berry curvature multipoles appearing in topological quantum materials have recently attracted much attention. Their presence can manifest in novel phenomena, such as nonlinear anom…
Topological inter-valley coherent state in Moiré MoTe/WSe heterobilayers
Ying-Ming Xie, Cheng-Ping Zhang, K. T. Law
Recently, a quantum anomalous Hall (QAH) state was observed in AB stacked moiré MoTe/WSe heterobilayers at half-filling. More recent layer-resolved magnetic circular dichro…
Valley-Polarized Quantum Anomalous Hall State in Moiré MoTe/WSe Heterobilayers
Ying-Ming Xie, Cheng-Ping Zhang, Jin-Xin Hu +2
Moiré heterobilayer transition metal dichalcogenides (TMDs) emerge as an ideal system for simulating the single-band Hubbard model and interesting correlated phases have been obser…
Higher-Order Nonlinear Anomalous Hall Effects Induced by Berry Curvature Multipoles
Cheng-Ping Zhang, Xue-Jian Gao, Ying-Ming Xie +2
In recent years, it has been shown that Berry curvature monopoles and dipoles play essential roles in the anomalous Hall effect and the nonlinear Hall effect respectively. In this…
Giant nonlinear Hall effect in strained twisted bilayer graphene
Cheng-Ping Zhang, Jiewen Xiao, Benjamin T. Zhou +4
Recent studies have shown that moiré flat bands in a twisted bilayer graphene(TBG) can acquire nontrivial Berry curvatures when aligned with hexagonal boron nitride substrate [1, 2…
Kramers Nodal Line Metals
Ying-Ming Xie, Xue-Jian Gao, Xiao Yan Xu +4
Recently, it was pointed out that all chiral crystals with spin-orbit coupling (SOC) can be Kramers Weyl semimetals (KWSs) which possess Weyl points pinned at time-reversal invaria…
Nonlinear Hall Effects in Strained Twisted Bilayer WSe
Jin-Xin Hu, Cheng-Ping Zhang, Ying-Ming Xie +1
Recently, it has been pointed out that the twisting of bilayer WSe would generate topologically non-trivial flat bands near the Fermi energy. In this work, we show that twisted…
Highly tunable nonlinear Hall effects induced by spin-orbit couplings in strained polar transition-metal dichalcogenides
Benjamin T. Zhou, Cheng-Ping Zhang, K. T. Law
Recently, signatures of nonlinear Hall effects induced by Berry-curvature dipoles have been found in atomically thin 1T'/Td-WTe. In this work, we show that in strained polar tr…