149 citations · 995 across the 25 of their papers we have counts for
26 papers
Unconventional Josephson effects in {\it PT}-symmetric antiferromagnetic bilayers
Jin-Xin Hu, Mengli Hu, Ying-Ming Xie +1
We propose that unconventional Josephson effects can typically emerge in {\it PT}-symmetric antiferromagnetic (AFM) bilayer systems. When proximitized by a conventional superconduc…
Layer Pseudospin Superconductivity in Twisted MoTe
Jin-Xin Hu, Akito Daido, Zi-Ting Sun +2
Recent experiments have observed signatures of spin-valley-polarized unconventional superconductivity in twisted bilayer MoTe (tMoTe). Here, we explore the rich physics of…
Topological altermagnetic Josephson junctions
Grant Z. X. Yang, Zi-Ting Sun, Ying-Ming Xie +1
Planar Josephson junctions are pivotal for engineering topological superconductivity, yet are severely hindered by orbital effects induced by in-plane magnetic fields. In this work…
Pseudo-Ising superconductivity induced by -wave magnetism
Zi-Ting Sun, Xilin Feng, Ying-Ming Xie +3
Unconventional magnetic orders usually interplay with superconductivity in intriguing ways. Here we propose that a conventional superconductor in proximity to a compensated -wav…
Anomalous periodicity and Majorana zero modes in chiral Josephson junctions
Zi-Ting Sun, Jin-Xin Hu, Ying-Ming Xie +1
Recent experiments reported that quantum Hall chiral edge state-mediated Josephson junctions (chiral Josephson junctions) could exhibit Fraunhofer oscillations with a periodicity o…
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…
Gate-Defined Topological Josephson Junctions in Bernal Bilayer Graphene
Ying-Ming Xie, Étienne Lantagne-Hurtubise, Andrea F. Young +2
Recent experiments on Bernal bilayer graphene (BLG) deposited on monolayer WSe revealed robust, ultra-clean superconductivity coexisting with sizable induced spin-orbit couplin…
Proximity-induced quasi-one-dimensional superconducting quantum anomalous Hall state: a promising scalable top-down approach towards localized Majorana modes
Omargeldi Atanov, Wai Ting Tai, Ying-Ming Xie +14
In this work, ~100 nm wide quantum anomalous Hall insulator (QAHI) nanoribbons are etched from a two-dimensional QAHI film. One part of the nanoribbon is covered with superconducti…
Josephson Diode Effect Induced by Valley Polarization in Twisted Bilayer Graphene
Jin-Xin Hu, Zi-Ting Sun, Ying-Ming Xie +1
Recently, the Josephson diode effect (JDE), in which the superconducting critical current magnitudes differ when the currents flow in opposite directions, has attracted great inter…
Orbital Fulde-Ferrell pairing state in moiré Ising superconductors
Ying-Ming Xie, K. T. Law
In this work, we study superconducting moiré homobilayer transition metal dichalcogenides where the Ising spin-orbit coupling (SOC) is much larger than the moiré bandwidth. We call…
Berry curvature, spin Hall effect and nonlinear optical response in moiré transition metal dichalcogenide heterobilayers
Jin-Xin Hu, Ying-Ming Xie, K. T. Law
Recently, the topological flat bands and spin Hall effect have been experimentally observed in the AB-stacked MoTe/WSe heterostructures. In this work, we systematically stu…
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…
-Josephson junction in twisted bilayer graphene induced by a valley-polarized state
Ying-Ming Xie, Dmitri K. Efetov, K. T. Law
Recently, gate-defined Josephson junctions in magic angle twisted bilayer graphene (MATBG) were studied experimentally and highly unconventional Fraunhofer patterns were observed.…
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…
Creating Localized Majorana Zero Modes in Quantum Anomalous Hall Insulator/Superconductor Heterostructures with a Scissor
Ying-Ming Xie, Xue-Jian Gao, Tai-Kai Ng +1
In this work, we demonstrate that making a cut (a narrow vacuum regime) in the bulk of a quantum anomalous Hall insulator (QAHI) creates a topologically protected single helical ch…
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…
Spin-orbit-parity coupled superconductivity in topological monolayer WTe
Ying-Ming Xie, Benjamin T. Zhou, K. T. Law
Recent experiments reported gate-induced superconductivity in the monolayer 1T-WTe which is a two-dimensional topological insulator in its normal state [1, 2]. The in-plane…
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…
Topological superconductivity in EuS/Au/superconductor heterostructures
Ying-Ming Xie, K. T. Law, Patrick A. Lee
In a recent work, signatures of a pair of Majorana bound states (MBS) were found in a new experimental platform formed by EuS islands deposited on top of a gold surface which was m…
Signature of a pair of Majorana zero modes in superconducting gold surface states
Sujit Manna, Peng Wei, Yingming Xie +3
Under certain conditions, a fermion in a superconductor can separate in space into two parts known as Majorana zero modes, which are immune to decoherence from local noise sources…
Evidence of Higher Order Topology in Multilayer WTe from Josephson Coupling through Anisotropic Hinge States
Yong-Bin Choi, Yingming Xie, Chui-Zhen Chen +12
The noncentrosymmetric Td-WTe, previously known as a type-II Weyl semimetal, is expected to have higher order topological phases with topologically protected, helical one-dimen…
Strongly enlarged topological regime and enhanced superconducting gap in nanowires coupled to Ising superconductors
Ying-Ming Xie, Benjamin T. Zhou, T. K. Ng +1
An external magnetic field is needed to drive a nanowire in proximity to an s-wave superconductor into a topological regime which supports Majorana end states. However, a magnetic…