261 citations · 1.5k across the 24 of their papers we have counts for
22 papers
Half-integer Shapiro Steps in Strong Ferromagnetic Josephson Junctions
Yunyan Yao, Ranran Cai, See-Hun Yang +7
We report the experimental observation of half-integer Shapiro steps in the strong ferromagnetic Josephson junction (Nb-NiFe-Nb) by investigating the current-phase relation under r…
Quantum oscillation beyond the quantum limit in pseudospin Dirac materials
C. M. Wang, Hai-Zhou Lu, X. C. Xie
Recently, many unexpected fine structures in electric, magnetic, and thermoelectric responses at extremely magnetic fields in topological materials have attracted tremendous intere…
Quantum theory of the nonlinear Hall effect
Z. Z. Du, C. M. Wang, Hai-Peng Sun +2
The nonlinear Hall effect is an unconventional response, in which a voltage can be driven by two perpendicular currents in the Hall-bar measurement. Unprecedented in the family of…
3D Quantum Hall Effect Manipulated by Chiral Landau Levels in Weyl Semimetals
Hailong Li, Haiwen Liu, Hua Jiang +1
We investigate the 3D quantum Hall effect in Weyl semimetals and elucidate a global picture of the edge states. The edge states hosting 3D quantum Hall effect are combinations of F…
Moiré Flat Bands of Twisted Few-layer Graphite
Zhen Ma, Shuai Li, Meng-Meng Xiao +5
We report that the twisted few layer graphite (tFL-graphite) is a new family of moiré heterostructures (MHSs), which has richer and highly tunable moiré flat band structures entire…
Hydrogen-induced magnetism in graphene: a simple effective model description
Shuai Li, Rui Yu, Jin-Hua Gao +1
Hydrogen adatoms induced magnetic moment on graphene has been observed in atomic scale in a recent experiment [Gonzalez-Herrero et al., Science 352, 437 (2016)]. Here, we demonstra…
Quantized thermal Hall conductance from edge current calculations in lattice models
Wei Tang, X. C. Xie, Lei Wang +1
The quantized thermal Hall effect is an important probe for detecting chiral topological order and revealing the nature of chiral gapless edge states. The standard Kubo formula app…
Numerical study of the negative nonlocal resistance and the backflow current in a ballistic graphene system
Zibo Wang, Haiwen Liu, Hua Jiang +1
Besides the giant peak of the nonlocal resistance , an anomalous negative value of has been observed in graphene systems, while its formation mechanism is not quit…
Emergent Topological Invariant and Robust Helical Edge States in Two-Dimensional Topological Metals
Chui-Zhen Chen, Hua Jiang, Dong-Hui Xu +1
In this work, we study the disorder effect on topological metals that support a pair of helical edge modes deeply embedded inside the gapless bulk states. Strikingly, we predict th…
Flat band localization due to self-trapped orbital
Zhen Ma, Wei-Jin Chen, Yuntian Chen +2
We discover a new wave localization mechanism in a periodic system without any disorder, which can produce a novel type of perfect flat band and is distinct from the known localiza…
Band signatures for strong nonlinear Hall effect in bilayer WTe
Z. Z. Du, C. M. Wang, Hai-Zhou Lu +1
Unconventional responses upon breaking discrete or crystal symmetries open avenues for exploring emergent physical systems and materials. By breaking inversion symmetry, a nonlinea…
Disorder-induced nonlinear Hall effect with time-reversal symmetry
Z. Z. Du, C. M. Wang, Shuai Li +2
The nonlinear Hall effect has opened the door towards deeper understanding of topological states of matter. It can be observed as the double-frequency Hall voltage response to an a…
Decays of Majorana or Andreev oscillations induced by steplike spin-orbit coupling
Zhan Cao, Hao Zhang, Hai-Feng Lü +3
The Majorana zero mode in the semiconductor-superconductor nanowire is one of the promising candidates for topological quantum computing. Recently, in islands of nanowires, subgap-…
Ultraquantum magnetoresistance in Kramers Weyl semimetal candidate -Ag2Se
Cheng-Long Zhang, Frank Schindler, Haiwen Liu +14
The topological semimetal -Ag2Se features a Kramers Weyl node at the origin in momentum space and a quadruplet of spinless Weyl nodes, which are annihilated by spin-orbit coupli…
Probe of Spin Dynamics in Superconducting NbN Thin Films via Spin Pumping
Yunyan Yao, Qi Song, Yota Takamura +7
The emerging field of superconductor (SC) spintronics has attracted intensive attentions recently. Many fantastic spin dependent properties in SC have been discovered, including th…
Global Phase Diagram of Disordered Type-II Weyl Semimetals
Yijia Wu, Haiwen Liu, Hua Jiang +1
With electron and hole pockets touching at the Weyl node, type-II Weyl semimetal is a newly proposed topological state distinct from its type-I cousin. We numerically study the loc…
Higgs amplitude mode in massless Dirac fermion systems
Ming Lu, Haiwen Liu, Pei Wang +1
The Higgs amplitude mode in superconductors is the condensed matter analogy of Higgs bosons in particle physics. We investigate the time evolution of Higgs amplitude mode in massle…
The Chiral Anomaly and Ultrahigh Mobility in Crystalline HfTe5
Huichao Wang, Chao-Kai Li, Haiwen Liu +11
HfTe5 is predicted to be a promising platform for studying topological phases. Here through an electrical transport study, we present the first observation of chiral anomaly and ul…
Positive Magneto-conductivity of Weyl Semimetals in the Ultra-quantum Limit
Chui-Zhen Chen, Haiwen Liu, Hua Jiang +1
In this paper, we numerically study the magnetic transport properties of disordered Weyl semimetals (WSM) in the ultra-quantum limit. We find a positive magnetic conductivity for t…
Magnetic tunneling induced Weyl node annihilation in TaP
Cheng-Long Zhang, Su-Yang Xu, C. M. Wang +20
Weyl nodes are topological objects in three-dimensional metals. Their topological property can be revealed by studying the high-field transport properties of a Weyl semimetal. Whil…
Floquet Majorana fermions in driven hexagonal lattice systems
Zi-bo Wang, Hua Jiang, Haiwen Liu +1
We propose Floquet chiral topological superconducting systems hosting Floquet Majorana fermions, which consist of hexagonal lattices in proximity to superconductors with shining ci…
The Coexistence and Decoupling of Bulk and Edge States in Disordered Two-dimensional Topological Insulators
Yan-Yang Zhang, Man Shen, Xing-Tao An +4
We investigate the scattering and localization properties of edge and bulk states in a disordered two-dimensional topological insulator when they coexist at the same fermi energy.…