37 citations · 204 across the 18 of their papers we have counts for
18 papers
Giant enhancement of anomalous Hall effect in Cr modulation-doped non-collinear antiferromagnetic Mn3Sn thin films
Xin Chen, Hang Xie, Qi Zhang +3
We report on Cr doping effect in Mn3Sn polycrystalline films with both uniform and modulation doping. It is found that Cr doping with low concentration does not cause notable chang…
Spin torque gate magnetic field sensor
Hang Xie, Xin Chen, Ziyan Luo +1
Spin-orbit torque provides an efficient pathway to manipulate the magnetic state and magnetization dynamics of magnetic materials, which is crucial for energy-efficient operation o…
Coexistence of Ferromagnetism and Topology by Charge Carrier Engineering in intrinsic magnetic topological insulator MnBi4Te7
Bo Chen, Fucong Fei, Dinghui Wang +11
Intrinsic magnetic topological insulators (MTIs) MnBi2Te4 and MnBi2Te4/(Bi2Te3)n are expected to realize the high-temperature quantum anomalous Hall effect (QAHE) and dissipationle…
Mechanical dissipation below 1Hz with a cryogenic diamagnetic-levitated micro-oscillator
Yingchun Leng, Rui Li, Xi Kong +10
Ultralow dissipation plays an important role in sensing applications and exploring macroscopic quantum phenomena using micro-and nano-mechanical systems. We report a diamagnetic-le…
Large Magnetoresistance in Topological Insulator Candidate TaSe3
Yong Zhang, Tongshuai Zhu, Haijun Bu +11
Large unsaturated magnetoresistance (XMR) with magnitude about 1000% is observed in topological insulator candidate TaSe3 from our high field (up to 38 T) measurements. Two oscilla…
Spin Hall magnetoresistance sensor using AuPt as the spin-orbit torque biasing layer
Yanjun Xu, Yumeng Yang, Hang Xie +1
We report on investigation of spin Hall magnetoresistance sensor based on NiFe/AuxPt1-x bilayers. Compared to NiFe/Pt, the NiFe/AuxPt1-x sensor exhibits a much lower power consumpt…
In-situ study of oxygen exposure effect on spin-orbit torque in Pt/Co bilayers in ultrahigh vacuum
Hang Xie, Jiaren Yuan, Ziyan Luo +2
Oxygen incorporation has been reported to increase the current-induced spin-orbit torque in ferromagnetic heterostructures, but the underlying mechanism is still under active debat…
Steady and dynamic magnetic phase transitions in interacting quantum dots arrays coupled with leads
Hang Xie, Xiao Cheng, Xiaolong Lv
We apply the Hubbard model, non-equilibrium Green's function (NEGF) theory, exact diagonalization (ED) and the hierarchical equations of motion (HEOM) method to investigate abundan…
Topological and magnetic phase transition in silicene-like zigzag nanoribbons
Xiao Long Lv, Yang Xie, Hang Xie
Spin-orbital interactions (SOI) in silicene results in the quantum spin Hall effect, while the Hubbard-induced Coulomb interaction in zigzag nanoribbons often generates a band gap…
Charge Separation and Dissipation in Molecular Wires under a Light Radiation
Hang Xie, Yu Zhang, Yanho Kwok +1
Photo-induced charge separation in nanowires or molecular wires had been studied in previous experiments and simulations. Most researches deal with the carrier diffusions with the…
Semitransparent anisotropic and spin Hall magnetoresistance sensor enabled by spin-orbit toque biasing
Yumeng Yang, Yanjun Xu, Hang Xie +2
We demonstrate an ultrathin and semitransparent anisotropic and spin Hall magnetoresistance sensor based on NiFe/Pt heterostructure. The use of spin-orbit torque effective field fo…
The band calculation and local state analysis for armchair graphene-like nanoribbons with line defects
Yang Xie, Zhijian Hu, Wenhao Ding +1
In this paper we propose an analytical method to calculate the band structures of graphene-like nanoribbons of the armchair type with arbitrary line defects or uniaxial strains. Th…
Possible excited spin density wave states in zigzag graphene nanoribbons
Hang Xie, Jinhua Gao, Dezhuan Han
We theoretically examine the possible spin ordered states in zigzag graphene nanoribbon in a large supercell by the self-consistent mean field method as well as the first principle…
Numerical methods for spin-dependent transport calculations and spin bound states analysis in Rashba waveguides
Hang Xie, Feng Jiang, Wei E. I. Sha
Numerical methods are developed in the quantum transport calculations for electron in the waveguides with spin-orbital (Rashba) interaction. The methods are based on a hybrid mode-…
Complex absorbing potential based Lorentzian fitting scheme and time dependent quantum transport
Hang Xie, Yanho Kwok, Feng Jiang +2
Based on the complex absorbing potential (CAP) method, a Lorentzian expansion scheme is developed to express the self-energy. The CAP-based Lorentzian expansion of self-energy is e…
Inelastic transport dynamics through attractive impurity in charge Kondo regime
Feng Jiang, Shikuan Wang, Hang Xie +2
Within the frame of quantum dissipation theory, we develop a new hierarchical equations of motion theory, combined with the small polaron transformation. We fully investigate the e…
Time Dependent Quantum Transport Through Graphene Nanoribbons
Hang Xie, Yanho Kwok, Yu Zhang +4
Time-dependent quantum transport for graphene nanoribbons (GNR) are calculated by the hierarchical equation of motion (HEOM) method based on the nonequilibrium Green's function (NE…
1D goes 2D: A Kosterlitz Thouless transition in superconducting arrays of 4-Angstrom carbon nanotubes
Zhe Wang, Wu Shi, Hang Xie +6
We report superconducting resistive transition characteristics for array(s) of coupled 4-Angstrom single wall carbon nanotubes embedded in aluminophosphate-five (AFI) zeolite. The…