44 citations · 280 across the 18 of their papers we have counts for
11 papers · 1 filter
Linear displacement current solely driven by the quantum metric
Longjun Xiang, Bin Wang, Yadong Wei +2
Quantum metric and Berry curvature are the real part and imaginary part of the quantum geometric tensor, respectively. The T-odd (T: time-reversal) nonlinear Hall effect driven by…
Realization of valley-spin polarized current via parametric pump in monolayer
Kai-Tong Wang, Hui Wang, Fuming Xu +2
Monolayer is a typical valleytronic material with valley-spin locked valence bands. We numerically investigate the valley-spin polarized current in monolayer vi…
Giant dynamical electron-magnon coupling in metal-metal-ferromagnetic insulator heterostructure
Gaoyang Li, Hao Jin, Yadong Wei +1
Magnon-mediated spin transport across nonmagnetic metal (NM) and ferromagnetic insulator (FI) interface depends critically on electron-magnon coupling. We propose a novel route to…
Transport features of topological corner states in honeycomb lattice with multihollow structure
Kai-Tong Wang, Fuming Xu, Bin Wang +2
Higher-order topological phase in 2-dimensional (2D) systems is characterized by in-gap corner states, which are hard to detect and utilize. We numerically investigate transport pr…
Electric field induced injection and shift currents in zigzag graphene nanoribbons
Yadong Wei, Weiqi Li, Yongyuan Jiang +1
We theoretically investigate the one-color injection currents and shift currents in zigzag graphene nanoribbons with applying a static electric field across the ribbon, which break…
Transport Induced Dimer State from Topological Corner States
Kai-Tong Wang, Yafei Ren, Fuming Xu +2
Recently, a new type of second-order topological insulator has been theoretically proposed by introducing an in-plane Zeeman field into the Kane-Mele model in the two-dimensional h…
Photoinduced valley-polarized current of layered MoS2 by electric tuning
Yunjin Yu, Yanfeng Zhou, Langhui Wan +4
A photoinduced current of a layered MoS2-based transistor is studied from first-principles. Under the illumination of circular polarized light, a valley-polarized current is genera…
Transmission spectra and valley processing of graphene and carbon nanotube superlattices with inter-valley coupling
Fuming Xu, Zhizhou Yu, Yafei Ren +3
We numerically investigate the electronic transport properties of graphene nanoribbons and carbon nanotubes with inter-valley coupling, e.g., in \sqrt{3}N \times \sqrt{3}N and 3N \…
Shot noise of spin current and spin transfer torque
Yunjin Yu, Hongxin Zhan, Langhui Wan +4
We report the theoretical investigation of noise spectrum of spin current and spin transfer torque for non-colinear spin polarized transport in a spin-valve device which consists o…
Electron transport through Al-ZnO-Al: an {\it ab initio} calculation
Zijiang Yang, Langhui Wan, Yunjin Yu +2
The electron transport properties of ZnO nano-wires coupled by two aluminium electrodes were studied by {\it ab initio} method based on non-equilibrium Green's function approach an…
Universal quantized spin-Hall conductance fluctuation in graphene
Z. H. Qiao, J. Wang, Y. D. Wei +1
We report a theoretical investigation of quantized spin-Hall conductance fluctuation of graphene devices in the diffusive regime. Two graphene models that exhibit quantized spin-Ha…