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相关论文: Influences of Topological Defect on Spin Hall Effe…

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We study the spin currents induced by topological screw dislocation and cosmic dispiration. By using the extended Drude model, we find that the spin dependent forces are modified by the nontrivial geometry. For the topological screw…

介观与纳米尺度物理 · 物理学 2015-11-27 Jian-hua Wang , Kai Ma , Kang Li , Hua-wei Fan

We study the charged and spin currents on a coordinate dependent noncommutative space. Starting from the noncommutative extended relativistic equation of motion, the non-relativistic approximation is obtained by using the Foldy-Wouthuysen…

综合物理 · 物理学 2018-05-30 Ya-Jie Ren , Kai Ma

Using the non-equilibrium Keldysh Green's function formalism, we investigate the effect of defects on the electronic structure and transport properties of two-dimensional topological insulators (TI). We demonstrate how the spatial flow of…

介观与纳米尺度物理 · 物理学 2017-02-08 John S. Van Dyke , Dirk K. Morr

In the present paper, we have investigated the role of cosmic string on spin current and Hall electric field. Due to the background cosmic string, the modified electric field of the system generates renormalized spin orbit coupling, which…

介观与纳米尺度物理 · 物理学 2015-06-23 Debashree Chowdhury , B. Basu

Influences of topological defect and dislocation on conductivity behavior of charge carries in external electromagnetic fields are studied. Particularly the quantum Hall effect is investigated in detail. It is found that the nontrivial…

介观与纳米尺度物理 · 物理学 2016-11-03 Kai Ma , Jian-Hua Wang , Huan-Xiong Yang , Hua-Wei Fan

The spin-Hall effect underpins some of the most active topics in modern physics, including spin torques and the inverse spin-Hall effect, yet it lacks a proper theoretical description. This makes it difficult to differentiate the SHE from…

介观与纳米尺度物理 · 物理学 2025-01-30 Hongyang Ma , James H. Cullen , Serajum Monir , Rajib Rahman , Dimitrie Culcer

We study the dependence of the intrinsic spin Hall effect on the crystal symmetry and geometry of experiment. The spin current is obtained and the Hall voltage caused by the polarization of the electron spins is computed. The unique…

介观与纳米尺度物理 · 物理学 2009-11-03 E. M. Chudnovsky

The substantial amount of recent research into spin torques has been accompanied by a revival of interest in the spin-Hall effect. This effect contributes to the spin torque in many materials, including topological insulator/ferromagnet…

介观与纳米尺度物理 · 物理学 2024-04-24 James H. Cullen , Dimitrie Culcer

We derive the spin continuity equation by using the Noether's theorem. A new type of spin-tensor Hall current is found in the continuity equation. The spin-tensor Hall current is originating from the coupling of the spin-tensor and the…

介观与纳米尺度物理 · 物理学 2020-02-04 Yong-Ping Fu , Fei-Jie Huang , QI-Hui Chen

We carry out a throughout study of the topological Hall and topological spin Hall effects in disordered skyrmionic systems: the dimensionless (spin) Hall angles are evaluated across the energy band structure in the multiprobe…

介观与纳米尺度物理 · 物理学 2017-03-01 P. B. N'diaye , C. A. Akosa , A. Manchon

We investigate the spin Hall effect in ballistic chaotic quantum dots with spin-orbit coupling. We show that a longitudinal charge current can generate a pure transverse spin current. While this transverse spin current is generically…

介观与纳米尺度物理 · 物理学 2007-05-23 J. H. Bardarson , I. Adagideli , Ph. Jacquod

We study the spin-orbital interaction and the spin Hall effect(SHE) of an electron moving on a noncommutative space under the influence of a vector potential A. On a noncommutative space we find that the commutator between the vector…

高能物理 - 理论 · 物理学 2011-08-23 Kai Ma , Sayipjamal Dulat

It was proposed recently by Murakami et al. [Science \textbf{301}, 1348(2003)] that in a large class of $p$-doped semiconductors, an applied electric field can drive a quantum dissipationless spin current in the direction perpendicular to…

介观与纳米尺度物理 · 物理学 2009-11-10 Liangbin Hu , Ju Gao , Shun-Qing Shen

Topological defects are found in a variety of systems, and their existence are robust under perturbations due to their topological nature. Here we introduce a new type of topological defects found in electromagnetic waves: topological spin…

光学 · 物理学 2022-10-18 Haiwen Wang , Charles C. Wojcik , Shanhui Fan

We studied the effect of strong electric current on spin waves interacting relativistically with the current. The spin-wave spectrum is calculated at arbitrary direction of the wave vector. It is shown that the alternating Hall current…

材料科学 · 物理学 2009-11-13 I. Ya. Korenblit

We describe an intrinsic spin-Hall effect in $n$-type bulk zinc-blende semiconductors with topological origin. When electron transport is confined to a waveguide structure, and the applied electric field is such that the spins of electrons…

介观与纳米尺度物理 · 物理学 2009-09-25 T. Fujita , M. B. A. Jalil , S. G. Tan

In the present paper the study of inertial spin current(that appears in an accelerated frame of reference) is extended to Non-Commutative (NC) space. The $\theta$-dependence, ($\theta$ being the NC parameter), of the inertial spin current…

介观与纳米尺度物理 · 物理学 2013-09-06 B. Basu , Debashree Chowdhury , Subir Ghosh

The phenomenon of mesoscopic Spin-Hall effect reveals in a nonequilibrium spin accumulation (driven by electric current) at the edges of a ballistic conductor or, more generally, in the regions with varying electron density. In this paper…

介观与纳米尺度物理 · 物理学 2009-12-24 P. G. Silvestrov , E. G. Mishchenko

We consider intrinsic contributions to the spin Hall and spin Nernst effects in a bilayer graphene. The relevant electronic spectrum is obtained from the tight binding Hamiltonian, which also includes the intrinsic spin-orbit interaction.…

介观与纳米尺度物理 · 物理学 2012-11-26 A. Dyrdal , J. Barnas

Spin Hall effects are a collection of phenomena, resulting from spin-orbit coupling, in which an electrical current flowing through a sample can lead to spin transport in a perpendicular direction and spin accumulation at lateral…

介观与纳米尺度物理 · 物理学 2007-09-18 Hans-Andreas Engel , Emmanuel I. Rashba , Bertrand I. Halperin
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