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相关论文: Spin currents in crystals with spin-orbit coupling…

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The failure of spatial inversion symmetry in noncentrosymmetric materials introduces two different types of spin-independent and spin-dependent electron hopping. The spin-dependent term can be translated into a quasi-spin-orbit coupling and…

超导电性 · 物理学 2021-04-30 Mehdi Biderang , Mohammad-Hossein Zare , Alireza Akbari

Using microscopic theory, we investigate the properties of a spin current driven by magnetization dynamics. In the limit of smooth magnetization texture, the dominant spin current induced by the spin pumping effect is shown to be the…

介观与纳米尺度物理 · 物理学 2010-04-08 Akihito Takeuchi , Kazuhiro Hosono , Gen Tatara

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

The dynamic coupling between spin and charge currents in non-magnetic conductors is considered. As a consequence of this coupling, the spin dynamics is directly reflected in the electrical impedance of the sample, with a relevant frequency…

介观与纳米尺度物理 · 物理学 2019-08-14 P. S. Alekseev , M. I. Dyakonov

Persistent currents in disordered mesoscopic rings threaded by a magnetic flux are calculated using exact diagonalization methods in the one-dimensional (1D) case and self-consistent Hartree-Fock treatments for two dimensional (2D) systems.…

凝聚态物理 · 物理学 2008-02-03 Georges Bouzerar , Didier Poilblanc

Circulating orbital currents, originating from the spin-orbit interaction, are calculated for semiconductor nanostructures in the shape of spheres, disks, spherical shells and rings for the electron ground state with spin oriented along a…

介观与纳米尺度物理 · 物理学 2015-06-22 J. van Bree , A. Yu. Silov , P. M. Koenraad , M. E. Flatté

In this paper, we investigate the spin and tunneling dynamics of a spin-orbit-coupled noninteracting Bose-Einstein condensate in a periodically driven non-Hermitian double-well potential. Under high-frequency driving, we obtain the…

量子气体 · 物理学 2023-01-04 Jia Tang , Zhou Hu , Zhao-Yun Zeng , Jinpeng Xiao , Lei Li , Yajiang Chen , Ai-Xi Chen , Xiaobing Luo

We present a theoretical study of diffusive superconducting systems with extrinsic spin-orbit coupling and arbitrarily strong impurity potential. We derive from a microscopic Hamiltonian a diffusion equation for the quasi-classical Green…

超导电性 · 物理学 2018-10-24 Chunli Huang , Ilya V. Tokatly , F. Sebastian Bergeret

The influence of spin-orbit interaction on chemical bonds in elemental solids and homonuclear dimers is analyzed by means of density-functional-theory calculations. Employing highly precise all-electron full-potential methodology, our…

材料科学 · 物理学 2022-04-07 Andris Gulans , Claudia Draxl

Spin Hall effect in a nonlocal spin-injection device is theoretically studied. Using a nonlocal spin-injection technique, a pure spin current is created in a nonmagnetic metal (N). The spin current flowing in N is deflected by spin-orbit…

介观与纳米尺度物理 · 物理学 2015-06-25 S. Takahashi , S. Maekawa

The present review analyzes and compares various types of dissipationless spin transport: (1) Superfluid transport, when the spin-current state is a metastable state (a local but not the absolute minimum in the parameter space). (2)…

其他凝聚态物理 · 物理学 2012-08-09 E. B. Sonin

Spin wave propagation and dynamic control are essential for reconfigurable magnonic and spintronic devices. Here, tunable mode coupling and band hybridisation are demonstrated in a nanopatterned bicomponent magnonic crystal consisting of a…

介观与纳米尺度物理 · 物理学 2026-05-22 Nikhil Kumar

The spin-charge coupled dynamics in a thin, magnetized metallic system are investigated. The effective driving force acting on the charge carriers is generated by a dynamical magnetic texture, which can be induced, e.g., by a magnetic…

介观与纳米尺度物理 · 物理学 2017-03-06 Sebastian Tölle , Ulrich Eckern , Cosimo Gorini

We construct a novel scattering theory to investigate magnetoelectrically induced spin polarizations. Local spin polarizations generated by electric currents passing through a spin-orbit coupled mesoscopic system are measured by an external…

介观与纳米尺度物理 · 物理学 2015-05-14 Ph. Jacquod

The band structure of two-dimensional artificial superlattices in the presence of (Rashba-type) spin-orbit interaction (SOI) is presented. The position and shape of the energy bands in these spintronic crystals depend on the geometry as…

介观与纳米尺度物理 · 物理学 2015-06-24 Peter Foldi , Viktor Szaszko-Bogar , F. M. Peeters

Account of an intrinsic spin-orbit coupling in the valence bands of common semiconductors yields the scalar spin-orbit-rotation term in the effective-mass Hamiltonian of the conduction-band electron. This result is obtained within the…

介观与纳米尺度物理 · 物理学 2009-11-13 Yuri A. Serebrennikov

By viewing current in the detecting lead of a spintronic device as being an ensemble of flowing spins corresponding to a mixed quantum state, where each spin itself is generally described by an improper mixture generated during the…

介观与纳米尺度物理 · 物理学 2007-05-23 Branislav K. Nikolic , Satofumi Souma

Controlling spin current lies at the heart of spintronics and its applications. The sign of spin currents is monotonous in ferromagnets once the current direction is determined. Spin currents in antiferromagnets can possess opposite…

We analyze the spin-orbit terms in multi-subband quasi-two-dimensional electron systems, and how they descend from the bulk Hamiltonian of the conduction band. Measurements of spin-orbit terms in one subband alone are shown to give…

介观与纳米尺度物理 · 物理学 2008-11-03 K. V. Kavokin , M. E. Portnoi

We propose a general theory of charge, spin, and orbital diffusion based on Keldysh formalism. Our findings indicate that the diffusivity of orbital angular momentum in metals is much lower than that of spin or charge due to the strong…

介观与纳米尺度物理 · 物理学 2024-10-28 Xiaobai Ning , A. Pezo , Kyoung-Whan Kim , Weisheng Zhao , Kyung-Jin Lee , Aurelien Manchon