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With its potential for drastically reduced operation power of information processing devices, electric field control of magnetism has generated huge research interest. Recently, novel perspectives offered by the inherently large spin-orbit…

材料科学 · 物理学 2023-09-12 Arun Kumar Jaiswal , Robert Eder , Di Wang , Vanessa Wollersen , Matthieu Le Tacon , Dirk Fuchs

The microscopic structure of spin-orbit fields for the technologically important Fe/GaAs interface is uncovered from first principles. A symmetry based method allows to obtain the spin-orbit fields---both their magnitude and…

介观与纳米尺度物理 · 物理学 2013-09-18 Martin Gmitra , Alex Matos-Abiague , Claudia Draxl , Jaroslav Fabian

The interaction between the itinerant spins in metals and localized spins in magnetic insulators thus far has only been explored in collinear spin systems, such as garnets. Here, we report the spin-Hall magnetoresistance (SMR) sensitive to…

材料科学 · 物理学 2016-10-17 A. Aqeel , N. Vlietstra , A. Roy , M. Mostovoy , B. J. van Wees , T. T. M. Palstra

Itinerant ferromagnets constitute an important class of materials wherein spin-polarization can affect the electric transport properties in nontrivial ways. One such phenomenon is anomalous Hall effect which depends on the details of the…

Current-driven magnetization dynamics of single ferromagnets in heavy metal/ferromagnet bilayers has been recently realized. In this work, spin torque induced by so-called Rashba spin-orbit coupling and spin Hall effect are considered…

介观与纳米尺度物理 · 物理学 2012-04-24 Aurelien Manchon

We demonstrate that spin-orbit coupled electrons in a magnetically doped system exert a spin torque on the local magnetization, without a flowing current, when the chemical potential is modulated in a magnetic field. The spin torque is…

介观与纳米尺度物理 · 物理学 2015-09-17 Kentaro Nomura , Daichi Kurebayashi

We formulate a theory of current-induced spin torques in inhomogeneous III-V ferromagnetic semiconductors. The carrier spin-3/2 and large spin-orbit interaction, leading to spin non-conservation, introduce significant conceptual differences…

其他凝聚态物理 · 物理学 2015-05-13 Dimitrie Culcer , M. E. Lucassen , R. A. Duine , R. Winkler

Spin transport in electric conductors is largely determined by two material parameters - spin diffusion length and spin Hall angle. In metals, these are typically determined indirectly by probing magnetoresistance in magnet/metal…

An important consequence of the discovery of giant magnetoresistance in metallic magnetic multilayers is a broad interest in spin dependent effects in electronic transport through magnetic nanostructures. An example of such systems are…

介观与纳米尺度物理 · 物理学 2009-11-13 J. Barnas , I. Weymann

Transport property under metallic ferroaxial ordering in an external magnetic field is theoretically investigated. After presenting the relation between the magnetoconductivity tensor and ferroaxial moment from the symmetry viewpoint, we…

强关联电子 · 物理学 2024-04-23 Satoru Hayami , Rikuto Oiwa , Hiroaki Kusunose

We theoretically investigate spin dependent transport in ferromagnetic/normal metal/ferromagnetic single electron transistors by applying master equation calculations using a two dimensional space of states involving spin and charge degrees…

介观与纳米尺度物理 · 物理学 2009-11-07 Watson Kuo , C. D. Chen

The Berry phase due to the spin wavefunction gives rise to the orbital ferromagnetism and anomalous Hall effect in the non-coplanar antiferromagnetic ordered state on face centered cubic (fcc) lattice once the crystal is distorted…

强关联电子 · 物理学 2009-11-07 Ryuichi Shindou , Naoto Nagaosa

Recent works aiming at understanding magnetotransport phenomena in ferromagnetic III-V and II-VI semiconductors are described. Theory of the anomalous Hall effect in p-type magnetic semiconductors is discussed, and the relative role of…

材料科学 · 物理学 2007-05-23 Tomasz Dietl , Fumihiro Matsukura , Hideo Ohno , Joel Cibert , David Ferrand

Via the spin-Hall effect and its inverse, in-plane charge currents in a normal metal$-$ferromagnet (N$|$F) bilayer can be used to excite and detect magnetization dynamics in F. Using a magneto-electric circuit approach, we here consider the…

介观与纳米尺度物理 · 物理学 2026-03-05 Ulli Gems , Oliver Franke , Piet W. Brouwer

We report a comprehensive study on the intrinsic spin Hall conductivity (SHC) of semimetals MoTe2 and WTe2 by ab initio calculation. Large SHC and desirable spin Hall angles have been discovered, due to the strong spin orbit coupling effect…

材料科学 · 物理学 2019-03-06 Jiaqi Zhou , Junfeng Qiao , Arnaud Bournel , Weisheng Zhao

We theoretically investigate spin transport in half-metallic ferromagnets at finite temperatures. The side-jump and skew-scattering contributions to spin Hall conductivity are derived using the Kubo formula. The electron-magnon interaction…

材料科学 · 物理学 2016-11-08 Y. Ohnuma , M. Matsuo , S. Maekawa

An extension of Drude model is proposed that accounts for spin and spin-orbit interaction of charge carriers. Spin currents appear due to combined action of the external electric field, crystal field and scattering of charge carriers. The…

介观与纳米尺度物理 · 物理学 2009-11-13 Eugene M. Chudnovsky

Using the microscopic theory of the conserved spin current [Phys. Rev. Lett. \textbf{96}, 076604 (2006)], we investigate the spin Hall effect in the two dimensional electron gas system with a perpendicular magnetic field. The spin Hall…

介观与纳米尺度物理 · 物理学 2009-11-13 Zhigang Wang , Ping Zhang

Intrinsic spin currents are encountered in noncentrosymmetric crystals without any external electric fields; these currents are caused by spin-orbit interaction. In this paper, various theoretical aspects of this phenomenon in bulk…

材料科学 · 物理学 2024-11-11 Ilja Turek

Understanding the role of spin-orbit coupling (SOC) has been crucial to controlling magnetic anisotropy in magnetic multilayer films. It has been shown that electronic structure can be altered via interface SOC by varying the superlattice…