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Spin-orbit torques in ferromagnet/nonmagnet/ferromagnet trilayers are studied using a combination of symmetry analysis, circuit theory, semiclassical simulations, and first-principles calculations using the non-equilibrium Green's function…

Mesoscale and Nanoscale Physics · Physics 2024-09-05 V. P. Amin , G. G. Baez Flores , A. A. Kovalev , K. D. Belashchenko

Magnetic field is a powerful tool for the manipulation of material's electronic and optical properties. In the domain of transition metal dichalcogenide monolayers, it allows one to unveil the spin, valley, and orbital properties of…

Mesoscale and Nanoscale Physics · Physics 2024-06-10 A. Kudlis , I. A. Aleksandrov , K. Varga , I. A. Shelykh , V. Shahnazaryan

Spin-orbit torques offer a promising mechanism for electrically controlling magnetization dynamics in nanoscale heterostructures. While spin-orbit torques occur predominately at interfaces, the physical mechanisms underlying these torques…

Mesoscale and Nanoscale Physics · Physics 2020-12-02 Vivek P. Amin , Paul M. Haney , Mark D. Stiles

We predict a specific type of charge Hall effect in undoped ferromagnetic graphene that is generated by the spin Hall mechanism in the absence of an external magnetic field. The essential feature is the so-called spin chiral configuration…

Mesoscale and Nanoscale Physics · Physics 2013-09-27 Babak Zare Rameshti , Malek Zareyan

First-principles calculations were carried out to explore the possible coupling between spin-polarized electronic states and ferroelectric polarization in monolayers of transition-metal dichalcogenides MX 2 (M = Mo, W; X = S, Se, Te) with…

Strongly Correlated Electrons · Physics 2016-11-09 Emilie Bruyer , Domenico Di Sante , Paolo Barone , Alessandro Stroppa , Myung-Hwan Whangbo , Silvia Picozzi

An anomalous (inverse) spin accumulation in the nonmagnetic spacer may build up when the spin valve consists of magnetic films having different spin symmetries. This leads to wavy-like dependence of spin-transfer torque on the angle between…

Mesoscale and Nanoscale Physics · Physics 2010-04-12 E. Jaromirska , P. Balaz , L. Lopez Diaz , J. Barnas

We propose and analyze a mechanism for inducing spin Hall currents in ordinary (1H phase) monolayer transition metal dichalcogenides (TMDs) due to the nonlinear process of optical rectification. The photo-induced spin current is…

Mesoscale and Nanoscale Physics · Physics 2018-12-07 Alireza Taghizadeh , T. G. Pedersen

Novel spin transport behavior is theoretically shown to result from replacing the usual metal (or poly-silicon) gate in a silicon field-effect transistor with a ferromagnet, separated from the semiconductor by an ultra-thin oxide. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 J. P. McGuire , C. Ciuti , L. J. Sham

Janus dichalcogenide multilayers provide a paradigmatic platform to engineer electronic phenomena dominated by spin-orbit coupling. Their unique spin-orbit effects stem from local mirror symmetry breaking in each layer, which induces a…

Mesoscale and Nanoscale Physics · Physics 2021-07-28 D. Soriano , J. L. Lado

The electronic and optoelectronic properties of two dimensional materials have been extensively explored in graphene and layered transition metal dichalcogenides (TMDs). Spintronics in these two-dimensional materials could provide novel…

Mesoscale and Nanoscale Physics · Physics 2018-11-22 Qiming Shao , Guoqiang Yu , Yann-Wen Lan , Yumeng Shi , Ming-Yang Li , Cheng Zheng , Xiaodan Zhu , Lain-Jong Li , Pedram Khalili Amiri , Kang L. Wang

The electronic structure of (group-III) metal-monochalcogenide monolayers exhibits many unusual features. Some, such as the unusually distorted upper valence band dispersion we describe as a 'caldera', are primarily the result of purely…

Materials Science · Physics 2015-11-20 Pengke Li , Ian Appelbaum

A new current induced spin-torque transfer effect has been observed in a single ferromagnetic layer without resorting to multilayers. At a specific current density of one polarity injected from a point contact, abrupt resistance changes due…

Condensed Matter · Physics 2009-11-07 Y. Ji , C. L. Chien

We report on nonlocal transport in superconductor hybrid structures, with ferromagnetic as well as normal-metal tunnel junctions attached to the superconductor. In the presence of a strong Zeeman splitting of the density of states, both…

Superconductivity · Physics 2013-02-26 M. J. Wolf , F. Hübler , S. Kolenda , H. v. Löhneysen , D. Beckmann

Two-dimensional (2D) multiferroic materials are ideal systems for exploring new coupling mechanisms between different ferroic orders and producing novel quantum phenomena with potential applications. We employed first-principles density…

Materials Science · Physics 2022-09-20 Weiwei Gao , Jijun Zhao , James R. Chelikowsky

Large spin-orbital proximity effects have been predicted in graphene interfaced with a transition metal dichalcogenide layer. Whereas clear evidence for an enhanced spin-orbit coupling has been found at large carrier densities, the type of…

The aim of this work is to describe the spin magnetization of graphene with Rashba spinorbit coupling and Zeeman effect. It is shown that the magnetization depends critically on the spin-orbit coupling l that is controlled with an external…

Strongly Correlated Electrons · Physics 2017-08-28 Federico Escudero , Lucas Sourrouille , Juan Sebastián Ardenghi , Paula Jasen

A magnon spin-orbit coupling, induced by the dipole-dipole interaction, is derived in monoclinic-stacked bilayer honeycomb spin lattice with perpendicular magnetic anisotropy and antiferromagnetic interlayer coupling. Linear crossings are…

Mesoscale and Nanoscale Physics · Physics 2020-10-28 Jie Liu , Lin Wang , Ka Shen

We study the conduction band spin splitting that arises in transition metal dichalcogenide (TMD) semiconductor monolayers such as MoS$_2$, MoSe$_2$, WS$_2$ and WSe$_2$ due to the combination of spin-orbit coupling and lack of inversion…

Materials Science · Physics 2014-01-01 K. Kośmider , J. W. González , J. Fernández-Rossier

The paramount acumen for controlling spin transport properties in nonmagnetic materials is the usage of spin-orbit coupling (SOC). We propose a model to calculate the spin hall angle (SHA) for the elemental transition metal dichalcogenide…

Mesoscale and Nanoscale Physics · Physics 2025-07-03 Swastik Sahoo , Satadeep Bhattacharjee , Bhaskaran Muralidharan

In recent years, orbitronic effects have attracted growing attention as complementary counterparts to the well-established spintronic phenomena. In this work, we demonstrate that monolayers of transition metal dichalcogenides provide an…

Mesoscale and Nanoscale Physics · Physics 2026-05-12 Saikat Saha , Arnab Bose , Sayantika Bhowal
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