中文
相关论文

相关论文: Theoretical study of spin-dependent transport in W…

200 篇论文

Adopting the mean-field composite fermion picture, we describe the magneto-transport properties of a two-dimensional electron gas with laterally modulated density around filling factor 1/2. The occurrence of a strong positive…

介观与纳米尺度物理 · 物理学 2007-05-23 S. D. M. Zwerschke , R. R. Gerhardts

Spin-orbit torques (SOTs) from transition metal dichalcogenides systems (TMDs) in conjunction with ferromagnetic materials are recently attractive in spintronics for their versatile features. However, most of the previously studied…

介观与纳米尺度物理 · 物理学 2021-04-13 Cheng-Wei Peng , Wei-Bang Liao , Tian-Yue Chen , Chi-Feng Pai

The silicon (Si) based spin-MOSFET (metal-oxide semiconductor field-effect transistor) is considered to be the building block of low-power-consumption electronics, utilizing spin-degrees of freedom in semiconductor devices. In this paper,…

介观与纳米尺度物理 · 物理学 2018-12-27 Duong Dinh Hiep , Masaaki Tanaka , Pham Nam Hai

Electronic and transport properties of a short Ni nanowire suspended between two semi-infinite ferromagnetic Ni leads are explored in the framework of density-functional theory. The spin-dependent ballistic conductance of the nanowire is…

材料科学 · 物理学 2009-11-11 A. Smogunov , A. Dal Corso , E. Tosatti

Transition metal dichalcogenides (TMDs) are promising materials for efficient generation of current-induced spin-orbit torques on an adjacent ferromagnetic layer. Numerous effects, both interfacial and bulk, have been put forward to explain…

We investigate ballistic spin transport in a two dimensional electron gas system through magnetic barriers of various geometries using the transfer matrix method. While most of the previous studies have focused on the effect of magnetic…

介观与纳米尺度物理 · 物理学 2015-06-18 Nammee Kim , Heesang Kim

New mechanism of magnetoresistance, based on tunneling-emission of spin polarized electrons from ferromagnets (FM) into semiconductors (S) and precession of electron spin in the semiconductor layer under external magnetic field, is…

材料科学 · 物理学 2009-11-10 A. M. Bratkovsky , V. V. Osipov

We describe spin transfer in a ferromagnet/normal metal/ferromagnet spin-valve point contact. Spin is transferred from the spin-polarized device current to the magnetization of the free layer by the mechanism of incoherent magnon emission…

介观与纳米尺度物理 · 物理学 2007-05-23 V. I. Kozub , J. Caro

In this work we demonstrate explicit analytical expressions for both charge and spin currents which constitute the 2x2 spinor in magnetic tunnel junctions with noncollinear magnetizations under applied voltage. The calculations have been…

介观与纳米尺度物理 · 物理学 2015-09-23 M. Chshiev , A. Manchon , A. Kalitsov , N. Ryzhanova , A. Vedyayev , N. Strelkov , W. H. Butler , B. Dieny

We consider current-induced spin-transfer torque on an antiferromagnet in a dual spin-valve setup. It is demonstrated that a net magnetization may be induced in the AFM by partially or completely aligning the sublattice magnetizations via a…

介观与纳米尺度物理 · 物理学 2015-05-30 Jacob Linder

We consider quasiballistic electron transmission in a one-dimensional quantum wire subject to both time-independent and periodic potentials of a finger gate that results in a coordinate- and time-dependent Rashba-type spin-orbit coupling. A…

介观与纳米尺度物理 · 物理学 2013-10-11 Almas F. Sadreev , E. Ya. Sherman

The time-dependent spin current mediated spin transfer torque behaviour has been investigated via scattering formalism within density functional theory framework supported by Green's function. Quantum magnetotransport characteristics have…

介观与纳米尺度物理 · 物理学 2020-08-10 Sushant Kumar Behera , Pritam Deb

A theory of the proximity effects of the exchange splitting in a ferromagnetic metal on a two dimensional electron gas (2DEG) in a semiconductor is presented. The resulting spin-dependent energy and lifetime in the 2DEG create a marked…

介观与纳米尺度物理 · 物理学 2009-11-10 J. P. McGuire , C. Ciuti , L. J. Sham

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

We compute the Hall angle and the magnetoresistance of the spin-fermion model, which is a successful phenomenological theory to describe the physics of the cuprates and iron-based superconductors within a wide range of doping regimes. We…

强关联电子 · 物理学 2017-09-04 Hermann Freire

Magnetotransport in 2DES's formed in Si-MOSFET's and Si/SiGe quantum wells at low temperatures is reported. Metallic temperature dependence of resistivity is observed for the n-Si/SiGe sample even in a parallel magnetic field of 9T, where…

强关联电子 · 物理学 2009-10-31 Tohru Okamoto , K. Hosoya , S. Kawaji , A. Yagi , A. Yutani , Y. Shiraki

All van der Waals (vdW) Fe3GeTe2/Cr2Ge2Te6/graphite magnetic heterojunctions have been fabricated via mechanical exfoliation and stacking, and their magnetotransport properties are studied in detail. At low bias voltages large negative…

材料科学 · 物理学 2022-10-26 Honglei Feng , Gang Shi , Dayu Yan , Yong Li , Youguo Shi , Yang Xu , Peng Xiong , Yongqing Li

A one dimensional theory of lateral spin-polarized transport is derived from the two dimensional flow in the vertical cross section of a stack of ferromagnetic and paramagnetic layers. This takes into account the influence of the lead on…

材料科学 · 物理学 2008-02-20 H. Dery , L. Cywinski , L. J. Sham

We report the observation of tunneling anisotropic magnetoresistance (TAMR) in an organic spin-valve-like structure with only one ferromagnetic electrode. The device is based on a new high mobility perylene diimide-based n-type organic…

材料科学 · 物理学 2013-05-29 M. Gruenewald , M. Wahler , M. Michelfeit , C. Gould , R. Schmidt , F. Wuerthner , G. Schmidt , L. W. Molenkamp

We study charge transport in a two dimensional hybrid systems consisting of nonmagnetic two dimensional electron gas with spin-orbit interaction sandwiched between a Ferromagnetic lead and a normal metallic lead (FM/2DEG/NM). An {\it…

介观与纳米尺度物理 · 物理学 2007-05-23 T. P. Pareek