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

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Using the transfer matrix method and the effective-mass approximation, the effect of resonant states on spin transport is studied in ZnSe/ZnMnSe/ZnSe/ZnMnSe/ZnSe structures under the influence of both electric and magnetic fields. The…

介观与纳米尺度物理 · 物理学 2009-11-11 A. Saffarzadeh , M. Bahar , M. Banihasan

We consider a spin-orbit-coupled two-dimensional electron system under the influence of a thermal gradient externally applied to two attached reservoirs. We discuss the generated voltage bias (charge Seebeck effect), spin bias (spin Seebeck…

介观与纳米尺度物理 · 物理学 2015-03-05 M. I. Alomar , Llorenç Serra , David Sanchez

Using Keldysh nonequilibrium Green's function method we study the spin-dependent transport through impurity-doped few layer graphene sandwiched between two magnetic leads with an arbitrary mutual orientations of the magnetizations. We find…

材料科学 · 物理学 2015-05-20 Kai-He Ding , Zhen-Gang Zhu , Zhen-Hua Zhang , Jamal Berakdar

The controllability of charge transport through an organic molecular spin-valve system is theoretically investigated on the basis of a Su-Schrieffer-Heeger model combined with the non-equilibrium Green's function formalism. We show how the…

材料科学 · 物理学 2007-05-23 J. H. Wei , S. J. Xie , L. M. Mei , YiJing Yan

We develop a detailed theory for spin transport in a one-dimensional quantum wire described by Luttinger liquid theory. A hydrodynamic description for the quantum wire is supplemented by boundary conditions taking into account the exchange…

强关联电子 · 物理学 2009-10-31 Leon Balents , Reinhold Egger

Theory of weak localization in two-dimensional high-mobility semiconductor systems is developed with allowance for the spin-orbit interaction. The obtained expressions for anomalous magnetoresistance are valid in the whole range of…

介观与纳米尺度物理 · 物理学 2015-05-13 M. M. Glazov , L. E. Golub

The spin-polarized transport is investigated in a new type of magnetic tunnel junction which consists of two ferromagnetic electrodes separated by a magnetic barrier and a nonmagnetic metallic spacer. Based on the transfer matrix method and…

介观与纳米尺度物理 · 物理学 2009-11-10 Ali A. Shokri , Alireza Saffarzadeh

Unusual features in the bias dependence of spin transport are observed in a Co/Au/NiFe spin valve fabricated on a highly textured Cu(100)/Si(100) Schottky interface, exploiting the local probing capabilities of a Ballistic electron magnetic…

介观与纳米尺度物理 · 物理学 2017-02-08 S. Parui , K. G. Rana , T. Banerjee

The material dependence of hot electron magnetotransport in a spin-valve transistor has been theoretically explored. We calculate the parallel and anti-parallel collector current changing the types and relative spin orientation of the…

凝聚态物理 · 物理学 2007-05-23 Jisang Hong

Tungsten diselenide, WSe2 shows excellent properties and become very promising material among two dimensional semiconductors. Wide band gap and large spin-orbit coupling along with naturally lacking inversion symmetry in the monolayer WSe2…

材料科学 · 物理学 2023-10-16 S. Gupta , R. Ohshima , Y. Ando , T. Endo , Y. Miyata , M. Shiraishi

Spintronics is an approach to electronics in which the spin of the electrons is exploited to control the electric resistance R of devices. One basic building block is the spin-valve, which is formed if two ferromagnetic electrodes are…

介观与纳米尺度物理 · 物理学 2016-08-16 Sangeeta Sahoo , Takis Kontos , Jürg Furer , Christian Hoffmann , Matthias Gräber , Audrey Cottet , Christian Schönenberger

A superconducting double spin valve device is proposed. Its operation takes advantage of the interplay between the spin-filtering effect of ferromagnetic insulators and superconductivity-induced out-of-equilibrium transport. Depending on…

介观与纳米尺度物理 · 物理学 2009-08-03 Francesco Giazotto

A mesoscopic spin valve is used to determine the effective spin polarization of electrons tunneling from and into ferromagnetic transition metals at finite voltages. The tunneling spin polarization from the ferromagnet (FM) slowly decreases…

介观与纳米尺度物理 · 物理学 2007-05-23 S. O. Valenzuela , D. J. Monsma , C. M. Marcus , V. Narayanamurti , M. Tinkham

The spin transfer torque in all-metal dual spin valve, in which two antiparallelly aligned pinned ferromagnetic layers are on the two sides of a free ferromagnetic layer with two thin nonmagnetic spacers in between, is studied in the…

介观与纳米尺度物理 · 物理学 2011-06-23 P. Yan , Z. Z. Sun , X. R. Wang

We examine transport through a quantum dot coupled to three ferromagnetic leads in the regime of weak tunnel coupling. A finite source-drain voltage generates a nonequilibrium spin on the otherwise non-magnetic quantum dot. This spin…

介观与纳米尺度物理 · 物理学 2007-09-28 Daniel Urban , Matthias Braun , Jürgen König

We report a theoretical study on the spin and electron transport in the nonlocal lateral spin valve with non-collinear magnetic configuration. The nonlocal magnetoresistance, defined as the voltage difference on the detection lead over the…

介观与纳米尺度物理 · 物理学 2008-06-16 Yuan Xu , Ke Xia , Zhongshui Ma

The dynamics of the magnetic order parameters of ferromagnet/normal-metal/ferromagnet spin valves and isolated ferromagnets may be very different. We investigate the role of the nonequilibrium spin-current exchange between the ferromagnets…

介观与纳米尺度物理 · 物理学 2009-11-07 Yaroslav Tserkovnyak , Arne Brataas , Gerrit E. W. Bauer

We study the influence of spin waves on transport through a single-level quantum dot weakly coupled to ferromagnetic electrodes with noncollinear magnetizations. Side peaks appear in the differential conductance due to emission and…

介观与纳米尺度物理 · 物理学 2010-11-15 Björn Sothmann , Jürgen König , Anatoli Kadigrobov

We present an extension to simple s-d models, aiming at simulating ultrafast magnetization dynamics and spin transport in metallic heterostructures. In particular, we consider an alternative spin dissipation channel due to a finite exchange…

材料科学 · 物理学 2023-06-14 Quentin Remy

We develop a theory of electron transport through quantum dots that are weakly coupled to ferromagnetic leads. The theory covers both the linear and nonlinear transport regime, takes non-collinear magnetization of the leads into account,…

介观与纳米尺度物理 · 物理学 2009-11-10 Matthias Braun , Jürgen König , Jan Martinek