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We study the tunneling of conduction electrons through a (110)-oriented single-barrier heterostructure grown from III-V semiconductor compounds. It is shown that, due to low spatial symmetry of such a barrier, the tunneling current through…

介观与纳米尺度物理 · 物理学 2015-06-18 P. S. Alekseev , M. M. Glazov , S. A. Tarasenko

Higher-order topological superconductivity typically depends on spin-orbit interaction, and often necessitates well designed sample structures, nodal superconducting pairings or complex magnetic order. In this work, we propose a model that…

介观与纳米尺度物理 · 物理学 2025-10-21 Jinpeng Xiao , Qianglin Hu , Zuodong Yu , Weipeng Chen , Xiaobing Luo

A weak parallel Zeeman field combined with the spin-orbit coupling can induce the supercurrent in an s-wave two-dimensional superconductor. At the same time, the thermodynamically equilibrium state of such a system is characterized by the…

超导电性 · 物理学 2016-03-02 A. G. Mal'shukov

We investigate real-time dynamics of spin-polarized current in a quantum dot coupled to ferromagnetic leads in both parallel and antiparallel alignments. While an external bias voltage is taken constant in time, a gate terminal,…

介观与纳米尺度物理 · 物理学 2011-12-22 Fabricio M. Souza , Thiago L. Carrara , E. Vernek

Sharp localization transitions of chiral edge states in disordered quantum wires, subject to strong magnetic field, are shown to be driven by crossovers from two- to one-dimensional localization of bulk states. As a result, the two-terminal…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Kettemann , B. Kramer , T. Ohtsuki

We propose and investigate a simple one-dimensional model for a single-channel quantum wire hosting electrons that interact repulsively and are subject to a significant spin-orbit interaction. We show that an external Zeeman magnetic field,…

强关联电子 · 物理学 2020-10-29 Ren-Bo Wang , Akira Furusaki , Oleg A. Starykh

We consider a heterostructure consisting of a normal metal and a superconductor separated by a spin-active interface. At finite-bias voltages, spin-filtering and spin-mixing effects at the interface allow for an induced magnetization (spin…

介观与纳米尺度物理 · 物理学 2014-08-29 Oleksii Shevtsov , Tomas Löfwander

We demonstrate that the flow of a longitudinal spin current with different spin polarization will induce different patterns of charge accumulation in a two-terminal strip, or electric current distribution in a four-terminal Hall-bar…

介观与纳米尺度物理 · 物理学 2009-11-13 Jian Li , Shun-Qing Shen

Spin transport properties at finite electric and magnetic fields are studied by using the generalized semiclassical Boltzmann equation. It is found that the spin diffusion equation for non-equilibrium spin density and spin currents involves…

材料科学 · 物理学 2009-11-07 Y. Qi , S. Zhang

Using fully self consistent methods, we study spin transport in realistic, fabricable experimental spin valve systems consisting of two magnetic layers, a superconducting layer, and a spacer normal layer between the ferromagnets. Our…

超导电性 · 物理学 2018-05-09 Evan Moen , Oriol T. Valls

We show that a huge thermoelectric effect can be observed by contacting a superconductor whose density of states is spin-split by a Zeeman field with a ferromagnet with a non-zero polarization. The resulting thermopower exceeds $k_B/e$ by a…

超导电性 · 物理学 2014-02-10 A. Ozaeta , P. Virtanen , F. S. Bergeret , T. T. Heikkilä

Equilibrium spin-current is calculated in a quasi-two-dimensional electron gas with finite thickness under in-plane magnetic field and in the presence of Rashba- and Dresselhaus spin-orbit interactions. The transverse confinement is modeled…

介观与纳米尺度物理 · 物理学 2015-06-03 E. Nakhmedov , O. Alekperov

We demonstrate that in a superconducting multilayered system with alternating interlayer coupling a new type of nonuniform superconducting state can be realized under in-plane magnetic field. The Zeeman effect in this state is compensated…

超导电性 · 物理学 2009-11-11 A. Buzdin , S. Tollis , J. Cayssol

We theoretically study the renormalization of inertial effects on the spin dependent transport of conduction electrons in a semiconductor by taking into account the interband mixing on the basis of k.p perturbation theory. In our analysis,…

介观与纳米尺度物理 · 物理学 2013-09-06 B. Basu , Debashree Chowdhury

The Letter is analyzing bulk spin (moment) currents and spin (moment) accumulation at edges of a 2D topological insulator taking into account reflection from edges. Accumulation occurs only at edge states, which distinguish topological…

介观与纳米尺度物理 · 物理学 2015-05-19 E. B. Sonin

Superconductors used in magnet technology could carry extreme currents because of their ability to keep the magnetic flux motionless. The dynamics of the magnetic flux interaction with superconductors is controlled by this property. The…

加速器物理 · 物理学 2015-01-29 F Gömöry

Spin effects in a normal two-dimensional (2D) electron gas in lateral contact with a 2D region with spin-orbit interaction are studied. The peculiarity of this system is the presence of spin-dependent scattering of electrons from the…

介观与纳米尺度物理 · 物理学 2015-05-13 Aleksei A. Sukhanov , Vladimir A. Sablikov , Yurii Ya. Tkach

In this paper, spin-dependent transport through a spin diode composed of a quantum dot coupled to a normal metal and a ferromagnetic lead is studied. The current polarization and the spin accumulation are analyzed using the equations of…

介观与纳米尺度物理 · 物理学 2015-06-04 M. Bagheri Tagani , H. Rahimpour Soleimani

Coherent spin-dependent transport through a junction containing of Normal/Ferromagnetic/Normal bilayer graphene nanoribbon with zigzag edges is investigated by using Landauer formalism. In a more realistic set-up, the exchange field is…

介观与纳米尺度物理 · 物理学 2014-03-05 Vahid Derakhshan , Hosein Cheraghchi

We study dc-transport and magnetization dynamics in a junction of arbitrary transparency consisting of two spin-singlet superconducting leads connected via a single classical spin precessing at the frequency $\Omega$. The presence of the…

介观与纳米尺度物理 · 物理学 2010-05-06 S. Teber , C. Holmqvist , M. Fogelstrom
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