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We investigate theoretically the properties of a weak link between two superconducting leads, which has the form of a non-superconducting nanowire with a strong Rashba spin-orbit coupling caused by an electric field. In the Coulomb blockade…

介观与纳米尺度物理 · 物理学 2016-06-01 R. I. Shekhter , O. Entin-Wohlman , M. Jonson , A. Aharony

We consider a new kind of superconducting proximity effect created by the tunneling of "spin split" Cooper pairs between two conventional superconductors connected by a normal conductor containing a quantum dot. The difference compared to…

介观与纳米尺度物理 · 物理学 2018-07-10 O. Entin-Wohlman , R. I. Shekhter , M. Jonson , A. Aharony

This article presents an overview of results pertaining to electronic structure, transport properties, and interaction effects in ballistic quantum wires with Rashba spin splitting. Limits of weak and strong spin--orbit coupling are…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Governale , U. Zuelicke

Suspended nanowires are shown to provide mechanically-controlled coherent mixing/splitting of the spin states of transmitted electrons, caused by the Rashba spin-orbit interaction. The sensitivity of the latter to mechanical bending makes…

介观与纳米尺度物理 · 物理学 2013-10-30 R. I. Shekhter , O. Entin-Wohlman , A. Aharony

A scheme for a spin-polarized current separator is proposed by studying the spin-dependent electron transport of a fork-shaped nanostructure with Rashba spin-orbit coupling (SOC), connected to three leads with the same width. It is found…

介观与纳米尺度物理 · 物理学 2012-03-27 Xianbo Xiao , Yuguang Chen

Rashba spin-orbit interactions generated by time-dependent electric fields acting on weak links (that couple together non-magnetic macroscopic leads) can magnetize the junction. The Rashba spin-orbit interaction that affects the spins of…

介观与纳米尺度物理 · 物理学 2025-10-23 Debashree Chowdhury , O. Entin-Wohlman , A. Aharony , R. I. Shekhter , M. Jonson

We present numerical calculations of the ballistic spin-transport properties of quasi-one-dimensional wires in the presence of the spin-orbit (Rashba) interaction. A tight-binding analog of the Rashba Hamiltonian which models the Rashba…

介观与纳米尺度物理 · 物理学 2009-11-07 Francisco Mireles , George Kirczenow

Semiconductor Rashba nanowires are quasi-one dimensional systems that have large spin-orbit (SO) coupling arising from a broken inversion symmetry due to an external electric field. There exist parametrized multiband models that can…

介观与纳米尺度物理 · 物理学 2020-08-25 Samuel D. Escribano , Alfredo Levy Yeyati , Elsa Prada

The continuous progress in fabricating low-dimensional systems with large spin-orbit couplings has reached a point in which nowadays materials may display spin-orbit splitting energies ranging from a few to hundreds of meV. This situation…

强关联电子 · 物理学 2015-05-13 C. Grimaldi

The Rashba effect as an electrically tunable spin-orbit interaction is the base for a multitude of possible applications such as spin filters, spin transistors, and quantum computing using Majorana states in nanowires. Moreover, this…

介观与纳米尺度物理 · 物理学 2016-10-13 Jan Raphael Bindel , Mike Pezzotta , Jascha Ulrich , Marcus Liebmann , Eugene Sherman , Markus Morgenstern

In this work we study interacting electrons on square lattice in the presence of strong Rashba spin-orbit interaction. The spin-orbit term forces the time-reversal electron states to be paired in even Cooper channels. For concreteness, we…

强关联电子 · 物理学 2019-03-27 Rasoul Ghadimi , Mehdi Kargarian , S. Akbar Jafari

We investigate the effect of strong spin-orbit interaction on the electronic transport through non-magnetic impurities in one-dimensional systems. When a perpendicular magnetic field is applied, the electron spin polarization becomes…

材料科学 · 物理学 2007-05-23 R. G. Pereira , E. Miranda

A device enabling mechanically-controlled spin and electric transport in mesoscopic structures is proposed. It is based on the transfer of electrons through weak links formed by suspended nanowires, on which the charge carriers experience a…

介观与纳米尺度物理 · 物理学 2014-07-09 R. I. Shekhter , O. Entin-Wohlman , A. Aharony

Inefficient screening of electric fields in nanoconductors makes electric manipulation of electronic transport in nanodevices possible. Accordingly, electrostatic (charge) gating is routinely used to affect and control the Coulomb…

介观与纳米尺度物理 · 物理学 2015-07-22 R. I. Shekhter , M. Jonson

The Rashba effect is one of the most striking manifestations of spin-orbit coupling in solids, and provides a cornerstone for the burgeoning field of semiconductor spintronics. It is typically assumed to manifest as a momentum-dependent…

We study the effect of the intrinsic (Rashba or Dresselhaus) spin-orbit interaction in superconductor--nanowire--superconductor (SNS) weak links in the presence of a spin-splitting field that can result either from an intrinsic exchange…

超导电性 · 物理学 2016-02-17 Juho Arjoranta , Tero T. Heikkila

We study electromagnetic interaction of a nanomagnet with a weak superconducting link. Equations that govern coupled dynamics of the two systems are derived and investigated numerically. We show that the presence of a small magnet in the…

介观与纳米尺度物理 · 物理学 2011-03-15 Liufei Cai , E. M. Chudnovsky

We present both theory and numerical-computation results for the transmission and reflection probability currents of a charged particle across a potential step in the presence of a Rashba spin-orbit interaction. By varying kinetic energy…

介观与纳米尺度物理 · 物理学 2022-03-22 Po-Hsin Shih , Godfrey Gumbs , Danhong Huang , Andrii Iurov , Yonatan Abranyos

We investigate theoretically the influence of the spin-orbit interaction of Rashba type on the magnetoresistance of a semiconducting ferromagnetic nanostructure with a laterally constrained domain wall. The domain wall is assumed sharp (on…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Barnas , J. Berakdar , V. I. Ivanov , W. Dobrowolski , V. F. Mitin

The effects of structural (Rashba) and bulk (Dresselhaus) spin-orbit interaction terms on the low-field magnetoresistance are investigated in high-quality two dimensional systems. The weak localization theory accounting for both of these…

介观与纳米尺度物理 · 物理学 2007-05-23 M. M. Glazov , L. E. Golub
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