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相关论文: Rashba spin splitting in different quantum channel…

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We find that the Rashba spin splitting is intrinsically a nonlinear function of the momentum, and the linear Rasha model may overestimate it significantly, especially in narrow-gap materials. A nonlinear Rashba model is proposed, which is…

介观与纳米尺度物理 · 物理学 2009-11-11 W. Yang , Kai Chang

In this review article we describe spin-dependent transport in materials with spin-orbit interaction of Rashba type. We mainly focus on semiconductor heterostructures, topological insulators, graphene and hybrid structures involving…

介观与纳米尺度物理 · 物理学 2015-09-29 Dario Bercioux , Procolo Lucignano

We calculate the current-voltage characteristic of a one-dimensional band insulator with magnetic field and Rashba spin-orbit coupling which is connected to nonmagnetic leads. Without spin-orbit coupling we find a complete spin-filtering…

介观与纳米尺度物理 · 物理学 2011-12-02 Thibaut Jonckheere , George Japaridze , Thierry Martin , Roland Hayn

The presence of spin-orbit coupling affects the spontaneously flowing persistent currents in mesoscopic conducting rings. Here we analyze their dependence on magnetic flux with emphasis on identifying possibilities to prove the presence and…

介观与纳米尺度物理 · 物理学 2007-05-23 Janine Splettstoesser , Michele Governale , Ulrich Zuelicke

In the absence of an external field, the Rashba spin-orbit interaction (SOI) in a two-dimensional electron gas in a semiconductor quantum well arises entirely from the screened electrostatic potential of ionized donors. We adjust the wave…

介观与纳米尺度物理 · 物理学 2010-06-09 Oleg Chalaev , G. Vignale

We perform an all-optical spin-dynamic measurement of the Rashba spin-orbit interaction in (110)-oriented GaAs/AlGaAs quantum wells. The crystallographic direction of quantum confinement allows us to disentangle the contributions to…

其他凝聚态物理 · 物理学 2007-08-01 P. S. Eldridge , W. J. H. Leyland , P. G. Lagoudakis , O. Z. Karimov , M. Henini , D. Taylor , R. T. Phillips , R. T. Harley

Larmor's theorem holds for magnetic systems that are invariant under spin rotation. In the presence of spin-orbit coupling this invariance is lost and Larmor's theorem is broken: for systems of interacting electrons, this gives rise to a…

介观与纳米尺度物理 · 物理学 2017-07-12 Shahrzad Karimi , Florent Baboux , Florent Perez , Carsten A. Ullrich , Grzegorz Karczewski , Tomasz Wojtowicz

We investigate theoretically the Rashba spin-orbit interaction in InAs/GaSb quantum wells(QWs). We find that the Rashba spin-splitting (RSS) depends sensitively on the thickness of the InAs layer. The RSS exhibits nonlinear behavior for…

介观与纳米尺度物理 · 物理学 2009-11-13 J. Li , Kai Chang , G. Q. Hai , K. S. Chan

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 theoretically explore the possibility of creating spin quantum entanglement in a system of two electrons confined respectively in two vertically coupled quantum dots in the presence of Rashba type spin-orbit coupling. We find that the…

介观与纳米尺度物理 · 物理学 2009-11-11 Nan Zhao , L. Zhong , Jia-Lin Zhu , C. P. Sun

The supercurrent of a quantum point contact coupled to a nanomagnet strongly depends on the dynamics of the nanomagnet's spin. We employ a fully microscopic model to calculate the transport properties of a junction coupled to a spin whose…

超导电性 · 物理学 2015-06-04 C. Holmqvist , W. Belzig , M. Fogelström

The cooperative effect of Rashba spin-orbit coupling (SOC) and Coulomb attraction in stabilizing topological spin-triplet excitonic condensates (ECs) in two-dimensional electron-hole systems in external magnetic field is investigated by…

强关联电子 · 物理学 2026-03-11 Quoc-Huy Ninh , Huu-Nha Nguyen , Van-Nham Phan

We theoretically studied the in-plane tunneling spectroscopy of the hybrid structure composed of a metal and a semiconductor with Rashba spin-orbit coupling. We found that the energy spacing between two distinct features in the conductance…

介观与纳米尺度物理 · 物理学 2008-05-28 B Srisongmuang , P Pairor , M Berciu

A Rashba type spin-orbit splitting is found for quantum well states formed in ultrathin Pb films on Si(111). The resulting momentum splitting is comparable to what is found for semiconductor heterostructures. The splitting shows no coverage…

其他凝聚态物理 · 物理学 2009-07-01 Hugo Dil , Fabian Meier , Jorge Lobo-Checa , Luc Patthey , Gustav Bihlmayer , Juerg Osterwalder

The interplay between spin and charge degrees of freedom in low-dimensional systems is a cornerstone of modern spintronics, where achieving all-electrical control of spin currents is a major goal. Spin-orbit interactions provide a promising…

Exploiting inversion symmetry breaking (ISB) in systems with strong spin-orbit coupling promises control of spin through electric fields - crucial to achieve miniaturization in spintronic devices. Delivering on this promise requires a…

介观与纳米尺度物理 · 物理学 2021-04-14 Chi Ming Yim , Dibyashree Chakraborti , Luke C. Rhodes , Seunghyun Khim , Andrew P. Mackenzie , Peter Wahl

In a ferromagnetic metal layer, the coupled charge and spin diffusion equations are obtained in the presence of both Rashba spin-orbit interaction and magnetism. The mis-alignment between the magnetization and the non-equilibrium spin…

介观与纳米尺度物理 · 物理学 2012-03-14 Xuhui Wang , Aurelien Manchon

We study the effects of Rashba spin-orbit coupling on two-dimensional Rydberg exciton systems. Using analytical and numerical arguments we demonstrate that this coupling considerably modifies the wave functions and leads to a level…

介观与纳米尺度物理 · 物理学 2018-05-23 V. A. Stephanovich , E. Ya. Sherman , N. T. Zinner , O. V. Marchukov

We investigate the electronic transport in a quantum wire with localized Rashba interaction. The Rashba field forms quasi-bound states which couple to the continuum states with an opposite spin direction. The presence of this Rashba dot…

介观与纳米尺度物理 · 物理学 2009-11-11 Rosa Lopez , David Sanchez , Llorens Serra

The well-known experimentally observed \textit{sp}-derived Au(111) Shockley surface states with Rashba spin splitting are perfectly fit by an effective tight-binding model, considering a two-dimensional hexagonal lattice with…

介观与纳米尺度物理 · 物理学 2008-11-15 Ming-Hao Liu , Son-Hsien Chen , Ching-Ray Chang