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相关论文: Tuning of the Rashba effect in Pb quantum well sta…

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We investigate theoretically the spin states in InAs/AlSb/GaSb broken-gap quantum wells by solving the Kane model and the Poisson equation self-consistently. The spin states in InAs/AlSb/GaSb quantum wells are quite different from those…

介观与纳米尺度物理 · 物理学 2009-11-04 Jun Li , Wen Yang , Kai Chang

We review the effects of the pair spin-orbit interaction (PSOI) in Rashba materials. The PSOI is the electron-electron interaction component that depends on the spin and momentum of the electrons. Being produced by the Coulomb fields of…

强关联电子 · 物理学 2023-02-06 Yasha Gindikin , Vladimir A. Sablikov

We report on beating appearance in Shubnikov-de Haas oscillations in conduction band of 18-22nm HgTe quantum wells under applied top-gate voltage. Analysis of the beatings reveals two electron concentrations at the Fermi level arising due…

介观与纳米尺度物理 · 物理学 2019-02-20 A. A. Dobretsova , Z. D. Kvon , S. S. Krishtopenko , N. N. Mikhailov , S. A. Dvoretsky

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

We present a closed-form expression for the time dynamics of a balanced Fermi superfluid with s-wave pairing and Rashba spin-orbit (SO) coupling. Solving the associated self-consistency conditions for an initial number density given by a…

量子气体 · 物理学 2017-11-15 L. A. Toikka

Spin-Hall effect in ballistic 2D electron gas with Rashba-type spin-orbit coupling and smooth edge confinement is studied. We predict that the interplay of semiclassical electron motion and quantum dynamics of spins leads to several…

介观与纳米尺度物理 · 物理学 2009-05-15 P. G. Silvestrov , V. A. Zyuzin , E. G. Mishchenko

We propose a lateral spin-blockade device that uses an InGaAs/InAlAs double quantum well (DQW), where the values of the Rashba spin-orbit parameter $\alpha_{\rm R}$ are opposite in sign but equal in magnitude between the constituent quantum…

介观与纳米尺度物理 · 物理学 2013-04-26 S. Souma , H. Mukai , M. Ogawa , A. Sawada , S. Yokota , Y. Sekine , M. Eto , T. Koga

We show that Rashba spin-orbit coupling may result in an energy gap in the spectrum of electrons in a two-mode quantum wire if a suitable confining potential is chosen. This leads to a dip in the conductance and a spike in the spin current…

介观与纳米尺度物理 · 物理学 2014-02-03 K. E. Nagaev , A. S. Goremykina

The momentum dependent splitting of spin-bands in an electronic system is known as the "Rashba effect". Systems with the "Rashba effect" possess a Dirac point in momentum space. An electron in a cyclotron orbit enclosing that Dirac point in…

介观与纳米尺度物理 · 物理学 2019-08-15 Nand Kumar , Neha Wadehra , Ruchi Tomar , Sushanta Dattagupta , Sanjeev Kumar , S. Chakraverty

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

The spin-orbit interaction affects the electronic structure of solids in various ways. Topological insulators are one example where the spin-orbit interaction leads the bulk bands to have a non-trivial topology, observable as gapless…

材料科学 · 物理学 2012-02-15 M. S. Bahramy , B. -J. Yang , R. Arita , N. Nagaosa

The spin-orbit interaction couples the electrons' motion to their spin. Accordingly, passing a current in a material with strong spin-orbit coupling generates a transverse spin current (spin Hall effect, SHE) and vice-versa (inverse spin…

The spin-orbit -induced spin splitting of energy bands in low symmetry compounds (the Rashba Effect) has a long-standing relevance to spintronic applications and to the fundamental understanding of symmetry breaking in solids, yet the…

材料科学 · 物理学 2020-09-01 Carlos Mera Acosta , Elton Ogoshi , Adalberto Fazzio , Gustavo Dalpian , Alex Zunger

Following a previous work [Shen, Ma, Xie and Zhang, Phys. Rev. Lett. 92, 256603 (2004)] on the resonant spin Hall effect, we present detailed calculations of the spin Hall conductance in two-dimensional quantum wells in a strong…

介观与纳米尺度物理 · 物理学 2007-05-23 Shun-Qing Shen , Yun-Juan Bao , Michael Ma , X. C. Xie , Fu Chun Zhang

The effect of Rashba spin-orbit (SO) interaction on the hole states in a quantum dot is studied in the presence of an external magnetic field. We demonstrate here that the Rashba SO coupling has a profound effect on the energy spectrum of…

介观与纳米尺度物理 · 物理学 2009-10-27 Aram Manaselyan , Tapash Chakraborty

Vortex lattice structures to occur in Rashba non-centrosymmetric superconductors under a magnetic field parallel to the basal plane are studied by assuming a singlet Cooper pairing and taking account of both the paramagnetic and orbital…

超导电性 · 物理学 2009-11-13 Yuichi Matsunaga , Norihito Hiasa , Ryusuke Ikeda

One of the most fundamental phenomena and a reminder of the electron's relativistic nature is the Rashba spin splitting for broken inversion symmetry. Usually this splitting is a tiny relativistic correction, hardly discernible in…

材料科学 · 物理学 2015-02-23 Zhicheng Zhong , Liang Si , Qinfang Zhang , Wei-Guo Yin , Seiji Yunoki , Karsten Held

We study the spin-dependent electronic transport through a one-dimensional ballistic quantum wire in the presence of Rashba spin-orbit interaction. In particular, we consider the effect of the spin-orbit interaction resulting from the…

介观与纳米尺度物理 · 物理学 2009-11-13 J. E. Birkholz , V. Meden

In the quest for exotic superconducting pairing states, the Rashba effect, which lifts the electron-spin degeneracy as a consequence of strong spin-orbit interaction (SOI) under broken inversion symmetry, has attracted considerable…

The effects of competing orders, such as superconductivity and ferromagnetism, on a Fermi liquid are well established. A comprehensive understanding of such a competition in a metal whose Fermi surface has a non-trivial topology is yet to…

超导电性 · 物理学 2014-11-25 N. Mohanta , S. Bandopadhyay , S. Lal , A. Taraphder