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We study the local equilibrium properties of two-dimensional electron gases at high magnetic fields in the presence of random smooth electrostatic disorder, Rashba spin-orbit coupling, and the Zeeman interaction. Using a systematic magnetic…

介观与纳米尺度物理 · 物理学 2014-04-29 Daniel Hernangomez-Perez , Serge Florens , Thierry Champel

We consider the magnetic response of a two-dimensional electron gas (2DEG) with both Rashba and Dresselhaus spin-orbit coupling to a microwave excitation. We generalize the results of [A. Shnirman and I. Martin, Europhys. Lett. 78, 27001…

介观与纳米尺度物理 · 物理学 2009-01-22 Mikhail Pletyukhov , Alexander Shnirman

The structural inversion asymmetry-induced spin-orbit interaction of conduction band electrons in zinc-blende and wurtzite semiconductor structures is analysed allowing for a three-dimensional (3D) character of the external electric field…

材料科学 · 物理学 2010-12-30 Eduard Takhtamirov , Roderick V. N. Melnik

Effects associated with the interference of electron waves around a magnetic point defect in two-dimensional electron gas with combined Rashba-Dresselhaus spin-orbit interaction in the presence of a parallel magnetic field are theoretically…

介观与纳米尺度物理 · 物理学 2019-06-17 I. V. Kozlov , Yu. A. Kolesnichenko

The effects of interplay between spin-orbit coupling and Zeeman splitting on weak localisation and universal conductance fluctuations in lateral semiconductor quantum dots are analysed: All possible symmetry classes of corresponding random…

介观与纳米尺度物理 · 物理学 2009-11-07 I. L. Aleiner , Vladimir I. Fal'ko

We analyze new spin effects in current-carrying state of superconductor-2D electron gas-superconductor (S-2DEG-S) device with spin-polarized nuclei in 2DEG region. The hyperfine interaction of 2D electrons with nuclear spins, described by…

超导电性 · 物理学 2014-02-11 E. V. Bezuglyi , A. S. Rozhavsky , I. D. Vagner , P. Wyder

Electronic transport in a one-dimensional mesoscopic ring threaded by a magnetic flux is studied in presence of Rashba and Dresselhaus spin-orbit interactions. A completely analytical technique within a tight-binding formalism unveils the…

介观与纳米尺度物理 · 物理学 2011-08-30 Santanu K. Maiti , Moumita Dey , Shreekantha Sil , Arunava Chakrabarti , S. N. Karmakar

We consider the motion of electrons through a mesoscopic ring in the presence of spin-orbit interaction, Zeeman coupling, and magnetic flux. The coupling between the spin and the orbital degrees of freedom results in the geometric and the…

介观与纳米尺度物理 · 物理学 2009-10-30 Ya-Sha Yi , Tie-Zheng Qian , Zhao-Bin Su

We theoretically consider spin pumping in a junction between a ferromagnetic insulator (FI) and a two-dimensional electron gas (2DEG) in which the Rashba and Dresselhaus spin-orbit interactions coexist. Using second-order perturbation…

介观与纳米尺度物理 · 物理学 2021-08-10 M. Yama , M. Tatsuno , T. Kato , M. Matsuo

One-body mechanisms of spin splitting of the energy spectrum of 2D electrons in a one-side doped (001) GaAs/Al$_x$Ga$_{1-x}$As quantum well have been studied theoretically and experimentally. The interfacial spin splitting has been shown to…

介观与纳米尺度物理 · 物理学 2014-10-10 Zh. A. Devizorova , A. V. Shchepetilnikov , Yu. A. Nefyodov , V. A. Volkov , I. V. Kukushkin

We study the long-time decay of fourth-order electron spin correlation functions for an isolated singly charged semi-conductor quantum dot. The electron spin dynamics is governed by the applied external magnetic field as well as the…

介观与纳米尺度物理 · 物理学 2017-10-23 Nina Fröhling , Frithjof B. Anders

Recently proposed local-correlation-driven pairing mechanism, describing ferromagnetic phases (FM1 and FM2) coexisting with spin-triplet superconductivity (SC) within a single orbitally degenerate Anderson lattice model, is extended to the…

强关联电子 · 物理学 2019-05-15 M. Fidrysiak , D. Goc-Jagło , E. Kądzielawa-Major , P. Kubiczek , J. Spałek

The aim of this work is to describe the spin magnetization of graphene with Rashba spinorbit coupling and Zeeman effect. It is shown that the magnetization depends critically on the spin-orbit coupling l that is controlled with an external…

强关联电子 · 物理学 2017-08-28 Federico Escudero , Lucas Sourrouille , Juan Sebastián Ardenghi , Paula Jasen

Rashba and linear Dresselhaus interactions are believed to yield dominant contribution to the spin splitting of two-dimensional electrons in the quantum wells based on A$_3$B$_5$ compounds. We show that the interfacial spin-orbit…

介观与纳米尺度物理 · 物理学 2018-03-12 Zh. A. Devizorova , V. A. Volkov

We investigate the effects of an in-plane magnetic field on the weak antilocalization signature of near-surface quantum wells lacking bulk and inversion symmetry. The measured magnetoconductivity exhibits a strong anisotropy with respect to…

We investigate the Zeeman splitting of two-dimensional electrons in an asymmetric silicon quantum well, by electron-spin-resonance (ESR) experiments. Applying a small dc current we observe a shift in the resonance field due to the…

其他凝聚态物理 · 物理学 2009-11-11 Zbyslaw Wilamowski , Hans Malissa , Friedrich Schäffler , Wolfgang Jantsch

We consider a one-dimensional spin-orbit-coupled nanowire quantum dot, driven by external electric and magnetic fields, and theoretically formulate an electric mechanism to interfere its electron orbits. Owing to the existence of spin-orbit…

量子物理 · 物理学 2016-12-20 Jingtao Fan , Yuansen Chen , Gang Chen , Liantuan Xiao , Suotang Jia , Franco Nori

We demonstrate in theory that it is possible to all-electrically manipulate the RKKY interaction in a quasi-one-dimensional electron gas embedded in a semiconductor heterostructure, in the presence of Rashba and Dresselhaus spin-orbit…

介观与纳米尺度物理 · 物理学 2010-09-07 Jia-Ji Zhu , Kai Chang , Ren-Bao Liu , Hai-Qing Lin

We study the frequency dependent spin- and charge- conductivity tensors of a two-dimensional electron gas (2DEG) with Rashba and Dresselhaus spin-orbit interaction. We show that the angular anisotropy of the spin-splitting energy induced by…

介观与纳米尺度物理 · 物理学 2009-11-11 Jesús A. Maytorena , Catalina López-Bastidas , Francisco Mireles

A two-dimensional electron gas exposed to a tilted magnetic field is considered with the Rashba spin-orbit interaction and the Zeeman effect. An exact solution for the eigenvalues were obtained assuming that two opposite spin states of…

介观与纳米尺度物理 · 物理学 2012-02-22 Rayda Gammag , Cristine Villagonzalo