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相关论文: Temperature Dependence of Rashba Spin-orbit Coupli…

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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

We study the tunability of the spin-orbit interaction in a two-dimensional electron gas with a front and a back gate electrode by monitoring the spin precession frequency of drifting electrons using time-resolved Kerr rotation. The Rashba…

介观与纳米尺度物理 · 物理学 2009-07-14 M. Studer , G. Salis , K. Ensslin , D. C. Driscoll , A. C. Gossard

We explore the impact of a Rashba-type spin-orbit interaction in the conduction band on the spin dynamics of hot excitons in diluted magnetic semiconductor quantum wells. In materials with strong spin-orbit coupling, we identify parameter…

介观与纳米尺度物理 · 物理学 2019-07-30 Florian Ungar , Pablo Ignacio Tamborenea , Vollrath Martin Axt

Although most theoretical calculations of quantum wells with non-square profiles assume that material composition is varied continuously, it is more common in experiment to grow digital alloys. We compare the Rashba spin-orbit interaction…

介观与纳米尺度物理 · 物理学 2011-05-11 Joseph Pingenot , Kieran Mullen

We report on the quantum interference and spin accumulation on double quantum dots with Rashba spin-orbit coupling and electron-electron interaction, based on the Keldysh nonequilibrium Green function formalism. It is shown that Rashba…

介观与纳米尺度物理 · 物理学 2009-11-13 Kuo-Wei Chen , Ching-Ray Chang

The electron spin dynamics in (111)-oriented GaAs/AlGaAs quantum wells is studied by timeresolved photoluminescence spectroscopy. By applying an external field of 50 kV/cm a two-order of magnitude increase of the spin relaxation time can be…

材料科学 · 物理学 2015-05-28 A. Balocchi , Q. H. Duong , P. Renucci , B. Liu , C. Fontaine , T. Amand , D. Lagarde , X. Marie

We present the exact wave functions and energy levels of electron in a two-dimensional circular quantum dot in the presence of the Rashba spin-orbit interaction. The confinement is described by the realistic potential well of finite depth.

数学物理 · 物理学 2009-11-17 V. V. Kudryashov

In this paper we develop a quantum field approach to reveal the thermodynamic properties of the trapped BEC with the equal Rashba and Dresselhaus spin-orbit couplings. In the experimentally-feasible regime, the phase transition from the…

量子气体 · 物理学 2015-06-11 Jinling Lian , Yuanwei Zhang , J. -Q. Liang , Jie Ma , Gang Chen , Suotang Jia

Magneto-transport properties of a two-dimensional electron gas in a chain of planar quantum rings are investigated under the Rashba spin-orbit interaction and a transverse homogeneous magnetic field. A modulation potential function models…

介观与纳米尺度物理 · 物理学 2025-07-30 Armen Harutyunyan

We calculate the finite-temperature conductance of clean, weakly interacting one-dimensional quantum wires subject to Rashba spin-orbit coupling and a magnetic field. For chemical potentials near the center of the Zeeman gap ($\mu = 0$),…

介观与纳米尺度物理 · 物理学 2014-01-07 Thomas L. Schmidt

An asymmetric triangular potential well provides the simplest model for the confinement of mobile electrons at the interface between two insulating oxides, such as LaAlO_3 and SrTiO_3 (LAO/STO). These electrons have been recently shown to…

介观与纳米尺度物理 · 物理学 2013-06-13 Lorien H. Hayden , R. Raimondi , M. E. Flatte' , G. Vignale

Our recent study [Phys. Rev. B 103, 085309 (2021)] verified the existence of $\bf{k}$-linear Rashba spin-orbit coupling (SOC) of two-dimensional hole gases in quantum wells (QWs) which originates from a combination of heavy-hole-light-hole…

介观与纳米尺度物理 · 物理学 2022-03-17 Jia-Xin Xiong , Shan-Guan , Jun-Wei Luo , Shu-Shen Li

We investigate the zero-temperature properties of a quasi-ideal Fermi gas with Rashba spin-orbit coupling. We find that the spin-orbit term strongly affects the speeds of zero sound and first sound in the Fermi gas, due to the presence of a…

量子气体 · 物理学 2014-06-03 Luca Salasnich

We present an analytical solution to the Schr\"odinger equation for electron in a two-dimensional circular quantum dot in the presence of both external magnetic field and the Rashba spin-orbit interaction. The confinement is described by…

数学物理 · 物理学 2009-11-19 V. V. Kudryashov

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such control mechanisms to coherent spin-dependent transport in one- and two-dimensional rings subject to Rashba…

介观与纳米尺度物理 · 物理学 2009-11-10 Diego Frustaglia , Klaus Richter

In a ferromagnetic heterostructure, the interplay between a Rashba spin-orbit coupling and an exchange field gives rise to a current-driven spin torque. In a realistic device setup, we investigate the Rashba spin torque in the diffusive…

介观与纳米尺度物理 · 物理学 2015-06-15 Christian Ortiz Pauyac , Xuhui Wang , Mairbek Chshiev , Aurelien Manchon

We theoretically investigate a two-dimensional harmonically-trapped gas of identical atoms with Rashba spin-orbit coupling and no interatomic interactions. In analogy with the spin Hall effect in uniform space, the gas exhibits a spin Hall…

量子气体 · 物理学 2017-11-28 J. Armaitis , J. Ruseckas , H. T. C. Stoof , R. A. Duine

The Rashba spin-orbit coupling arising from structure inversion asymmetry couples spin and momentum degrees of freedom providing a suitable (and very intensively investigated) environment for spintronic effects and devices. Here we show…

介观与纳米尺度物理 · 物理学 2015-10-28 Goetz Seibold , Sergio Caprara , Marco Grilli , Roberto Raimondi

In this article we study the spin and tunneling dynamics as a function of magnetic field in a one-dimensional GaAs double quantum dot with both the Dresselhaus and Rashba spin-orbit coupling. In particular we consider different spatial…

介观与纳米尺度物理 · 物理学 2017-10-11 Madhav Singh , Pradeep K Jha , Aranya B Bhattacherjee

Both magnetism and spin-orbit coupling in systems with broken inversion symmetry lift the spin degeneracy of electronic bands, but the consequences of interplay between these mechanisms remain poorly understood. Here, we show that ultrathin…