中文
相关论文

相关论文: Experimental realization of a ballistic spin inter…

200 篇论文

We predict the giant ferroelectric control of interfacial properties of Ni/HfO2, namely, (i) the magnetocrystalline anisotropy and (ii) the inverse spin and orbital Rashba effects. The reversible control of magnetic properties using…

材料科学 · 物理学 2024-12-09 Armando Pezo , Andrés Saul , Aurélien Manchon , Rémi Arras

We propose a fast and accurate spin initialization method for a single electron trapped in an electrostatic quantum dot. The dot is created in a nanodevice composed of a catalytically grown indium antimonide (InSb) nanowire and nearby gates…

介观与纳米尺度物理 · 物理学 2019-03-08 S. Bednarek , J. Pawłowski , M. Górski , G. Skowron

We study the spin polarization induced by a current flow in clean two dimensional electron gases with Rashba spin-orbit coupling. This geometric effect originates from special properties of the electron's scattering at the edges of the…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Reynoso , Gonzalo Usaj , C. A. Balseiro

Strong spin-orbit coupling in noncentrosymmetric materials and interfaces results in remarkable physical phenomena, such as nontrivial spin textures, which may exhibit Rashba, Dresselhaus, and other intricated configurations. This provides…

介观与纳米尺度物理 · 物理学 2021-11-15 Thorsten Aull , Igor V. Maznichenko , Sergey Ostanin , Ersoy Şaşıoğlu , Ingrid Mertig

Following the early theoretical descriptions of the spin-orbit-induced spin torque [S.G. Tan et al., arXiv:0705.3502 (2007); S.G.Tan et al., Ann. Phys.326, 207 (2011)], the first experimental observation of such effect was reported by L. M.…

介观与纳米尺度物理 · 物理学 2015-03-13 Ji Chen , Mansoor Bin Abdul Jalil , Seng Ghee Tan

We consider Rashba spin-orbit effects on spin transport driven by an electric field in semiconductor quantum wells. We derive spin diffusion equations that are valid when the mean free path and the Rashba spin-orbit interaction vary on…

介观与纳米尺度物理 · 物理学 2009-11-13 Arne Brataas , A. G. Mal'shukov , Yaroslav Tserkovnyak

A design for a quantum gate performing transformations of a single electron spin is presented. The spin rotations are performed by the electron going around the closed loops in a gated semiconductor device. We demonstrate the operation of…

介观与纳米尺度物理 · 物理学 2008-11-25 S. Bednarek , B. Szafran

We obtain analytic formulas for the frequency-dependent spin-Hall conductivity of a two-dimensional electron gas (2DEG) in the presence of impurities, linear spin-orbit Rashba interaction, and external magnetic field perpendicular to the…

介观与纳米尺度物理 · 物理学 2009-11-13 E. M. Hankiewicz , G. Vignale

We report distinct nonanalytic signatures in the spin-orbit entanglement of a 2D electron gas with Rashba interactions at integer values of the filling factor and at certain level crossings. The accompanying sharp changes in the bulk…

强关联电子 · 物理学 2016-05-16 Rona F. Barbarona , Francis N. C. Paraan

We propose a spin transistor using only non-magnetic materials that exploits the characteristics of bulk inversion asymmetry (BIA) in (110) symmetric quantum wells. We show that extremely large spin splittings due to BIA are possible in…

材料科学 · 物理学 2009-11-10 K. C. Hall , Wayne H. Lau , K. Gundogdu , Michael E. Flatte , Thomas F. Boggess

The spin-sensitive charge oscillation, controlled by an external magnetic field, was recently proposed as a mechanism of transformations of qubits, defined as two-electron spin-charge Wannier molecules in a square quantum dot. The paper…

介观与纳米尺度物理 · 物理学 2020-07-30 Ambroz Kregar , Anton Ramsak

In spintronic devices, the two main approaches to actively control the electrons' spin degree of freedom involve either static magnetic or electric fields. An alternative avenue relies on the application of optical fields to generate spin…

We consider the electronic transport through a Rashba quantum dot coupled to ferromagnetic leads. We show that the interference of localized electron states with resonant electron states leads to the appearance of the Fano-Rashba effect.…

介观与纳米尺度物理 · 物理学 2009-11-13 P. A. Orellana , M. Amado , F. Dominguez-Adame

Coherent electron spin dynamics in 10-nm-wide InGaAs/InAlAs quantum wells is studied from 10 K to room temperature using time-resolved Kerr rotation. The spin lifetime exceeds 1 ns at 10 K and decreases with temperature. By varying the…

介观与纳米尺度物理 · 物理学 2016-11-03 T. Henn , L. Czornomaz , G. Salis

We consider the effect of the Rashba spin-orbital interaction and space charge in a ferromagnet-insulator/semiconductor/insulator-ferromagnet junction where the spin current is severely affected by the doping, band structure and charge…

介观与纳米尺度物理 · 物理学 2009-11-10 Wei Wu , Jinbin Li , Yue Yu , S. T. Chui

Graphene, as a material with a small intrinsic spin-orbit interaction of approximately 1 $\mu$eV, has a limited application in spintronics. Adsorption of graphene on the surfaces of heavy-metals was proposed to induce the strong…

材料科学 · 物理学 2018-12-27 Elena Voloshina , Yuriy Dedkov

We measure simultaneously the in-plane electron g-factor and spin relaxation rate in a series of undoped inversion-asymmetric (001)-oriented GaAs/AlGaAs quantum wells by spin-quantum beat spectroscopy. In combination the two quantities…

介观与纳米尺度物理 · 物理学 2011-07-11 P. S. Eldridge , J. Hübner , S. Oertel , R. T. Harley , M. Henini , M. Oestreich

Rashba effect describes how electrons moving in an electric field experience a momentum dependent magnetic field that couples to the electron angular momentum (spin). This physical phenomenon permits the generation of spin polarization from…

介观与纳米尺度物理 · 物理学 2018-05-16 Florent Auvray , Jorge Puebla , Mingran Xu , Bivas Rana , Daisuke Hashizume , Yoshichika Otani

Using the recently reported mode locking effect we demonstrate a highly robust control of electron spin coherence in an ensemble of (In,Ga)As quantum dots during the single spin coherence time. The spin precession in a transverse magnetic…

An analytical expression is derived for the conductance modulation of a ballistic two dimensional Datta-Das Spin Field Effect Transistor (SPINFET) as a function of gate voltage. Using this expression, we show that the recently observed…

介观与纳米尺度物理 · 物理学 2015-05-18 S. Bandyopadhyay