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相关论文: D'yakonov-Perel' spin relaxation under electron-el…

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The D'yakonov-Perel' spin relaxation mechanism in n-doped GaAs/AlGaAs quantum wells (QWs) has been studied both theoretically and experimentally. The temperature dependence of the spin relaxation time has been calculated for arbitrary…

介观与纳米尺度物理 · 物理学 2007-05-23 M. M. Glazov , E. L. Ivchenko , M. A. Brand , O. Z. Karimov , R. T. Harley

The D'yakonov-Perel' spin relaxation induced by the spin-orbit interaction is examined in disordered two-dimensional electron gas. It is shown that, because of the electron-electron interactions different spin relaxation rates can be…

无序系统与神经网络 · 物理学 2010-11-16 Alexander Punnoose , Alexander M. Finkel'stein

We present an analytical study of the D'yakonov-Perel' spin relaxation time for degenerate electrons in a photo-excited electron-hole liquid in intrinsic semiconductors exhibiting a spin-split band structure. The D'yakonov-Perel' spin…

材料科学 · 物理学 2011-11-17 Matthew D. Mower , G. Vignale , I. V. Tokatly

In inversion asymmetric semiconductors, spin-orbit interactions give rise to very effective relaxation mechanisms of the electron spin. Recent work, based on the dimensionally constrained D'yakonov Perel' mechanism, describes increasing…

介观与纳米尺度物理 · 物理学 2015-05-18 Alexander W. Holleitner

We have investigated spatio-temporal kinetics of electron spin polarization in semiconductor narrow 2D strip and explored the ability to manipulate spin relaxation. Information about spin of the conduction electrons and mechanisms of spin…

介观与纳米尺度物理 · 物理学 2015-06-25 A. A. Kiselev , K. W. Kim

Electron spin relaxation caused by the D'yakonov-Perel' mechanism is investigated theoretically in asymmetrical A$_3$B$_5$ heterostructures. The total spin relaxation anisotropy is demonstrated for a wide range of structure parameters and…

介观与纳米尺度物理 · 物理学 2007-05-23 N. S. Averkiev , L. E. Golub , M. Willander

The electron spin dynamics in an optically excited narrow quantum well is studied, where the electron spins precess in a k-dependent magnetic field while the electrons scatter at localized impurities. For the resulting spin decay, which is…

介观与纳米尺度物理 · 物理学 2017-05-31 Michael Cosacchi , Moritz Cygorek , Florian Ungar , Vollrath Martin Axt

We study evolution of electron spin coherence having non-homogeneous direction of spin polarization vector in semiconductor heterostructures. It is found that the electron spin relaxation time due to the D'yakonov-Perel' relaxation…

介观与纳米尺度物理 · 物理学 2007-05-23 Yuriy V. Pershin

D'yakonov-Perel' (DP) mechanism describes the dynamics of non-equilibrium spin distribution in a two-dimensional (2D) system in the presence of Rashba spin-orbit coupling. In this paper, we study the anisotropy of spin relaxation via the DP…

介观与纳米尺度物理 · 物理学 2018-11-27 Seyed M. Farzaneh , Shaloo Rakheja

A fully microscopic theory of electron spin relaxation by the D'yakonov-Perel' type spin-orbit coupling is developed for a semiconductor quantum well with a magnetic field applied in the growth direction of the well. We derive the Bloch…

凝聚态物理 · 物理学 2009-11-07 Vadim I. Puller , Lev G. Mourokh , Norman J. M. Horing , Anatoly Yu. Smirnov

We apply the D'yakonov-Perel' (DP) formalism to [111]-grown zincblende quantum wells (QWs) to compute the spin lifetimes of electrons in the two-dimensional electron gas. We account for both bulk and structural inversion asymmetry (Rashba)…

介观与纳米尺度物理 · 物理学 2007-05-23 X. Cartoixa , D. Z. -Y. Ting , Y. -C. Chang

The D'yakonov-Perel' mechanism, intimately related to the spin splitting of the electronic states, usually dominates the spin relaxation in zinc blende semiconductor quantum structures. Previously it has been formulated for the two limiting…

介观与纳米尺度物理 · 物理学 2009-11-10 J. Kainz , U. Rossler , R. Winkler

We investigate theoretically the D'yakonov-Perel' spin relaxation time by solving the eight-band Kane model and Poisson equation self-consistently. Our results show distinct behavior with the single-band model due to the anomalous…

介观与纳米尺度物理 · 物理学 2009-11-05 Jun Li , Kai Chang , F. M. Peeters

In this work, the spin relaxation accompanying the spin diffusion in symmetric Si/SiGe quantum wells without the D'yakonov-Perel' spin-relaxation mechanism is calculated from a fully microscopic approach. The spin relaxation is caused by…

材料科学 · 物理学 2009-02-07 P. Zhang , M. W. Wu

Spin relaxation due to the D'yakonov-Perel' mechanism is intimately related with the spin splitting of the electronic states. We determine the spin relaxation rates from anisotropic spin splittings of electron subbands in n-(001)…

凝聚态物理 · 物理学 2009-11-10 J. Kainz , U. Roessler , R. Winkler

The electron spin dynamics in multilayer GaAs/AlGaAs quantum wells, containing high-mobility dense two-dimensional electron gases, have been studied using time-resolved Kerr rotation and resonant spin amplification techniques. The electron…

介观与纳米尺度物理 · 物理学 2018-08-15 S. Ullah , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

We study the spin-relaxation time in materials where a large spin-orbit coupling (SOC) is present which breaks the spatial inversion symmetry. Such a spin-orbit coupling is realized in zincblende structures and heterostructures with a…

强关联电子 · 物理学 2017-10-23 Lénárd Szolnoki , Annamária Kiss , Balázs Dóra , Ferenc Simon

The longitudinal spin relaxation time, T1, in a Si/SiGe quantum well is determined from the saturation of the ESR signal. We find values of a few microseconds. Investigations of T1 as a function of Fermi energy, concentration of scattering…

软凝聚态物质 · 物理学 2007-05-23 Z. Wilamowski , W. Jantsch

We calculate the spin relaxation time of mobile electrons due to spin precession between random impurity scattering (D'yakonov-Perel' mechanism) in electrically gated bilayer graphene analytically and numerically. Due to the trigonal…

介观与纳米尺度物理 · 物理学 2012-09-11 Mathias Diez , Guido Burkard

The spin dynamics and spin relaxation of itinerant electrons in quantum wires with spin-orbit coupling is reviewed. We give an introduction to spin dynamics, and review spin-orbit coupling mechanisms in semiconductors. The spin diffusion…

介观与纳米尺度物理 · 物理学 2010-12-17 Paul Wenk , Stefan Kettemann
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