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Related papers: Spin-phonon relaxation from a universal \emph{ab i…

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We calculate the spin relaxation rates in a parabolic InSb quantum dots due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 C. L. Romano , G. E. Marques , L. Sanz , A. M. Alcalde

Electron spin dynamics in intrinsic bulk Indium Phosphide (InP) semiconductor is studied by time resolved pump probe reflectivity (TRPPR) technique using the co- and counter-circularly polarized femtosecond pulses at room temperature and 70…

Optics · Physics 2015-05-18 Hong Ma , Zuanming Jin , Lihua Wang , Guohong Ma

We calculate the spin relaxation rates in a parabolic InSb quantum dots due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov…

Mesoscale and Nanoscale Physics · Physics 2008-01-15 A. M. Alcalde , C. L. Romano , L. Sanz , G. E. Marques

The relaxation time of a classical spin interacting with a large conduction-electron system is computed for a weak magnetic field, which initially drives the spin out of equilibrium. We trace the spin and the conduction-electron dynamics on…

Mesoscale and Nanoscale Physics · Physics 2020-09-29 Michael Elbracht , Michael Potthoff

Electron spin relaxation due to the D'yakonov-Perel' mechanism is investigated in bilayer graphene with only the lowest conduction band being relevant. The spin-orbit coupling is constructed from the symmetry group analysis with the…

Mesoscale and Nanoscale Physics · Physics 2013-05-14 L. Wang , M. W. Wu

A formula for the electron spin relaxation rate of an electron-phonon system is derived using a new spring-loop diagram method. The result contains the distribution functions for the electrons and phonons properly. Therefore, all the spin…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Nam Lyong Kang , Sang Don Choi

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…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 N. S. Averkiev , L. E. Golub , M. Willander

In order to describe correctly the interplay of extrinsic and intrinsic spin-orbit mechanisms to the spin Hall effect, it is necessary to consider different sources of spin relaxation. We take into account the spin relaxation time…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Roberto Raimondi , Peter Schwab

Magnetic molecules have played a central role in the development of magnetism and coordination chemistry and their study keeps leading innovation in cutting-edge scientific fields such as magnetic resonance, magnetism, spintronics, and…

Materials Science · Physics 2022-02-09 Alessandro Lunghi

We comment on the conclusion by Ma et al. [Appl. Phys. Lett. {\bf 94}, 241112 (2009)] that the Elliott-Yafet mechanism is more important than the D'yakonov-Perel' mechanism at high carrier density in intrinsic bulk CdTe at room temperature.…

Mesoscale and Nanoscale Physics · Physics 2010-04-01 J. H. Jiang , M. W. Wu

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…

Materials Science · Physics 2011-11-17 Matthew D. Mower , G. Vignale , I. V. Tokatly

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…

Mesoscale and Nanoscale Physics · Physics 2012-09-11 Mathias Diez , Guido Burkard

Understanding the spin dynamics in low-temperature settings is crucial to designing and optimizing molecular spin systems for use in emerging quantum technologies. At low temperatures, irreversible loss occurs due to ensemble dynamics…

Quantum Physics · Physics 2024-11-14 Timothy J. Krogmeier , Anthony W. Schlimgen , Kade Head-Marsden

We employ the method of the theory of open quantum systems to analyze spin relaxation and decoherence in semiconductors in the presence of a magnetic field. We derive a set of Bloch equations for electron spin with a fully microscopic…

Condensed Matter · Physics 2007-05-23 Vadim I. Puller , Lev G. Mourokh , Norman J. M. Horing , Anatoly Yu. Smirnov

We propose an intrinsic spin scattering mechanism in graphene originated by the interplay of atomic spin-orbit interaction and the local curvature induced by flexural distortions of the atomic lattice. Starting from a multiorbital…

Mesoscale and Nanoscale Physics · Physics 2013-09-25 S. Fratini , D. Gosálbez-Martínez , P. Merodio Cámara , J. Fernández-Rossier

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…

Mesoscale and Nanoscale Physics · Physics 2009-11-05 Jun Li , Kai Chang , F. M. Peeters

Optical pump-probe measurements of spin-dynamics at temperatures down to 1.5K are described for a series of (001)-oriented GaAs/AlGaAs quantum well samples containing high mobility two-dimensional electron gases (2DEGs). For well widths…

Other Condensed Matter · Physics 2009-11-13 W. J. H. Leyland , R. T. Harley , M. Henini , D. Taylor , A. J. Shields , I. Farrer , D. A. Ritchie

The spin-relaxation time for electrons in the impurity band of semiconductors with wurtzite crystal structure is determined. The effective Dresselhaus spin-orbit interaction Hamiltonian is taken as the source of the spin relaxation at low…

Mesoscale and Nanoscale Physics · Physics 2017-09-27 Pablo I. Tamborenea , Thomas Wellens , Dietmar Weinmann , Rodolfo A. Jalabert

W. Apel and Yu.A. Bychkov have recently considered the spin relaxation in a 2D quantum Hall system for the filling factor close to unity [PRL v.82, 3324 (1999)]. The authors considered only one spin flip mechanism (direct spin-phonon…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Alexander V. Khaetskii

Carrier density dependence of electron spin relaxation in an intrinsic GaAs quantum well is investigated at room temperature using time-resolved circularly polarized pump-probe spectroscopy. It is revealed that the spin relaxation time…

Materials Science · Physics 2008-10-02 L. H. Teng , P. Zhang , T. S. Lai , M. W. Wu