2003/01/27 by M. M. Glazov, E. L. Ivchenko, Glazov, M. M. +1
Materials Science · Physics and Astronomy · #Advanced Chemical Physics Studies #Disordered Systems and Neural Networks (cond-mat.dis-nn) #Electronic and Structural Properties of Oxides #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum and electron transport phenomena #cond-mat.dis-nn #cond-mat.mes-hall
paper · pdf · doi:10.48550/arxiv.cond-mat/0301519
8 pages, no figures, Proceedings of NATO Advanced Research Workshop "Optical Properties of 2D Systems with Interacting Electrons" St.-Petersburg, Russia, June 13-16, (2002)
arxiv created 2003/01/27 · openalex publication_date 2003/01/27 · arxiv updated 2009/11/30 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
The D'yakonov-Perel' mechanism of spin relaxation is connected with the spin splitting of the electron dispersion curve in crystals lacking a center of symmetry. In a two-dimensional noncentrosymmetric system, e.g. quantum well or heterojunction, the spin splitting is a linear function of \bm k, at least for small values of \bm k. We demonstrate that the spin relaxation time τs due to the spin splitting is controlled not only by momentum relaxation processes as widely accepted but also by electron-electron collisions which make no effect on the electron mobility. In order to calculate the time τs taking into account the electron-electron scattering we have solved the two-dimensional kinetic equation for the electron spin density matrix. We show how the theory can be extended to allow for degenerate distribution of the spin-polarized two-dimensional electron gas.