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arXiv · 0910.0066

Spin relaxation due to random Rashba spin-orbit coupling in GaAs (110) quantum wells

Y. Zhou·M. W. Wu
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Abstract

We investigate the spin relaxation due to the random Rashba spin-orbit coupling in symmetric GaAs (110) quantum wells from the fully microscopic kinetic spin Bloch equation approach. All relevant scatterings, such as the electron-impurity, electron--longitudinal-optical-phonon, electron--acoustic-phonon, as well as electron-electron Coulomb scatterings are explicitly included. It is shown that our calculation reproduces the experimental data by Müller {\em et al.} [Phys. Rev. Lett. {\bf 101}, 206601 (2008)] for a reasonable choice of parameter values. We also predict that the temperature dependence of spin relaxation time presents a peak in the case with low impurity density, which originates from the electron-electron Coulomb scattering.

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Y. Zhou, M. W. Wu. 2010-02-20. Spin relaxation due to random Rashba spin-orbit coupling in GaAs (110) quantum wells. https://doi.org/10.1209/0295-5075%2F89%2F57001

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