TITLE:
Density Dependence of Electron Spin Relaxation Time in GaA
AUTHORS:
Nam Lyong Kang
KEYWORDS:
Spintronics, Electron-Phonon Interaction, Projection-Reduction Method
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.6 No.6,
June
27,
2016
ABSTRACT: The electron density dependence of the electron spin relaxation time in a system of electrons interacting with phonons through phonon-modulated spin-orbit coupling was calculated using the formula for electron spin resonance derived by the projection-reduction method. The electron spin relaxation time in GaAs increased with increasing electron density, and the electron density was found to affect the electron spin relaxation differently according to temperature. The electron spin in GaAs was relaxed mainly by optical phonon scattering at high electron densities and piezoelectric phonon scattering at relatively low electron densities.