Spin Relaxation and Spin Dynamics in Semiconductors

Authored by: Jaroslav Fabian , M.W. Wu

Handbook of Spin Transport and Magnetism

Print publication date:  August  2011
Online publication date:  April  2016

Print ISBN: 9781439803776
eBook ISBN: 9781439803783
Adobe ISBN:

10.1201/b11086-21

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Abstract

The spin of conduction electrons decays due to the combined effect of spin–orbit coupling and momentum scattering. The spin–orbit coupling couples the spin to the electron momentum that is randomized by momentum scattering off of impurities and phonons. Seen from the perspective of the electron spin, the spin–orbit coupling gives a spin precession, while momentum scattering makes this precession randomly fluctuating, both in magnitude and orientation.

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