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A virtual intersubband spin–flip spin–orbit coupling induced spin relaxation in GaAs (110) quantum wells

✍ Scribed by Y. Zhou; M.W. Wu

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
964 KB
Volume
149
Category
Article
ISSN
0038-1098

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✦ Synopsis

A spin relaxation mechanism is proposed based on a second-order spin-flip intersubband spin-orbit coupling together with the spin-conserving scattering. The corresponding spin relaxation time is calculated via the Fermi golden rule. It is shown that this mechanism is important in symmetric GaAs (110) quantum wells with high impurity density. The dependencies of the spin relaxation time on electron density, temperature and well width are studied with the underlying physics analyzed.

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