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Anisotropic spin splitting and spin relaxation in asymmetric zinc-blende semiconductor quantum structures

J. Kainz·U. Roessler·R. Winkler
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Abstract

Spin relaxation due to the D'yakonov-Perel' mechanism is intimately related with the spin splitting of the electronic states. We determine the spin relaxation rates from anisotropic spin splittings of electron subbands in n-(001) zinc-blende semiconductor quantum structures calculated self-consistently in the multi-band envelope function approach. The giant anisotropy of spin relaxation rates found for different spin-components in the (001) plane can be ascribed to the interplay between the bulk and quantum well inversion asymmetry. One of the in-plane relaxation rates may exhibit a striking nonmonotonous dependence on the carrier density.

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J. Kainz, U. Roessler, R. Winkler. 2003-06-10. Anisotropic spin splitting and spin relaxation in asymmetric zinc-blende semiconductor quantum structures. https://doi.org/10.1103/physrevb.68.075322

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