Spin-orbit coupling in bulk GaAs

Details Spin-orbit coupling in bulk GaAs Spin-orbit coupling in bulk GaAs

2007-12-23

arxiv.org/abs/0712.3890v3

Physica E 40, 2890 (2008).

Physics

Condensed Matter

Materials Science

8 pages, 3 figures, Physica E, in press

Scientific paper

10.1016/j.physe.2008.02.006

We study the spin-orbit coupling in the whole Brillouin zone for GaAs using both the $sp^3s^{\ast}d^5$ and $sp^3s^{\ast}$ nearest-neighbor tight-binding models. In the $\Gamma$-valley, the spin splitting obtained is in good agreement with experimental data. We then further explicitly present the coefficients of the spin splitting in GaAs $L$ and $X$ valleys. These results are important to the realization of spintronic device and the investigation of spin dynamics far away from equilibrium.

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