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Abstract: We study the spin-orbit coupling in the whole Brillouin zone for GaAs usingboth the $sp^3s^{\ast}d^5$ and $sp^3s^{\ast}$ nearest-neighbor tight-bindingmodels. In the $\Gamma$-valley, the spin splitting obtained is in goodagreement with experimental data. We then further explicitly present thecoefficients of the spin splitting in GaAs $L$ and $X$ valleys. These resultsare important to the realization of spintronic device and the investigation ofspin dynamics far away from equilibrium.



Author: J. Y. Fu, M. Q. Weng, M. W. Wu

Source: https://arxiv.org/







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