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arXiv · 1108.2059

Spin-orbit coupling and $g$-factor of $X$-valley in cubic GaN

K. Shen·J. Y. Fu·M. W. Wu
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Abstract

We report our theoretically investigation on the spin-orbit coupling and $g$-factor of the $X$-valley in cubic GaN. We find that the spin-orbit coupling coefficient from $sp^3d^5s^\ast$ tight-binding model is 0.029\,eV$\cdot$Å, which is comparable with that in cubic GaAs. By employing the ${\bf k}\cdot{\bf p}$ theory, we find that the $g$-factor in this case is only slightly different from the free electron $g$-factor. These results are expected to be important for the on-going study on spin dynamics far away from equilibrium in cubic GaN.

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K. Shen, J. Y. Fu, M. W. Wu. 2011-08-09. Spin-orbit coupling and $g$-factor of $X$-valley in cubic GaN. https://doi.org/10.1016/j.ssc.2011.09.019

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