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arXiv · 1001.4576

Effect of spin-conserving scattering on Gilbert damping in ferromagnetic semiconductors

K. Shen·G. Tatara·M. W. Wu
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Abstract

The Gilbert damping in ferromagnetic semiconductors is theoretically investigated based on the $s$-$d$ model. In contrast to the situation in metals, all the spin-conserving scattering in ferromagnetic semiconductors supplies an additional spin relaxation channel due to the momentum dependent effective magnetic field of the spin-orbit coupling, thereby modifies the Gilbert damping. In the presence of a pure spin current, we predict a new contribution due to the interplay of the anisotropic spin-orbit coupling and a pure spin current.

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K. Shen, G. Tatara, M. W. Wu. 2010-01-26. Effect of spin-conserving scattering on Gilbert damping in ferromagnetic semiconductors. https://doi.org/10.1103/physrevb.81.193201

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