Journal
PHYSICAL REVIEW B
Volume 81, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.81.193201
Keywords
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Funding
- Natural Science Foundation of China [10725417]
- National Basic Research Program of China [2006CB922005]
- Chinese Academy of Sciences
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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 contribution due to the interplay of the anisotropic spin-orbit coupling and a pure spin current.
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