Observation of two-critical-angle phenomenon in spin wave resonances in diluted ferromagnetic semiconductor GaMnAs thin films

X. Liu,M. Dobrowolska,J.K. Furdyna,H. Puszkarski,P. Tomczak

Journal of Magnetism and Magnetic Materials（2020）

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摘要

•We apply a new procedure of identifying surface pinning on GaMnAs film.•First observation of a double-critical-angle phenomenon in spin wave resonance.•Higher-order cubic terms are included in the description of the surface energy.

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关键词

Spin wave resonance,Ferromagnetic semiconductors,Spherical surface pinning,Magnetic surface anisotropy

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