Spin wave filtration by resonances in the sidewalls of corrugated yttrium-iron garnet films

Valentin Sakharov,Yuri Khivintsev,Sergey Vysotskii,Alexander Stognij,Yuri Filimonov,Alexandr Sadovnikov,Evgeny Beginin,Sergey Nikitov

Journal of Magnetism and Magnetic Materials（2022）

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Abstract

•Spin wave resonances in the sidewalls of corrugated magnetic films causes band gaps.•Frequency position of the “band gap due sidewall” grows with the corrugation depth.•“Band gap due sidewall” exists independently of Bragg resonances.•“Band gap due sidewall” shows ten times larger attenuation than Bragg resonances.

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Key words

Spin wave,Corrugated yttrium iron garnet film,Dispersion characteristic,Micromagnetic simulation,Transmission characteristic

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