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

被引：0
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作者：
Sakharov, Valentin [1 ]
Khivintsev, Yuri [1 ,2 ]
Vysotskii, Sergey [1 ,2 ]
Stognij, Alexander [3 ]
Filimonov, Yuri [1 ,2 ]
Sadovnikov, Alexandr [2 ]
Beginin, Evgeny [2 ]
Nikitov, Sergey [2 ,4 ]
机构：
[1] Kotelnikov IRE RAS (Saratov Branch), 38 Zelenaya Str., Saratov,410019, Russia
[2] Chernyshevsky Saratov State University, 83 Astrakhanskaya Str., Saratov,410012, Russia
[3] Scientific-practical Materials Research Center ISSPS NASB, 19 P. Brovki Str., Minsk,220072, Belarus
[4] Kotelnikov IRE RAS, 11-7 Mokhovaya Str., Moscow,125009, Russia
来源：
Journal of Magnetism and Magnetic Materials | 2022年 / 545卷
基金：
俄罗斯基础研究基金会;
关键词：
Energy gap - Resonance - Wave transmission - Yttrium iron garnet - Dispersion (waves) - Iron - Transmissions;
D O I：
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中图分类号：
学科分类号：
摘要：
In this work, the particularities of the spin wave (SW) excitations in corrugated yttrium-iron garnet (YIG) films with a thickness of 0.2 μm and a corrugation period of 20 μm were studied by micromagnetic simulations. Strong influence of the corrugation depth, changing from 0 to 0.5 μm, on SW dispersion, transmission and eigenmode spectrum was shown. Formation of a bandgap resulting from the spin-wave resonances in the sidewalls of the corrugated YIG film was discovered in the SW dispersion and transmission spectrum in addition to the Bragg bandgaps and dipole-exchange resonance. © 2021 Elsevier B.V.
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