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Influence of the Microwave Amplitude on the Spin Current at the Pt/YIG Interfaceстатья
- Авторы: Constantinian K.Y., Ovsyannikov G.A., Stankevich K.L., Shaikhulov T.A., Shmakov V.A., Klimov A.A.
- Журнал: Physics of the Solid State
- Том: 63
- Номер: 9
- Год издания: 2021
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 1432
- Последняя страница: 1436
- DOI: 10.1134/s1063783421090201
- Аннотация: Spectra of spin current in a heterostructure, consisting of an epitaxial film of yttrium iron garnetY3Fe5O12 (YIG), grown on a gadolinium gallium garnet Gd3Ga5O12 (GGG) substrate, and a platinum (Pt)film, have been investigated. The spin current, induced by microwave irradiation of the YIG film in the fer-romagnetic-resonance mode and by the inverse spin Hall effect, was measured in the temperature rangeT= 77–300 K at the microwave power and frequency varied in the ranges of 20 μW–50 mW and 2–9 GHz,respectively, to determine the inf luence of spin-wave resonances in YIG on the spectral characteristics of thespin current. It is found that the spin current amplitude due to spin-wave resonances of surface spin wavesbecomes comparable to the contribution from the ferromagnetic resonance with an increase in the microwavepower at frequencies f = 2–3 GHz.
- Добавил в систему: Станкевич Константин Леонидович