Nonlinear Damping and Nonlinear Phase Shift of Intense Spin Waves in Screened Ferrite Films
- Авторы: Kozin A.1,2, Ustinov A.1
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Учреждения:
- St. Petersburg State Electrotechnical University LETI
- OOO Magneton
- Выпуск: Том 64, № 2 (2019)
- Страницы: 265-269
- Раздел: Radiophysics
- URL: https://journals.rcsi.science/1063-7842/article/view/202934
- DOI: https://doi.org/10.1134/S1063784219020099
- ID: 202934
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Аннотация
We analyze for the first time nonlinear damping and nonlinear phase shift of intense surface spin waves in screened yttrium–iron garnet films. Nonlinear damping coefficients are determined using the phenomenological model of spin wave propagation in such films. It is found that nonlinear phase shift in screened films is a weak effect as compared with free films and amounts to tens of degrees. At the same time, nonlinear damping in screened films is comparable with the corresponding value for free films. It is shown that for micrometer-thick films, the losses introduced upon an increase of power to 15 dBm become larger by 2–5 dB.
Об авторах
A. Kozin
St. Petersburg State Electrotechnical University LETI; OOO Magneton
Email: ustinov-rus@mail.ru
Россия, St. Petersburg, 197376; St. Petersburg, 194223
A. Ustinov
St. Petersburg State Electrotechnical University LETI
Автор, ответственный за переписку.
Email: ustinov-rus@mail.ru
Россия, St. Petersburg, 197376