Kalmykov Yu.P., Titov S.V., Byrne D. J., Coffey W.T., Zarifakis M., Al Bayyari M.H. Dipole-dipole and exchange interaction effects on the magnetization relaxation of two macrospins: compared. Journal of Magnetism and Magnetic Materials , 2020 , 507. р. 166814. ISSN 03048853
Полный текст не доступен из этого репозитория. (Заказать копию)Аннотация
The magnetization response including dipole-dipole interactions of a pair of macrospins following the sudden alteration of a dc magnetic field is calculated from the stochastic Gilbert-Landau-Lifshitz equation by reducing the overall task to an infinite hierarchy of differential-recurrence relations in the time domain for the statistical moments (averaged products of spherical harmonics in this case), which is exactly solved in the frequency domain by matrix continued fractions. The greatest relaxation time and dynamic susceptibility are then compared with the corresponding results for two exchange-coupled spins using the same exact method. For a given interaction parameter dipole-dipole coupling in the circularly symmetric configuration considered has a much more pronounced effect on the magnetization dynamics than exchange coupling principally manifested by a greater increase in the relaxation time.
| Тип объекта: | Статья |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Калмыков Ю.П., Титов С.В., Бёрн Д., Коффи В.Т., Зарифакис М., Аль Байяри М. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 276 лаб. элементов систем лазерной связи |
| URI: | http://cplire.ru:8080/id/eprint/9820 |
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