Nutation spin waves in ferromagnets

Titov S.V., Dowling W. J., Kalmykov Yu.P., Cherkasskii M. Nutation spin waves in ferromagnets. PHYSICAL REVIEW B , 2022 , 105. р. 214414.

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Аннотация

Magnetization dynamics and spin waves in ferromagnets are investigated using the inertial Landau-Lifshitz-Gilbert (ILLG) equation. Taking inertial magnetization dynamics into account, dispersion relations describing the propagation of nutation spin waves in an arbitrary direction relative to the applied magnetic field are derived via Maxwell's equations. It is found that the inertia of magnetization causes the hybridization of electromagnetic waves and nutation spin waves in ferromagnets, hybrid nutation spin waves emerge, and the red shift of frequencies of precession spin waves is initiated, which transforms to precession-nutation spin waves. These effects depend sharply on the direction of wave propagation relative to the applied magnetic field. Moreover, the waves propagating parallel to the applied field are circularly polarized, while the waves propagating perpendicular to that field are elliptically polarized. The characteristics of these spin nutation waves are also analyzed.

Тип объекта:	Статья
Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!:	Титов С.В., Доулинг В., Калмыков Ю.П., Черкасский М.
Подразделения (можно выбрать несколько, удерживая Ctrl):	276 лаб. элементов систем лазерной связи
URI:	http://cplire.ru:8080/id/eprint/9830

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