Precession of equilibrium magnetization vibrations of two-sublattice ferromagnetic with compensation point in broad interval of temperature and magnetic field

Abstract

Precession of equilibrium magnetization vibrations of two-sublattice ferromagnetic with compensation point in broad interval of temperature and magnetic field is investigated. The scheme of phase diagram classis construction is described. It is established character levels of constant magnetic field assigned in low, middle and upper regions of diagram. For construction of phase diagram it is proposed to use the dynamic establish magnetization method. It is distinguished temperature intervals of admissible existence of equilibrium magnetization precession. It is shown that the magnetization vibrations of both sublattices on temperature has mirror oscillations character. It is investigated the temperature dependencies of longitudinal components equilibrium magnetizations. It is shown that the longitudinal magnetization components conserve the mirror character but oscillations are absent. For quantitative characterization of equilibrium precession parameters it is proposed the width of precession portrait ring. It is investigated the temperature parameters of equilibrium precession ring width by character constant field levels. It is proposed some recommendations for further development of investigations.

• phase diagram
• two-sublattice ferromagnetic
• precession of magnetization

Аннотация (на русском)

Прецессия равновесных колебаний намагниченности двухподрешеточного ферримагнетика с точкой компенсации в широком интервале температуры и постоянного поля

Рассмотрена прецессия равновесных колебаний намагниченности двухподрешеточного ферримагнетика с точкой компенсации в широком интервале температуры и постоянного поля. Приведена схема классического построения фазовой диаграммы. Отмечены характерные уровни постоянного поля, лежащие в нижней, средней и верхней областях диаграммы. Для построения фазовой диаграммы предложено использовать метод динамического установления намагниченности. Выделены температурные интервалы допустимого существования прецессии равновесия намагниченности. Показано, что колебания намагниченностей той и другой подрешеток по температуре имеют зеркальный осциллирующий характер. Рассмотрены температурные зависимости продольных компонент равновесных намагниченностей. Показано, что продольные компоненты намагниченностей сохраняют зеркальный характер, но осцилляции отсутствуют. Для количественной характеристики параметров прецессии равновесия введена ширина кольца прецессионного портрета. Рассмотрены температурные параметры ширины кольца прецессии равновесия при характерных уровнях постоянного поля. Приведены некоторые рекомендации для развития работы.

Funding

The work was carried out within the framework of the state assignment of the V.A. Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences.

For citation

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