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Measuring the effective field of biaxial anisotropy in magnetic films magnetized in their plane on pulsed induction setupsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Kolotov O.S., Matyunin A.V.
- Журнал: Instruments and Experimental Techniques
- Том: 49
- Номер: 5
- Год издания: 2006
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 688
- Последняя страница: 692
- DOI: 10.1134/S0020441206050149
- Аннотация: The process of 90 degrees pulsed magnetization is proposed to be used to measure the effective field of biaxial anisotropy H-K2. The method has been developed as applied to ferrite-garnet films with a magnetization lying in their plane and is based on the determination of threshold field H-m0, at which magnetization is fully effected by rotation of magnetization vector M. The analysis performed in this study has shown that H-K2 = 4(H(m0)cos phi* - H(0)sin phi*)/sin4 phi*, where H-0 is the setting field determining the initial direction of vector M along one of the easy magnetization axes, and phi* is the critical angle of the initial rotation of vector M reached in field H 0, beginning with which the magnetization rotation is not decelerated by anisotropy forces. It is shown that, for typical values of H-K2, phi* congruent to 26 degrees. The threshold field is determined from a kink in the dependence of the initial-peak amplitude in the longitudinal signal of 90 degrees magnetization on the amplitude of magnetizing field H-m. For homogeneous films, the measurement accuracy of the effective field of biaxial anisotropy ensured in this method is no worse than 5-6%.
- Добавил в систему: Матюнин Андрей Валерьевич