Rare-earth and transition metal sublattice contributions to magnetization and magnetic anisotropy of R(TM,Ti)12 single crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Авторы:
Tereshina I.S. ,
Nikitin S.A. ,
Ivanova T.I. ,
Skokov K.P.
Журнал:
Journal of Alloys and Compounds
Том:
275
Год издания:
1998
Издательство:
Elsevier BV
Местоположение издательства:
Netherlands
Первая страница:
625
Последняя страница:
628
Аннотация:
The substitution effect of Fe by Co on magnetic properties (magnetization, anisotropy field, Curie temperature) of R(TM,Ti)12 (R=Y, Sm; TM=Fe, Co) single crystals have been studied. The temperature and composition dependence of magnetization and magnetic anisotropy constants K1 and K2 in the range 77-1000 K have been determined using torque and vibrating specimen magnetometry techniques. 57Fe Mossbauer spectra of powdered samples of SmFe11 - xCoxTi have been studied at room temperature. The easy magnetization direction of RFe11 - xCoxTi single crystals was found to be coinciding with the c axis for x≤5. A characteristic maximum in concentration dependence of saturation magnetization is found for x≈3. The concentration dependence of magnetic anisotropy constant K1 for RFe11 - xCoxTi single crystals exhibited a maximum at x≈1. It is found that the Sm-sublattice contribution to magnetic anisotropy decreases rapidly with increasing Co concentration. © 1998 Published by Elsevier Science S.A.
Добавил в систему:
Никитин Сергей Александрович