ANISOTROPY AND FMR IN COBALT-DOPED YIG-FILMS

被引：2
作者：
MARYSKO, M
机构：
[1] Institute of Physics, Academy of Science, Praha 6
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 02期
关键词：
D O I：
10.1109/20.312464
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The temperature dependence of FMR was measured on thin LPE films YIG: Co0.03Ca0.3 and YIG: Co0.06Ge0.65Ca0.7. The measured value of K1 was used to estimate Co2+(a) and Co3+(d) content. For YIG: Co, Ge, Ca the large increase of FMR linewidth towards lower temperatures was observed. The angular dependence of linewidth was compared with the calculation based on the inhomogeneous anisotropy field model. It is suggested that the low temperature increase of DELTAH is caused predominantly by fluctuations in the cubic anisotropy field, having its origin in an inhomogeneous distribution of Ca2+ ions within the film.
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收藏
页码：978 / 980
页数：3
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