MAGNETISM OF RARE-EARTH TRANSITION-METAL NANOSCALE MULTILAYERS .2. THEORETICAL-ANALYSIS OF MAGNETIZATION AND PERPENDICULAR MAGNETIC-ANISOTROPY

被引:57
作者
SHAN, ZS [1 ]
SELLMYER, DJ [1 ]
JASWAL, SS [1 ]
WANG, YJ [1 ]
SHEN, JX [1 ]
机构
[1] UNIV NEBRASKA,CTR MAT RES & ANAL,LINCOLN,NE 68588
来源
PHYSICAL REVIEW B | 1990年 / 42卷 / 16期
关键词
D O I
10.1103/PhysRevB.42.10446
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Systematic studies of rare-earth transition-metal amorphous compositionally modulated films (CMF) permit the development of a detailed model for understanding the magnetization and perpendicular magnetic anisotropy and their distributions along the film normal. It is shown that the single-ion anisotropy of rare-earth ions with orbital angular momentum is the major contributor to the perpendicular anisotropy for this class of CMF. The calculated results agree well with the experimental data for Dy/Co and Tb/Fe CMF when the individual layer thicknesses are small enough (<10); these films have structures which can be characterized as compositionally modulated amorphous alloys. © 1990 The American Physical Society.
引用
收藏
页码:10446 / 10459
页数:14
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