SURFACE ANISOTROPY IN AMORPHOUS TB-FE/AL2O3 MULTILAYERS

被引：2
|
作者：
KRISHNAN, R
机构：
[1] Laboratoire de Magnétisme Matériaux Magnétiques, CNRS
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 109卷 / 01期
关键词：
D O I：
10.1016/0304-8853(92)91031-N
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied the anisotropy in Tb-Fe/Al2O3 multilayers prepared by rf sputtering. These samples are amorphous. The perpendicular M - H loops are rectangular and the anisotropy is uniaxial. The product of the effective anisotropy K(eff).t(Tb-Fe) shows a linear dependence with t(Tb-Fe) as normally found for the superlattices yielding the bulk and surface anisotropies of + 1.5 x 10(6) erg cm3 and -0.15 erg cm2, respectively. This is, in our opinion, the first time that a surface anisotropy has been found in such a totally amorphous multilayer. The results are discussed.
引用
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页码：64 / 66
页数：3
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