STRUCTURAL ORIGINS OF MAGNETIC-ANISOTROPY IN SPUTTERED AMORPHOUS TB-FE FILMS

被引：154

作者：

HARRIS, VG

AYLESWORTH, KD

DAS, BN

ELAM, WT

KOON, NC

机构：

[1] Naval Research Laboratory, Washington

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.69.1939

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using x-ray-absorption fine-structure measurements we have obtained clear evidence for structural anisotropy in amorphous sputter-deposited TbFe films exhibiting perpendicular magnetic anisotropy. Modeling of the data shows that perpendicular anisotropy in these films is associated with Fe-Fe and Tb-Tb pair correlations which are greater in plane and Tb-Fe correlations which are greater perpendicular to the film plane. Upon annealing at 300-degrees-C the measured structural anisotropy disappears and the magnetic anisotropy decreases to a level consistent with magnetoelastic interactions between the film and substrate.

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页码：1939 / 1942

页数：4

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