SHORT-RANGE ORDER IN ANNEALED GD-CO FILMS WITH PERPENDICULAR ANISOTROPY

被引：10

作者：

HOFFMANN, H

WINKLER, R

机构：

[1] Institut für Angewandte Physik der Universität

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1979年 / 13卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(79)90035-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Amorphous Gd-Co films prepared by sputtering at low dc bias fields show perpendicular magnetic anisotropy after they have been annealed in a vacuum of 10-6 mbar. Anisotropy is not induced in the films if they are annealed at 10-3 mbar. Determination of the radial distribution function of the atoms before annealing and after various annealing steps showed that heat-treatment activates oxygen diffusion into the film. The oxygen bonds preferentially to Gd atoms and does not react with Co atoms. The former model of annealing-induced perpendicular anisotropy in RE-TM amorphous films is supported by the results of the present investigation. © 1979.

引用

页码：89 / 94

页数：6

共 10 条

[1] DIPOLAR MECHANISMS FOR MAGNETIC-ANISOTROPY IN AMORPHOUS FERRIMAGNETIC ALLOYS [J].