| Popis: |
In order to contribute to the investigations of the mechanism of positive K_u induced in the amorphous R-T films, a magnetic study was made on the amorphous GdCo, GdCoMo, and GdFe films prepared under various conditions. It is found that the origin of K_u in the GdFe films is quite different from that in the GdCo and GdCoMo films. In the case of GdCo and GdCoMo films, the positive K_u is induced by a resputtering effect and its main physical origin is thought as an atomic pair ordering. That is, the resputtering effect of the isolated Gd atoms produces anisotropic distributions of Gd-Co and Co-Co pairs in the films. However, a different mechanism of stress induced anisotropy is taken as the responsible one for the positive K_u in the GdFe films. |
