Substrate bias voltage dependences of the magnetic and magneto-optical properties in amorphous Tb-Co and Dy-Co films.
Open Access
- 1 January 1984
- journal article
- Published by The Magnetics Society of Japan in Journal of the Magnetics Society of Japan
- Vol. 8 (2) , 149-152
- https://doi.org/10.3379/jmsjmag.8.149
Abstract
Magnetic and magneto-optical properties of amorphous Tb-Co and Dy-Co films prepared by R. F. sputtering were investigated. Magnetic properties such as 4πMs, θk, Tc, Tcomp and X-ray halo pattern hardly change in the region of positive substrate bias voltage (Vb). On the other hand, they change considerably by increasing negative Vb from 0V to -150V because rare-earth atoms of the films are resputtered preferentially. Vb dependences of perpendicular magnetic anisotropy (Ku) of amorphous Tb-Co and Dy-Co films show minimum values around the Vb’s of -60V and -80V, respectively. These phenomena seem to be explainable in terms of a change of microscopic structure which originates from the preferential resputtering effect.Keywords
This publication has 1 reference indexed in Scilit:
- Substrate bias voltage dependences of magnetic properties in amorphous Tb-Fe filmsJournal of Magnetism and Magnetic Materials, 1983