| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1711 - C8-1712 | |
| DOI | https://doi.org/10.1051/jphyscol:19888777 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1711-C8-1712
DOI: 10.1051/jphyscol:19888777
Philips Research Laboratory, D2000 Hamburg, F.R.G.
J. Phys. Colloques 49 (1988) C8-1711-C8-1712
DOI: 10.1051/jphyscol:19888777
KINETICS OF SURFACE OXIDATION AND RELATED CHANGES IN THE MAGNETISM OF AMORPHOUS TbFeCo FILMS
S. Klahn, H. Heitmann, M. Rosenkranz et H. J. TollePhilips Research Laboratory, D2000 Hamburg, F.R.G.
Abstract
Aging of TbFeCo films at temperatures below 250 °C causes preferential oxidation of the Tb atoms resulting in a decrease of compensation temperature, perpendicular anisotropy, and coercive energy density while the in-plane magnetization increases. By increasing the aging temperature above 250 °C, the films are completely oxidized within 15 hours resulting in a decrease of magnetization. At 350 °C the oxidized films begin to crystallize.