| Issue |
J. Phys. IV France
Volume 07, Number C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
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|---|---|---|
| Page(s) | C1-741 - C1-742 | |
| DOI | https://doi.org/10.1051/jp4:19971302 | |
7th INTERNATIONAL CONFERENCE ON FERRITES
J. Phys. IV France 07 (1997) C1-741-C1-742
DOI: 10.1051/jp4:19971302
1 Department of Information Engineering, Shinshu University, 500 Wakasato, Nagano 380, Japan
2 Department of Physical Electronics, Faculty of Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152, Japan
© EDP Sciences 1997
J. Phys. IV France 07 (1997) C1-741-C1-742
DOI: 10.1051/jp4:19971302
Crystal Structure and Magnetic Properties of Post-Annealed Ba-Ferrite Thin Films for High Density Recording Media
A. Morisako1, X. Liu1, F. Wada1, S. Takei1, M. Matsumoto1 and M. Naoe21 Department of Information Engineering, Shinshu University, 500 Wakasato, Nagano 380, Japan
2 Department of Physical Electronics, Faculty of Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152, Japan
Abstract
Hexagonal Ba-ferrite films have been prepared at room temperature by facing targets sputtering (FTS) system and they were annealed to crystallize at 900°C in air. In this paper, the dependence of the annealing time on grain size of post-annealed Ba-ferrite films has been studied. It was found that the annealing time of 45sec is sufficient for the crystallization without apparent grain growth under the temperature of 900°C and the post-annealed Ba-ferrite films exhibit isotropic magnetic property.
© EDP Sciences 1997