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Proceedings Paper

Magnetically coupled MO double layer suitable for field modulation overwriting
Author(s): Norio Ota; Katsusuke Shimazaki; Satoru Ohnuki; Hideo Fujiwara; Michiaki Hashimoto
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Paper Abstract

Exchange coupled MO films like (PtCo/TbFeCo) and TbFeCo/TbFeCo) enable a very small external field of only 50 Oe for erase and write. Those are suitable media for a field modulation overwriting. In plane magnetized PtCo or low perpendicular anisotropy TbFeCo acts as the external field enhancing layer through exchange coupling with the TbFeCo recording layer.

Paper Details

Date Published: 13 August 1992
PDF: 7 pages
Proc. SPIE 1663, Optical Data Storage, (13 August 1992); doi: 10.1117/12.137547
Show Author Affiliations
Norio Ota, Hitachi Maxell Ltd. (Japan)
Katsusuke Shimazaki, Hitachi Maxell Ltd. (Japan)
Satoru Ohnuki, Hitachi Maxell Ltd. (Japan)
Hideo Fujiwara, Hitachi Maxell Ltd. (Japan)
Michiaki Hashimoto, Hitachi Maxell Ltd. (Japan)


Published in SPIE Proceedings Vol. 1663:
Optical Data Storage
Donald B. Carlin; David B. Kay; Alfred A. Franken, Editor(s)

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