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Proceedings Paper

Direct overwriting capability of magnetic multivalued MO media
Author(s): Katsusuke Shimazaki; Masafumi Yoshihiro; O. Ishizaki; Nobuyuki Nagai; Norio Ohta
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Paper Abstract

As one of the most promising schemes for high density MO recording, a new media for magnetic multivalued recording has been proposed. By switching the external field on four levels, the quadri-valued signal was obtained. On the MMV media, field sensitivity is improved by controlling composition of PtCo capping layer coupled to TbFeCo. The external filed for recording four levels is reduced down to 350 Oe and direct overwriting capability is confirmed on 0.8micrometers mark length recording.

Paper Details

Date Published: 8 September 1995
PDF: 7 pages
Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); doi: 10.1117/12.218732
Show Author Affiliations
Katsusuke Shimazaki, Hitachi Maxell Ltd. (Japan)
Masafumi Yoshihiro, Hitachi Maxell Ltd. (Japan)
O. Ishizaki, Hitachi Maxell Ltd. (Japan)
Nobuyuki Nagai, Hitachi Maxell Ltd. (Japan)
Norio Ohta, Hitachi Maxell Ltd. (Japan)


Published in SPIE Proceedings Vol. 2514:
Optical Data Storage '95
Gordon R. Knight; Hiroshi Ooki; Yuan-Sheng Tyan, Editor(s)

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