The effect of orientation ratio on the dynamic coercivity of media for > 15 Gbit/in(2) recording

Authors
Abarra, EN Okamoto, I Shinohara, M
Citation
En. Abarra et al., The effect of orientation ratio on the dynamic coercivity of media for > 15 Gbit/in(2) recording, IEEE MAGNET, 35(5), 1999, pp. 2709-2711
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
5
Year of publication
1999
Part
1
Pages
2709 - 2711
Database
ISI
SICI code
0018-9464(199909)35:5<2709:TEOORO>2.0.ZU;2-5
Abstract
The dynamic coercivity of longitudinal magnetic recording media has been in vestigated using a spin-stand. Improvement of the media orientation ratio ( O.R.) or the inplane alignment of the anisotropy axes not only results in t he improvement of thermal stability at storage times but also in a reductio n of the difference between the coercivity at high data rates (<10 ns) and at semi-de conditions (greater than or equal to 1 s). Comparison of remanen ce curves at 1 s and 14.3 ns indicate that the optimum writing current does not increase as significantly as the coercivity.