DYNAMIC COERCIVITY EFFECTS IN THIN-FILM MEDIA

Authors
RICHTER HJ WU SZ MALMHALL R
Citation
Hj. Richter et al., DYNAMIC COERCIVITY EFFECTS IN THIN-FILM MEDIA, IEEE transactions on magnetics, 34(4), 1998, pp. 1540-1542
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
34
Issue
4
Year of publication
1998
Part
1
Pages
1540 - 1542
Database
ISI
SICI code
0018-9464(1998)34:4<1540:DCEITM>2.0.ZU;2-3
Abstract
A non-destructive technique to measure the time dependence of remanent coercivity in thin film disks is suggested. It is found that typical thin film recording media show an increase in coercivity of about 25% when the length of the field pulse is decreased from similar to 50 ms down to 10 ns. Very thin magnetic films are found to have considerably larger changes in coercivity than thicker ones.