Preparation of Co-Cr-Pt alloy film with high perpendicular coercivity and large negative nucleation field

Authors
Keitoku, T Ariake, J Honda, N Ouchi, K
Citation
T. Keitoku et al., Preparation of Co-Cr-Pt alloy film with high perpendicular coercivity and large negative nucleation field, J MAGN MAGN, 235(1-3), 2001, pp. 34-39
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
235
Issue
1-3
Year of publication
2001
Pages
34 - 39
Database
ISI
SICI code
0304-8853(200110)235:1-3<34:POCAFW>2.0.ZU;2-J
Abstract
The magnetic properties of Co-Cr-Pt thin films for perpendicular magnetic r ecording media were studied in terms of the film composition. A very high p erpendicular coercivity (Hc(perpendicular to)) greater than 5000 Oe was obt ained at 13-18 at% Cr content and 12-22 at% Pt content. Perpendicular squar eness (SQ(perpendicular to)) and the maximum nucleation field (HN) were equ al to unity and -2500 Oe, respectively. Co-Cr-Pt double layered medium has also showed SQ(perpendicular to) of unity and large negative HN. (C) 2001 E lsevier Science B.V. All rights reserved.