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

被引:14
作者
Keitoku, T [1 ]
Ariake, J [1 ]
Honda, N [1 ]
Ouchi, K [1 ]
机构
[1] Akita Res Inst Adv Technol, Akita 0101623, Japan
关键词
squareness; nucleation field; perpendicular coercivity; film composition;
D O I
10.1016/S0304-8853(01)00295-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The magnetic properties of Co-Cr-Pt thin films for perpendicular magnetic recording media were studied in terms of the film composition. A very high perpendicular coercivity (Hc(perpendicular to)) greater than 5000 Oe was obtained at 13-18 at% Cr content and 12-22 at% Pt content. Perpendicular squareness (SQ(perpendicular to)) and the maximum nucleation field (HN) were equal 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 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:34 / 39
页数:6
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