Advanced synthetic ferrimagnetic media (invited)

被引：13

作者：

Inomata, A ^{[1
]}

Acharya, BR ^{[1
]}

Abarra, EN ^{[1
]}

Ajan, A ^{[1
]}

Hasegawa, D ^{[1
]}

Okamoto, I ^{[1
]}

机构：

[1] Fujitsu Labs Ltd, Atsugi, Kanagawa 2430197, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 91卷 / 10期

关键词：

D O I：

10.1063/1.1447527

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The exchange coupling field (H-ex) in two-layer synthetic ferrimagnetic media (SFM) is enhanced to extend the areal density capability of earlier structures. The thermal stability of SFM is improved by employing high magnetic anisotropy stabilizing layers without significantly affecting the required write fields. However, this necessitates larger H-ex values than were earlier realized, to preserve the antiparallel layer magnetic configuration at remanence. H-ex is improved by inserting thin high Co content hcp layers, called "E-layers," between the Ru layer and the magnetic layers. Large H-ex values from 1 to 4 kOe are obtained depending on the E-layer composition and thickness. As the intergranular coupling is affected by the Co-rich E-layers, a method is provided that improves H-ex to values >1 kOe without degrading read-write properties. (C) 2002 American Institute of Physics.

引用

页码：7671 / 7675

页数：5

共 18 条

[1] Longitudinal magnetic recording media with thermal stabilization layers [J].