Improved thermal stability of synthetic ferrimagnetic media with enhanced exchange coupling strength

被引：10

作者：

Inomata, A ^{[1
]}

Abarra, EN ^{[1
]}

Acharya, BR ^{[1
]}

Ajan, A ^{[1
]}

Okamoto, I ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 15期

关键词：

D O I：

10.1063/1.1467696

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of the antiferromagnetic interlayer exchange coupling strength J between the initial or stabilization magnetic layer L1 and the top magnetic layer L2 on the thermal stability of synthetic ferrimagnetic media (SFM) is investigated. Enhanced J is achieved by the insertion of a thin Co-rich hexagonal close-packed layer between the Ru layer and L1, and such a structure did not change the read/write properties significantly. The contribution of the anisotropy energy of L1 to the thermal stability of SFM is improved by increasing J. However, a significant increase in the contribution of L1 to the thermal stability is achieved at relatively low J values (0.14 erg/cm(2)) which translate into only a 3-4% increase in the switching field H-0. (C) 2002 American Institute of Physics.

引用

页码：2719 / 2721

页数：3

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