Antiferromagnetically coupled perpendicular recording media

被引：34
|
作者：
Girt, E [1 ]
Richter, HJ [1 ]
机构：
[1] Seagate Recording Media, Fremont, CA 94538 USA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2003年 / 39卷 / 05期
关键词：
antiferromagnetically coupled (AFC) media; Ruderman-Kittel-Kasuya-Yosida (RKKY) coupling; thermal stability;
D O I：
10.1109/TMAG.2003.816280
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We demonstrate that the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction can be used to improve the stability of perpendicular recording media-Both the nucleation field and the coercivity in the perpendicular direction increase due to the antiferromagnetic coupling (AFC). Analogous to longitudinal AFC media, it is observed that the magnetization of the stabilization layer slowly relaxes to the antiparallel state. This relaxation is primarily driven by the demagnetizing fields in the stabilization layer and hence becomes slower with increasing bit density.
引用
收藏
页码：2306 / 2310
页数：5
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