How antiferromagnetic coupling can stabilize recorded information

被引：15

作者：

Richter, HJ ^{[1
]}

Girt, E ^{[1
]}

机构：

[1] Seagate Recording Media, Fremont, CA 94538 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期

关键词：

antiferromagnetically coupled media; superparamagnetism; thermal stability;

D O I：

10.1109/TMAG.2002.801785

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：

Antiferromagnetic coupling (AFC) can be used to stabilize recorded information because it: 1) reduces the demagnetizing fields at storage and 2) increases the energy barrier against magnetization reversal. It is shown that weak AFC is most advantageous and that both mechanisms work for superparamagnetic stabilization layers. It is also shown that the stabilization layer is recorded during the write process. The relaxation to the antiferromagnetic state is observed experimentally.

引用

页码：1867 / 1872

页数：6

共 24 条

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