Longitudinal recording at 10 to 20 Gbit/inch2 and beyond

被引：40

作者：

Richter, HJ ^{[1
]}

机构：

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

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

magnetic recording; signal-to-noise ratio; super-paramagnetic effects; thermal activation; thin film media;

D O I：

10.1109/20.800987

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：

It is common understanding that superparamagnetic effects will eventually limit the maximum recording density of magnetic hard disk recording. This contribution reviews the theoretical concepts of noise in magnetic recording as well as the concepts of thermally activated magnetization reversal. The theoretical results are contrasted with experimental data. The findings clearly indicate that at some point, signal-to-noise ratio has to be compromised with the thermal stability of the written information.

引用

页码：2790 / 2795

页数：6

共 33 条

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