Correlation of thermal stability and signal-to-noise ratio of thin film recording media

被引：15

作者：

Arnoldussen, TC ^{[1
]}

Mirzamaani, M ^{[1
]}

Doerner, M ^{[1
]}

Tang, K ^{[1
]}

Bian, X ^{[1
]}

Feng, J ^{[1
]}

Gatherwright, M ^{[1
]}

机构：

[1] IBM Corp, SSD, San Jose, CA 95193 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 01期

关键词：

magnetic recording; noise; SNR; thin films; thermal stability; superparamagnetic effect;

D O I：

10.1109/20.824431

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：

Thermal stability of data stored in thin film recording media is closely tied to signal-to-noise ratio (SNR), yet is not correlated in a simple way. Indeed grain size strongly affects both SNR and thermal stability, but macroscopic magnetic properties as well as recording conditions are equally influential. This is illustrated by measurements of SNR and signal thermal decay along with a simple model analysis. Dependence of areal density on key magnetic properties, under SNR and stability constraints, is formulated.

引用

页码：92 / 97

页数：6

共 9 条

[1] Bit cell aspect ratio: An SNR and detection perspective [J].