Temperature dependence of thermal stability in longitudinal media

被引：3

作者：

Batra, S ^{[1
]}

McMillan, T ^{[1
]}

Torabi, AF ^{[1
]}

机构：

[1] Quantum Chem Corp, Shrewsbury, MA 01545 USA

来源：

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

关键词：

thermal stability; thermal decay; thermal after-effect; temperature dependence; and remanent coercivity;

D O I：

10.1109/20.800969

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：

The temperature dependence of the thermal stability factor (KuV/k(B)T) and the remanent coercivity are measured as a function of temperature from 20 degrees C to 120 degrees C. A significant decrease with temperature in both the thermal stability factor and remanent coercivity were observed due to temperature dependence of anisotropy energy (K-u). The high frequency signal loss over ten-years is calculated at an in-drive temperature of 80 degrees C for media with a thermal stability factor of 100 at room temperature. When the measured temperature dependence of the thermal stability factor is taken into account, an additional 30% decrease in the high frequency signal after ten years will be observed ol er that calculated using only the thermal energy k(B)T. This study emphasizes the importance of under-layer and the magnetic layer in affecting temperature dependence of thermal stability factor.

引用

页码：2736 / 2738

页数：3

共 9 条

[1] Experimental study of thermal decay in high-density magnetic recording media [J].