Switching field time dependence of thin film media

被引：2

作者：

Mallary, ML ^{[1
]}

Torabi, AF ^{[1
]}

Beauregard, R ^{[1
]}

机构：

[1] Quantum Corp, Technol & Engn, Shrewsbury, MA 01545 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期

关键词：

media switching; micromagnetic simulations; Sharrock's Law; switching field;

D O I：

10.1109/20.908479

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 dependence of remanent coercivity of thin film media on pulse duration has been measured for time intervals from 1.4 ns to 270 hr, The apparatus combines the field from a micro conductor with that of a DC magnet to switch the media, The data from 54 ns to 270 hr fits well to Sharrock's Law with an exponent of 0,716, The data for times less than 8 ns indicate weak gyro-magnetic enhancement of the switching field. Micromagnetic simulation shows that this can be explained by either magnetostatic or exchange coupling between the grains.

引用

页码：2477 / 2479

页数：3

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