Exact calculation method for medium field from a perpendicular medium

被引：12

作者：

Suzuki, Y ^{[1
]}

Nishida, Y ^{[1
]}

机构：

[1] Hitachi Ltd, Cent Res Lab, Tokyo 1858601, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2003年 / 39卷 / 05期

关键词：

field calculation; giant magnetoresistive heads; magnetic recording; perpendicular magnetic recording;

D O I：

10.1109/TMAG.2003.815534

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：

An exact calculation method for the medium field from a perpendicular magnetic recording medium with a soft underlayer was derived. The new method utilizes the Fourier series expansion, and the derived equation converges to the equation for the medium without a soft underlayer in the limit of infinite distance between the head surface and the soft underlayer. The new method, when combined with a micromagnetics simulation of the medium and the giant magnetoresistive head, provides a useful tool for the analysis of the read back signals in perpendicular magnetic recording.

引用

页码：2633 / 2635

页数：3

共 5 条

[1] ANALYSIS OF A PRACTICAL PERPENDICULAR HEAD FOR DIGITAL PURPOSES [J].