Simplified expression of shielded MR head response for double-layer perpendicular medium

被引：26

作者：

Muraoka, H ^{[1
]}

Sugita, Y ^{[1
]}

Nakamura, Y ^{[1
]}

机构：

[1] Tohoku Univ, RIEC, Sendai, Miyagi 9808577, Japan

来源：

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

关键词：

perpendicular magnetic recording; MR head; double-layer medium; reciprocity theorem;

D O I：

10.1109/20.800784

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 approximated simple expression of MR head response was given for perpendicular double-layer media. The equation was derived by modifying Fan's equation so as to be of a nonintegral form. The validity was confirmed by comparisons with exact solutions of the Fan' equation, which resulted in errors of less than 10 % for practical applications of recent MR heads. Using the expression, the reciprocity theorem revealed that the measured transition length of perpendicular recording was extremely small, less than 10 nm.

引用

页码：2235 / 2237

页数：3