Simplified expression of shielded MR head response for double-layer perpendicular medium
Simplified expression of shielded MR head response for double-layer perpendicular medium
复制标题
双层垂直介质屏蔽磁阻磁头响应的简化表达式
DOI：
10.1109/20.800784
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Y. Nakamura
中科院分区：
文献类型：
--
作者：
H. Muraoka;Y. Sugita;Y. Nakamura
对于垂直双层介质，给出了磁共振头响应的近似简单表达式。通过修改范氏方程，使之成为非积分形式，得到了该方程。通过与Fan方程的精确解进行比较，验证了该方法的有效性。该方法在实际应用中误差小于10%。利用这个表达式，互易定理表明，测量的垂直记录的跃迁长度非常小，小于10 nm。
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's 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.