Analytic field components for perpendicular thin-film recording heads

被引：5
|
作者：
Shute, HA [1 ]
Wilton, DT
Mapps, DJ
机构：
[1] Univ Plymouth, Dept Math & Stat, Plymouth PL4 8AA, Devon, England
[2] Univ Plymouth, Ctr Res Informat Storage Technol, Plymouth PL4 8AA, Devon, England
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2001年 / 37卷 / 06期
关键词：
approximations; digital recording; Laplace equations; magnetic head fields; magnetic recording/reading heads; mathematics;
D O I：
10.1109/20.966131
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：
This paper presents a new, entirely analytic solution for the magnetic field of a thin-film head of arbitrary dimensions, in the presence of a soft magnetic underlayer. The magnetic potential on each pole is assumed to be a known constant. Fourier coefficients and field components are given for two particular cases of practical interest. The paper demonstrates the accuracy of approximations that require no Fourier coefficients, but that must be evaluated numerically.
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页码：3947 / 3955
页数：9
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