Effect of magnetic saturation on reproducing characteristics of magnetoresistive heads

Author

Fukuoka, Hirotsugu ; Fukui, Hiroshi ; Aihara, Makoto ; Takano, Hisashi ; Suzuki, Mikio

Author_Institution

Res. Lab., Hitachi Ltd., Ibaraki, Japan

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1345

Lastpage

1349

Abstract

The reproducing characteristics of a magnetoresistive head were studied. Using a two-dimensional finite element method, recording density characteristics and peak shift characteristics of the MR head were estimated with a saturation effect. Recording density characteristics changed with the magnetic saturation of the MR element with a large remanent magnetization and thickness product of the recording medium, but peak shift was not affected by it. Compared with the gap length dependence of the inductive head, the MR head had a lower D₅₀ and smaller peak shift than did the inductive head

Keywords

finite element analysis; magnetic heads; magnetoresistive devices; remanence; magnetic saturation; magnetoresistive heads; peak shift; peak shift characteristics; recording density characteristics; remanent magnetization; reproducing characteristics; thickness product; two-dimensional finite element method; Conductivity; Conductors; Current density; Equations; Finite element methods; Magnetic fields; Magnetic heads; Magnetic recording; Magnetoresistance; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305530

Filename

305530