An analytical three-dimensional field model of a perpendicular recording head

Author

Okuda, K. ; Sueoka, Kazuhisa ; Ashar, K.G.

Author_Institution

IBM Japan, Ltd., Tokyo, Japan

Volume

24

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

2479

Lastpage

2481

Abstract

A simple analytical three-dimensional head-field model has been developed for a single-pole perpendicular recording head with a soft magnetic interlayer below the recording medium. A large-scale (5000:1) model of a perpendicular recording head has also been constructed. The normalized head fields obtained by the analytical model show good agreement with the experimental results from the large-scale model. Using the analytical model, it was confirmed that the side fringe of a perpendicular head diminishes rapidly compared with that of a longitudinal head, providing a higher potential for narrow-track recording

Keywords

hard discs; magnetic heads; magnetic recording; 3D model; analytical model; analytical three-dimensional field model; experimental results; hard disks; head-field model; large-scale model; narrow-track recording; normalized head fields; perpendicular recording head; side fringe; single-pole perpendicular recording head; soft magnetic interlayer; Analytical models; Crosstalk; Laboratories; Large-scale systems; Magnetic analysis; Magnetic heads; Magnetic recording; Permeability; Perpendicular magnetic recording; Soft magnetic materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92147

Filename

92147