Calculation of head sensitivity function from 3-D magnetic fields

Author

Burke, Edward R. ; Gomez, Romel D. ; Madabhushi, Rajiv ; Mayergoyz, Isaak D.

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4278

Lastpage

4280

Abstract

A head sensitivity function is calculated using 3-D magnetic fields. The 3-D magnetic fields are calculated for recorded tracks with finite widths. The magnetization in the medium is expressed in 2-D Fourier series in the plane of the film and is assumed uniform through the thickness of the film. The reproduce head is idealized. These techniques are applied to data found in the literature for very narrow tracks (~0.5 μm). A surprising amount of the experimental data can be explained by the finite width of the tracks. The fine structure of the measurements can then be isolated and attributed to the particular features of the individual heads

Keywords

Fourier series; magnetic fields; magnetic heads; magnetisation; sensitivity; 3-D magnetic fields; finite widths; head sensitivity function; magnetization; recorded tracks; reproduce head; very narrow tracks; Educational institutions; Fourier series; Laboratories; Magnetic field measurement; Magnetic fields; Magnetic films; Magnetic heads; Magnetic recording; Saturation magnetization; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.334060

Filename

334060