The effect of cluster size on thin film media noise

Author

Miles, J.J. ; Wdowin, M. ; Oakley, J. ; Middleton, B.K.

Author_Institution

Dept. of Electr. Eng., Manchester Univ., UK

Volume

31

Issue

2

fYear

1995

fDate

3/1/1995 12:00:00 AM

Firstpage

1013

Lastpage

1024

Abstract

A dynamic micromagnetic model of thin film magnetic recording media with generalised structure has been used to study the effect of cluster size on thin film media noise. Clusters formed by common crystallography and by intergranular exchange coupling have been simulated, and the effects of clustering on hysteresis and noise are presented. For small clusters of a few grains, crystallographic correlations are shown to have the same effect on noise as intergranular exchange coupling, giving an increase in magnetic feature size and noise.<>

Keywords

digital magnetic recording; exchange interactions (electron); magnetic hysteresis; magnetic recording noise; magnetic thin films; cluster size; crystallography; digital magnetic recording; dynamic micromagnetic model; hysteresis; intergranular exchange coupling; magnetic feature size; thin film magnetic recording media; thin film media noise; Amorphous magnetic materials; Couplings; Crystallography; Large-scale systems; Magnetic films; Magnetic noise; Micromagnetics; Microstructure; Noise generators; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.364777

Filename

364777