The effect of fcc grains on the magnetic and recording properties of thin film media

Author

Grady, K.O. ; Walmsley, N.S. ; Wood, C.F. ; Chantrell, R.W.

Author_Institution

SEECS, Univ. of Wales, Bangor, UK

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1579

Lastpage

1581

Abstract

The recording density of thin film media is affected by percolation within the transitions. There is some evidence that the presence of low coercivity grains within the films might provide `weak links´ around which percolation nucleates. We have simulated such a system and found that the bulk parameters of films are affected by such grains and more importantly, a dramatic effect on the magnetic microstructure within transitions occurs

Keywords

cobalt alloys; coercive force; crystal microstructure; exchange interactions (electron); ferromagnetic materials; magnetic hysteresis; magnetic recording; magnetic thin films; magnetisation reversal; percolation; remanence; FCC grains; bit transitions; disordered grain structure; exchange coupling parameter; exchange decoupling; hysteresis loops; low coercivity grains; magnetic microstructure; magnetic properties; magnetisation reversal; magnetostatic field parameter; micromagnetics; percolation; recording density; recording properties; remanence; thin film media; weak links; Coercive force; FCC; Magnetic anisotropy; Magnetic films; Magnetic properties; Magnetic recording; Magnetostatics; Microstructure; Perpendicular magnetic anisotropy; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706621

Filename

706621