Partitioning of the perpendicular write field into head and SUL contributions

Author

Schrefl, T. ; Schabes, M.E. ; Suess, D. ; Ertl, O. ; Kirschner, M. ; Dorfbauer, F. ; Hrkac, G. ; Fidler, J.

Author_Institution

Dept. of Eng. Mater., Sheffield, UK

Volume

41

Issue

10

fYear

2005

Firstpage

3064

Lastpage

3066

Abstract

We perform multiscale finite element simulation of the write process in perpendicular media. The Landau-Lifshitz-Gilbert equation is solved simultaneously for the head, the data layer, and the soft under layer during the motion of the head. All magnetostatic interactions between head, data layer and soft underlayer are concurrently taken into account. This fully integrated recording model enables a detailed analysis of the head field as seen by the media grains.

Keywords

boundary-elements methods; finite element analysis; magnetic heads; magnetostatics; micromagnetics; perpendicular magnetic recording; Landau-Lifshitz-Gilbert equation; SUL; data layer; fast boundary element method; finite element simulation; magnetostatic interaction; micromagnetics; perpendicular media; perpendicular recording; perpendicular write field; soft underlayer; write process; Boundary element methods; Coils; Finite element methods; Magnetic heads; Magnetic separation; Magnetization processes; Magnetostatics; Maxwell equations; Micromagnetics; Perpendicular magnetic recording; Fast boundary element method; micromagnetics; perpendicular recording; write field;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.855227

Filename

1519208