Dynamic simulation of high-density perpendicular recording head and media combination

Author

Liu, Z.J. ; Long, H.H. ; Ong, E.T. ; Li, E.P. ; Li, J.T.

Author_Institution

Data Storage Inst., Nat. Univ. of Singapore

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

943

Lastpage

946

Abstract

This paper presents numerical simulation of high-density magnetic recording process with perpendicular head and media. The simulation is based on three-dimensional micromagnetic model of the media and an analytical model of the single pole perpendicular recording write field. The physical problem is modeled with a hybrid FEM-BEM formulation and the evaluation is accelerated using a new Fast Fourier Transform on Multipoles method. The model is suitable for studying magnetization transition configuration in perpendicular media with softmagnetic underlayer, and in turn can be used to derive microtrack model for evaluating the performance of recording systems

Keywords

boundary-elements methods; fast Fourier transforms; finite element analysis; magnetic heads; magnetisation reversal; micromagnetics; perpendicular magnetic recording; soft magnetic materials; 3D micromagnetic model; fast Fourier transform; high-density magnetic recording process; high-density perpendicular recording head; high-density perpendicular recording media; hybrid FEM-BEM formulation; magnetization transition configuration; microtrack model; perpendicular head; perpendicular magnetic recording; perpendicular media; single pole perpendicular recording; softmagnetic underlayer; Acceleration; Analytical models; Computational modeling; Demagnetization; Fast Fourier transforms; Magnetic heads; Magnetic recording; Magnetization; Micromagnetics; Perpendicular magnetic recording; FFT; Fast multipoles method; hybrid FEM-BEM; micromagnetic modeling; microtrack model;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871631

Filename

1608363