Across-the-track performance of dual stripe magnetoresistive heads

Author

Davidson, Robert J. ; Simmons, Ralph F. ; Champion, Eric ; Bertram, H Neal ; Charap, Stanley H.

Author_Institution

Disk Memory Div., Hewlett Packard Co., Boise, ID, USA

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

3929

Lastpage

3931

Abstract

Advances in 3D simulations of magnetoresistive heads and media are combined to permit detailed analysis of track-edge recording effects in hard disk applications. Vector Preisach models for thin film media were combined together with 3D micro-magnetic models of dual stripe heads into a single simulation system. This has permitted prediction of servo gain non-linearities in dual stripe heads used in embedded servo disk drives. The models are used to determine the impact of linewidth and alignment tolerances on servo gain nonlinearity

Keywords

magnetic heads; magnetoresistive devices; servomechanisms; 3D simulation; across-the-track performance; alignment tolerance; dual stripe magnetoresistive head; embedded servo disk drive; hard disk; linewidth tolerance; micromagnetic model; servo gain nonlinearity; thin film media; track-edge recording; vector Preisach model; Analytical models; Computational modeling; Disk recording; Giant magnetoresistance; Hard disks; Magnetic heads; Magnetization; Magnetosphere; Predictive models; Servomechanisms;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539220

Filename

539220