Title :
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
fDate :
9/1/1996 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
