Micromagnetic model of perpendicular recording head with soft underlayer

M. Khan; R. H. Victora

doi:10.1109/20.950847

Micromagnetic model of perpendicular recording head with soft underlayer

M. Khan, R. H. Victora

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

20 Scopus citations

Abstract

A system including a perpendicular recording head and soft underlayer has been studied using micromagnetic simulation. The model uses cubic cells in the underlayer and pole tips. In our model the total field consists of the magnetostatic interaction field, exchange field, anisotropy field and applied field from the nontip region of the head. A closed form result was used to calculate interaction fields in the soft underlayer and pole tips. The equation of motion for the magnetization is taken to be the Landau-Lifshitz-Gilbert equation. The geometrical configuration of the head and underlayer was varied to optimize for a high perpendicular field component and a high gradient at the media.

Original language	English (US)
Pages (from-to)	1379-1381
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.950847
State	Published - Jul 1 2001
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: Jan 7 2001 → Jan 11 2001

Keywords

Micromagnetics
Perpendicular recording
Soft underlayer

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10.1109/20.950847

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abstract = "A system including a perpendicular recording head and soft underlayer has been studied using micromagnetic simulation. The model uses cubic cells in the underlayer and pole tips. In our model the total field consists of the magnetostatic interaction field, exchange field, anisotropy field and applied field from the nontip region of the head. A closed form result was used to calculate interaction fields in the soft underlayer and pole tips. The equation of motion for the magnetization is taken to be the Landau-Lifshitz-Gilbert equation. The geometrical configuration of the head and underlayer was varied to optimize for a high perpendicular field component and a high gradient at the media.",

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AU - Khan, M.

AU - Victora, R. H.

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N2 - A system including a perpendicular recording head and soft underlayer has been studied using micromagnetic simulation. The model uses cubic cells in the underlayer and pole tips. In our model the total field consists of the magnetostatic interaction field, exchange field, anisotropy field and applied field from the nontip region of the head. A closed form result was used to calculate interaction fields in the soft underlayer and pole tips. The equation of motion for the magnetization is taken to be the Landau-Lifshitz-Gilbert equation. The geometrical configuration of the head and underlayer was varied to optimize for a high perpendicular field component and a high gradient at the media.

AB - A system including a perpendicular recording head and soft underlayer has been studied using micromagnetic simulation. The model uses cubic cells in the underlayer and pole tips. In our model the total field consists of the magnetostatic interaction field, exchange field, anisotropy field and applied field from the nontip region of the head. A closed form result was used to calculate interaction fields in the soft underlayer and pole tips. The equation of motion for the magnetization is taken to be the Landau-Lifshitz-Gilbert equation. The geometrical configuration of the head and underlayer was varied to optimize for a high perpendicular field component and a high gradient at the media.

KW - Micromagnetics

KW - Perpendicular recording

KW - Soft underlayer

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