Micromagnetic model of perpendicular recording head with soft underlayer

M. Khan, R. H. Victora

Research output: Contribution to journalConference articlepeer-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 languageEnglish (US)
Pages (from-to)1379-1381
Number of pages3
JournalIEEE Transactions on Magnetics
Volume37
Issue number4 I
DOIs
StatePublished - Jul 1 2001
Event8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States
Duration: Jan 7 2001Jan 11 2001

Keywords

  • Micromagnetics
  • Perpendicular recording
  • Soft underlayer

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