Thermal stability study on highly oriented longitudinal thin film media

J. P. Wang, C. H. Hee, T. C. Chong

Research output: Contribution to journalConference articlepeer-review

11 Scopus citations

Abstract

The thermal stability of highly oriented longitudinal thin film media was studied via micromagnetic modeling. 3D writing head field was used to write recording patterns on highly oriented media. The thermal energy barrier for the simulated recording bits was analyzed. It was found that highly oriented media has a higher energy barrier and the energy barrier reduces with the reduction of orientation ratio. Monte Carlo method was combined with micromagnetic modeling to simulate the time decay of the magnetization. It was found that highly oriented media shows slower magnetization decay rate at both zero magnetic field and a reverse magnetic field simulating the demagnetization field in recording bit. The higher the orientation ratio, the slower the magnetization decay rates.

Original languageEnglish (US)
Pages (from-to)3199-3201
Number of pages3
JournalIEEE Transactions on Magnetics
Volume36
Issue number5 I
DOIs
StatePublished - Sep 1 2000
Event2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada
Duration: Apr 9 2000Apr 12 2000

Keywords

  • Highly oriented longitudinal media
  • Magnetization decay
  • Micromagnetic modeling
  • Thermal energy barrier

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