Magnetization switching in energy assisted recording

Simon Greaves, Yasushi Kanai, Hiroaki Muraoka

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Magnetization switching in energy assisted recording is examined using micromagnetic simulations. Heat assisted and microwave assisted recording are compared. The high frequency magnetic field used in microwave assisted recording can be used to reduce the switching field or the switching time, but the optimum frequencies have opposite trends as a function of temperature. In heat assisted recording the switching times at temperatures near to the Curie temperature are about half the room temperature value. In recording simulations heat assisted recording was able to write the highest quality tracks and has the potential to be able to write on media with much higher anisotropy than microwave assisted recording.

Original languageEnglish
Article number6187784
Pages (from-to)1794-1800
Number of pages7
JournalIEEE Transactions on Magnetics
Volume48
Issue number5 PART 1
DOIs
Publication statusPublished - 2012 May 1

Keywords

  • Energy assisted magnetic recording
  • simulation
  • write head

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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