Effects of stabilizing layer and layer configuration on recording performance of laminated antiferromagnetically coupled media

S. K. Chow, Ching Hian Hee, Jian Ping Wang

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

The recording performance of laminated antiferromagnetically coupled (LAC) media was characterized to study the effect of stabilizing layer thickness and layer configuration. Smaller pulse width, PW50, was achieved at thicker stabilizing layer from experimental and micromagnetic simulation results. Increasing the stabilizing layer thickness did not cause significant overwrite degradation for LAC media but nonlinear transition shift was found to be worse. Experimental result showed that the recording performance of a new three-layer media with middle layer functions as main layer gave higher SNR, lower noise properties, and better thermal stability although the overwrite properties may not be so good as compared to conventional single layer media and two layer LAC media. Signal decay rate of the three-layer LAC media has been reduced by 16% as compared to conventional two layer LAC media.

Original languageEnglish (US)
Pages (from-to)2090-2092
Number of pages3
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
StatePublished - Sep 1 2002
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: Apr 28 2002May 2 2002

Keywords

  • Antiferromagnetic coupling
  • Laminated antiferromagnetically coupled (LAC) media
  • Micromagnetic simulation
  • Nonlinear transition shift
  • Overwrite
  • Recording performance
  • Stabilizing layer

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