Analysis of magnetization transition in perpendicular magnetic recording for narrow transition width

Takeshi Kato, Kenji Miura, Hajime Aoi, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

In order to achieve high linear density recording, a narrow transition width or small transition parameter, a, is imperative. Reducing the grain size improves transition jitter and also reduces the transition width. The correlation between transition width and transition jitter was examined. The observed discrepancy from simple, analytical expressions introduces more realistic magnetization transitions with island magnetization reversals. It was found that island reversals increase the transition width, rather than the transition jitter, which must be suppressed to attain high linear density.

Original languageEnglish
Pages (from-to)2900-2903
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number22
DOIs
Publication statusPublished - 2008 Nov

Keywords

  • High linear density
  • Perpendicular magnetic recording
  • Transition jitter
  • Transition width

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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