Pinning of written bits in perpendicular recording media

S. J. Greaves, H. Muraoka*, Y. Sonobe, M. Schabes, Y. Nakamura

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

29 Citations (Scopus)


A perpendicular medium comprising two distinct magnetic layers is described. One layer has a granular structure with isolated, exchange-decoupled grains and the other is a continuous, exchange-coupled layer. In the combined structure dain wall movement is restricted and reversed grains within written bits are eliminated. The S/N ratio is improved compared with single layers of either type alone.

Original languageEnglish
Pages (from-to)418-423
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
Publication statusPublished - 2001 Oct
Externally publishedYes
EventProceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan
Duration: 2000 Oct 232000 Oct 26


  • Domain wall pinning
  • Noise
  • Perpendicular media

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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