Exchange coupling and grain-size distributions in perpendicular recording media

Simon John Greaves, A. M. Goodman, Hiroaki Muraoka, Y. Nakamura

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The influence of exchange coupling distributions on the recording performance of perpendicular media is investigated. It is found that the grain-size distribution has a much larger influence than variations in interfacial coupling. Furthermore, it is shown that, provided the head field gradient is sufficiently large, the intrinsic "magnetic cluster size" is not a limiting factor in the recording performance.

Original languageEnglish
Pages (from-to)66-71
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Issue numberSPEC. ISS.
Publication statusPublished - 2005 Feb 1


  • Exchange coupling
  • Jitter
  • Noise
  • Simulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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