The dependence of media noise on the magnetic cluster size for Co based thin film media fabricated under ultra clean sputtering process

M. Takahashi, A. Kikuchi, H. Hara, H. Shoji

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The media noise performance is discussed quantitatively in connection with magnetic microstructure for Co based thin film media fabricated under Ultra Clean (UC) process. Results are summarized as follows : (1) The media noise decreases by reducing the dispersion of magnetic filed strength at transition, (2) The dispersion of magnetic field strength at transition is suppressed by the reduction of magnetic cluster size, and (3) The grain size reduction and the decrement of intergranular magnetic coupling play an important role for the improvement of recording performance though the reduction of magnetic cluster size.

Original languageEnglish
Pages (from-to)1573-1575
Number of pages3
JournalIEEE Transactions on Magnetics
Volume34
Issue number4 PART 1
DOIs
Publication statusPublished - 1998
Externally publishedYes

Keywords

  • Grain size
  • Intergranular magnetic coupling
  • Magnetic cluster
  • Media noise

ASJC Scopus subject areas

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

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