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 Dec 1

    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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