Observing the magnetization distribution in the pseudo soft underlayer of perpendicular magnetic recording media by electron holography

Kei Hirata, Yoichi Ishida, Hiroto Kasai, Tetsuya Akashi, Joong Jung Kim, Keiichi Yanagisawa, Daisuke Shindo, Akira Tonomura

    研究成果: Article査読

    2 被引用数 (Scopus)

    抄録

    We visualized the magnetic flux density of the cross track direction in the pseudo soft underlayer (SUL) of perpendicular magnetic recording media. We deposited a pseudo-SUL on the fabricated slider of a perpendicular magnetic recording head, and used electron holography to visualize and quantify the magnetic flux magnitude and distribution in the pseudo-SUL. We observed the pseudo-SUL magnetized by the write field from the writer pole tip. The magnetic flux magnitude and full width at half maximum increased with an increasing write field. We observed a correspondence between an actual recording situation and the electron holography observation.

    本文言語English
    ページ(範囲)925-927
    ページ数3
    ジャーナルIEEE Transactions on Magnetics
    46
    3 PART 2
    DOI
    出版ステータスPublished - 2010 3

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 電子工学および電気工学

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