Magnetic domain observation in writer pole tip for perpendicular recording head by electron holography

J. J. Kim, K. Hirata, Y. Ishida, D. Shindo, Migaku Takahashi, A. Tonomura

    研究成果: Article査読

    29 被引用数 (Scopus)

    抄録

    Electron holographic observations were performed in order to clarify the magnetic domain structures in nanosized pole tips for perpendicular recording heads made from Ni-Fe and Co-Ni-Fe. While an external magnetic field was applied, the magnetic fields leaking from the pole tips as well as the detailed magnetic flux distribution inside them were visualized for the first time. In addition, we report the direct observation result that implies the pole erasure characteristic of the Co-Ni-Fe pole tip. The observations have revealed that electron holography provides useful information for understanding the magnetic characteristics of nanosized pole tips for perpendicular recording heads.

    本文言語English
    論文番号162501
    ジャーナルApplied Physics Letters
    92
    16
    DOI
    出版ステータスPublished - 2008

    ASJC Scopus subject areas

    • 物理学および天文学(その他)

    フィンガープリント

    「Magnetic domain observation in writer pole tip for perpendicular recording head by electron holography」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル