Magnetic domain structures of Nd-Fe-B based permanent magnets studied by electron holography and Lorentz microscopy

Young Gil Park, Daisuke Shindo, Masuo Okada

    研究成果: Article査読

    6 被引用数 (Scopus)

    抄録

    Magnetic domain structures of Nd2Fe14B based permanent magnets were studied by using electron holography and Lorentz microscopy. In a sintered Nd2Fe14B permanent magnet, a domain wall width of a 180° magnetic domain was evaluated to be 5.1 nm by Lorentz microscopy, while the magnetization distribution in the 90° magnetic domain was clarified by electron holography. In overquenched Nd2Fe14B permanent magnets, the sharp difference in the magnetization distribution due to the heat treatment was clarified by electron holography. The different magnetic properties of the magnets was directly attributed to the difference of the magnetization distribution.

    本文言語English
    ページ(範囲)1132-1135
    ページ数4
    ジャーナルUnknown Journal
    41
    9
    DOI
    出版ステータスPublished - 2000 9

    ASJC Scopus subject areas

    • Engineering(all)

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