In-plane uniaxial anisotropy of cobalt ferrite films epitaxially grown on MgAl2O4 (110)

Hideto Yanagihara, Mineto Oka, Yuji Utsumi, Tomohiko Niizeki, Kazuya Z. Suzuki, Jun Ichiro Inoue, Eiji Kita

    研究成果: Article査読

    4 被引用数 (Scopus)

    抄録

    We have investigated the magnetic properties of cobalt ferrite films epitaxially grown on MgAl2O4 (110) substrates. The unit cell of the cobalt ferrite film on the substrate with twofold surface symmetry is tetragonally distorted with c/a < 1, and the film exhibits uniaxial magnetic anisotropy parallel to the in-plane [001] orientation, which is similar to what is observed for films grown on MgO (001). The magnetic easy axis is parallel to the in-plane [001] direction and the magnetic hard axis is parallel to the out-of-plane [110] direction. Careful measurement of the magnetic torque indicates that the anisotropy energy can be described by a combination of uniaxial, fourfold, and demagnetization terms. The uniaxial term is comparable with that obtained for cobalt-ferrite films epitaxially grown on MgO (001).

    本文言語English
    論文番号6971508
    ジャーナルIEEE Transactions on Magnetics
    50
    11
    DOI
    出版ステータスPublished - 2014 11月 1

    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

    フィンガープリント

    「In-plane uniaxial anisotropy of cobalt ferrite films epitaxially grown on MgAl2O4 (110)」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