Three-dimensional observation of magnetic vortex cores in stacked ferromagnetic discs

Toshiaki Tanigaki, Yoshio Takahashi, Tomokazu Shimakura, Tetsuya Akashi, Ruriko Tsuneta, Akira Sugawara, Daisuke Shindo

    研究成果: Article査読

    65 被引用数 (Scopus)

    抄録

    Electron holographic vector field electron tomography visualized three-dimensional (3D) magnetic vortices in stacked ferromagnetic discs in a nanoscale pillar. A special holder with two sample rotation axes, both without missing wedges, was used to reduce artifacts in the reconstructed 3D magnetic vectors. A 1 MV holography electron microscope was used to precisely measure the magnetic phase shifts. Comparison of the observed 3D magnetic field vector distributions in the magnetic vortex cores with the results of micromagnetic simulations based on the Landau-Lifshitz-Gilbert equation showed that the proposed technique is well suited for direct 3D visualization of the spin configurations in magnetic materials and spintronics devices.

    本文言語English
    ページ(範囲)1309-1314
    ページ数6
    ジャーナルNano Letters
    15
    2
    DOI
    出版ステータスPublished - 2015 2月 11

    ASJC Scopus subject areas

    • バイオエンジニアリング
    • 化学 (全般)
    • 材料科学(全般)
    • 凝縮系物理学
    • 機械工学

    フィンガープリント

    「Three-dimensional observation of magnetic vortex cores in stacked ferromagnetic discs」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