Microstructural analysis of obliquely evaporated Co-CoO tape using TEM and EELS

H. Tachikawa, Yasukazu Murakami, T. Ito, Y. Iwasaki, D. Shindo

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)


    Microstructure of Co-CoO obliquely evaporated tape was studied by energy-filtered electron microscopy combined with high-resolution electron microscopy. Elemental mapping with electron energy-loss spectroscopy revealed that the specimen had a columnar internal structure, in which two types of columns, i.e. Co-rich and O-rich ones, were present. They were identified to be the columns containing mainly Co and CoO, respectively, by image processing of high-resolution electron microscope images. Although the size of Co particles was small, i.e. 5-20 nm, several particles gathered to form clusters within each Co-rich column. The c-axis of the particles inside the cluster was almost parallel to the longitudinal direction of the Co-rich column.

    Original languageEnglish
    Pages (from-to)349-355
    Number of pages7
    JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
    Issue number5
    Publication statusPublished - 2001


    • Electron energy-loss spectroscopy
    • Elemental mapping
    • Energy filter
    • High-resolution electron microscopy
    • Magnetic materials

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys
    • Materials Chemistry


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