High‐resolution electron microscopy study on crystal structures of high‐Tc superconductors

Kenji Hiraga, Takeo Oku, Daisuke Shindo, Makoto Hirabayashi

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)


    Recent studies of high‐resolution electron microscopy on the high‐Tc superconductors of Y‐Ba‐Cu‐O and Bi‐Ca‐Sr‐Cu‐O are presented. The observed images of crystals thinner than 3 nm, taken under conditions that approached the Scherzer defocus condition, directly show the arrangements of cations and oxygen‐vacant positions. The results reveal structural characteristics of the atomic scale; this offers important insights into the origin of the high‐Tc superconductivity. The usefulness of high‐resolution electron microscopy for studying complicated crystal structures is demonstrated for the high‐Tc oxides.

    Original languageEnglish
    Pages (from-to)228-243
    Number of pages16
    JournalJournal of Electron Microscopy Technique
    Issue number3
    Publication statusPublished - 1989 Jul


    • Atomic resolution analysis
    • Bi‐CA‐Sr‐Cu‐O
    • Y‐Ba‐Cu‐O

    ASJC Scopus subject areas

    • Anatomy


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