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

16 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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