Direct observation of atomic arrangement of high-tc superconductor yba2cu3o6.74 by high-resolution electron microscopy

Kenji Hiraga, Daisuke Shindo, Makoto Hirabayashi, Masae Kikuchi, Katsuyoshi Oh-Ishi, Yasuhiko Syono

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The crystal structure of YBa2Cu3O6.74 superconducting oxide with a transition temperature higher than liquid nitrogen temperature has been studied by high-resolution electron microscopy. The observed high-resolution micrograph is consistent with the oxygen-deficient perovskite structure model proposed in previous work with neutron and X-ray diffraction. In the image, Y, Ba and Cu atoms are represented as dark spots with different contrast depending on their atomic numbers. Unoccupied oxygen atom positions are distinguished from occupied oxygen atom positions as brighter regions.

Original languageEnglish
Pages (from-to)1071-1073
Number of pages3
JournalJapanese journal of applied physics
Volume26
Issue number7A
DOIs
Publication statusPublished - 1987 Jul

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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