Structural characterization of Ba2YCu3O7 by high resolution transmission electron microscopy

A. Ourmazd, John Spence, J. M. Zuo, C. H. Li

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

We show that high‐resolution transmission electron microscopy can be used directly to reveal the structure of the metal framework and its defects in Ba2YCu3O7. The use of dynamical effects under carefully selected and controlled conditions allows the detection of long‐range order in the disposition of the oxygen vacancies, but inevitable misalignments make the quantification of the order parameter difficult. Specimen preparation methods are compared, and a wide‐angle convergent‐beam pattern is demonstrated.

Original languageEnglish (US)
Pages (from-to)251-262
Number of pages12
JournalJournal of electron microscopy technique
Volume8
Issue number3
DOIs
StatePublished - Mar 1988

Keywords

  • Convergent beam electron diffraction
  • Long‐range order
  • Microstructure
  • Superconductivity

ASJC Scopus subject areas

  • Anatomy

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