EXAFS and neutron diffraction studies of local and average structures for YBa2Cu2.8Zn0.2O7-δ

H. Maeda, A. Koizumi, N. Bamba, E. Takayama-Muromachi, F. Izumi, H. Asano, K. Shimizu, H. Moriwaki, H. Maruyama, Y. Kuroda, H. Yamazaki

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72 Citations (Scopus)

Abstract

The local and average structures of YBa2Cu3O7-δ doped with Zn were studied by the combined use of extended X-ray absorption fine structure (EXAFS) analysis and Rietveld refinement of neutron powder diffraction data. X-ray absorption measurements at the Zn K-edge indicate that the Zn atom has four short (2.02 Å) and one long (2.25 Å) Zn-O bonds. The chemical environments of the Cu and Y atoms agree well with the structure determined by neutron diffraction. The mechanism of Tc of depression accompanying Zn doping is discussed.

Original languageEnglish
Pages (from-to)483-490
Number of pages8
JournalPhysica C: Superconductivity and its applications
Volume157
Issue number3
DOIs
Publication statusPublished - Mar 1 1989

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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