Single-phase 60-K bulk superconductor in annealed Ba2YCu307(0.3<<0.4) with correlated oxygen vacancies in the Cu-O chains

R. J. Cava, B. Batlogg, C. H. Chen, E. A. Rietman, S. M. Zahurak, D. Werder

Research output: Contribution to journalArticle

819 Scopus citations

Abstract

Employing a gettered annealing technique, we have prepared homogeneous polycrystalline samples of oxygen-deficient Ba2YCu3O7 for 00.7. Measurements of resistive Tc, resistivity, magnetization, and lattice parameter indicate that a distinct bulk superconducting phase with a Tc of 60 K occurs in the range of 0.3<<0.4. This phase displays partial ordering of oxygen vacancies in the Cu-O chains as found by electron diffraction studies.

Original languageEnglish (US)
Pages (from-to)5719-5722
Number of pages4
JournalPhysical Review B
Volume36
Issue number10
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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