The structure of BaK0.03Bi0.97O3 by single-crystal X-ray diffraction

C. Chaillout, J. Chenavas, J. Durr, M. Marezio, L. Schneemeyer

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3 Scopus citations

Abstract

We determined by x-ray diffraction the structure of a slightly K-doped BaBiO3 single-crystal. The best refinements were obtained by describing the structure in the monoclinic 12/m space group similarly to the structure of the undoped compound. In this description the Bi cations occupy two crystallographically independent sites occupied by disproportionated Bi3+ and Bi5+ cations, respectively. These cations are partially ordered. Surprisingly we found that for this low K concentration, the K atoms are located on one of the two Bi sites and are not, as expected, substituting for the Ba cations.

Original languageEnglish
Pages (from-to)697-698
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume185-189
Issue numberPART 1
DOIs
StatePublished - 1 Dec 1991

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