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

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

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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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Cations
Positive ions
Single crystals
cations
X ray diffraction
single crystals
diffraction
x rays
doped crystals
x ray diffraction
Diffraction
X rays
Atoms
atoms

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Chaillout, C. ; Chenavas, J. ; Durr, J. ; Marezio, M. ; Schneemeyer, Lynn. / The structure of BaK0.03Bi0.97O3 by single-crystal X-ray diffraction. In: Physica C: Superconductivity and its applications. 1991 ; Vol. 185-189, No. PART 1. pp. 697-698.
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The structure of BaK0.03Bi0.97O3 by single-crystal X-ray diffraction. / Chaillout, C.; Chenavas, J.; Durr, J.; Marezio, M.; Schneemeyer, Lynn.

In: Physica C: Superconductivity and its applications, Vol. 185-189, No. PART 1, 01.12.1991, p. 697-698.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The structure of BaK0.03Bi0.97O3 by single-crystal X-ray diffraction

AU - Chaillout, C.

AU - Chenavas, J.

AU - Durr, J.

AU - Marezio, M.

AU - Schneemeyer, Lynn

PY - 1991/12/1

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N2 - 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.

AB - 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.

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