Crystal structure of Ba5In2Al2ZrO13

R. V. Shpanchenko, A. M. Abakumov, E. V. Antipov, L. M. Kovba

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The crystal structure of anion-deficient hexagonal perovskite-like oxide Ba5In2Al2ZrO3 (a = 5.8707(7) A ̊, a = 24.445(3) A ̊, space group P63/mmc, z = 2) was determined using single crystal data. A least-squares refinement gave conventional and weighted R factors of 0.037 and 0.040 respectively. This structure is a 10L (cchcc)2 sequence of close-packed BaO3 and BaO□2 layers. The main feature of the structure is joint occupation of two 4f positions by In and Al atoms, which result in disordering of oxygen atoms and vacancies in the BaO□2 layers. It was shown that this structure can be considered formally as a result of the intergrowth of Ba2InAlO5-like blocks and BaZrO3 ones along the c-axis of the hexagonal supercell.

Original languageEnglish
Pages (from-to)185-188
Number of pages4
JournalJournal of Alloys and Compounds
Volume206
Issue number2
DOIs
Publication statusPublished - May 1994
Externally publishedYes

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