Crystal structure of pseudorhombohedral InFe1-xTixO3+x/2(x = 2/3)

Yuichi Michiue*, Mitsuko Onoda, Akiteru Watanabe, Mamoru Watanabe, Francisco Brown, Noboru Kimizuka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The structure of pseudorhombohedral-type InFe1-xTixO3-x/2 (x = 2/3) was refined by Rietveld profile fitting. The crystal is a commensurate member of a series in a solution range on InFeO3-In2Ti2O7 including incommensurate structures. The structure with the unit cell of a = 5.9188(1), b = 10.1112(2), and c = 6.3896(1) Å, β = 108.018(2)°, and a space group P 21/a is the alternate stacking of an edge-shared InO6 octahedral layer and an Fe/Ti-O plane along c*. Metal sites on the Fe/Ti-O plane are surrounded by four oxygen atoms on the Fe/Ti-O plane and two axial ones. Electric conductivities of the order 10-4 S/cm were observed for the samples at 1000 K, while the oxide ion transport number is almost zero as no electromotive force was detected by an oxygen concentration cell.

Original languageEnglish
Article number99425
Pages (from-to)455-458
Number of pages4
JournalJournal of Solid State Chemistry
Issue number2
StatePublished - 2002


  • Composite crystal
  • InFeTiO
  • Rietveld analysis
  • Superstructure


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