Features of the Jahn-Teller displacements in LaTiO3

M. Arao, Y. Inoue, Y. Koyama

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5 Citations (Scopus)


Atomic displacements involved in a crystal structure of LaTiO3 have been investigated by means of transmission electron microscopy mainly at room temperature. Electron diffraction patterns taken from LaTiO3 were found to be characterized by the presence of the forbidden reflections for the Pnma structure. The extinction rule of these reflections including fundamental ones indicated that a space group of the crystal structure was determined to be P21/a with a monoclinic symmetry. A characteristic feature of the P21/a structure is that there exist the Jahn-Teller atomic displacement with q = 〈1/21/2 0〉c as well as the Jahn-Teller distortion. An additional displacement with q = 〈1/2 0 0〉c should also be needed.

Original languageEnglish
Pages (from-to)995-997
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Issue number6-8
Publication statusPublished - 2002


  • A. Electronic materials
  • A. Magnetic materials
  • C. Electron microscopy
  • D. Crystal structure

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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