Nanoscale local structures of rhombohedral symmetry in the orthorhombic and tetragonal phases of BaTiO3 studied by convergent-beam electron diffraction

Kenji Tsuda, Rikiya Sano, Michiyoshi Tanaka

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

The symmetries of the rhombohedral, orthorhombic, and tetragonal phases of barium titanate (BaTiO3) are investigated using convergent-beam electron diffraction. Nanometer-sized local structures with rhombohedral symmetry are observed in both the orthorhombic and tetragonal phases. This indicates that an order-disorder character exists in phase transformations of BaTiO3. The nanostructures in these phases are discussed in terms of an order-disorder model with off-centered Ti in the âŒ

Original languageEnglish
Article number214106
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number21
DOIs
Publication statusPublished - 2012 Dec 17

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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