Possibility of slater-mode condensation in ferroelectric SrTi 18O3

Y. Noda, K. Mochizuki, H. Kimura, M. Itoh, T. Kyomen, R. Wang

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Neutron diffraction experiments were performed to clarify the nature of the ferroelectric phase transition of 18O isotope exchanged SrTiO3. We found clear evidence of the change of the Bragg intensity at the phase transition temperature; presumably the symmetry is orthorhombic below the transition temperature. The preliminary structure analysis in the ferroelectric phase indicates that the displacement pattern is interpreted by the combination of R25 mode rotation and the so-called Slater mode condensation of the TiO6 octahedron.

Original languageEnglish
Pages (from-to)69-72
Number of pages4
JournalJournal of the Korean Physical Society
Volume46
Issue number1
Publication statusPublished - 2005 Jan

Keywords

  • Isotope effect
  • Neutron diffraction
  • Phase transition
  • STO18
  • SrTiO
  • Structure analysis

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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