Character of order-disorder and displacive components in barium titanate

Edward A. Stern

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143 Scopus citations

Abstract

Order-disorder and displacive components characteristics in barium titanate were investigated using nuclear magnetic resonance (NMR) and x-ray absorption fine structure (XAFS) measurements. It was found that the order-disorder component of phase transitions in BaTiO3 consisted of local displacements from cubic symmetry. It was observed that the order-diorder component remained constant in magnitude across phase transitions. The results show that the displacive components in BaTiO3 consists of reorientation of the displacements.

Original languageEnglish
Article number037601
Pages (from-to)037601-1-037601-3
JournalPhysical Review Letters
Volume93
Issue number3
DOIs
StatePublished - 16 Jul 2004
Externally publishedYes

Bibliographical note

Funding Information:
This research was supported by DOE Grant No. DE FGE03 97ER45628. Stimulating discussions with Professor Yizhak Yacoby are gratefully acknowledged.

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