Evidence for a non-rhombohedral average structure in the lead-free piezoelectric material Na0.5Bi0.5TiO3

S. Gorfman, P. A. Thomas

Research output: Contribution to journalArticlepeer-review

Abstract

The potential lead-free piezoelectric material sodium bismuth titanate, Na0.5Bi0.5TiO3, was investigated by means of high-resolution single-crystal X-ray diffractometry. The splitting of Bragg peaks observed in the high-resolution reciprocal-space maps suggests that the average structure of Na0.5Bi0.5TiO3 has lower than rhombohedral symmetry. This observation is contrary to the commonly adopted model, which has followed from many previous analyses of neutron and X-ray powder diffraction data.

Original languageEnglish
Pages (from-to)1409-1414
Number of pages6
JournalJournal of Applied Crystallography
Volume43
Issue number6
DOIs
StatePublished - Dec 2010
Externally publishedYes

Keywords

  • lead-free piezoelectric materials
  • sodium bismuth titanate

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