A TEM and neutron diffraction study of the local structure in the rhombohedral phase of lead zirconate titanate

  • J. Ricote
  • , D. L. Corker
  • , R. W. Whatmore
  • , S. A. Impey
  • , A. M. Glazer
  • , J. Dec
  • , K. Roleder

Research output: Other outputpeer-review

Abstract

Transmission electron microscopy and neutron diffraction have been used to characterize ceramics and single crystals from the rhombohedral region of the Pb(Zr1-xTix)O3 (x = 0.06-0.45) phase diagram. Electron diffraction patterns showed the existence of superlattice reflections of the type 1/2{hkl}p, where h = k = l, and 1/2{hk0}p, which are not observed by neutron powder diffraction. The analysis of these reflections also revealed satellite spots around the 1/2{hk0}p, which are associated with periodic antiphase boundaries. The origin of these superlattice reflections is explained by the existence of local regions presenting antiparallel cation displacements, and models for this are suggested and compared with experiment.

Original languageEnglish
Number of pages20
Edition8
Volume10
DOIs
Publication statusPublished - 2 Mar 1998

Publication series

NameJournal of Physics Condensed Matter
PublisherIOP Publishing Ltd.
ISSN (Print)0953-8984

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