Symmetry-allowed atomic displacements in a ferroelastic domain wall of rhombohedral BaTiO3

V. Janovec, D. B. Litvin

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Abstract

Displacements of atoms in a domain wall are confined by local symmetry which can be deduced from the layer group describing the symmetry of the wall. This symmetry confinement specifies completely or partially the direction of atomic displacement at each site and provides relations between displacements at different sites. The approach has been applied to mechanically compatible ferroelastic 71° charged domain wall with central plane at centred oxygen atoms in the rhombohedral phase of BaTiO3.

Original languageEnglish (US)
Pages (from-to)760-768
Number of pages9
JournalPhase Transitions
Volume84
Issue number9-10
DOIs
StatePublished - Sep 1 2011

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All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

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