Symmetry-allowed atomic displacements in a ferroelastic domain wall of rhombohedral BaTiO.sub.3./sub..

0366350 - FZÚ 2012 RIV GB eng J - Journal Article
Janovec, Václav - Litvin, D. B.
Symmetry-allowed atomic displacements in a ferroelastic domain wall of rhombohedral BaTiO₃.
Phase Transitions. Roč. 84, 9-10 (2011), s. 760-768. ISSN 0141-1594. E-ISSN 1029-0338
R&D Projects: GA ČR GAP204/10/0616
Institutional research plan: CEZ:AV0Z10100520
Keywords : symmetry * domain walls * BaTiO₃
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.006, year: 2011

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 71deg charged domain wall with central plane at centred oxygen atoms in the rhombohedral phase of BaTiO3.
Permanent Link: http://hdl.handle.net/11104/0201391