Reference : Order-parameter symmetries of domain walls in ferroelectrics and ferroelastics |
Scientific journals : Article | |||
Physical, chemical, mathematical & earth Sciences : Physics | |||
http://hdl.handle.net/10993/21409 | |||
Order-parameter symmetries of domain walls in ferroelectrics and ferroelastics | |
English | |
Toledano, Pierre [Université de Picardie, Amiens, France > Laboratoire des Systemes Complexes] | |
Guennou, Mael [CRP Gabriel Lippmann, Belvaux, Luxembourg > Departement Science et Analyse des Materiaux] | |
Kreisel, Jens ![]() | |
2014 | |
Physical Review. B | |
89 | |
13 | |
Yes (verified by ORBilu) | |
International | |
1098-0121 | |
[en] The symmetry of boundaries between ferroelectric, ferroelastic, and antiphase domains is a key element for
a theoretical understanding of their properties. Here, we derive this symmetry from their organic relation to the symmetry of the primary transition order parameters. The domain wall symmetries are shown to coincide with directions of the order-parameter n-dimensional vector space, corresponding to sum of the vectors associated with adjacent domain states. This property is illustrated by the determination of the maximal symmetries of domain walls in BaTiO3, LaAlO3, SrTiO3, and Gd2(MoO4)3. Besides, the domain pattern in YMnO3 is interpreted as resulting from an annihilation-creation process, the annihilation of the antiphase domain walls creating six ferroelectric domain walls merging at a single point. | |
http://hdl.handle.net/10993/21409 | |
10.1103/PhysRevB.89.134104 | |
Times Cited: 2 Kreisel, Jens/E-1939-2011 2
Journal Article |
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