Evolution of the domain topology in a ferroelectric.
Phys Rev Lett
; 110(16): 167601, 2013 Apr 19.
Article
em En
| MEDLINE
| ID: mdl-23679638
ABSTRACT
Topological materials, including topological insulators, magnets with Skyrmions and ferroelectrics with topological vortices, have recently attracted phenomenal attention in the materials science community. Complex patterns of ferroelectric domains in hexagonal REMnO(3) (RE rare earths) turn out to be associated with the macroscopic emergence of Z(2)×Z(3) symmetry. The results of our depth profiling of crystals with a self-poling tendency near surfaces reveal that the partial dislocation (i.e., wall-wall) interaction, not the interaction between vortices and antivortices, is primarily responsible for topological condensation through the macroscopic breaking of the Z(2) symmetry.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Óxidos
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Compostos de Manganês
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Metais Terras Raras
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2013
Tipo de documento:
Article