Topological Structures in Ferroic Materials: Domain Walls, Vortices and Skyrmions

0463839 - FZÚ 2017 RIV CH eng M - Část monografie knihy
Hlinka, Jiří - Stepkova, Vilgelmina - Márton, Pavel - Ondrejkovič, Petr
Ferroelectric domain walls and their intersections in phase-field simulations.
Topological Structures in Ferroic Materials: Domain Walls, Vortices and Skyrmions. Cham: Springer International Publishing, 2016 - (Seidel, J.), s. 161-180. Springer Series in Materials Science, 228. ISBN 978-3-319-25299-5
Grant CEP: GA ČR GA15-04121S
Institucionální podpora: RVO:68378271
Klíčová slova: ferroelectrics * Ginzburg-Landau-Devonshire model * domain walls * topological defects
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

This chapter deals with phenomenological theoretical description of ferroelectric domain walls in perovskite ferroelectrics in the framework of Ginzburg-Landau-Devonshire theory. Its first part focuses mostly on the Bloch-like ferroelectric walls in comparison with the more standard Ising-like domain wall profiles as well as hypothetical Néel-like domain walls. Its second part is devoted to line defects that occur at the intersection of ferroelectric domain walls. The overview of the various concepts and recent studies is illustrated by polarization profiles obtained using phase-field simulations for the model ferroelectric perovskite crystal BaTiO3.
Trvalý link: http://hdl.handle.net/11104/0263265