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

0463839 - FZÚ 2017 RIV CH eng M - Monography Chapter
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
R&D Projects: GA ČR GA15-04121S
Institutional support: RVO:68378271
Keywords : ferroelectrics * Ginzburg-Landau-Devonshire model * domain walls * topological defects
Subject RIV: BM - Solid Matter Physics ; Magnetism

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.
Permanent Link: http://hdl.handle.net/11104/0263265