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Ferroelastic domain walls in barium titanate - quantitative phenomenological model

SYSNO ASEP	0322239
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Ferroelastic domain walls in barium titanate - quantitative phenomenological model
Title	Feroelastické doménové stěny v titanátu bária - kvantitativní fenomenologický model
Author(s)	Hlinka, Jiří (FZU-D)_{RID, ORCID} Márton, Pavel (FZU-D)_{RID, ORCID}
Source Title	Integrated Ferroelectrics - ISSN 1058-4587 Roč. 101, č. 1 (2009), s. 50-62
Number of pages	13 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	ferroelectric and ferroelastic domains ; BaTiO₃ ; Ginzburg-Landau theory
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GA202/06/0411 GA ČR - Czech Science Foundation (CSF)
	GD202/05/H003 GA ČR - Czech Science Foundation (CSF)
	1ET300100401 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z10100520 - FZU-D (2005-2011)
UT WOS	000261941900008
DOI	10.1080/10584580802451611
Annotation	Properties of ferroelecric domain walls corresponding to rotations of the spontaneous electric polarization by 90 or 180 degrees are investigated in the framework of material-specific generalized Ginzburg-Landau-Devonshire model involving long-range dipole-dipole interactions. Thickness and surface energy for these domain walls in the tetragonal and the orthorhombic phases of BaTiO3 are evaluated in the charge-free approximation using model parameters determined from independent experiments. Both types of domain walls occur spontaneously in domain pattern simulations, although in the orthorhombic phase the 180-degree domain walls are very rare. The simulated domain patterns and domain wall properties are discussed and the relation to the pronounced anisotropy of the gradient term is pointed out.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2009

Number of the records: 1