On the nonlinear dielectric response of ferroelectric polydomain films controlled by crystal lattice defects
Result description
It is known that the dielectric response of polydomain ferroelectrics is to a large extent controlled by the dynamics of domain wall motions. The details of the interaction of the domain walls with crystal lattice defects are presented. The general phenomenological models for the reversible and irreversible movements of the domain walls in the ferroelectric with crystal lattice defects is presented. These phenomenological models will be compared with numerical Phase Field Modeling simulations of the interaction of crystal lattice defects with ferroelectric domain walls. The cases of the both 180 and 90 domain walls are presented.The ageing of dielectric response of BaTiO3 films and we will compare the results of our simulations with experimental data is discussed.
Keywords
Ferroelectric domain wallDefect interactionPermittivityNonlinear dielectric responseBarium Titanate
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
On the nonlinear dielectric response of ferroelectric polydomain films controlled by crystal lattice defects
Original language description
It is known that the dielectric response of polydomain ferroelectrics is to a large extent controlled by the dynamics of domain wall motions. The details of the interaction of the domain walls with crystal lattice defects are presented. The general phenomenological models for the reversible and irreversible movements of the domain walls in the ferroelectric with crystal lattice defects is presented. These phenomenological models will be compared with numerical Phase Field Modeling simulations of the interaction of crystal lattice defects with ferroelectric domain walls. The cases of the both 180 and 90 domain walls are presented.The ageing of dielectric response of BaTiO3 films and we will compare the results of our simulations with experimental data is discussed.
Czech name
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Czech description
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Classification
Type
A - Audiovisual production
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
GAP204/10/0616: Modern piezoelectric perovskites: lattice vibrations and domain walls
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
ISBN
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Place of publication
Bordeaux, France
Publisher/client name
The Institute of Condensed Matter Chemistry of Bordeaux, Bordeaux, France
Version
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Carrier ID
EMF-2011
Result type
A - Audiovisual production
CEP
BM - Solid-state physics and magnetism
Year of implementation
2011