On the nonlinear dielectric response of ferroelectric polydomain films controlled by crystal lattice defects

Kód výsledku v IS VaVaI

RIV/46747885:24220/11:#0001789 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

On the nonlinear dielectric response of ferroelectric polydomain films controlled by crystal lattice defects

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

On the nonlinear dielectric response of ferroelectric polydomain films controlled by crystal lattice defects

Popis výsledku anglicky

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.

Druh

A - Audiovizuální tvorba

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

GAP204/10/0616: Moderní pizeoelektrické perovskity: kmity krystalové mřížky a doménové stěny

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

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Místo vydání

Bordeaux, France

Název nakladatele resp. objednatele

The Institute of Condensed Matter Chemistry of Bordeaux, Bordeaux, France

Verze

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Identifikační číslo nosiče

EMF-2011