Movements of ferroelectric domain walls in barium titanate single crystals studied by means of digital holographic interferometry and nonlinear dielectric measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F15%3A00452840" target="_blank" >RIV/61389021:_____/15:00452840 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Movements of ferroelectric domain walls in barium titanate single crystals studied by means of digital holographic interferometry and nonlinear dielectric measurements

Popis výsledku v původním jazyce

European meeting on Ferroelectricity/13./; 28.06. - 03.07.2015;Porto,Portugal It is known that the permittivity of ferroelectric polydomain films and single crystals is enhanced by reversible movement of domain walls. It is believed that the origin of the reversible domain wall motion in weak AC electric fields is due to the interaction of the domain walls with pinning centers in the ferroelectric bulk. There exist two mechanisms of reversible domain wall movement: first, the bending of free segments ofthe domain wall and, second, the planar movement of the whole domain wall. Recently, the nonlinear dielectric response of the two mechanisms of the domain wall movement has been analyzed theoretically [1, 2]. It has been shown that the both mechanisms of the reversible domain wall movement introduce different features into the nonlinear dielectric response. Therefore, it is possible to identify mechanisms that dominates the ferroelectric domain wall movement by means of nonlinear

Název v anglickém jazyce

Movements of ferroelectric domain walls in barium titanate single crystals studied by means of digital holographic interferometry and nonlinear dielectric measurements

Popis výsledku anglicky

European meeting on Ferroelectricity/13./; 28.06. - 03.07.2015;Porto,Portugal It is known that the permittivity of ferroelectric polydomain films and single crystals is enhanced by reversible movement of domain walls. It is believed that the origin of the reversible domain wall motion in weak AC electric fields is due to the interaction of the domain walls with pinning centers in the ferroelectric bulk. There exist two mechanisms of reversible domain wall movement: first, the bending of free segments ofthe domain wall and, second, the planar movement of the whole domain wall. Recently, the nonlinear dielectric response of the two mechanisms of the domain wall movement has been analyzed theoretically [1, 2]. It has been shown that the both mechanisms of the reversible domain wall movement introduce different features into the nonlinear dielectric response. Therefore, it is possible to identify mechanisms that dominates the ferroelectric domain wall movement by means of nonlinear

Druh

O - Ostatní výsledky

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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