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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Movements of ferroelectric domain walls in barium titanate single crystals studied by means of digital holographic interferometry and nonlinear dielectric measurements
Original language description
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
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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