Extrinsic Permittivity due to Reversible Domain Wall Motion in Perovskites(ISAF/IWATMD/PFM2014)

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Extrinsic Permittivity due to Reversible Domain Wall Motion in Perovskites(ISAF/IWATMD/PFM2014)

Popis výsledku v původním jazyce

Předneseno na:2014 Joint IEEE International Symposium on the Applications of Ferroelectrics,International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM);12.-16.05.,2014;State College,US In this work,we theoretically analyze the system,where a segment of 180° domain wall interacts with a pinning center in several perovskite single crystals.The analysis has been performed using a numerical model based on the thermodynamic Landau-Ginzburg-Devonshire theory,where the interaction of domain walls with crystal lattice defects has been introduced using an additional term in the free energy of the system.The numerical model has been solved using phase-field simulations for several ferroelectric single crystals:lead titanate,barium titanate,and tetragonal lead zirconate titanate.The numerical results on nonlinear dielectric data indicate a reasonable agreement with the predictions of the analytical models presented earlier

Název v anglickém jazyce

Extrinsic Permittivity due to Reversible Domain Wall Motion in Perovskites(ISAF/IWATMD/PFM2014)

Popis výsledku anglicky

Předneseno na:2014 Joint IEEE International Symposium on the Applications of Ferroelectrics,International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM);12.-16.05.,2014;State College,US In this work,we theoretically analyze the system,where a segment of 180° domain wall interacts with a pinning center in several perovskite single crystals.The analysis has been performed using a numerical model based on the thermodynamic Landau-Ginzburg-Devonshire theory,where the interaction of domain walls with crystal lattice defects has been introduced using an additional term in the free energy of the system.The numerical model has been solved using phase-field simulations for several ferroelectric single crystals:lead titanate,barium titanate,and tetragonal lead zirconate titanate.The numerical results on nonlinear dielectric data indicate a reasonable agreement with the predictions of the analytical models presented earlier

Druh

O - Ostatní výsledky

CEP obor

BM - Fyzika pevných látek a magnetismus

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

2014

Kód důvěrnosti údajů

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