Dielectric Relaxation in Polymer Ferroelectric Nanostructures

The dielectric dispersion of ultrathin films and nanocrystals of the poly(vinylidene fluoride-trifluoroethylene) copolymer with the 70/30 composition has been studied. It has been found that the phase transition in ferroelectric nanocrystals takes place at T = 100°C. The observed broad temperature h...

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Bibliographic Details
Published in:Ferroelectrics 2010-01, Vol.400 (1), p.287-293
Main Authors: Verkhovskaya, K. A., Plakseev, A. A., Lotonov, A. M., Gavrilova, N. D., Yudin, S. G.
Format: Article
Language:English
Subjects:
Copolymers
Dielectric properties
dielectric relaxation
Ferroelectric materials
ferroelectric polymer, nanocrystals
Ferroelectricity
Ferroelectrics
Langmuir-Blodgett films
Nanocomposites
Nanocrystals
Nanomaterials
Nanostructure
Phase transformations
Phase transitions
Polymers
Temperature
Thin films
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Summary:The dielectric dispersion of ultrathin films and nanocrystals of the poly(vinylidene fluoride-trifluoroethylene) copolymer with the 70/30 composition has been studied. It has been found that the phase transition in ferroelectric nanocrystals takes place at T = 100°C. The observed broad temperature hysteresis indicates the occurrence of a first order phase transition.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2010.505841