Abstract
A combination of microscopic and macroscopic methods enables an insight into polarization reversal in the copolymer of vinylidene fluoride and trifluoroethylene. Piezoforce microscopy together with switching charge measurements suggests that the polarization reversal is impeded by the restricted geometry of the domain growth. This effect limits the applicability of the conventional switching model of Kolmogorov-Avrami to the first stage of the polarization reversal. The interface-adjacent passive layer is found to impact the switching properties considerably resulting in a retardation of the polarization reversal. Furthermore, an extraordinary dielectric constant increase is observed in the films with a passive layer due to an additional domain wall contribution.
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Dates
Type | When |
---|---|
Created | 17 years, 3 months ago (April 28, 2008, 6:56 p.m.) |
Deposited | 2 years ago (Aug. 1, 2023, 10:55 p.m.) |
Indexed | 4 weeks, 1 day ago (July 30, 2025, 6:50 a.m.) |
Issued | 17 years, 4 months ago (April 15, 2008) |
Published | 17 years, 4 months ago (April 15, 2008) |
Published Online | 17 years, 4 months ago (April 28, 2008) |
Published Print | 17 years, 4 months ago (April 15, 2008) |
@article{Gysel_2008, title={Restricted domain growth and polarization reversal kinetics in ferroelectric polymer thin films}, volume={103}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.2907990}, DOI={10.1063/1.2907990}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Gysel, Roman and Stolichnov, Igor and Tagantsev, Alexander K. and Setter, Nava and Mokrý, Pavel}, year={2008}, month=apr }