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Description
  • Pomocí kombinace mikroskopických a makroskopických metod byla zkoumána kinetika přepolarizace kopolymeru vinidilene fluoridu a trifluorethylénu. Piezoelektrická atomová skenovaní mikroskopie společně s měřením přepolarizačního náboje indikují, že přepolarizace je zbržděna omezeným růstem feroelektrických domén. Tento efekt je připsán vlivu povrchové pasivní dielektrické vrstvy. Mimoto byla naměřena vysoká hodnota dielektrické konstanty u filmů s povrchovou pasivní dielektrickou vrstvou díky dodatešnému příspěvku od doménových stěn. (cs)
  • 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.
  • 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. (en)
Title
  • Restricted domain growth and polarization reversal kinetics in ferroelectric polymer thin films
  • Omezený růst domén a kinetika přepolarizace ve feroelektrických tenkých polymerních filmech (cs)
  • Restricted domain growth and polarization reversal kinetics in ferroelectric polymer thin films (en)
skos:prefLabel
  • Restricted domain growth and polarization reversal kinetics in ferroelectric polymer thin films
  • Omezený růst domén a kinetika přepolarizace ve feroelektrických tenkých polymerních filmech (cs)
  • Restricted domain growth and polarization reversal kinetics in ferroelectric polymer thin films (en)
skos:notation
  • RIV/46747885:24220/08:#0000915!RIV09-GA0-24220___
http://linked.open...avai/riv/aktivita
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  • P(GA202/06/0411)
http://linked.open...iv/cisloPeriodika
  • 8
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  • 392605
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  • RIV/46747885:24220/08:#0000915
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  • POLY(VINYLIDENE FLUORIDE-TRIFLUOROETHYLENE) COPOLYMER; SCANNING FORCE MICROSCOPY; LANGMUIR-BLODGETT-FILMS; SWITCHING CHARACTERISTICS; VINYLIDENE FLUORIDE; VDF/TRFE COPOLYMER; CAPACITORS; ELECTROSTRICTION; ELECTRODES; THICKNESS (en)
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  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [00886EA6E23A]
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  • JOURNAL OF APPLIED PHYSICS
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http://linked.open...v/svazekPeriodika
  • 103
http://linked.open...iv/tvurceVysledku
  • Mokrý, Pavel
  • Setter, Nava
  • Gysel, Roman
  • Stolichnov, Igor
  • Tagantsev, Alexander K
http://linked.open...ain/vavai/riv/wos
  • 000255456200134
issn
  • 0021-8979
number of pages
http://localhost/t...ganizacniJednotka
  • 24220
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