About: Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The infrared spectroscopy (both in transmission as well as reflection mode) was used for quantitative determination of the dielectric response of polar phonon modes in compressively stressed epitaxial and polycrystalline SrTiO3 thin films down to the thickness of the order of several tens nm. Compressed epitaxial SrTiO3 films show appreciably stiffened polar mode frequencies resulting in reduced static permittivity. In polycrystalline thin films the soft mode response is much broader than in epitaxial films, due to the grain boundaries and other in-plane inhomogeneities. The infrared spectroscopy (both in transmission as well as reflection mode) was used for quantitative determination of the dielectric response of polar phonon modes in compressively stressed epitaxial and polycrystalline SrTiO3 thin films down to the thickness of the order of several tens nm. Compressed epitaxial SrTiO3 films show appreciably stiffened polar mode frequencies resulting in reduced static permittivity. In polycrystalline thin films the soft mode response is much broader than in epitaxial films, due to the grain boundaries and other in-plane inhomogeneities. (en) Infračervená spektroskopie (v transmisním a reflexním režimu) byla použita pro kvantitativní určení dielektrické odezvy polárních fononových módu ve stlačených epitaxních a polykrystalických SrTiO3 tenkých vrstvách do tlouštky několika desítek nm. Stlačené epitaxní SrTiO3 vrstvy ukazují vyšší frekvence polárních fononů, které jsou zodpovědné za nižší permitivitu v rovině těchto vrstev. V polykrystalických tenkých vrstvách je měkký mód výrazně širší než v epitaxních vrstvách v důsledku vlivu hranic zrn a jiných nehomogenit. (cs)
Title	Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films Polarní fonony v některých stlačených epitaxních a polykrystalických SrTiO3 tenkých vrstvách (cs) Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films (en)
skos:prefLabel	Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films Polarní fonony v některých stlačených epitaxních a polykrystalických SrTiO3 tenkých vrstvách (cs) Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films (en)
skos:notation	RIV/68378271:_____/09:00325010!RIV09-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KJB100100704), P(OC 101), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	1-3
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Petzelt, Jan Nuzhnyy, Dmitry Kamba, Stanislav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	334029
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/09:00325010
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	soft mode; thin film; infrared spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	soft mode infrared spectroscopy thin film
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[27A481274619]
http://linked.open...i/riv/nazevZdroje	Journal of Electroceramics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/OC%20101 Size effect in ferroelectrics
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	22
http://linked.open...iv/tvurceVysledku	Kamba, Stanislav Petzelt, Jan Setter, N. Yamada, T. Tyunina, M. Levoska, J. Noujni, Dmitri Tagantsev, A. K.
http://linked.open...ain/vavai/riv/wos	000263498800051
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1385-3449
number of pages	5 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films Polar phonons in some compressively stressed epitaxial and polycrystalline SrTiO3 thin films

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