About: Far infrared and Raman spectroscopy of ferroelectric soft mode in SrTiO3 thin films and ceramics

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About: Far infrared and Raman spectroscopy of ferroelectric soft mode in SrTiO3 thin films and ceramics Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The ferroelectric soft mode behaviour was studied in several SrTiO3 (ST) films on sapphire substrates using far infrared (FIR) transmission measurements and in the bulk ST ceramics using Raman and FIR reflectivity measurements down to 15 K. The recently established dramatic differences in softening and soft mode width compared to single crystal behaviour were confirmed in all the cases. Clear evidence of polar cluster appearance in the pure bulk ceramics indicates that the main reason for the observed differences in thin films are inhomogeneities due to the appearance of polar clusters or even a macroscopic ferroelectric transition at about 130 K in the case of well oriented injection MOCVD film. The ferroelectric soft mode behaviour was studied in several SrTiO3 (ST) films on sapphire substrates using far infrared (FIR) transmission measurements and in the bulk ST ceramics using Raman and FIR reflectivity measurements down to 15 K. The recently established dramatic differences in softening and soft mode width compared to single crystal behaviour were confirmed in all the cases. Clear evidence of polar cluster appearance in the pure bulk ceramics indicates that the main reason for the observed differences in thin films are inhomogeneities due to the appearance of polar clusters or even a macroscopic ferroelectric transition at about 130 K in the case of well oriented injection MOCVD film. (en)
Title	Far infrared and Raman spectroscopy of ferroelectric soft mode in SrTiO3 thin films and ceramics Far infrared and Raman spectroscopy of ferroelectric soft mode in SrTiO3 thin films and ceramics (en)
skos:prefLabel	Far infrared and Raman spectroscopy of ferroelectric soft mode in SrTiO3 thin films and ceramics Far infrared and Raman spectroscopy of ferroelectric soft mode in SrTiO3 thin films and ceramics (en)
skos:notation	RIV/68407700:21340/01:04083530!RIV/2004/MSM/213404/N
http://linked.open.../vavai/riv/strany	703 ; 712
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z1010914), Z(AV0Z1048901), Z(MSM 113200002), Z(MSM 210000021)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Pokorný, Jan
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	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	680223
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/01:04083530
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	DIELECTRIC-PROPERTIES, PHASE-TRANSITIONS, MICROSTRUCTURE, MORPHOLOGY, CONSTANT, DEFECTS (en)
http://linked.open.../riv/klicoveSlovo	MICROSTRUCTURE DIELECTRIC-PROPERTIES CONSTANT PHASE-TRANSITIONS DEFECTS MORPHOLOGY
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[EBECA1C050FE]
http://linked.open...i/riv/nazevZdroje	Integrated Ferroelectrics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	15 (xsd:int)
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	32
http://linked.open...iv/tvurceVysledku	Pokorný, Jan Rafaja, D. Vaněk, P. Peřina, V. Hoffmann, S. Lindner, J. Kamba, S. Gregor, I. Savinov, M. Bovtun, V. Waser, R. Ostapchuk, T. Petzelt, J. Rychetský, I. Porokhonsky, V.
http://linked.open...n/vavai/riv/zamer	Theoretical and experimental investigation of atomic nuclei and exploitation of nuclear methods in interdisciplinary research Experimentální a teoretický výzkum kondenzovaných systémů s význačnými fyzikálními vlastnostmi http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20113200002 http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20210000021
issn	1058-4587
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	21340

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