About: Spectroscopic ellipsometry of SrTiO3 crystals applied to antiferrodistortive surface phase transition

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About: Spectroscopic ellipsometry of SrTiO3 crystals applied to antiferrodistortive surface phase transition Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This work is devoted to the ellipsometric study of antiferrodistortive cubic-to-tetragonal phase transition (PT) of SrTiO3 surface. Strong influence of surface defect structure on magnitude and temperature evolutions of surface refractive index related to PT was found and investigated. It is shown that even small surface imperfections result in enhancement and strong changes of the surface refractive index when approaching the temperature of PT. This effect is caused by emergence and evolutions in the surface of the structural changes corresponding to order parameter at the temperatures sufficiently higher than transition temperature in the bulk. In the case of structurally perfect crystal surface, the features of the temperature dependence of surface refractive index appeared to be very small and visible at the temperatures a little smaller than transition temperature for bulk that agrees well with predictions of Kaganov–Omel’yanchuk theory. This work is devoted to the ellipsometric study of antiferrodistortive cubic-to-tetragonal phase transition (PT) of SrTiO3 surface. Strong influence of surface defect structure on magnitude and temperature evolutions of surface refractive index related to PT was found and investigated. It is shown that even small surface imperfections result in enhancement and strong changes of the surface refractive index when approaching the temperature of PT. This effect is caused by emergence and evolutions in the surface of the structural changes corresponding to order parameter at the temperatures sufficiently higher than transition temperature in the bulk. In the case of structurally perfect crystal surface, the features of the temperature dependence of surface refractive index appeared to be very small and visible at the temperatures a little smaller than transition temperature for bulk that agrees well with predictions of Kaganov–Omel’yanchuk theory. (en)
Title	Spectroscopic ellipsometry of SrTiO3 crystals applied to antiferrodistortive surface phase transition Spectroscopic ellipsometry of SrTiO3 crystals applied to antiferrodistortive surface phase transition (en)
skos:prefLabel	Spectroscopic ellipsometry of SrTiO3 crystals applied to antiferrodistortive surface phase transition Spectroscopic ellipsometry of SrTiO3 crystals applied to antiferrodistortive surface phase transition (en)
skos:notation	RIV/68378271:_____/10:00347971!RIV11-GA0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M06002), P(GA202/08/1009), P(GC202/09/J017), P(KAN301370701), Z(AV0Z10100522)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Trepakov, Vladimír Jastrabík, Lubomír Dejneka, Alexandr
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	289153
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/10:00347971
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ellipsometry; optical properties; phase transitions; surfaces and interfaces (en)
http://linked.open.../riv/klicoveSlovo	ellipsometry optical properties phase transitions surfaces and interfaces
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[C224DF175D5A]
http://linked.open...i/riv/nazevZdroje	Physica Status Solidi B-Basic Solid State Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Optical structures, detection systems and relevant technologies for low photon number applications Low Temperature Plasma Deposition of Perovskite Thin Films on Base Metal and Polymer Substrates Nanostructured Macroscopic Systems - Technology and Characterisation Characterization and technology of new perovskite structures
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	247
http://linked.open...iv/tvurceVysledku	Dejneka, Alexandr Jastrabík, Lubomír Trepakov, Vladimír
http://linked.open...ain/vavai/riv/wos	000281092600018
http://linked.open...n/vavai/riv/zamer	Wave and Corpuscular Light Propagation, Optical Materials and Technology
issn	0370-1972
number of pages	5 (xsd:int)

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