About: Local structure studies of SrTi16O3 and SrTi18O3./sub

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this work we report on the local structure of Ti in (SrTiO3)-O-16 (STO16) and (SrTiO3)-O-18 (STO18) investigated in the low temperature range (6-300 K) by extended x-ray absorption fine structure and x-ray absorption near edge structure (XANES) spectroscopy at Ti K-edge and by optical second harmonic generation (SHG). By comparing XANES of STO16 and STO18 we have identified the isotopic effect which produces at T < 100K a noticeable difference in the measured mean square relative displacements (MSRD) of Ti-O-1 bonds: while STO16 follow the expected Einstein-like behavior, for STO18 we have measured an increase of MSRD values with decreasing temperature. This is an indication of an increasing off-center position of the Ti atoms in the TiO6 octahedra. In this work we report on the local structure of Ti in (SrTiO3)-O-16 (STO16) and (SrTiO3)-O-18 (STO18) investigated in the low temperature range (6-300 K) by extended x-ray absorption fine structure and x-ray absorption near edge structure (XANES) spectroscopy at Ti K-edge and by optical second harmonic generation (SHG). By comparing XANES of STO16 and STO18 we have identified the isotopic effect which produces at T < 100K a noticeable difference in the measured mean square relative displacements (MSRD) of Ti-O-1 bonds: while STO16 follow the expected Einstein-like behavior, for STO18 we have measured an increase of MSRD values with decreasing temperature. This is an indication of an increasing off-center position of the Ti atoms in the TiO6 octahedra. (en)
Title	Local structure studies of SrTi16O3 and SrTi18O3./sub Local structure studies of SrTi16O3 and SrTi18O3./sub (en)
skos:prefLabel	Local structure studies of SrTi16O3 and SrTi18O3./sub Local structure studies of SrTi16O3 and SrTi18O3./sub (en)
skos:notation	RIV/68378271:_____/14:00441459!RIV15-GA0-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/12/1941)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Trepakov, Vladimír 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	26467
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/14:00441459
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	near-edge structure; K phase-transition; soft phonon modes; strontium-titanate (en)
http://linked.open.../riv/klicoveSlovo	K phase-transition near-edge structure soft phonon modes strontium-titanate
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[A7B234EC7678]
http://linked.open...i/riv/nazevZdroje	Physica Scripta
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced preparation methods and experimental research of doped perovskite thin-film systems for high density energy storages
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	89
http://linked.open...iv/tvurceVysledku	Dejneka, Alexandr Trepakov, Vladimír Rocca, F. Anspoks, A. Bocharov, D. Itoh, M. Purans, J. Sarakovskis, A.
http://linked.open...ain/vavai/riv/wos	000333449400003
issn	0031-8949
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0031-8949/89/04/044002

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