About: Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The results of ion channeling studies of lattice distortions in SrTiO3: Cr single crystals are presented. Two types of single crystals containing the same amount of Cr impurities but differing in stoichiometry have been investigated. The single crystals grown by the Verneuil method have the compositions of standard-grown SrTiO3: Cr (0.05 at % Cr), whereas the single crystals grown with a strontium deficiency and a chromium compensating amount have the composition Sr0.9995TiO3 (0.05 at % Cr). Analysis of the angular channeling spectra indicates that, in crystals of both types, the main defects are Cr impurities located in octahedral sites. In the SrTiO3: Cr crystals, impurity atoms manifest themselves as Cr4+ with tetragonal Jahn-Teller distortions of the surrounding lattice. In the Sr0.9995TiO3: Cr crystals grown with a Sr deficiency, the characteristic displacements of Ti ions in the third coordination sphere of the Jahn-Teller center Cr4+ exhibit the effect of interaction of the center with a neighboring vacancy in the Sr sublattice. The results of ion channeling studies of lattice distortions in SrTiO3: Cr single crystals are presented. Two types of single crystals containing the same amount of Cr impurities but differing in stoichiometry have been investigated. The single crystals grown by the Verneuil method have the compositions of standard-grown SrTiO3: Cr (0.05 at % Cr), whereas the single crystals grown with a strontium deficiency and a chromium compensating amount have the composition Sr0.9995TiO3 (0.05 at % Cr). Analysis of the angular channeling spectra indicates that, in crystals of both types, the main defects are Cr impurities located in octahedral sites. In the SrTiO3: Cr crystals, impurity atoms manifest themselves as Cr4+ with tetragonal Jahn-Teller distortions of the surrounding lattice. In the Sr0.9995TiO3: Cr crystals grown with a Sr deficiency, the characteristic displacements of Ti ions in the third coordination sphere of the Jahn-Teller center Cr4+ exhibit the effect of interaction of the center with a neighboring vacancy in the Sr sublattice. (en)
Title	Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals (en)
skos:prefLabel	Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals Ion channeling study of lattice distortions in chromium-doped SrTiO3 crystals (en)
skos:notation	RIV/68378271:_____/13:00395294!RIV14-GA0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP107/11/1856), P(GAP108/12/1941), P(GBP108/12/G108)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2014
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	81187
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00395294
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ion channeling; lattice distortions; SrTiO3 (en)
http://linked.open.../riv/klicoveSlovo	ion channeling lattice distortions SrTiO3
http://linked.open...odStatuVydavatele	RU - Ruská federace
http://linked.open...ontrolniKodProRIV	[0A01224BCC01]
http://linked.open...i/riv/nazevZdroje	Physics of the Solid State
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Preparation, modification and characterization of materials by radiation Advanced preparation methods and experimental research of doped perovskite thin-film systems for high density energy storages Metal-fullerene nanocomposites and their biological applications
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	55
http://linked.open...iv/tvurceVysledku	Dejneka, Alexandr Jastrabík, Lubomír Lavrentiev, Vasyl Trepakov, Vladimír Vacík, Jiří
http://linked.open...ain/vavai/riv/wos	000321632800013
issn	1063-7834
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1134/S1063783413070202

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