About: Tuning of dielectric properties of SrTiO3 in the terahertz range

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Tuning of the dielectric permittivity spectra of strontium titanate (SrTiO3) single crystals in an external electric field is investigated between 90 and 300 K by means of terahertz time-domain spectroscopy. Application of the electric bias leads to an appreciable tuning of the permittivity observed up to room temperature both in the parallel and perpendicular directions to the bias field. The observed behavior is interpreted in terms of soft-mode hardening due to the anharmonic character of its potential. No additional low-frequency relaxation mode was observed. A weak temperature dependence of the anharmonic coefficients was found in agreement with previously published low-temperature data. Tuning of the dielectric permittivity spectra of strontium titanate (SrTiO3) single crystals in an external electric field is investigated between 90 and 300 K by means of terahertz time-domain spectroscopy. Application of the electric bias leads to an appreciable tuning of the permittivity observed up to room temperature both in the parallel and perpendicular directions to the bias field. The observed behavior is interpreted in terms of soft-mode hardening due to the anharmonic character of its potential. No additional low-frequency relaxation mode was observed. A weak temperature dependence of the anharmonic coefficients was found in agreement with previously published low-temperature data. (en)
Title	Tuning of dielectric properties of SrTiO3 in the terahertz range Tuning of dielectric properties of SrTiO3 in the terahertz range (en)
skos:prefLabel	Tuning of dielectric properties of SrTiO3 in the terahertz range Tuning of dielectric properties of SrTiO3 in the terahertz range (en)
skos:notation	RIV/68378271:_____/11:00369878!RIV12-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/09/0430), P(GD202/09/H041), P(IAA100100907), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	17
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kužel, Petr Němec, Hynek Rychetský, Ivan Kadlec, Filip Kadlec, Christelle Skoromets, Volodymyr
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	236206
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00369878
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	strontium titanate; terahertz spectroscopy; anharmonic coefficient (en)
http://linked.open.../riv/klicoveSlovo	strontium titanate terahertz spectroscopy anharmonic coefficient
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[3B356984656C]
http://linked.open...i/riv/nazevZdroje	Physical Review. B
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	Actively tunable structures and metamaterials for the terahertz range Physics of nanostructures Macroscopic properties of mesoscopically nonhomogeneous systems
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	84
http://linked.open...iv/tvurceVysledku	Fattakhova-Rohlfing, D. Kužel, Petr Müller, V. Němec, Hynek Rychetský, Ivan Skoromets, Volodymyr Kadlec, Christelle Kadlec, Filip Moch, P. Panaitov, G.
http://linked.open...ain/vavai/riv/wos	000297294600002
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1098-0121
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevB.84.174121
is http://linked.open...avai/riv/vysledek of	Tuning of dielectric properties of SrTiO3 in the terahertz range Tuning of dielectric properties of SrTiO3 in the terahertz range

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