About: Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3.

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About: Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The formation of the photopolaronic excitons has been detected experimentally by means of the photoinduced EPR studies of KTa0.988Nb0.012O3 crystals.The signal is attributed to the single trapped charge carriers.The anisotropic spectrum is caused by the axial centers oriented along the C4 axes.The anisotropic spectrum is attributed to the Nb4+-O- polaronic excitons.The temperature dependence of the anisotropic component is characterized by two activation energies: the internal dynamics activation energy (3.7 meV), which makes the EPR spectrum unobservable above 10 K, and the destruction energy (52 meV).By comparing the anisotropic photo-EPR spectrum and the photoinduced optical absorption temperature dependencies, we found that the Nb4+-O- polaronic excitons also manifested themselves via the wide absorption band at 0.7 eV arising under ultraviolet light excitation.Klíčová slova: photoinduced EPR, Nb4+-O- polaronic excitons , KTa0.988Nb0.012O3 The formation of the photopolaronic excitons has been detected experimentally by means of the photoinduced EPR studies of KTa0.988Nb0.012O3 crystals.The signal is attributed to the single trapped charge carriers.The anisotropic spectrum is caused by the axial centers oriented along the C4 axes.The anisotropic spectrum is attributed to the Nb4+-O- polaronic excitons.The temperature dependence of the anisotropic component is characterized by two activation energies: the internal dynamics activation energy (3.7 meV), which makes the EPR spectrum unobservable above 10 K, and the destruction energy (52 meV).By comparing the anisotropic photo-EPR spectrum and the photoinduced optical absorption temperature dependencies, we found that the Nb4+-O- polaronic excitons also manifested themselves via the wide absorption band at 0.7 eV arising under ultraviolet light excitation.Klíčová slova: photoinduced EPR, Nb4+-O- polaronic excitons , KTa0.988Nb0.012O3 (en)
Title	Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3. Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3. (en)
skos:prefLabel	Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3. Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3. (en)
skos:notation	RIV/68378271:_____/11:00368223!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(1M06002), Z(AV0Z10100522)
http://linked.open...iv/cisloPeriodika	17
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	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	198781
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00368223
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photoinduced EPR; Nb4+-O- polaronic excitons; KTa0.988Nb0.012O3 (en)
http://linked.open.../riv/klicoveSlovo	KTa0.988Nb0.012O3 Nb4+-O- polaronic excitons photoinduced EPR
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[D914154AA30C]
http://linked.open...i/riv/nazevZdroje	Physical Review. B
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Optical structures, detection systems and relevant technologies for low photon number applications
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	84
http://linked.open...iv/tvurceVysledku	Dejneka, Alexandr Jastrabík, Lubomír Gracheva, I. N. Gubaev, A. I. Rodionov, A. A. Salakhov, M. K. Syrnikov, P. P. Trepakov, V. A. Yusupov, R. V.
http://linked.open...ain/vavai/riv/wos	000297294500005
http://linked.open...n/vavai/riv/zamer	Wave and Corpuscular Light Propagation, Optical Materials and Technology
issn	1098-0121
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevB.84.174118
is http://linked.open...avai/riv/vysledek of	Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3. Experimental manifestations of the Nb4+-O- polaronic excitons in KTa0.988Nb0.012O3.

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