About: Experimental observation of spin-dependent electron many-body effects in CdTe

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1063/1.4892399
Description	In semiconductors, the spin degree of freedom is usually disregarded in the theoretical treatment of electron many-body effects such as band-gap renormalization and screening of the Coulomb enhancement factor. Nevertheless, as was observed experimentally in GaAs, not only the single-particle phase-space filling but also many-body effects are spin sensitive. In this paper, we report on time- and polarization-resolved differential transmission pump-probe measurements in CdTe, which has the same zincblende crystal structure but different material parameters compared to that of GaAs. We show experimentally that at room temperature in CdTe-unlike in GaAs-the pump-induced decrease of transmission due to the band-gap renormalization can even exceed the transmission increase due to the phase-space filling, which enables to measure directly the spin-sensitivity of the band-gap renormalization. We also observed that the influence of the band-gap renormalization is more prominent at low temperatures. (C) 2014 AIP Publishing LLC. In semiconductors, the spin degree of freedom is usually disregarded in the theoretical treatment of electron many-body effects such as band-gap renormalization and screening of the Coulomb enhancement factor. Nevertheless, as was observed experimentally in GaAs, not only the single-particle phase-space filling but also many-body effects are spin sensitive. In this paper, we report on time- and polarization-resolved differential transmission pump-probe measurements in CdTe, which has the same zincblende crystal structure but different material parameters compared to that of GaAs. We show experimentally that at room temperature in CdTe-unlike in GaAs-the pump-induced decrease of transmission due to the band-gap renormalization can even exceed the transmission increase due to the phase-space filling, which enables to measure directly the spin-sensitivity of the band-gap renormalization. We also observed that the influence of the band-gap renormalization is more prominent at low temperatures. (C) 2014 AIP Publishing LLC. (en)
Title	Experimental observation of spin-dependent electron many-body effects in CdTe Experimental observation of spin-dependent electron many-body effects in CdTe (en)
skos:prefLabel	Experimental observation of spin-dependent electron many-body effects in CdTe Experimental observation of spin-dependent electron many-body effects in CdTe (en)
skos:notation	RIV/00216208:11320/14:10285413!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP204/12/0853)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Horodyská, Petra Novotný, Tomáš Němec, Petr Malý, Petr Trojánek, František
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	15880
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10285413
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gaas; spectra; dynamics; bulk cdte; quantum-wells; room-temperature; laser-excited semiconductors; temperature optical nonlinearities (en)
http://linked.open.../riv/klicoveSlovo	gaas quantum-wells dynamics spectra room-temperature bulk cdte laser-excited semiconductors temperature optical nonlinearities
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[76F30C2DB47A]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Physics
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Ultrafast optical manipulation of magnetic order in semiconductors
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	116
http://linked.open...iv/tvurceVysledku	Němec, Petr Novotný, Tomáš Malý, Petr Trojánek, František Horodyská, Petra
http://linked.open...ain/vavai/riv/wos	000341178900049
issn	0021-8979
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.4892399
http://localhost/t...ganizacniJednotka	11320

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