About: Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://link.aps.org/doi/10.1103/PhysRevLett.107.237401
Description	We study the carrier dynamics in epitaxially grown graphene in the range of photon energies from 10 to 250 meV. The experiments complemented by microscopic modeling reveal that the carrier relaxation is significantly slowed down as the photon energy is tuned to values below the optical-phonon frequency; however, owing to the presence of hot carriers, optical-phonon emission is still the predominant relaxation process. For photon energies about twice the value of the Fermi energy, a transition from pump-induced transmission to pump-induced absorption occurs due to the interplay of interband and intraband processes. We study the carrier dynamics in epitaxially grown graphene in the range of photon energies from 10 to 250 meV. The experiments complemented by microscopic modeling reveal that the carrier relaxation is significantly slowed down as the photon energy is tuned to values below the optical-phonon frequency; however, owing to the presence of hot carriers, optical-phonon emission is still the predominant relaxation process. For photon energies about twice the value of the Fermi energy, a transition from pump-induced transmission to pump-induced absorption occurs due to the interplay of interband and intraband processes. (en)
Title	Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point (en)
skos:prefLabel	Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point (en)
skos:notation	RIV/00216208:11320/11:10104844!RIV12-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP204/10/1020), P(GEGRA/10/E006), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	23
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Orlita, Milan
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	189203
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10104844
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Point; Dirac; Near; Photoexcited; Graphene; Epitaxial; Relaxation; Carrier (en)
http://linked.open.../riv/klicoveSlovo	Point Carrier Dirac Epitaxial Graphene Near Photoexcited Relaxation
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0DA8733FA97F]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	13 (xsd:int)
http://linked.open...vavai/riv/projekt	Magneto-optical spectroscopy of Dirac fermions Epitaxial Graphene Transistor
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	107
http://linked.open...iv/tvurceVysledku	Berger, Claire Heml, Manfred Knorr, Andreas Kossacki, Piotr Malic, Ermin Orlita, Milan Plochocka, Paulina Potemski, Marek Schneider, Harald Sprinkle, Mike Winnerl, Stephan Winzer, Torben de Heer, Walt A.
http://linked.open...ain/vavai/riv/wos	000297417300011
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0031-9007
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevLett.107.237401
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point Carrier Relaxation in Epitaxial Graphene Photoexcited Near the Dirac Point

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