Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1103/PhysRevLett.112.257401 (literal)

Alternative label

• Ulstrup, Soren; Johannsen, Jens Christian; Cilento, Federico; Miwa, Jill A.; Crepaldi, Alberto; Zacchigna, Michele; Cacho, Cephise; Chapman, Richard; Springate, Emma; Mammadov, Samir; Fromm, Felix; Raidel, Christian; Seyller, Thomas; Parmigiani, Fulvio; Grioni, Marco; King, Phil D. C.; Hofmann, Philip (2014)
  Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene
  in Physical review letters (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ulstrup, Soren; Johannsen, Jens Christian; Cilento, Federico; Miwa, Jill A.; Crepaldi, Alberto; Zacchigna, Michele; Cacho, Cephise; Chapman, Richard; Springate, Emma; Mammadov, Samir; Fromm, Felix; Raidel, Christian; Seyller, Thomas; Parmigiani, Fulvio; Grioni, Marco; King, Phil D. C.; Hofmann, Philip (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 112 (literal)

Rivista

• Physical review letters (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 5 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 25 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Aarhus University; Ecole Polytechnique Federale de Lausanne; Sincrotrone Trieste; IOM CNR Lab TASC; STFC Rutherford Appleton Laboratory; Tech Univ Chemnitz; University of Trieste; University of St Andrews (literal)

Titolo

• Ultrafast Dynamics of Massive Dirac Fermions in Bilayer Graphene (literal)

Abstract

• Bilayer graphene is a highly promising material for electronic and optoelectronic applications since it is supporting massive Dirac fermions with a tunable band gap. However, no consistent picture of the gap's effect on the optical and transport behavior has emerged so far, and it has been proposed that the insulating nature of the gap could be compromised by unavoidable structural defects, by topological in-gap states, or that the electronic structure could be altogether changed by many-body effects. Here, we directly follow the excited carriers in bilayer graphene on a femtosecond time scale, using ultrafast time- and angle-resolved photoemission. We find a behavior consistent with a single-particle band gap. Compared to monolayer graphene, the existence of this band gap leads to an increased carrier lifetime in the minimum of the lowest conduction band. This is in sharp contrast to the second substate of the conduction band, in which the excited electrons decay through fast, phonon-assisted interband transitions. (literal)

Prodotto di

• MD.P04.013.001 Studio della struttura elettronica e delle proprietà magnetiche di sistemi inorganici, organici e nanostrutturati (MD.P04.013.002) (Modulo)

Autore CNR

• MICHELE ZACCHIGNA (Persona)

Incoming links:

Autore CNR di

• MICHELE ZACCHIGNA (Persona)

Prodotto

• MD.P04.013.001 Studio della struttura elettronica e delle proprietà magnetiche di sistemi inorganici, organici e nanostrutturati (MD.P04.013.002) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review letters (Rivista)