Infrared absorbance of silicene and germanene (Articolo in rivista)

Type
Label
  • Infrared absorbance of silicene and germanene (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4731626 (literal)
Alternative label
  • Friedhelm Bechstedt, Lars Matthes, Paola Gori, Olivia Pulci (2012)
    Infrared absorbance of silicene and germanene
    in Applied physics letters; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Friedhelm Bechstedt, Lars Matthes, Paola Gori, Olivia Pulci (literal)
Pagina inizio
  • 261906 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 100 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 26 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institut für Festkörpertheorie und -optik, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany ETSF and Dipartimento di Fisica, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, I-00133 Rome, Italy ETSF and CNR-ISM, Via Fosso del Cavaliere 100, I-00133 Rome, Italy (literal)
Titolo
  • Infrared absorbance of silicene and germanene (literal)
Abstract
  • Calculating the complex dielectric function for optical interband transitions we show that the two-dimensional crystals silicene and germanene possess the same low-frequency absorbance as graphene. It is determined by the Sommerfeld finestructure constant. Deviations occur for higher frequencies when the first interband transitions outside K or K' contribute. The low-frequency results are a consequence of the honeycomb geometry but do not depend on the group-IV atom, the sheet buckling, and the orbital hybridization. The two-dimensional crystals may be useful as absorption normals in silicon technology. (literal)
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