Extended Drude model and role of interband transitions in the midinfrared spectra of pnictides (Articolo in rivista)

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  • Extended Drude model and role of interband transitions in the midinfrared spectra of pnictides (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.83.224514 (literal)
Alternative label
  • L. Benfatto (1); E. Cappelluti (2,1); L. Ortenzi (3); L. Boeri (3) (2011)
    Extended Drude model and role of interband transitions in the midinfrared spectra of pnictides
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • L. Benfatto (1); E. Cappelluti (2,1); L. Ortenzi (3); L. Boeri (3) (literal)
Pagina inizio
  • 224514 (literal)
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  • http://link.aps.org/doi/10.1103/PhysRevB.83.224514 (literal)
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  • 83 (literal)
Rivista
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  • 5 (literal)
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  • 22 (literal)
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  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Institute for Complex Systems (ISC), CNR, U.O.S. Sapienza, and Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 2, I-00185 Rome, Italy 2) Instituto de Ciencia de Materiales de Madrid, ICMM-CSIC, Cantoblanco, E-28049 Madrid, Spain 3) Max-Planck-Institut für Festkörperforschung, Heisenbergstra?e 1, D-70569 Stuttgart, Germany (literal)
Titolo
  • Extended Drude model and role of interband transitions in the midinfrared spectra of pnictides (literal)
Abstract
  • We analyze the outcomes of an extended-Drude-model approach to the optical spectra of pnictides, where the multiband nature of the electronic excitations requires a careful analysis of the role of interband processes in the optical conductivity. Through a direct comparison between model calculations of the intraband optical spectra, experimental data, and first-principles calculations we show that interband transitions give a non-negligible contribution already in the infrared region. This leads to a substantial failure of the extended-Drude-model analysis on the measured optical data without subtraction of interband contributions. (literal)
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