Multiband conductivity and a multigap superconducting phase in V3Si films from optical measurements at terahertz frequencies (Articolo in rivista)

Type
Label
  • Multiband conductivity and a multigap superconducting phase in V3Si films from optical measurements at terahertz frequencies (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.81.092509 (literal)
Alternative label
  • Perucchi, A.; Nicoletti, D.; Ortolani, M.; Marini, C.; Sopracase, R.; Lupi, S.; Schade, U.; Putti, M.; Pallecchi, I.; Tarantini, C.; Ferretti, M.; Ferdeghini, C.; Monni, M.; Bernardini, F.; Massidda, S.; Dore, P. (2010)
    Multiband conductivity and a multigap superconducting phase in V3Si films from optical measurements at terahertz frequencies
    in Physical review. B, Condensed matter and materials physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Perucchi, A.; Nicoletti, D.; Ortolani, M.; Marini, C.; Sopracase, R.; Lupi, S.; Schade, U.; Putti, M.; Pallecchi, I.; Tarantini, C.; Ferretti, M.; Ferdeghini, C.; Monni, M.; Bernardini, F.; Massidda, S.; Dore, P. (literal)
Pagina inizio
  • 92509 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 81 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1Sincrotrone Trieste, Area Science Park, I-34012 Trieste, Italy 2Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Rome, Italy 3CNR-Istituto di Fotonica e Nanotecnologie, Via Cineto Romano 42, I-00156 Rome, Italy 4CNR-IOM and Laboratorio TASC and Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro, I-00185 Rome, Italy 5Berliner Elektronenspeicherring-Gesellshaft für Synchrotronstrahlung m.b.H., Albert-Einstein Strasse 15, D-12489 Berlin, Germany 6CNR-SPIN and Università di Genova, Via Dodecaneso 33, I-16146 Genoa, Italy 7CNR-IOM-SLACS and Dipartimento di Fisica, Università di Cagliari, I-09124 Monserrato (Cagliari), Italy 8CNR-SPIN and Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro 2, I-00185 Rome, Italy (literal)
Titolo
  • Multiband conductivity and a multigap superconducting phase in V3Si films from optical measurements at terahertz frequencies (literal)
Abstract
  • The possibility of multiband conductivity and multigap superconductivity is explored in oriented V3Si thin films by means of reflectance and transmittance measurements at terahertz frequencies. The temperature de- pendence of the transmittance spectra in the normal state gives evidence of two bands contributing to the film conductivity. This outcome is consistent with electronic structure calculations performed within density func- tional theory. On this basis, we performed a detailed data analysis and found that all optical data can be consistently accounted for within a two-band framework, with the presence of two optical gaps in the super- conducting state corresponding to 2?/kTc values close to 1.8 and 3.8. (literal)
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