Effect of quasibound states on coherent electron transport in twisted nanowires (Articolo in rivista)

Type
Label
  • Effect of quasibound states on coherent electron transport in twisted nanowires (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.83.245439 (literal)
Alternative label
  • Giampaolo Cuoghi and Andrea Bertoni and Andrea Sacchetti (2011)
    Effect of quasibound states on coherent electron transport in twisted nanowires
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Giampaolo Cuoghi and Andrea Bertoni and Andrea Sacchetti (literal)
Pagina inizio
  • 245439 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevB.83.245439 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 83 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • DOI: 10.1103/PhysRevB.83.245439 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica, Università degli Studi di Modena e Reggio Emilia, Modena, Italy Dipartimento di Matematica Pura ed Applicata, Università degli Studi di Modena e Reggio Emilia, Modena, Italy NANO - Istituto Nanoscienze (literal)
Titolo
  • Effect of quasibound states on coherent electron transport in twisted nanowires (literal)
Abstract
  • Quantum transmission spectra of a twisted electron waveguide expose the coupling between traveling and quasibound states. Through a direct numerical solution of the open-boundary Schrödinger equation, we single out the effects of the twist and show how the presence of a localized state leads to a Breit-Wigner or a Fano resonance in the transmission. We also find that the energy of quasibound states is increased by the twist, despite the constant section area along the waveguide. While the mixing of different transmission channels is expected to reduce the conductance, the shift of localized levels into the traveling-states energy range can reduce their detrimental effects on coherent transport. (literal)
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