Signatures of Wigner correlations in the conductance of a one-dimensional quantum dot coupled to an AFM tip (Articolo in rivista)

Type
Label
  • Signatures of Wigner correlations in the conductance of a one-dimensional quantum dot coupled to an AFM tip (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.86.125451 (literal)
Alternative label
  • N. Traverso Ziani, F. Cavaliere, and M. Sassetti (2012)
    Signatures of Wigner correlations in the conductance of a one-dimensional quantum dot coupled to an AFM tip
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • N. Traverso Ziani, F. Cavaliere, and M. Sassetti (literal)
Pagina inizio
  • 125451-1 (literal)
Pagina fine
  • 125451 -12 (literal)
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  • http://link.aps.org/doi/10.1103/PhysRevB.86.125451 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 86 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146, Genova, Italy and CNR-SPIN, Via Dodecaneso 33, 16146, Genova, Italy (literal)
Titolo
  • Signatures of Wigner correlations in the conductance of a one-dimensional quantum dot coupled to an AFM tip (literal)
Abstract
  • The transport properties of an interacting one-dimensional quantum dot capacitively coupled to an atomic force microscope probe are investigated. The dot is described within a Luttinger-liquid framework which captures both Friedel and Wigner oscillations. In the linear regime, we demonstrate that both the conductance peak position and height oscillate as the tip is scanned along the dot. A pronounced beating pattern in the conductance maximum is observed connected to the oscillations of the electron density. Signatures of the effects induced by a Wigner molecule are clearly identified and their stability against the strength of Coulomb interactions is analyzed. While the oscillations of the peak position due to Wigner get enhanced at strong interactions, the peak height modulations are suppressed as interactions grow. Oscillations due to Friedel, on the other hand, are robust against interaction (literal)
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