Shot noise in carbon nanotube based Fabry-Perot interferometers - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2007

Shot noise in carbon nanotube based Fabry-Perot interferometers

Résumé

We report on shot noise measurements in carbon nanotube based Fabry-Perot electronic interferometers. As a consequence of quantum interferences, the noise power spectral density oscillates as a function of the voltage applied to the gate electrode. The quantum shot noise theory accounts for the data quantitatively. It allows to confirm the existence of two nearly degenerate orbitals. At resonance, the transmission of the nanotube approaches unity, and the nanotube becomes noiseless, as observed in quantum point contacts. In this weak backscattering regime, the dependence of the noise on the backscattering current is found weaker than expected, pointing either to electron-electron interactions or to weak decoherence.
Fichier principal
Vignette du fichier
Kontos.pdf (279.36 Ko) Télécharger le fichier
EPAPS.ps (125.74 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Format : Autre
Loading...

Dates et versions

hal-00134879 , version 1 (05-03-2007)

Identifiants

Citer

L.G. Herrmann, T. Delattre, P. Morfin, J.-M. Berroir, B. Plaçais, et al.. Shot noise in carbon nanotube based Fabry-Perot interferometers. Physical Review Letters, 2007, 99, pp.156804. ⟨10.1103/PhysRevLett.99.156804⟩. ⟨hal-00134879⟩
102 Consultations
124 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More