Quantum Hall effect in carbon nanotubes

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dc.creatorPerfetto, E.
dc.creatorGonzalez, J.
dc.creatorGuinea, F.
dc.creatorBellucci, S.
dc.creatorOnorato, P.
dc.date2006-04-03
dc.date2006-04-04
dc.date.accessioned2026-07-07T07:05:13Z
dc.date.available2026-07-07T07:05:13Z
dc.descriptionWe investigate the effects of a transverse magnetic field on the transport properties of carbon nanotubes, making use of a long-wavelength description in terms of Dirac fermion fields. For values of the magnetic length smaller than the nanotube radius, we observe that the electronic states organize into incipient Landau subbands, with a highly degenerate level at zero energy. We show that only the states in dispersive branches, localized at the flanks of the nanotube, are able to transport current in the longitudinal direction. This is at the origin of the quantization of the Hall conductivity, that turns out to be given by even multiples of 2 e^2 /h. We also analyze the effects of the electron-electron interaction, showing that the magnetic field induces a suppression of the electronic correlations, reflected in particular in the enhancement of the tunneling density of states near the Fermi level.
dc.description4 pages, REVTeX, submitted to PRL, corrected typos
dc.identifierhttps://arxiv.org/abs/cond-mat/0604046
dc.identifierhttp://arxiv.org/abs/cond-mat/0604046
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109596
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleQuantum Hall effect in carbon nanotubes
dc.typetext

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