Electron transport in carbon nanotube-metal systems: contact effects

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dc.creatorRanjan, N.
dc.creatorGutierrez-Laliga, R.
dc.creatorKrompiewski, S.
dc.creatorCuniberti, G.
dc.date2005-07-25
dc.date.accessioned2026-07-07T03:06:06Z
dc.date.available2026-07-07T03:06:06Z
dc.descriptionCarbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing the Fermi level. For finite size CNTs experiments have shown that other values are also possible, indicating a very strong influence of the contacts. We study electron transport in single- and double-wall CNTs contacted to metallic electrodes within the Landauer formalism combined with Green function techniques. We show that the symmetry of the contact region may lead to blocking of a transport channel. In the case of double-wall CNTs with both inner and outer shells being metallic, non-diagonal self energy contributions from the electrodes may induce channel mixing, precluding a simple addition of the individual shell conductances.
dc.identifierhttps://arxiv.org/abs/cond-mat/0507566
dc.identifierhttp://arxiv.org/abs/cond-mat/0507566
dc.identifierMolecular Physics Reports 40, 125 (2004)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26687
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleElectron transport in carbon nanotube-metal systems: contact effects
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