Defective transport properties of three-terminal carbon nanotube junctions

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dc.creatordel Valle, Miriam
dc.creatorTejedor, Carlos
dc.creatorCuniberti, Gianaurelio
dc.date2004-11-05
dc.date.accessioned2026-07-07T03:01:54Z
dc.date.available2026-07-07T03:01:54Z
dc.descriptionWe investigate the transport properties of three terminal carbon based nanojunctions within the scattering matrix approach. The stability of such junctions is subordinated to the presence of nonhexagonal arrangements in the molecular network. Such "defective" arrangements do influence the resulting quantum transport observables, as a consequence of the possibility of acting as pinning centers of the correspondent wavefunction. By investigating a fairly wide class of junctions we have found regular mutual dependencies between such localized states at the carbon network and a strikingly behavior of the conductance. In particular, we have shown that Fano resonances emerge as a natural result of the interference between defective states and the extended continuum background. As a consequence, the currents through the junctions hitting these resonant states might experience variations on a relevant scale with current modulations of up to 75%.
dc.description8 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0411142
dc.identifierhttp://arxiv.org/abs/cond-mat/0411142
dc.identifierPhysical Review B 71, 125306 (2005)
dc.identifierdoi:10.1103/PhysRevB.71.125306
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25213
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleDefective transport properties of three-terminal carbon nanotube junctions
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