Theory of superconductivity of carbon nanotubes and graphene

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dc.creatorSasaki, K.
dc.creatorJiang, J.
dc.creatorSaito, R.
dc.creatorOnari, S.
dc.creatorTanaka, Y.
dc.date2006-11-17
dc.date.accessioned2026-07-07T07:51:02Z
dc.date.available2026-07-07T07:51:02Z
dc.descriptionWe present a new mechanism of carbon nanotube superconductivity that originates from edge states which are specific to graphene. Using on-site and boundary deformation potentials which do not cause bulk superconductivity, we obtain an appreciable transition temperature for the edge state. As a consequence, a metallic zigzag carbon nanotube having open boundaries can be regarded as a natural superconductor/normal metal/superconductor junction system, in which superconducting states are developed locally at both ends of the nanotube and a normal metal exists in the middle. In this case, a signal of the edge state superconductivity appears as the Josephson current which is sensitive to the length of a nanotube and the position of the Fermi energy. Such a dependence distinguishs edge state superconductivity from bulk superconductivity.
dc.description5 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0611452
dc.identifierhttp://arxiv.org/abs/cond-mat/0611452
dc.identifierJ. Phys. Soc. Jpn. 76, 033702 (2007)
dc.identifierdoi:10.1143/JPSJ.76.033702
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125373
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleTheory of superconductivity of carbon nanotubes and graphene
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