Diameter-dependent conductance oscillations in carbon nanotubes upon torsion

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dc.creatorNagapriya, K. S.
dc.creatorBerber, Savas
dc.creatorCohen-Karni, Tzahi
dc.creatorSegev, Lior
dc.creatorSrur-Lavi, Onit
dc.creatorTomanek, David
dc.creatorJoselevich, Ernesto
dc.date2008-03-31
dc.date.accessioned2026-07-07T09:29:25Z
dc.date.available2026-07-07T09:29:25Z
dc.descriptionWe combine electromechanical measurements with {\em ab initio} density functional calculations to settle the controversy about the origin of torsion-induced conductance oscillations in multi-wall carbon nanotubes. According to our observations, the oscillation period is inversely proportional to the squared diameter of the nanotube, as expected for a single-wall nanotube of the same diameter. This is supported by our theoretical finding that differential torsion effectively decouples the walls of a multi-wall nanotube near the Fermi level and moves the Fermi momentum across quantization lines. We exclude the alternative explanation linked to registry changes between the walls, since it would cause a different diameter dependence of the oscillation period.
dc.description4 pages, 5 figures, submitted to PRL
dc.identifierhttps://arxiv.org/abs/0803.4426
dc.identifierhttp://arxiv.org/abs/0803.4426
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157780
dc.subjectMaterials Science
dc.titleDiameter-dependent conductance oscillations in carbon nanotubes upon torsion
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