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Crossover from marginal Fermi liquid to Luttinger liquid behavior in carbon nanotubes

AutorBellucci, S.; González Carmona, José
Fecha de publicación6-nov-2001
EditorAmerican Physical Society
CitaciónPhysical Review B 64: 2011061- 2011064 (2001)
ResumenWe study graphene-based electron systems with long-range Coulomb interaction by performing an analytic continuation in the number of dimensions. We characterize in this way the crossover between the marginal Fermi-liquid behavior of a graphite layer and the Luttinger-liquid behavior at D = 1. The former persists for any dimension above D = 1. However, the proximity to the D = 1 fixed-point strongly influences the phenomenology of quasi-one-dimensional systems, giving rise to an effective power-law behavior of observables like the density of states. This applies to nanotubes of a large radius, for which we predict a lower bound of the corresponding exponent that turns out to be very close to the value measured in multiwalled nanotubes. ©2001 The American Physical Society
Descripción4 págs.; 4 figs.; PACS number~s!: 71.10.Pm, 71.20.Tx, 72.80.Rj
Versión del editorhttps://doi.org/10.1103/PhysRevB.64.201106
URIhttp://hdl.handle.net/10261/140144
DOI10.1103/PhysRevB.64.201106
Identificadoresdoi: 10.1103/PhysRevB.64.201106
issn: 0163-1829
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