Radial oscillations of local density of states in carbon nanotubes
Item Type:Journal Article
Citation:Ferreira, M. S.; Dargam, T. G.; Muniz, R. B.; Latge, A., Radial oscillations of local density of states in carbon nanotubes, Phys. Rev. B., 63, 2001, 245111-
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By performing an analytical study of the electronic structure of metallic carbon nanotubes, we show that the local density of states exhibits well-defined oscillations as a function of the nanotube radius. The periods of such oscillations are obtained from size quantization effects derived from folding up finite graphene sheets into tubular structures. A clear analogy with the de Haas?van Alphen effect in metals is established to explain the origin and features of such oscillations. Results of energy change calculations for impurity-doped carbon nanotubes also show the same type of oscillations.
Author: FERREIRA, MAURO
Type of material:Journal Article
Series/Report no:Phys. Rev. B.
Availability:Full text available