Backscattering in carbon nanotubes : role of quantum interference effects
نویسندگان
چکیده
The backscattering contribution to the conductivity, irrelevant for metallic single-walled carbon nanotubes, is proved to become much significant for doped semiconducting systems, in agreement with experiments. In the case of multi-walled nanotubes, the intershell coupling is further shown to enhance the contribution of backscattering for ”metallic” double-walled, whereas it remains insignificant for ”metallic/semiconducting” double-walled systems.
منابع مشابه
Effects of symmetry crossover in quantum transport in graphene and nanotubes
A brief review is given here on transport properties of carbon nanotubes mainly from a theoretical point of view. The topics include an effective-mass description of electronic states and the absence of backscattering and the presence of a perfectly conducting channel except for scatterers with a potential range smaller than the lattice constant. The dynamical conductivity in the presence of a ...
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