Metallic conductivity in bundles of intercalated multiwall carbon nanotubes

We propose a model for the low temperature conductivity of intercalated mul tiwall carbon nanotube bundles in terms of three-dimensional weak localisat ion, with a weakly temperature dependent inelastic scattering process, and interaction effect. At a crossover temperature T* weak localisation conditi ons collapse and the intrinsic conduction process is observed at T>T*.