Transport Properties in Chemically Doped Metallic Nanotubes

Abstract

We have studied the transport properties in periodic chemically nitrogen doped
metallic nanotubes. We have found that the ballistic properties of carbon nanotubes
remained for some doping configurations. It was also found that the resonant effect
associated with specific symmetry of the wave function was close to the Fermilevel.
We have shown that both axial and screw periodicities gave rise to such a behavior
and that specific but realistic disorder preserved this ballistic transport in doped
metallic carbon nanotube. The properties which were four found during
investigation are related to long range correlation effects predicted for the electronic
properties and the quantum transport of nitrogen doped graphene when chemical
dopic effects only one of the two sublattices of graphene. For the purpose of
research paper we have used Green’s formalism in the framework of the tight
binding approach. We have found that conductance response was unchanged
because one of the two conductance channels remained open for symmetry reasons.
It was also found that the energy of the quasibound states depend on the specific
local modification but not based on the symmetry of the quasibound states. The
bound properties remained true for both armchair and chiral nanotubes. The
obtained results were in good agreement with previously obtained results