  Using inhomogeneous Bogoliubov-de Gennes formalism we study superconducting
properties of bundles of single wall carbon nanotubes, consisting of a mixture
of metallic and semiconducting nanotubes, having different critical transition
temperatures. We investigate how the averaged superconducting order parameter
and the critical transition temperature depend on the fraction of
semiconducting carbon nanotubes in the bundle.

Superconductivity