Superconductivity in an Inhomogeneous Bundle of Metallic and Semiconducting Nanotubes

Authors

Ilya Grigorenko, CUNY New York City College of TechnologyFollow
Anvar Zakhidov, CUNY New York City College of Technology

Document Type

Article

Publication Date

2013

Abstract

Using Bogoliubov-de Gennes formalism for inhomogeneous systems, we have studied superconducting properties of a bundle of packed carbon nanotubes, making a triangular lattice in the bundle's transverse cross-section. The bundle consists of a mixture of metallic and doped semiconducting nanotubes, which have different critical transition temperatures. We investigate how a spatially averaged superconducting order parameter and the critical transition temperature depend on the fraction of the doped semiconducting carbon nanotubes in the bundle. Our simulations suggest that the superconductivity in the bundle will be suppressed when the fraction of the doped semiconducting carbon nanotubes will be less than 0.5, which is the percolation threshold for a two-dimensional triangular lattice.

Comments

This article was originally published in the Journal of Nanotechnology, available at http://dx.doi.org/10.1155/2013/367270.

This is an open access article distributed under the Creative Commons Attribution 3.0 Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.