Superconductivity in an inhomogeneous bundle of metallic and semiconducting nanotubes

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Superconductivity in an inhomogeneous bundle of metallic and semiconducting nanotubes

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Title: Superconductivity in an inhomogeneous bundle of metallic and semiconducting nanotubes
Author(s):
Grigorenko, I.;
Zakhidov, Anvar A. (UT Dallas)
Sponsors: Alan G. MacDiarmid NanoTech Institute
Format: Text
Item Type: Article
Keywords: Carbon nanotubes
Semiconductors
Superconductors
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.
ISSN: 1687-9503
Persistent Link: http://hdl.handle.net/10735.1/3697
http://dx.doi.org/10.1155/2013/367270
Terms of Use: ©2013 The Authors. "This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited."

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