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Proximity-induced transport in superconductor - normal metal nanostructures

Seviour, R and Lambert, C J and Volkov, A F (1998) Proximity-induced transport in superconductor - normal metal nanostructures. Journal of Physics: Condensed Matter, 10 (35). L615-L621. ISSN 0953-8984

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Abstract

We calculate the conductance for a diffusive normal wire (N) in contact with a superconductor (S). Using a numerical scattering matrix approach and a quasiclassical Green function technique, we compare the conductance G of the system connected to two normal reservoirs when the superconductor is in its normal state with the conductance G(s) in the superconducting state and predict that the difference delta G = G(s) - G may be negative or positive depending upon the S/N interface resistance and the interface resistance at the ends of the N wire. As the temperature T is varied, delta G(T) may change sign and exhibit two maxima.

Item Type: Article
Journal or Publication Title: Journal of Physics: Condensed Matter
Uncontrolled Keywords: superconductivity
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 58162
Deposited By: ep_importer_pure
Deposited On: 24 Oct 2012 15:33
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 08:40
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/58162

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