Self-consistent transport properties of superconducting nanostructures

Martin, A M and Lambert, C J (1996) Self-consistent transport properties of superconducting nanostructures. Czechoslovak Journal of Physics, 46 (s4). pp. 2407-2408. ISSN 0011-4626

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Abstract

By solving the Bogoliubov-de Gennes equation self-consistently, we compute transport properties of various normal-superconducting mesoscopic structures. Three structures are considered; a single superconducting island, a superconducting island with a delta-function scatterer at one interface and a superconducting island with a delta-function scatterer at the centre of the island. The calculated self-consistent I-V characteristics show significant structure, arising from the competition between scattering processes at the boundaries of the island and modification of the order parameter by quasi-particles and superflow. When the order parameter is significantly modified by the transport current, it is noted that the magnitude of the differential conductance of a single-channel conductor can exceed 2e(2)/h.

Item Type:
Journal Article
Journal or Publication Title:
Czechoslovak Journal of Physics
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
58156
Deposited By:
Deposited On:
24 Oct 2012 14:52
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:07