Martin, A M and Lambert, C J (1996) Non-linear transport properties of superconducting nanostructures. Journal of Physics Condensed Matter, 8 (49). L731-L738. ISSN 0953-8984
Full text not available from this repository.Abstract
By solving the Bogoliubov-de Gennes equation seIf-consistently, we compute transport properties of a one dimensional superconducting island with a delta-function normal scatterer at the centre. The calculated 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. At a certain critical current, the order parameter exhibits a quasi-first-order transition to the normal state, smeared by the finite system size. At this point, the differential conductance is negative and can have a magnitude greater than 2e(2)/h, despite the fact that there is only a single scattering channel.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Journal of Physics Condensed Matter |
| Subjects: | UNSPECIFIED |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 58163 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 24 Oct 2012 15:28 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 24 Oct 2012 15:28 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/58163 |
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