Allsopp, N. K. and Hui, V. C. and Lambert, Colin and Robinson, S. J. (1994) Theory of the sign of multi-probe conductances for normal and superconducting materials. Journal of Physics Condensed Matter, 6 (48). pp. 10475-10486. ISSN 0953-8984
Full text not available from this repository.Abstract
We examine equivalent forms of the current-voltage relationship applicable to mesoscopic superconductors and use one of these to derive general conditions for the sign of the conductance in a four-probe measurement. For disordered systems, with well separated voltage probes, where the normal-state conductance is positive, we predict that the sign of the longitudinal four-probe conductance of superconducting wires can be reversed by varying an applied magnetic field, and that at certain critical values of the field, the conductance passes through a singularity.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Journal of Physics Condensed Matter |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 58142 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 24 Oct 2012 15:23 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 24 Oct 2012 15:23 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/58142 |
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