Shapira, S. and Linfield, E. H. and Lambert, C. J. and Seviour, R. and Volkov, A. F. and Zaitsev, A. V. (2000) Anomalous behavior of superconducting-normal mesoscopic structures near T-c. Physical Review Letters, 84 (1). pp. 159-162.
Full text not available from this repository.Abstract
We observe a maximum in the conductance of Al/n-GaAs junctions at temperatures 20 mK lower than the superconducting transition temperature (T-c). This is the first observation of a peak in the conductance near the superconducting transition in superconducting-normal (S/N) junctions. To accommodate this effect we calculate the full temperature dependence of the conductance of these structures, invoking quasiclassical Green's functions in the diffusive limit. In addition to the well-known low-temperature peak at temperatures on the order of the Thouless energy, we find a maximum near T-c. This peak has the same origin as the subgap conductance observed in S/N junctions at low temperatures.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Physical Review Letters |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 579 |
| Deposited By: | Prof Colin J. Lambert |
| Deposited On: | 04 Jul 2007 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 20 Feb 2013 12:27 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/579 |
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