Lambert, Colin and Robinson, S. J. (1993) Macroscopic fluctuations in the boundary resistance of metal-superconductor interfaces. Physical Review B, 48 (14). pp. 10391-10394. ISSN 0163-1829Full text not available from this repository.
We examine the possibility of macroscopic fluctuations in the electrical resistance R of a disordered mesoscopic superconductor. A Perturbative argument shows that in the presence of phase fluctuations, quantum interference can cause the Andreev scattering amplitude to vanish, leading to a 1/R2 tail in the probability distribution for R. Consequently no moments exist and the boundary resistance exhibits large fluctuations. This prediction is confirmed by numerical simulations on superconducting loops, connected to external reservoirs by point contacts.
|Journal or Publication Title:||Physical Review B|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||24 Oct 2012 13:51|
|Last Modified:||07 Jan 2015 17:52|
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