Influence of the proximity effect on the conductance characteristics of superconducting point-contact junctions: Basic assumptions

A. Di Chiara; F. Fontana; G. Peluso; F. Tafuri

doi:10.1103/PhysRevB.48.6695

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Influence of the proximity effect on the conductance characteristics of superconducting point-contact junctions: Basic assumptions

A. Di Chiara, F. Fontana, G. Peluso, F. Tafuri

DOI 10.1103/PhysRevB.48.6695 · Physical Review B

T1

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Abstract

In this paper an analysis of point-contact junctions (PCJ) with nonhomogeneous base electrodes is undertaken. Assuming that the nonhomogeneity can be modeled as a weakly coupled normal-metal–superconductor bilayer, a simple expression for the current and the conductance for the PCJ is obtained. The model uses the McMillan approach to the proximity effect to evaluate the behavior of such a base electrode. Systematic outcomes of the model and comparison with experimental results on conventional superconductors are presented.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Ag-Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown