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.
Influence of the proximity effect on superconducting point contact junctions conductance characteristics: basic assumptions
TAFURI, Francesco
1993
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.File in questo prodotto:
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