Conductance suppression in normal-metal–superconductor mesoscopic structures
R. Seviour, C. J. Lambert, A. F. Volkov
DOI 10.1103/PhysRevB.58.12338 · Physical Review B
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Abstract
Using a scattering matrix approach and quasiclassical Green’s function technique, we calculate the conductance of the superconductor–normal-metal (S/N) system (see Fig. 11). We establish that the difference between the superconducting and normal state conductance (δG=Gs−Gn) is negative for large S/N interface resistances (RS/N) and changes sign with decreasing RS/N.
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