Conductance suppression in normal metal-superconductor mesoscopic strucutres

Details Conductance suppression in normal metal-superconductor mesoscopic strucutres Conductance suppression in normal metal-superconductor mesoscopic strucutres

1998-03-10

arxiv.org/abs/cond-mat/9803114v1

Physics

Condensed Matter

Superconductivity

8 pages, 5 figures

Scientific paper

Using a scattering matrix approach and quasiclassical Green's function technique, we calculate the conductance of the S/N system (see Fig.1). We establish that the difference between the superconducting and normal state conductance $(\delta G = G_s - G_n)$ is negative for large S/N interface resistances $(R_{S/N})$ and changes sign with decreasing $R_{S/N}$. The comparision of the result obtained with experimental data is carried out.

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