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Conductance suppression in normal-metal-superconductor mesoscopic structures

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>1998
<mark>Journal</mark>Physical review b
Issue number18
Volume58
Number of pages6
Pages (from-to)12338-12343
<mark>State</mark>Published
<mark>Original language</mark>English

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. 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. [S0163-1829(98)03742-4].