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Conductance suppression in normal-metal-superconductor mesoscopic structures

Research output: Contribution to journalJournal article


Journal publication date1998
JournalPhysical review b
Journal number18
Number of pages6
Original languageEnglish


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].