Conductance Anomalies for Normal-Metal-Insulator-Superconductor Contacts
arXiv:cond-mat/9510067 · doi:10.1103/PhysRevB.52.15504
Abstract
This paper considers the conductance through a dirty junction between a normal conductor and a superconductor with an insulating barrier. It is shown that for large barrier resistances there is a relative enhancement of the conductance near zero voltage, whereas for low barrier resistance this anomaly appears at finite voltage.
7 pages, latex, 7 figures, uufiles