Abstract
The subgap conductivity of a normal-superconductor (NS) tunnel junction is thought to be due to tunneling of two electrons. There is a strong interference between these two electrons, originating from the spatial phase coherence in the normal metal at a mesoscopic length scale and the intrinsic coherence of the superconductor. We evaluated the interference effect on the transport through an NS tunnel juction. We propose the layouts to observe drastic Aharonov-Bohm and Josephson effects.
- Received 23 February 1993
DOI:https://doi.org/10.1103/PhysRevLett.71.1625
©1993 American Physical Society
