Competition between Zero Bias Anomaly and Proximity Effect in Disordered Systems
- 8 February 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 82 (6) , 1269-1272
- https://doi.org/10.1103/physrevlett.82.1269
Abstract
We investigate the suppression of the proximity effect in mesoscopic normal-metal–superconductor systems induced by Coulomb interaction. We identify and elucidate the mechanism by which disorder leads to an amplification of this effect. In particular, for strong enough disorder, the proximity effect is shown to vanish. An expression for the tunneling density of states is obtained and experimental applications are discussed.Keywords
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