Josephson effects in a superconductor-normal metal mesoscopic structure with a dangling superconducting arm

Details Josephson effects in a superconductor-normal metal mesoscopic structure with a dangling superconducting arm Josephson effects in a superconductor-normal metal mesoscopic structure with a dangling superconducting arm

2000-10-10

arxiv.org/abs/cond-mat/0010144v1

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures, to be published in PRB Rapid Communication

Scientific paper

10.1103/PhysRevB.62.R14649

We studied a mesoscopic cross-like normal metal structure connected to two superconducting (S) and two normal (N) reservoirs. We observed the Josephson effect under unusual conditions when there is no current through one of the two S/N interfaces. The potential difference between the S reservoirs was zero unless the voltage applied between S and N reservoirs exceeded a critical value although the electric potential in the N wire connecting the superconductors varied in a nonmonotonic way. The observed effects are discussed theoretically.

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