Critical current in Nb-Cu-Nb junctions with non-ideal interfaces

Y. Blum; A. Tsukernik; M. Karpovski; A. Palevski

doi:10.1103/PhysRevB.70.214501

Critical current in Nb-Cu-Nb junctions with non-ideal interfaces

Superconductivity 2009-11-10 v1

Authors: Y. Blum , A. Tsukernik , M. Karpovski , A. Palevski

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Abstract

We report on experimental studies of superconductor (Nb) - normal metal (Cu) - superconductor (Nb) junctions with dirty interfaces between the different materials. By using a set of simultaneously prepared samples, we investigated the thickness dependence as well as the temperature dependence of the critical currents in the junctions. Good agreement between the decay of the measured critical currents and theoretical calculations was obtained without any fitting parameters.

Keywords

superconductivity

Cite

@article{arxiv.cond-mat/0410272,
  title  = {Critical current in Nb-Cu-Nb junctions with non-ideal interfaces},
  author = {Y. Blum and A. Tsukernik and M. Karpovski and A. Palevski},
  journal= {arXiv preprint arXiv:cond-mat/0410272},
  year   = {2009}
}

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