Long- to short-junction crossover and field-reentrant critical current in Al/Ag-nanowires/Al Josephson junctions

  title={Long- to short-junction crossover and field-reentrant critical current in Al/Ag-nanowires/Al Josephson junctions},
  author={Anil Murani and Shamashis Sengupta and Alebker Yu Kasumov and Richard Deblock and Caroline Celle and Jean-Pierre Simonato and H. Bouchiat and Sophie Gu'eron},
  journal={arXiv: Mesoscale and Nanoscale Physics},
We have probed the superconducting proximity effect through long high-quality monocrystalline Ag nanowires, by realizing Josephson junctions of different lengths, with different superconducting materials. Thanks to the high number of junctions probed, both the contact resistance and electron diffusion constant could be determined, enabling a comparison of the measured critical current to theoretical expectation, over the entire regime from short to long diffusive junction. Although the length… 

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