Transition from coherent mesoscopic single-particle transport to Josephson proximity current

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Creating variable size nanojunctions between a thin metallic film and a superconducting tip we study how multiple phase-coherent scatterings enhance the superconducting correlations at the normal side. By increasing the coherent volume of carriers the transmission through the interface is smoothly enhanced as reflected in the zero-bias conductance. As the phase-coherent volume reaches the opposite surface of the thin film a resonator is formed, the conductance of the interface is dramatically enhanced, and finally a proximity induced Josephson supercurrent is established.

Original languageEnglish
Article number212501
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
Publication statusPublished - Dec 1 2010


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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