The fabrication and characterization of NbCN/AlN heterostructures

  title={The fabrication and characterization of NbCN/AlN heterostructures},
  author={Z. Barber and D. Tricker and M. Blamire},
  journal={IEEE Transactions on Applied Superconductivity},
Very high quality niobium nitride based superconductor-insulator-superconductor (SIS) junctions have been prepared using aluminium nitride barrier layers deposited by dc reactive magnetron sputtering. These barriers have been shown to grow epitaxially on high quality epitaxial niobium carbonitride (NbCN) base electrodes. High total gap voltages, equal to the maximum that can be expected theoretically, illustrate that there are no degraded layers at the superconductor/insulator interfaces. We… Expand

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