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arXiv · cond-mat/9707071

Evidence for Supercurrent Quantization in Interfacial Josephson Junctions

M. J. Black·B. W. Alphenaar·H. Ahmed
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Abstract

We observe a series of discontinuities in the above gap current/voltage characteristics of highly transmissive Nb/Si superconductor/semiconductor interfaces. The bias at which each switch occurs decreases in quantized steps as a function of temperature and magnetic field. The observed step-size is the same for both dependencies. We propose that the steps correspond to supercurrent quantization through granular Josephson junctions formed near the interface.

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M. J. Black, B. W. Alphenaar, H. Ahmed. 1997-07-29. Evidence for Supercurrent Quantization in Interfacial Josephson Junctions. https://doi.org/10.1103/physrevlett.80.596

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