Abstract
Measurements on the temperature dependence of the magnetic field penetration in Nb-NbxOy-Pb and V-VxOy-Pb Josephson junctions have been performed. Results on the zero-temperature penetration depth in niobium films are far above the bulk values although consistent with other measurements on junctions reported in the literature. For vanadium junctions anomalously large penetration depth values are obtained at low temperatures. Nevertheless, the temperature dependence is in reasonable agreement with the local dirty limit model.
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This work was partially supported by the Consiglio Nazionale delle Ricerche under the Progetto Finalizzato Superconduttività.
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Cucolo, A.M., Pace, S., Vaglio, R. et al. Magnetic field penetration in niobium- and vanadium-based Josephson junctions. J Low Temp Phys 50, 301–310 (1983). https://doi.org/10.1007/BF00681607
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DOI: https://doi.org/10.1007/BF00681607