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Intrinsic Josephson effects in 60-K phase YBCO thin film mesas

  • HTSC—Granular Superconductors
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Czechoslovak Journal of Physics Aims and scope

Abstract

We fabricatedc-axis oriented meas on YBa2Cu3O7−δ thin films. Columnar structures with an area of 20×20 μm2 and a depth of 0.1 μm were formed on oxygen deficient films with a critical temperature (T c ) of 64 K or less. The devices showed hysteretic I–V curves without any branches. The dependence of the critical current density on the temperature nearT c is explained by the Ambegaokar-Baratoff relation.

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Tonouchi, M., Itoh, A., Yasuda, T. et al. Intrinsic Josephson effects in 60-K phase YBCO thin film mesas. Czech J Phys 46 (Suppl 3), 1275–1276 (1996). https://doi.org/10.1007/BF02562752

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  • DOI: https://doi.org/10.1007/BF02562752

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