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Critical data of type II superconductors under hydrostatic pressure

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Thin films of Nb3Sn, Nb3Ga, and NbN deposited on sapphire substrates by different preparation techniques and diffusion wires were measured under hydrostatic pressures up to 15 kbar. The results on critical current and upper critical induction under pressure can be described by scaling laws similar to those already known for temperature as parameter. The anisotropies of the critical currents and fields depend on the microstructure of the samples. The pinning mechanisms are not changed under hydrostatic pressure, so that the pinning forces in these superconductors can be compared to existing pinning theories.

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Supported by the Deutsche Forschungsgemeinschaft.

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Sattler, W.W., Saur, E.J. Critical data of type II superconductors under hydrostatic pressure. J Low Temp Phys 34, 551–567 (1979). https://doi.org/10.1007/BF00114940

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  • DOI: https://doi.org/10.1007/BF00114940

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