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Critical-current anisotropy in superconducting Nb3Sn coatings produced by electrocodeposition of Nb and Sn

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Abstract

We report the critical current of superconducting Nb3Sn coatings produced by electrocodeposition from molten salts and its anisotropy in transverse magnetic fields. The anisotropy is quantified by the ratio of the critical currents measured in magnetic fields parallel and normal to the coating surface, k. The effect of doping with tantalum and nitrogen on the microstructure, critical current, and anisotropy factor k of Nb3Sn coatings is examined. The k of the undoped and tantalum-doped coatings ranges from 0.4 to 1.0, and that of the nitrogen-doped coatings, from 0.4 to 1.4. The critical current anisotropy is interpreted in terms of the microstructure of the coatings.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, ul. Fersmana 26a, Apatity, Murmansk oblast, 184209, Russia

    V. N. Kolosov

  2. Sintez Research and Production Center, Ovchinnikovskaya nab. 6/1, Moscow, 115035, Russia

    A. A. Shevyrev

Authors
  1. V. N. Kolosov
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  2. A. A. Shevyrev
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Correspondence to V. N. Kolosov.

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Original Russian Text © V.N. Kolosov, A.A. Shevyrev, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 2, pp. 183–189.

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Kolosov, V.N., Shevyrev, A.A. Critical-current anisotropy in superconducting Nb3Sn coatings produced by electrocodeposition of Nb and Sn. Inorg Mater 46, 144–150 (2010). https://doi.org/10.1134/S002016851002010X

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  • DOI: https://doi.org/10.1134/S002016851002010X

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