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Comparative Studies of the Superconducting Properties of Bi2Sr2CaCu2O8+δ and Bi1.7Pb0.3Sr2CaCu2O8+δ/Ag Random Composites

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Abstract

We report the results of the study of the resistive transition and the screening effect on similar random composites made of a silver matrix containing sintered superconducting grains of bismuth phase with two different stoichiometries. We show that most of the observed behaviors are compatible with a phenomenological approach in which the intergrain junctions behave as weak links whose the state depends strongly on temperature and field. We find that these links a much weaker in one of the series of samples.

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Authors and Affiliations

  1. Centre de Recherche Paul Pascal, Av Dr Schweitzer, F-33600, Pessac, France

    Francois Carmona, Serge Flandrois, Laurent Antunes & Jean-Marc Heintz

  2. Institut de Chimie de la Matière Condensée, Av Dr Schweitzer, F-33608, Pessac, France

    Laurent Antunes & Jean-Marc Heintz

Authors
  1. Francois Carmona
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  2. Serge Flandrois
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  3. Laurent Antunes
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  4. Jean-Marc Heintz
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Carmona, F., Flandrois, S., Antunes, L. et al. Comparative Studies of the Superconducting Properties of Bi2Sr2CaCu2O8+δ and Bi1.7Pb0.3Sr2CaCu2O8+δ/Ag Random Composites. Journal of Low Temperature Physics 117, 783–787 (1999). https://doi.org/10.1023/A:1022513815873

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  • DOI: https://doi.org/10.1023/A:1022513815873

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