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Effect of Ba Substitution on the Superconducting Properties and the Irreversibility Line of the Compounds TIPb 1223: Tl0.5Pb0.5(Sr 2−xBax)Ca2Cu3O9−δ

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Abstract

The superconducting properties and the irreversibility line of the Tl0.5Pb0.5(Sr2−xBax)Ca2Cu3O9−δ were studied by ac susceptibility on both ceramic and powdered samples. The samples were prepared by solid state reaction in flowing oxygen at 880°C or in sealed quartz tube at 960°C. The irreversibility lines were measured up to 4 Tesla and were determined by the maximum of the X″ peak, using the same ac field to allow comparison between them. The presence of the 1212 phase as a minor superconducting phase was clearly evidenced in all cases. The case of samples of TlPbl223 with Tl/Pb ratio different from unity was also examined.

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Authors and Affiliations

  1. Departement de Recherche Fondamentale sur la Matière Condensée, CEA Grenoble, 38054, Grenoble Cedex 9, France

    M. Couach

  2. Laboratoire de Physico Chimie Minérale II, Université Claude Bernard, F-69622, Villeurbanne Cedex, France

    K. Lebbou, R. Abraham, S. Trosset & M.Th. Cohen-Adad

  3. LAIMAN, Université de Savoie, F-74942, Annecy-le-Vieux Cedex, France

    J.L. Jorda

Authors
  1. M. Couach
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  2. K. Lebbou
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  3. R. Abraham
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  4. J.L. Jorda
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  5. S. Trosset
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  6. M.Th. Cohen-Adad
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Couach, M., Lebbou, K., Abraham, R. et al. Effect of Ba Substitution on the Superconducting Properties and the Irreversibility Line of the Compounds TIPb 1223: Tl0.5Pb0.5(Sr 2−xBax)Ca2Cu3O9−δ . Journal of Superconductivity 11, 83–84 (1998). https://doi.org/10.1023/A:1022698316398

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  • DOI: https://doi.org/10.1023/A:1022698316398

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