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Spectrophotometric determination of oxygen content in calcium substituted RBCO (R=Eu, Gd, Er) superconductors

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Central European Journal of Chemistry

Abstract

The oxygen stoichiometry in R1−x Ca x Ba2Cu3O y (R=Eu, Er, Gd; x=0, 0.2, 0.25, 0.3) superconducting bulk samples was determined spectrophotometrically. The dependence of the critical temperature on the y-oxygen coefficient and the x-coefficient of the included calcium was studied.

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Authors and Affiliations

  1. Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784, Sofia, Bulgaria

    Angelina K. Stoyanova-Ivanova & Tsvetanka Krasteva Nedeltcheva

  2. Department of Analytical Chemistry, University of Chemical Technology and Metallurgy, 8 Kl. Ohridski, 1756, Sofia, Bulgaria

    Latinka Krumova Vladimirova

Authors
  1. Angelina K. Stoyanova-Ivanova
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  2. Tsvetanka Krasteva Nedeltcheva
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  3. Latinka Krumova Vladimirova
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Stoyanova-Ivanova, A.K., Nedeltcheva, T.K. & Vladimirova, L.K. Spectrophotometric determination of oxygen content in calcium substituted RBCO (R=Eu, Gd, Er) superconductors. cent.eur.j.chem. 3, 432–440 (2005). https://doi.org/10.2478/BF02479273

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  • DOI: https://doi.org/10.2478/BF02479273

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