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Influence of annealing on the critical temperature of Bi–Pb–Sr–Ca–Cu–O thin films

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Abstract

Superconducting Bi–Pb–Sr–Ca–Cu–O (BPSCCO) thin films were grown on MgO substrates by a spray pyrolysis technique, followed by a solid-state reaction. The thin films with nominal composition Bi1.65Pb0.4Sr1.2Ca1.2Cu2.5(NO3)δ were grown varying mainly the annealing temperature between 835 and 855 °C in order to observe the influence on the critical temperature Tc. At 855 °C the higher Tc was obtained for the 2212 phase. The thin films were then analyzed by X-ray diffraction, R-T measurements and atomic absorption spectroscopy.

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Acknowledgement

The authors would like to thank to Dr. Jaime Ortiz (ESFM-IPN, Mexico) for reading the manuscript.

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Authors and Affiliations

  1. Escuela Superior de Física y Matemáticas, IPN, Edif. 9 UPALM, Av. Politécnico s/n, Mexico, D.F, 07738, Mexico

    E. Díaz-Valdés, C. Mejía-García & J. L. López-López

  2. Departamento de Física, CINVESTAV, IPN, A. P. 14–740, Mexico, D. F, 07300, Mexico

    M. Jergel

Authors
  1. E. Díaz-Valdés
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  2. C. Mejía-García
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  3. J. L. López-López
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  4. M. Jergel
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Correspondence to C. Mejía-García.

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Díaz-Valdés, E., Mejía-García, C., López-López, J.L. et al. Influence of annealing on the critical temperature of Bi–Pb–Sr–Ca–Cu–O thin films. J Mater Sci: Mater Electron 18, 1167–1170 (2007). https://doi.org/10.1007/s10854-007-9286-5

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  • DOI: https://doi.org/10.1007/s10854-007-9286-5

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