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Appearance of a new superconducting phase in Gd(Ba2-xPr x)Cu3O7+δ

Mohammadizadeh, M. R ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. DOI: 10.1002/pssc.200304473
  3. Publisher: 2004
  4. Abstract:
  5. An unusual hump on the resistivity vs. temperature curve of Gd(Ba 2-xPrx)Cu3O7+δ samples have been observed for particular values of Pr doping. Investigation of the origin of this effect has led to an important result. Based on the Rietveld refinement of the XRD patterns, we have found that the Ba atom substitution at the rare earth site could lead to superconductivity in some parts of the grains at T p ∼ 80-90 K, which appears as a hump on the p(T) curve. Our result is in line with the previously proposed possibility of existence of superconductivity in Pr-123 due to the Ba atom substituted at Pr site. © 2004 WILEY-VCH Verlag GmbH & Co. KOaA, Weinheim
  6. Keywords:
  7. Doping (additives) ; X ray diffraction analysis ; Polycrystalline materials ; Substitution reactions ; Superconducting transition temperature ; Superconductivity
  8. Source: Physica Status Solidi C: Conferences ; Volume 1, Issue 7 , 2004 , Pages 1879-1882 ; 16101634 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/pssc.200304473