Hyperfine Interactions

, Volume 62, Issue 1–2, pp 65–71 | Cite as

A study of Fe-doped Bi-Sr-Ca-Cu superconductors

  • H. Tang
  • Z. Q. Qiu
  • Y. W. Du
  • J. C. Walker
Article

Abstract

We have substituted 1.5% of Fe for Cu in several “2212” and “2223” Bi-Sr-Ca-Cu superconductors. All of the samples show a reduction ofT c about 13 K due to the Fe impurities. Mössbauer measurements at room temperature reveal the structural characteristics such as stacking faults and intergrowth of different phases in these Bi-based compounds on the microscopic scale. The susceptibility ofT c to Fe-doping in the Bi-“2212” or “2223” system is comparable to that of the “123” system but much smaller than that of the “214” system. The interplanar correlation existing in the “123” and the Bi-“2212” and “2223” systems seems to play an important role in sustaining the high temperature superconductivity and weakening the detrimental effect of impurity elements on superconductivity in these two systems.

Keywords

Thin Film Structural Characteristic Detrimental Effect High Temperature Superconductivity Impurity Element 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1990

Authors and Affiliations

  • H. Tang
    • 1
  • Z. Q. Qiu
    • 1
  • Y. W. Du
    • 1
  • J. C. Walker
    • 1
  1. 1.Department of Physics and AstronomyThe Johns Hopkins UniversityBaltimoreUSA

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