Superconducting fluctuation study above Tcof Bi(Pb)-Sr-Ca-Cu-O thin films made by sputtering

  • Labdi S
  • Megtert S
  • Raffy H
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Abstract

c-axis oriented thin films of BiSrCaCuO (2212 and 2223 phases) have been prepared and their excess conductivity Δσ(T) have been analyzed above Tc. In all cases Δσ(T) displays a two-dimensional behaviour in a wide range of temperature. The results are consistent with the 2D limit of the Lawrence-Doniach model. © 1993.

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