Current dependent fluctuations in a Bi 2 Sr 2 CuO 6+δ thin film

I. Sfar, Z. Z. Li, F. Bouquet, H. Raffy and L. Fruchter ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2005, vol. 46, issue 2, 215-221

Abstract: The current dependence of the excess conductivity is measured up to ≃3T c for a Bi 2 Sr 2 CuO 6+δ thin film, as a function of doping. It is found to be anomalously sensitive to the transport current and to behave as a universal function of T/T c in the whole doping range. We discuss these results in the perspective of a granular superconductor with a gapless-like behavior. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Date: 2005
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DOI: 10.1140/epjb/e2005-00224-2

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