Renormalized Fluctuation Theory of Resistive Transition in High-Temperature Superconductors under Magnetic Field

We attempt to explain the broad resistive transition observed in high-temperature superconductors under an applied magnetic field by a renormalized theory of the order parameter fluctuations using a model of superconductors with layered structures. The results are compared with single-crystal resistivity data. They are in good agreement, at least in the higher temperature side of the resistive transition, where the theory is expected to be valid.

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