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Uemura Plot as a Certificate of Two-dimensional Character of Superconducting Transition for Quasi-two-dimensional HTS

G. Sergeeva

cond-matarXiv:cond-mat/0102293

Abstract

With using general properties of superconducting state for 2D systems the universal temperature dependence of the penetration length is found out for quasi-2D HTS, that leads to Uemura plot and evidences about 2D character of superconducting transition. It is shown that from the measurements of c-axis resistivity and of the penetration length the value of the interval of 3D superconducting fluctuations can be determined.

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