Current-Induced Superconductor-Insulator Transition in Granular High-T_c Superconductors

2001/08/20 by Y. Kopelevich, C. A. M. dos Santos, S. Moehlecke +1
Physics and Astronomy · #cond-mat.supr-con

paper · pdf

published as International book series: Studies of High Temperature Superconductors, Vol. 39, Chapter 8, p. 201, ed. A. V. Narlikar

arxiv created 2001/08/20 · arxiv updated 2009/11/30

Abstract

In this work we report a systematic study of electrical current effects on superconducting properties of granular Y_1-xPr_xBa₂Cu₃O_7-δ samples with x close to the critical Pr concentration above which the superconductivity vanishes. The results indicate the occurrence of superconductor-insulator quantum phase transition (SIT) driven by the applied electrical current, and suggest that the current-induced SIT can be considered as the dynamical counterpart of the magnetic-field- tuned SIT.

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