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

Y. Kopelevich, C. A. M. dos Santos, S. Moehlecke +1

In this work we report a systematic study of electrical current effects on superconducting properties of granular Y${}_{1-x}$Pr${}_x$Ba${}_2$Cu${}_3$O${}_{7-\delta }$ samples with x close to…