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Critical Current Enhancement due to an Electric Field in a Granular d-Wave Superconductor

Daniel Dominguez·Cristina Wiecko·Jorge V. Jose
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Abstract

We study the effects of an electric-field in the transport properties of bulk granular superconductors with different kinds of disorder. We find that for a d-wave granular superconductor with random $π$-junctions the critical current always increases after applying a strong electric field, regardless of the polarity of the field. This result plus a change in the voltage as a function of the electric field are in good agreement with experimental results in ceramic high T_c superconductors.

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Daniel Dominguez, Cristina Wiecko, Jorge V. Jose. 1999-10-22. Critical Current Enhancement due to an Electric Field in a Granular d-Wave Superconductor. https://doi.org/10.1103/physrevlett.83.4164

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