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arXiv · 1105.1056

Arrays of Josephson junctions between unconventional superconductors

D. V. Khveshchenko·R. Crooks
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Abstract

We study large arrays of mesoscopic junctions between gapless superconductors where the tunneling processes of both, particle-hole and Cooper, pairs give rise to a strongly retarded effective action which, contrary to the standard case, can not be readily characterized in terms of a local Josephson energy. This complexity is expected to arise in, e.g., the grain boundary and c-axis junctions in layered high-T_c superconductors. A new representation for describing collective phenomena in this system is introduced, and its phase diagram is discussed, alongside the electrical conductivity.

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D. V. Khveshchenko, R. Crooks. 2011-05-05. Arrays of Josephson junctions between unconventional superconductors. https://doi.org/10.1103/physrevb.84.132502

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