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Josephson Currents and Gap Enhancement in Graph Arrays of Superconductive Islands
2021
Entropy
Evidence is reported that topological effects in graph-shaped arrays of superconducting islands can condition superconducting energy gap and transition temperature. The carriers giving rise to the new phase are couples of electrons (Cooper pairs) which, in the superconducting state, behave as predicted for bosons in our structures. The presented results have been obtained both on star and double comb-shaped arrays and the coupling between the islands is provided by Josephson junctions whose
doi:10.3390/e23070811
fatcat:jgbdzqbth5a5jlmzrsk27jocbu