Spin-Glass State of a Randomly Diluted Granular Superconductor
- 26 August 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (9) , 1014-1017
- https://doi.org/10.1103/physrevlett.55.1014
Abstract
A randomly diluted lattice of Josephson tunnel junctions is used as a model to generate a replicated Landau-Ginzburg field theory describing the properties of diluted superconductors near the percolation threshold. The model predicts Meissner and Abrikosov phases and a spin-glass phase with frozen currents, a nonvanishing Edwards-Anderson order parameter, and power-law decay of correlations of the magnetic field.Keywords
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