Thermodynamic fluctuations in the high-perovskite superconductors
- 1 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (1), 537-540
- https://doi.org/10.1103/physrevb.37.537
Abstract
The role of fluctuations in the breakdown of mean-field theory in the new high- perovskite superconductors is analyzed. Both the breakdown of the classical critical exponents (the Ginzburg criterion) and the quantitative breakdown of mean-field theory (the Brout criterion) are discussed. It is found that for certain sets of observed parameters for these materials, a breakdown of mean-field theory is to be expected.
Keywords
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