Superconductivity in Bad Metals
- 17 April 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (16), 3253-3256
- https://doi.org/10.1103/physrevlett.74.3253
Abstract
We introduce a model of the superconducting transition in a bad metal, and show that quantum and classical phase fluctuations prevent long-range order unless the resistivity falls below a critical value. Application of these ideas to high temperature superconductors accounts for the variation of in radiation-damaged films; gives an upper bound on , where is the zero-temperature superfluid density; and shows that, with screening, phase fluctuations give a linear temperature dependence of at low temperatures.
Keywords
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