Superconductivity in Bad Metals

V. J. Emery and S. A. Kivelson
Phys. Rev. Lett. 74, 3253 – Published 17 April 1995
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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 ρ(T) falls below a critical value. Application of these ideas to high temperature superconductors accounts for the variation of ρ(Tc) in radiation-damaged films; gives an upper bound on Tcns, where ns is the zero-temperature superfluid density; and shows that, with screening, phase fluctuations give a linear temperature dependence of ns at low temperatures.

  • Received 28 September 1994


©1995 American Physical Society

Authors & Affiliations

V. J. Emery

  • Department of Physics, Brookhaven National Laboratory, Upton, New York 11973

S. A. Kivelson

  • Department of Physics, University of California at Los Angeles, Los Angeles, California 90095

Comments & Replies

Comment on “Superconductivity in Bad Metals”

Guy Deutscher
Phys. Rev. Lett. 76, 1555 (1996)

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Vol. 74, Iss. 16 — 17 April 1995

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