Disorder and superfluid density in overdoped cuprate superconductors

Abstract

We calculate superfluid density for a dirty d-wave superconductor. The effects of impurity scattering are treated within the self-consistent t-matrix approximation, in weak-coupling BCS theory. Working from a realistic tight-binding parameterization of the Fermi surface, we find a superfluid density that is both correlated with T_c and linear in temperature, in good correspondence with recent experiments on overdoped La2-xSrxCuO4.

10 pages, 6 figures, including appended erratum

References in corpus (4)

• Two Gaps Make a High Temperature Superconductor?
• Quantum critical behaviour in the superfluid density of strongly underdoped ultrathin cuprate films
• Superfluid density and specific heat within self-consistent scheme for two-band superconductor
• Fermiology and electronic homogeneity of the superconducting overdoped cuprate Tl-2201 revealed by quantum oscillations

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