Effect of realistic out-of-plane dopant potentials on the superfluid density of overdoped cuprates

Abstract

Recent experimental papers on hole-doped overdoped cuprates have argued that a series of observations showing unexpected behavior in the superconducting state imply the breakdown of the quasiparticle-based Landau-BCS paradigm in that doping range. In contrast, some of the present authors have argued that a phenomenological "dirty $d$-wave" theoretical analysis explains essentially all aspects of thermodynamic and transport properties in the superconducting state, provided the unusual effects of weak, out-of-plane dopant impurities are properly accounted for. Here we attempt to place this theory on a more quantitative basis by performing $\text{ab-initio}$ calculations of dopant impurity potentials for LSCO and Tl-2201. These potentials are more complex than the pointlike impurity models considered previously, and require calculation of forward scattering corrections to transport properties. Including realistic, ARPES-derived bandstructures, Fermi liquid renormalizations, and vertex corrections, we show that the theory can explain semiquantitatively the unusual superfluid density measurements of the two most studied overdoped materials.

19 page, 13 figures

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Cited by in corpus (11)

• Evolution of plasmon excitations across the phase diagram of the cuprate superconductor La${}_{2-x}$Sr${}_x$CuO${}_4$
• From non-metal to strange metal at the stripe-percolation transition in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Simulating Superconducting Properties of Overdoped Cuprates: the Role of Inhomogeneity
• Strange metals and planckian transport in a gapless phase from spatially random interactions
• Comment on "Anisotropic Scattering Caused by Apical Oxygen Vacancies in Thin Films of Overdoped High-Temperature Cuprate Superconductors"
• Inhomogeneity, Fluctuations, and Gap Filling in Overdoped Cuprates
• Superconductivity in Compositionally-Complex Cuprates with the YBa${}_2$Cu${}_3$O${}_{7-x}$ Structure
• Optical conductivity of overdoped cuprates from ab-initio out-of-plane impurity potentials
• Emergence of Fermi-liquid and BCS physics in overdoped cuprates
• Magnetotransport in overdoped La${}_{2-x}$Sr${}_x$CuO${}_4$: Effect of anisotropic scattering
• Beyond Homes scaling: disorder, the Planckian bound and a new universality