Insensitivity of d-wave pairing to disorder in the high-temperature cuprate superconductors

A. F. Kemper; D. G. S. P. Doluweera; T. A. Maier; M. Jarrell; P. J. Hirschfeld; H-P. Cheng

doi:10.1103/PhysRevB.79.104502

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Insensitivity of d-wave pairing to disorder in the high-temperature cuprate superconductors

A. F. Kemper, D. G. S. P. Doluweera, T. A. Maier, M. Jarrell, P. J. Hirschfeld, H-P. Cheng

DOI 10.1103/PhysRevB.79.104502 · Physical Review B

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Abstract

Using a dynamical cluster quantum Monte Carlo approximation, we investigate the effect of local disorder on the stability of d-wave superconductivity including the effect of electronic correlations in both particle-particle and particle-hole channels. With increasing impurity potential, we find an initial rise of the critical temperature due to an enhancement of antiferromagnetic spin correlations, followed by a decrease of Tc due to scattering from impurity-induced moments and ordinary pair breaking. We discuss the weak initial dependence of Tc on impurity concentration found in comparison to experiments on cuprates.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown