d-wave model for microwave response of high-Tc superconductors

P. J. Hirschfeld; W. O. Putikka; D. J. Scalapino

doi:10.1103/PhysRevB.50.10250

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d-wave model for microwave response of high-Tc superconductors

P. J. Hirschfeld, W. O. Putikka, D. J. Scalapino

DOI 10.1103/PhysRevB.50.10250 · Physical Review B

T1

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Abstract

We develop a simple theory of the electromagnetic response of a d-wave superconductor in the presence of potential scatterers of arbitrary s-wave scattering strength and inelastic scattering by antiferromagnetic spin fluctuations. In the clean London limit, the conductivity of such a system may be expressed in ‘‘Drude’’ form, in terms of a frequency-averaged relaxation time. We compare predictions of the theory with recent data on Y-Ba-Cu-O and Bi-Sr-Si-Cu-O crystals and on Y-Ba-Cu-O films. While fits to penetration-depth measurements are promising, the low-temperature behavior of the measured microwave conductivity appears to be in disagreement with our results. We discuss implications for d-wave-pairing scenarios in the cuprate superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown