Penetration-depth calculations in the ab and c directions in a layered S/N superconductor

W. A. Atkinson; J. P. Carbotte

doi:10.1103/PhysRevB.51.16371

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Penetration-depth calculations in the ab and c directions in a layered S/N superconductor

W. A. Atkinson, J. P. Carbotte

DOI 10.1103/PhysRevB.51.16371 · Physical Review B

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Abstract

We present the results of calculations of the penetration depths λab and λc (the subscripts refer to the direction of the screening currents). Our model is a layered superconducting/normal metal (S/N) model, in which the two types of layers are stacked in alternating fashion. The S and N layers are coupled in a coherent fashion and the N layer is driven superconducting by a proximity effect. We calculate the penetration depths for both d-wave and s-wave order parameters for a range of interlayer coupling strengths, and we discuss the effect that the interlayer coupling has on the temperature dependence of the penetration depths. We finish by comparing our results with experimental observations of YBa2Cu3O7.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O6.95 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown