Theory of the {ital c}-axis penetration depth in the cuprates
- Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)
- Department of Physics and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637 (United States)
Recent measurements of the London penetration-depth tensor in the cuprates find a weak temperature dependence along the {ital c} direction that is seemingly inconsistent with evidence for {ital d}-wave pairing deduced from in-plane measurements. We demonstrate in this paper that these disparate results are not in contradiction, but can be explained within a theory based on incoherent quasiparticle hopping between the CuO{sub 2} layers. By relating the calculated temperature dependence of the penetration depth {lambda}{sub {ital c}}({ital T}) to the {ital c}-axis resistivity, we show how the measured ratio {lambda}{sup 2}{sub {ital c}}(0)/{lambda}{sup 2}{sub {ital c}}({ital T}) can provide insight into the behavior of {ital c}-axis transport below {ital T}{sub {ital c}} and the related issue of {open_quote}{open_quote}confinement.{close_quote}{close_quote} {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 434526
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 2 Vol. 53; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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