Far-infrared reflectivity and dynamical conductivity of an epitaxial YBa sub(2)Cu sub(3)O sub(7- delta ) thin film

The authors report on measurements of the far-infrared reflectivity of an epitaxial, oriented YBa sub(2)Cu sub(3)O sub(7- delta ) thin film for radiation with the electric-field vector parallel to the crystal (a, b)-plane and present an analysis that delivers evidence for two different superconducti...

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Bibliographic Details
Published in:Europhysics letters 1989-01, Vol.8 (7), p.679-684
Main Authors: Schuetzmann, J, Ose, W, Keller, J, Renk, K F, Roas, B, Schultz, L, Saemann-Ischenko, G
Format: Article
Language:English
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Summary:The authors report on measurements of the far-infrared reflectivity of an epitaxial, oriented YBa sub(2)Cu sub(3)O sub(7- delta ) thin film for radiation with the electric-field vector parallel to the crystal (a, b)-plane and present an analysis that delivers evidence for two different superconducting energy gaps, with 2 Delta (0)/k sub(B)T sub(c) approximately equals 1.9 and approximately equals 5.8.
ISSN:0295-5075