Abstract
The systematics of the superconducting-state enhancements of in-plane thermal conductivity for (Formula presented) (Y-123), (Formula presented)(Formula presented)Ca(Formula presented)(Formula presented), (Formula presented)(Formula presented)Cu(Formula presented), and (Formula presented) single crystals are examined. For Y-123 the enhancements are shown to correlate with specific-heat jumps, a measure of the superconducting pair density. The substantially larger enhancements observed for Y-123 are attributed to the condensate arising from oxygen-filled CuO chains. We discuss the constraints imposed by measurements of microwave conductivity on the electronic contribution to this phenomenon.
Original language | English (US) |
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Pages (from-to) | R2963-R2966 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 53 |
Issue number | 6 |
DOIs | |
State | Published - Jan 1 1996 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics