Superconducting-state enhancement of thermal conductivity in the cuprates: Correlation with the pair density

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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 languageEnglish (US)
Pages (from-to)R2963-R2966
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume53
Issue number6
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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