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

Joshua L. Cohn

doi:10.1103/PhysRevB.53.R2963

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

Joshua L. Cohn

Physics

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13 Scopus citations

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)
Pages (from-to)	R2963-R2966
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	53
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.53.R2963
State	Published - Jan 1 1996

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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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.",

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AB - 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.

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

Abstract

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