Universal heat conduction in YBa2Cu3O6.9

Louis Taillefer; Benoit Lussier; Robert Gagnon; Kamran Behnia; Hervé Aubin

doi:10.1103/PhysRevLett.79.483

Universal heat conduction in YBa₂Cu₃O_6.9

Louis Taillefer
, Benoit Lussier
, Robert Gagnon
, Kamran Behnia
, Hervé Aubin

McGill University
Laboratoire de Physique des Solides

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The thermal conductivity of YBa₂Cu₃O_6.9 was measured at low temperatures in untwinned single crystals with concentrations of Zn impurities from 0% to 3% of Cu. A linear term k₀/T = 0.19mWK^-2cm^-1 is clearly resolved as T → 0, and found to be virtually independent of Zn concentration. The existence of this residual normal fluid strongly validates the basic theory of transport in unconventional superconductors. Moreover, the observed universal behavior is in quantitative agreement with calculations for a gap function of d -wave symmetry.

langue originale	Anglais
Pages (de - à)	483-486
Nombre de pages	4
journal	Physical Review Letters
Volume	79
Numéro de publication	3
Les DOIs	https://doi.org/10.1103/PhysRevLett.79.483
état	Publié - 1 janv. 1997
Modification externe	Oui

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10.1103/PhysRevLett.79.483

Contient cette citation

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title = "Universal heat conduction in YBa2Cu3O6.9",

abstract = "The thermal conductivity of YBa2Cu3O6.9 was measured at low temperatures in untwinned single crystals with concentrations of Zn impurities from 0\% to 3\% of Cu. A linear term k0/T = 0.19mWK-2cm-1 is clearly resolved as T → 0, and found to be virtually independent of Zn concentration. The existence of this residual normal fluid strongly validates the basic theory of transport in unconventional superconductors. Moreover, the observed universal behavior is in quantitative agreement with calculations for a gap function of d -wave symmetry.",

author = "Louis Taillefer and Benoit Lussier and Robert Gagnon and Kamran Behnia and Herv{\'e} Aubin",

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AU - Taillefer, Louis

AU - Lussier, Benoit

AU - Gagnon, Robert

AU - Behnia, Kamran

AU - Aubin, Hervé

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The thermal conductivity of YBa2Cu3O6.9 was measured at low temperatures in untwinned single crystals with concentrations of Zn impurities from 0% to 3% of Cu. A linear term k0/T = 0.19mWK-2cm-1 is clearly resolved as T → 0, and found to be virtually independent of Zn concentration. The existence of this residual normal fluid strongly validates the basic theory of transport in unconventional superconductors. Moreover, the observed universal behavior is in quantitative agreement with calculations for a gap function of d -wave symmetry.

AB - The thermal conductivity of YBa2Cu3O6.9 was measured at low temperatures in untwinned single crystals with concentrations of Zn impurities from 0% to 3% of Cu. A linear term k0/T = 0.19mWK-2cm-1 is clearly resolved as T → 0, and found to be virtually independent of Zn concentration. The existence of this residual normal fluid strongly validates the basic theory of transport in unconventional superconductors. Moreover, the observed universal behavior is in quantitative agreement with calculations for a gap function of d -wave symmetry.

U2 - 10.1103/PhysRevLett.79.483

DO - 10.1103/PhysRevLett.79.483

M3 - Article

AN - SCOPUS:0031192045

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EP - 486

JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Universal heat conduction in YBa2Cu3O6.9

Résumé

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Contient cette citation

Universal heat conduction in YBa₂Cu₃O_6.9