Bulk evidence for single-Gap s-wave superconductivity in the intercalated graphite superconductor C6Yb |
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| Authors: | Sutherland Mike Doiron-Leyraud Nicolas Taillefer Louis Weller Thomas Ellerby Mark Saxena S S |
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| Affiliation: | Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 OHE, United Kingdom. |
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| Abstract: | We report measurements of the in-plane electrical resistivity rho and thermal conductivity kappa of the intercalated graphite superconductor C6Yb down to temperatures as low as Tc/100. When a field is applied along the c axis, the residual electronic linear term kappa0/T evolves in an exponential manner for Hc1
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