Sutherland, M;
Doiron-Leyraud, N;
Taillefer, L;
Weller, T;
Ellerby, M;
Saxena, SS;
(2007)
Bulk evidence for single-gap s-wave superconductivity in the intercalated graphite superconductor C6Yb.
PHYS REV LETT
, 98
(6)
, Article 067003. 10.1103/PhysRevLett.98.067003.
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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 T-c/100. When a field is applied along the c axis, the residual electronic linear term kappa(0)/T evolves in an exponential manner for H-c1 < H < H-c2/2. This activated behavior is compelling evidence for an s-wave order parameter, and is a strong argument against the possible existence of multigap superconductivity.
| Type: | Article |
|---|---|
| Title: | Bulk evidence for single-gap s-wave superconductivity in the intercalated graphite superconductor C6Yb |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.067003 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.067003 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | THERMAL-CONDUCTIVITY, FIELD, STATE, MODEL |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/116271 |
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