eprintid: 116271 rev_number: 45 eprint_status: archive userid: 608 dir: disk0/00/11/62/71 datestamp: 2010-10-22 05:56:05 lastmod: 2021-10-04 01:02:34 status_changed: 2010-10-22 05:56:05 type: article metadata_visibility: show item_issues_count: 0 creators_name: Sutherland, M creators_name: Doiron-Leyraud, N creators_name: Taillefer, L creators_name: Weller, T creators_name: Ellerby, M creators_name: Saxena, SS title: Bulk evidence for single-gap s-wave superconductivity in the intercalated graphite superconductor C6Yb ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 keywords: THERMAL-CONDUCTIVITY, FIELD, STATE, MODEL note: © 2007 The American Physical Society 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. date: 2007-02-09 publisher: AMERICAN PHYSICAL SOC official_url: http://dx.doi.org/10.1103/PhysRevLett.98.067003 vfaculties: VMPS oa_status: green language: eng primo: open primo_central: open_green article_type_text: Article verified: verified_batch elements_source: Web of Science elements_id: 80930 doi: 10.1103/PhysRevLett.98.067003 language_elements: EN lyricists_name: Ellerby, Mark lyricists_id: MELLE30 full_text_status: public publication: PHYS REV LETT volume: 98 number: 6 article_number: 067003 issn: 0031-9007 citation: 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 <https://doi.org/10.1103/PhysRevLett.98.067003>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/116271/1/116271.pdf