Absence of superconductivity down to 80 mK in graphite intercalated BaC6

  • Nakamae S
  • Gauzzi A
  • Ladieu F
 et al. 
  • 4


    Mendeley users who have this article in their library.
  • 8


    Citations of this article.


Following recent theoretical and experimental investigations of superconductivity in the graphite intercalated compounds CaC6and SrC6, we report on a very low temperature magnetisation study on BaC6down to 80 mK. The data show no trace of superconductivity even at fields as low as 0.7 Oe. Using a McMillan parametrisation of the BCS parameters, we conclude that the Coulomb pseudopotential is expected to be as large as 0.19 in both BaC6and SrC6, i.e. 40% larger than in CaC6. As an alternative scenario, we argue that extrinsic effects such as intercalant disorder may depress superconductivity in both BaC6and SrC6, as in the case of CaC6. © 2007 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • A. Superconductors
  • D. Electron-phonon interactions
  • D. Magnetic susceptibility
  • D. Order-disorder effects

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free