Journal article
Anisotropic superconductivity in bulk CaC6
Abstract
The intercalated graphite superconductor CaC6 with Tc∼11.5K has been characterized with angular dependent magnetoresistance measurements. Above Tc, the interplane resistivity can be fitted to the Bloch-Grüneisen model providing a Debye temperature of θD=175K. From these parameters, the McMillan formula yields an electron-phonon coupling constant λ∼1.1, placing this material in the intermediate-to-strong coupling regime. For 1.4K
Authors
Jobiliong E; Zhou HD; Janik JA; Jo Y-J; Balicas L; Brooks JS; Wiebe CR
Journal
Physical Review B, Vol. 76, No. 5,
Publisher
American Physical Society (APS)
Publication Date
August 1, 2007
DOI
10.1103/physrevb.76.052511
ISSN
2469-9950