Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2006 Jun 2;96(21):217002.
doi: 10.1103/PhysRevLett.96.217002. Epub 2006 Jun 2.

Specific heat of the Ca-intercalated graphite superconductor CaC6

J S Kim  1 , R K Kremer, L Boeri, F S Razavi
Affiliations

Specific heat of the Ca-intercalated graphite superconductor CaC6

J S Kim et al. Phys Rev Lett. .

Abstract

The superconducting state of Ca-intercalated graphite CaC6 has been investigated by specific heat measurements. The characteristic anomaly at the superconducting transition (Tc = 11.4 K) indicates clearly the bulk nature of the superconductivity. The temperature and magnetic field dependence of the electronic specific heat are consistent with a fully gapped superconducting order parameter. The estimated electron-phonon coupling constant is lambda = 0.70 +/- 0.04, suggesting that the relatively high Tc of CaC6 can be explained within the intermediate coupling BCS approach.

PubMed Disclaimer

LinkOut - more resources