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. 2005 Aug 19;95(8):087003.
doi: 10.1103/PhysRevLett.95.087003. Epub 2005 Aug 18.

Superconductivity of bulk CaC6

N Emery  1 , C Hérold, M d'Astuto, V Garcia, Ch Bellin, J F Marêché, P Lagrange, G Loupias
Affiliations

Superconductivity of bulk CaC6

N Emery et al. Phys Rev Lett. .

Abstract

We have obtained bulk samples of the graphite intercalation compound, CaC6, by a novel method of synthesis from highly oriented pyrolytic graphite. The crystal structure has been completely determined showing that it is the only member of the MC6, metal-graphite compounds that has rhombohedral symmetry. We have clearly shown the occurrence of superconductivity in the bulk sample at 11.5 K, using magnetization measurements.

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