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Superconductivity of bulk CaC6

N. Emery·C. Herold·M. d Astuto·V. Garcia·Ch. Bellin·J. F. Mareche·P. Lagrange·G. Loupias
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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, which has rhombohedral symmetry. We have clearly shown the occurrence of superconductivity in the bulk sample at 11.5K, using magnetization measurements.

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N. Emery, C. Herold, M. d Astuto, V. Garcia, Ch. Bellin, J. F. Mareche, P. Lagrange, G. Loupias. 2005-06-03. Superconductivity of bulk CaC6. https://doi.org/10.1103/physrevlett.95.087003

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