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Superconductivity of Bulk CaC6

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Journal Phys Rev Lett
Specialty Biophysics
Date 2005 Oct 4
PMID 16196893
Citations 27
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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 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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