Abstract
We have obtained bulk samples of the graphite intercalation compound, , 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 , 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.
- Received 3 June 2005
DOI:https://doi.org/10.1103/PhysRevLett.95.087003
©2005 American Physical Society