抄録
Graphite intercalation compounds (GICs) are one of the classic carbon-related materials. Inserting various atoms or molecules into the interlayer spaces of graphite leads to the formation of GICs, in which the graphite's lattice structure is preserved. Since GICs have certain attractive properties for practical materials such as high electrical conductivities, numerous studies on GICs were carried out around in the 1980's. Today, GIC research continues to be pursued. Especially, the calcium-GIC is the one of the hottest topics in the research fields of carbon material and superconductivity. Here, the fundamentals and the recent topics related to GICs are briefly reviewed.
