Intercalation of C₆₀ fullerene crystals with calcium and barium via self-propagating high-temperature synthesis

We report a process for rapid intercalation of C-60 fullerene crystals using self-propagating high-temperature synthesis. The process has been used to intercalate C-60 fullerene crystals with calcium and barium. The superconducting transition temperatures of the intercalated fullerites have been measured, and the calcium-intercalated C-60 fullerene crystals have been characterized by X-ray diffraction.