Generally, several metals, such as Ni, Fe, Co and Mo, were doped as the catalysis on the production of diamond, fullerene and carbon nanotube. In the present method, heat treated carbon films containing such metale were analyzed based on transmission electron microscope technique. The difference of crystallization by doped metal has been elucidated. Present result will give the development to a wide range of new opportunities for research and applications in the field of nanotechnology.
