Topology peculiarities of graphite films of nanometer thickness

The graphite films of nanometer thickness were produced by condensation of carbon from gaseous phase onto polycrystalline nickel. The films have wrinkled surface with the atomically flat regions separated by the ridges. Together with a net of randomly oriented ridges the periodically ordered wrinkles have been observed. Exposure of the grown graphite films in air leads to appearance of gaseous blisters gradually growing with time. We propose explanations of the mechanisms responsible for formation of these topology peculiarities.