Abstract

Intercalation of aluminum atoms under a two-dimensional graphite film on a metal was studied by high-resolution Auger spectroscopy. The spectra were recorded directly from the highly heated (up to 2100 K) sample. It is shown that the efficiency of this process increases significantly if the film is of the island type, rather than continuous, and if part of the metal surface is not covered with graphite. It is concluded that the graphite-island boundaries are the defects via which the intercalating atoms penetrate under the graphite film.

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