Effects of nonstoichiometry in A_3-xC₆₀ (A= K, Rb)

O. Gunnarsson
Max-Planck-Institut für Festkörperforschung, Stuttgart

We perform self-consistent Hartree calculations for a model of A_3-xC₆₀ (A= K, Rb) to study the effects of the presence of vacancies. We find that the strong vacancy potential is very efficiently screened and the the density of states is only weakly influenced by the presence of vacancies.

Recent Advances in the Chemistry and Physics of Fullerenes and related Materials, Vol. 5, Eds. K.M. Kadish and R.S. Ruoff, Electrochemistry Society Proceedings 97-42, page 488 (1997)

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