Effects of nonstoichiometry in A3C60 (A= K, Rb)
Abstract
Description
We perform self-consistent Hartree calculations for a model of A_{3-x}C_{60} (A= K, Rb) to study the effects of the presence of vacancies. We find that the strong vacancy potential is very efficiently screened and that the density of states is only weakly influenced by the presence of vacancies.
7 pages, latex2e, 1 epsi figure, additional material avalable at http://www.mpi-stuttgart.mpg.de/docs/ANDERSEN/fullerene/
7 pages, latex2e, 1 epsi figure, additional material avalable at http://www.mpi-stuttgart.mpg.de/docs/ANDERSEN/fullerene/