1983 Volume 52 Issue 1 Pages 223-232
Self-consistent non-empirical calculations of band structures of higher stage graphite intercalation compounds have been performed up to the 6-th stage by using the numerical-basis-set LCAO method. The calculations are carried out for a thin film of n contiguous graphite layers bounded by two ionized intercalant layers. From these calculations, the charge distribution along the c-axis and the stage dependence of the Fermi-level density of states are determined. It is clarified that the c-axis charge distribution is extremely inhomogeneous and that the effect of the σ bands is essentially important in determining the charge distribution along the c-axis. The measured stage dependence of the orbital contribution in the total magnetic susceptibility of alkali-metal compounds is discussed on the basis of the calculated results of the c-axis charge distribution.
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