Abstract
By generalizing the acceptor model previously developed for stage-2 graphite intercalation compounds, we show that the principal Fermi surfaces of stage-3 and -4 compounds can be described in terms of a single extra parameter. This parameter is directly related to $c$-axis screening of the intercalant layer potential, and can be used to determine how much charge is transferred to the interior layers. We find that the interior-layer charge transfer is similar for all intercalants and stages. Screening effects, while substantial, are weaker than most theoretical predictions.
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