Charge Distribution incDirection in Lamellar Graphite Acceptor Intercalation Compounds

Abstract

We calculate the charge distribution $\rho \mathrm{}\left(z\right)\mathrm{}$ and Fermi-level distribution among the different graphite layers in a lamellar graphite acceptor compound. The charge distribution is highly nonhomogeneous and, because of the semimetallic nature of graphite, nonlinear effects are important. The calculations for $\rho \mathrm{}\left(z\right)\mathrm{}$ are performed in terms of a generalized Thomas-Fermi model and show that there is a transition at short distances from the intercalate from a $z^{-4\mathrm{}}$ power law to an exponential asymptotic decay.