Temperature dependence of the pair correlation function in an inhomogeneous liquid: application to C24Cs

We study the properties of a model appropriate to stage 2 graphite intercalation compounds such as C24Cs and C24K. The Hamiltonian consists of an effective pair potential for the intercalate and a periodic background potential due to the graphite lattice. We obtain the pair correlation function over the range of temperatures 0–300 K. We find orientational effects and compare our results with data on C24Cs.