Abstract

A simple calculation, based on the effective mass approximation and assuming a purely two-dimensional Fermi surface, is performed to estimate the dependence of a-axis conductivity σ a upon intercalant concentration X in the lamellar compounds of graphite. The predicted behavior σ a ~ X 1 2 is in approximate agreement with experiment only for the case of ICI, which is attributed to the unusually large layer spacing, hence weak interaction between layers, in this compound.

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