The cellular method for graphite

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Abstract
The cellular method has been used to obtain the full band structure of three-dimensional graphite for all points and lines of symmetry in the Brillouin zone. A discussion of the way the spherically symmetric potential used in this work has been obtained is also given and the convergence of the cellular expansion reported. The bands thus obtained indicate that the interlayer interaction is important primarily for bands derived from pz orbitals on the basis atoms, though splitting of other levels is not always small. Comparison with empirical Fermi surface parameters is satisfactory.