%0 Journal Article
%A
%T A classical theory of lattice dynamics
%D 1970
%R 10.1098/rspa.1970.0116
%J Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
%P 279-291
%V 317
%N 1529
%X A new formulation of the classical theory of lattice dynamics is presented which correctly reproduces all the features of the quantum theoretical results. This new approach starts with a more detailed description of the various potential functions that contribute to the total potential energy and uses these to define a new set of potential functions that depend on the initial configuration only. The expansion of the total potential energy in powers of nuclear displacements is then found to have a particularly simple form in terms of these configuration dependent potentials.
%U http://rspa.royalsocietypublishing.org/content/royprsa/317/1529/279.full.pdf