Multiple scattering theory beyond the muffin‐tin approximation

Multiple scattering theory appears to be the most efficient means of extracting the chemical and physical implications of the density functional method developed by Slater and by Hohenberg, Kohn and Sham for the study of inhomogeneous many‐electron systems. The implications of this approach to electronic exchange and correlation have been obscured by the almost universal use of the muffin‐tin approximation in the application of multiple scattering theory. This paper contends that an understanding of the sources of the efficiency of multiple scattering theory leads directly to a particular method of eliminating the muffin‐tin approximation. Copyright © 1974 John Wiley & Sons, Inc.