Locally Self-Consistent Multiple Scattering (LSMS) Method The locally self-consistent multiple scattering (LSMS) method is an order-N approach to the calculation of the electronic structure of large systems within the local density approximation (LDA). It is based on the observation that a good approximation to the electron density and the density of states on a particular atom within a large system, and thereby the total energy of that system, can be obtained by considering only the electronic multiple scattering processes in a finite spatial region centered at that atom. (Source: