Lattice green's function of perturbed body centered cubic lattice, revisited

الملخص EN

An expression for the Green's function of Body Centered Cubic (BCC) lattice is evaluated analytically and numerically for one and two impurities interacting with the first nearest-neighboring host atoms.

The density of states (DOS), phase shift and scattering cross section are expressed in terms of complete elliptic integrals of the first kind.