Electron Correlations at Metallic Densities. III. Generalized Spin Susceptibility and Spin Correlation

Abstract

The approximation method developed by Lobo et al. for classical distribution function is applied to the spin dependent Wigner distribution function in a quantum system. A quantum mechanical expression for generalized spin susceptibility of an interacting electron gas is derived. Self-consistent numerical calculations of magnetic structure factor and generalized spin susceptibility are carried out for an electron gas at metallic density of electrons. Spin dependent pair distribution function and static spin susceptibility are numerically calculated from the calculated magnetic structure factor. The results for the pair distribution function for antiparallel spins are found to be positive for the entire range of real metallic density of electrons.