Effect of Electron Scattering on Ferromagnetic Band Width

The influence on the pseudoparticle density of states of the three scattering terms (spin disorder scattering and two resonance broadening terms) treated in Hubbard III for a half‐filled band is investigated in the ferromagnetic regime. For a given magnetization the minority band width increases with each scattering term included. For full Hubbard III, no band width renormalization is found. Hubbard III incorrectly gives the ferromagnetic state lower than the nonmagnetic for a half‐filled band.