On the theory of ferromagnetism of metallic compounds

Abstract Electron structure and magnetic properties of compounds with perovskite-type lattices are studied. The problem is treated in terms of the generalized Hubbard model with an infinite electron–electron repulsive energy in the same atom. The phase diagram of ferromagnetism existence as function of parameters (hd, hp) of t2g6 or 3d10 and 2p6 shell underfilling degree for transitions elements and oxygen is constructed.