physica status solidi (b)

Remarks on the Ferromagnetic Solutions of the Extended Hubbard Model

Léa Jaccoud El-Jaick, A. Troper, A.A. Gomés

Published May 1, 1980• 3 citations

Abstract

Abstract The extended Hubbard Hamiltonian is studied using the method of the equations of motion. The decoupling approximations, suitable for the strong intra‐atomic repulsion limit are discussed. One of the approximations (mean field approach to deal with next neighbour interactions) is worked out numerically. The magnetization is obtained as a function of the strength of the next neighbour couplings and of the number of electrons per atom.

DOI: 10.1002/pssb.2220990143

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