The influence of electron correlations on the temperature dependent el
ectronic structure of ferromagnetic f.c.c. cobalt is investigated by a
many-body evaluation of a generalized model of magnetism. The single-
particle part of the model-Hamiltonian is taken from an LDA band struc
ture calculation. The interaction part contains two parameters, an int
raband Coulomb interaction U and an interband exchange J. With U = 3.5
eV and J = 0.3 eV the self-consistent model solution yields a magneti
c T = 0 moment of about 1.75 mu(B), and a Curie temperature of 1375 K.
The magnetic behaviour finds a conclusive microscopic explanation by
the temperature and density dependent quasiparticle density of states.
Typical differences as well as common features in the electronic stru
ctures of Fe, Co, and Ni are worked out. Contrary to Ni, no satellite
appears in Fe and Co.