  We have analyzed the antiferromagnetic (J>0) Kondo-Hubbard lattice with the
band at half-filling by means of a perturbative approach in the strong coupling
limit, the small parameter is an arbitrary tight-binding band. The results are
valid for any band shape and any dimension. We have obtained the energies of
elementary charge and spin excitations as well as the magnetic correlations in
order to elucidate the magnetic and charge behavior of the Kondo lattice at
half-filling. Finally, we have briefly analyzed the ferromagnetic case (J<0),
which is shown to be equivalent to an effective antiferromagnetic Heisenberg
model.
