  In this work, by employing Density Functional Theory, we compute and discuss
some geometric and magnetic properties of the monomer, dimer and trimer of
NiFe2 O4 . The calculations are performed at the UDFT/ B3LYP level of
calculation, by employing the LANL2DZ effective pseudo potential. The results
of the Mulliken spin densities and the spin polarization will be presented.
Finally the outcome of the system density of states is considered.
