Sampling the two-dimensional density of states g(E,M) of a giant   magnetic molecule using the Wang-Landau method
  The Wang-Landau method is used to study the magnetic properties of the giant paramagnetic molecule Mo_72Fe_30 in which 30 Fe3+ ions are coupled via antiferromagnetic exchange. The two-dimensional density of states g(E,M) in energy and magnetization space is calculated using a self-adaptive version of the Wang-Landau method. From g(E,M) the magnetization and magnetic susceptibility can be calculated for any temperature and external field. 
S. Torbruegge, J. Schnack (U. Osnabrueck)