Sampling the two-dimensional density of states g(E,M) of a giant magnetic molecule using the Wang-Landau method
Abstract
The Wang-Landau method is used to study the magnetic properties of the giant paramagnetic molecule Mo72Fe30 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.
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