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 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.

5 pages, 9 figures, submitted to Phys. Rev. B

References in corpus (2)

• Metamagnetic phase transition of the antiferromagnetic Heisenberg icosahedron
• Observation of field-dependent magnetic parameters in the magnetic molecule {Ni4Mo12}

Cited by in corpus (6)

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• Large-scale numerical investigations of the antiferromagnetic Heisenberg icosidodecahedron
• A portable and flexible implementation of the Wang--Landau algorithm in order to determine the Density of States
• Thermodynamics of the spin square