Sampling the two-dimensional density of statesg(E,M)of a giant magnetic molecule using the Wang-Landau method

2006/12/13 by S. Torbruegge, Stefan Torbrügge, Jürgen Schnack +1
Chemistry · Materials Science · Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced NMR Techniques and Applications #Magnetism in coordination complexes #cond-mat.mtrl-sci #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevb.75.054403

published as Phys. Rev. B 75 (2007) 054403 · 5 pages, 9 figures, submitted to Phys. Rev. B

arxiv created 2006/12/13 · openalex publication_date 2007/02/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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.

Citations

• Determining the density of states for classical statistical models: A random walk algorithm to produce a flat histogram