Abstract
Micromagnetic simulations are used to examine the effects of cubicand axial anisotropy, magnetostatic interactions and temperature onM–H loops for a collection of magnetic dipoles on fcc and sc lattices. We employ a simple modelof interacting dipoles that represent single-domain particles in an attempt to explain recentexperimental data on ordered arrays of magnetoferritin nanoparticles that demonstrate thecrucial role of interactions between particles in an fcc lattice. Significant agreement betweenthe simulation and experimental results is achieved, and the impact of intra-particledegrees of freedom and surface effects on thermal fluctuations is investigated.
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