Abstract
We use the Monte Carlo simulation technique to study the coercive behaviour of an assembly of single-domain ferromagnetic particles with random anisotropy axes directions, embedded in an insulating matrix and interacting via dipolar forces. We present results for the dependence of the coercivity on the volume packing fraction and temperature. We find a peak of the coercive field at the percolation threshold. We compare our theoretical results with experimental findings.
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