Aggregation and segregation in a mixture of magnetic and nonmagnetic particles

Cluster-cluster aggregation models have been used to study aggregation processes both for nonmagnetic particles and for magnetic particles interacting via a dipolar interaction. In this paper we examine the behavior when there is a mixture of magnetic and nonmagnetic particles. There is a tendency for some segregation of the two components. A parameter characterizing the segregation is defined and its temperature and density dependence are discussed.