A vector moving model of non-aligned particulate media

Attention is given to a vector moving model which computes the total magnetization of a medium by convolving a material-dependence scalar Preisach function, P, with a process-dependent vector, D. This vector is sensitive to the average orientation and switching characteristics of particles constituting the medium, and determines the overall direction of the magnetization. The Preisach function, on the other hand, determines the magnitude of the moment attached to each D. Media composed of particles with uniaxial anisotropy, which are dispersed in planes parallel to one another, are considered. The particles are symmetrically dispersed about the Preisach measurement axis, and all magnetic quantities of interest are two-dimensional within these planes. Characteristic switching of particles by the Stoner-Wohlfarth coherent rotation and by more general incoherent modes is considered