Mf. Hansen et S. Morup, MODELS FOR THE DYNAMICS OF INTERACTING MAGNETIC NANOPARTICLES, Journal of magnetism and magnetic materials, 184(3), 1998, pp. 262-274
A critical review of models for the dynamics of interacting magnetic n
anoparticles is given. It is shown that the basic assumptions in the D
ormann-Bessais-Fiorani model are unrealistic. The experimental observa
tions on systems of interacting magnetic nanoparticles can, at least q
ualitatively, be explained by the model derived by Morup and Tronc for
weakly interacting particles, in combination with a transition to an
ordered state in the case of strong interactions. (C) 1998 Elsevier Sc
ience B.V. All rights reserved.