Характерные времена релаксации кластера взаимодействующих магнитных анизотропных наночастиц

Abstract

In the present work the characteristic relaxation times of the individual clus-ter from the ensemble of ferro-particles are investigated theoretically. The dipole-dipole in-teraction is taken into account using the modified mean field theory. It is assumed that the magnetic moment of the ferroparticles is described by the Neel mechanism. Two cases of the mutual orientation of the external magnetic field and the easy magnetization axis are consid-ered and analytical dependences are obtained.