Complex permeability of permalloy-ferrite hybrid composite materials

Relative complex permeability spectra have been investigated in the hybrid composite materials containing Ni-Zn ferrite and permalloy particles. Frequency dispersion of permeability of hybrid composite materials cannot be realized by the superposition of the magnetic susceptibility of each single particle composites. Furthermore, the pronounced enhancement of the permeability value was observed in the hybrid composite materials compared to that in the single particle composite having almost the same magnetic particle content. (C) 2003 Elsevier B.V. All rights reserved.