Effective conductivity and magnetic permeability of nanostructured media in magnetic field

The problem of homogenization of the nanostructured materials placed in DC magnetic field has been discussed. The experimental data are obtained for the several classes of nanostructured materials: metallic superlattices, metal-dielectric thin films and 3D-nanostructured metamaterials. All these materials contain ferro- or ferrimagnetic component. The transmission and reflection coefficients were measured on the waves of millimeter waveband. It has been shown that the experimental frequency spectra of the coefficients in zero magnetic field can be described by the effective conductivity and dielectric permittivity. The spectra of ferromagnetic resonance, however, cannot be calculated correctly with the averaged magnetization.