Measurements of complex dielectric permittivity and magnetic permeability of carbon-coated Ni capsules

With advance of multiferroic composites it becomes increasingly interesting to measure both complex dielectric permittivity and magnetic permeability simultaneously and preferably at high frequencies. In this work both of these parameters in case of carbon-coated nickel nanocapsules (Ni@C) embedded into organic matrix were measured in a waveguide set-up in 26 - 36 GHz frequency range.