Dielectric relaxation in dielectric mixtures: Using mixture rules and modeling with a relaxation model function

Dielectric response of ideal systems is studied to investigate the broadening of dielectric relaxation at high filler contents. The studies are conducted at different concentrations; below and above the percolation threshold. The considered relaxation equations are Maxwell-Garnett, Bruggeman symmetric and non-symmetric, coherent potential approximation, generalized-Wiener, logarithmic mixing rule, Landau-Lifshitz-Looyenga and a recent expression proposed by the author. Generated data are later analyzed with a dielectric relaxation model function known as the Havriliak-Negami empirical expression.