<p>Samples of zinc–tellurite glasses, activated by magnetite and barium titanate nanoparticles, were synthesized by the melt quenching technique. Functional properties of the glasses were experimentally investigated by the methods of XRD analysis, optical and polarization spectroscopy, and SQUID magnetometry. The XRD data confirmed the amorphous structure of the glasses. The bandgap values of the samples were obtained based on the optical spectroscopy data. The study of electric and magnetic field dependencies of electric polarization and specific magnetization established the evolutionary development of the shape of electric and magnetic hysteresis loops depending on the composition of glasses due to the interaction of charged γ-Fe₂O₃ clusters and barium titanate nanoparticles.</p>