Ferroelectric and magnetic properties of the PMN-PT-nickel zinc ferrite multiferroic ceramic composite materials

Multiferroic ceramic composites based on PMN-PT and Ni-Zn ferrite have been obtained and described in presented work. PMN-PT powders were synthesized by sol-gel method while nickel-zinc ferrite was obtained by classical ceramic method. Two compositions of PMN-PT were used i.e., 0.72PbMg1/3Nb2/3O3-0.28PbTiO3 with rhombohedral symmetry and 0.63PbMg1/3Nb2/3O3-0.37PbTiO3 with tetragonal one. In both cases the classical methods of calcination and final pressureless densification were used for obtaining of final ceramic composites. XRD, microstructure, EDS, dielectric, electrical and magnetic studies were performed for the obtained ceramic composite materials which confirmed ferroelectric and ferrimagnetic properties at room temperature.