Preparation and electromagnetic properties of Polyaniline(polypyrrole)-BaFe12O19/Ni0.8Zn0.2Fe2O4 ferrite nanocomposites

► Synthesizing the polyaniline(PANI)/polypyrrole(PPy)-BaFe12O19/Ni0.8Zn0.2Fe2O4 composites by in situ polymerization. ► With excellent thermal stability and electromagnetic properties. ► Electrical conductivity and magnetic properties changed with the content of PANI (PPy). ► Potential applications in magnetic recording media and microwave materials.