Electrophoretic deposition of BaTiO3/CoFe2O4 multiferroic composite films

► Electrophoretic deposition (EPD) method was introduced to fabricate bilayer BTO/CFO composite films. ► The percolation threshold of composite films was improved through dispersing ferromagnetic phase into ferroelectric phase. ► The ferroelectric properties of composite thick films were maintained when the ferromagnetic properties were enhanced significantly with increasing CFO content. ► The fabricated films showed evident multiferroic properties.