Modulation of magnetoelectric effect of Pb(Zr, Ti)O₃-film-on-CoFe₂O₄ ceramic composites by LaNiO₃ interface layer

In the ferroelectric-film/magnetic-ceramic magnetoelectric composites, the conductivity of the magnetic ceramics is an important factor in the charge collection of the electric-related properties and the resultant characterization of the magnetoelectric effect. This paper was to investigate the improvement of charge collection when the metallic-oxide LaNiO₃ interface layer was introduced via the chemical solution deposition into the Pb(Zr, Ti)O₃-film/CoFe₂O₄-ceramic composites. The optimum magnetoelectric coefficient is 58 mV/(cm·Oe). The ferroelectric and piezoelectric properties can be enhanced due to the introduction of LaNiO₃ interface layer. The further modulation of the magnetoelectric coupling effect is expected by the optimization of the LaNiO₃ interface layer.