Abstract
Recently, research to examine the effect of coupling between ferroelectricity and ferromagnetism is just started for materials with both ferroelectric and ferromagnetic properties such as (Pb,La)(Zr,Ti)O3-BiFeO3, Bi6Ti3Fe2O18 and YMnO3. We are expecting to induce the coupling phenomenon by "orthogonalization" of spontaneous polarization and magnetization. On the basis of this concept, we prepared BaTiO3/(Ni,Zn)Fe2O4 epitaxial films in which spontaneous polarization and magnetization is orthogonalized. We also prepared BaTiO3/BaFe12O19 epitaxial films in which spontaneous polarization and magnetization is in parallel. To clarify the effect of "orthogonalization", electrical and magnetic properties were measured.
