[19p-P10-1~8] 9.5 New functional materials and new phenomena

[19p-P10-8] Magnetic-induced resistance in multiferroic 0.7BaTiO₃-0.3NiFe₂O₄ core-shell

〇Osami Yanagisawa¹, Takashi Fujimoto² (1.Mari. Tech., Depa., Nati. Inst. of Tech., Yuge Coll., 2.Elec. Mech. Engi. Depa., Nati. Inst. of Tech., Yuge Coll.)

Keywords:multiferroic,core-shell

Core-shell structure of 0.7BaTiO₃-0.3NiFe₂O₄ was synthesis by chemical method and characterized by XRD for crystal structure, by SEM for surface architecture, by EDS for chemical composition. Temperature dependence of resistance show a dramatic increase with external magnetic field 280 mT around 170 K. This phenomenon is reversible without magnetic field. BaTiO₃ and NiFe₂O₄ do not show this phenomenon. We conclude this phenomenon comes from the multiferroic effect.