Magnetic Properties of Barium Titanate – Barium Ferrite Composites

Abstract

Composite materials containing bothferroelectric and ferromagnetic phases from Barium Titanate (BaTiO₃) and Barium Ferrite (BaFe₁₂O₁₉) have been studied. The coexistence of magnetic hysteresis in the composite material has been observed in the
temperature range 90-300K. It is found that both remnant magnetization M_r and the saturation magnetization M_S decrease with increasing the temperature and they increase with decreasing the concentration of BaTiO₃in the system. The coercive field H_C increases
almost linearly with increasingthe temperature and with increasing the concentration of BaTiO₃in the system.

Keywords: Ferroelectric materials; Ferromagnetic materials; Magnetic hysteresis; Barium titanate; Barium ferrite.