The effect of Ti substitution on magnetoelectric coupling at room temperature in the BiFe1−xTixO3system

Magnetoelectric compounds BiFe 1− x Ti x O 3 ( x = 0.1, 0.2 and 0.3) have been synthesized by the conventional solid state reaction method and the effect of Ti substitution on the ferroelectric and magnetic properties studied. It is seen that Ti substitution does not affect the ferroelectric transition temperature ( T c ) of the BiFe 1− x Ti x O 3 system. An anomaly in the dielectric constant and dielectric loss in the vicinity of the antiferromagnetic Néel temperature ( T N ) and a small enhancement in magnetization have been observed. No systematic variation in the antiferromagnetic Néel temperatures has been observed on Ti substitution. Furthermore, it is seen that this system shows coupling between electric and magnetic dipoles exhibiting a magnetoelectric effect at room temperature and possesses a high dielectric constant.