Enhanced magnetoelectric sensitivity in Co0.7Zn0.3Fe2O4–Bi0.9La0.1FeO3 nanocomposites

Abstract We report the magnetoelectric, dielectric and magnetic properties of x Co 0.7 Zn 0.3 Fe 2 O 4 –(1 − x )Bi 0.9 La 0.1 FeO 3 ( x = 0.1, 0.2, 0.3 and 0.4) nanocomposites prepared by sol–gel method. The X-ray diffraction patterns of sintered pellets show the formation of composite phases. The average crystallite size obtain by Williamson–Hall plot for different nanocomposites were found to be in the range 70–80 nm, which are in agreement with particle size calculated from atomic force microscopy. Magnetoelectric voltage coefficient ( α E = 315 mV/cm Oe) and the magnetocapacitance (MC = 3.1%) for x = 0.3 were found to be higher than other synthesized nanocomposites.