Improved magnetodielectric coefficient on polymer based composites through enhanced indirect magnetoelectric coupling
Flexible particulate composites with general formula [xCoFe2O4](1 x) (Polyvinylidene fluoride) were prepared for x 0, 3, 11, and 20 wt. The dielectric constant, dielectric loss, and saturation magnetization of the composites increase with the increasing CoFe2O4 content, being 13, 0.13, and 13 emu g 1, respectively, for x 20. The change in the dielectric response (magnetodielectric effect is the highest among all the reported polymer based composites for the x 20 sample (4.2% and on the contrary, the highest value of the magnetodielectric coefficient (g) is higher on the x 3 sample (0.015 emu 2 g2) Such features have large application potential in areas such as filters, magnetic field sensors and actuators, among others.