Structural and electrical properties of y(Ni0.7Co0.2Cd0.1Fe2O4) + (1-y)Ba0.9Sr0.1TiO3 magnetoelectric composite

Abstract

Magnetoelectric (ME) composites of ferrite and ferroelectric phase with y(Ni_0.7Co_0.2Cd_0.1Fe₂O₄) + (1-y)Ba_0.9Sr_0.1TiO₃ with y=0.15, 0.30 and 0.45, respectively were prepared by standard double sintering ceramic method. The constituent phases, i.e., ferrite and ferroelectric phase presence were confirmed by X-ray diffraction pattern. Scanning electron micrographs were studied to understand microstructure of the prepared samples. The dielectric constant (έ) and loss tangent (tanδ) were measured as a function of frequency and also function of temperature at the fixed frequencies 1, 10, 100 kHz and 1 MHz. The AC conductivity was studied to understand conduction mechanism.