Investigation of Structural and Electrical Properties of Ternary System LCMO-CFO-BT

The prepared ternary system is a multiferroic material and suitable for energy storage devices. A ternary system “(1 - x) LCMO + x (0.7CFO-0.3BT)” (x = 0,0 .1 and 1) was prepared using LCMO (Lanthanum Calcium Manganite), CFO (Cobalt Ferrite), BT (Barium Titanate), synthesized using solid-state reaction method. Various characterizations were done to investigate the structural, and electrical properties of the synthesized materials. The X-ray diffraction study reveals the formation of ternary phase purity on adding 0.7CFO-0.3BT in LCMO and a structural transformation can be observed. The average crystallite size was calculated using Debye Scherrer's formula and observed that by adding the content of 0.7CFO-0.3BT in LCMO, the average crystalline size increased by a few nanometres in comparison to pure LCMO. FT-IR data for 0.9LCMO-0.1(0.7CFO-0.3BT) composite showed a slightly shift toward higher wavenumber and broadening of peak after the addition of 0.7CFO-0.3BT composite in LCMO. Variation in dielectric constant with the frequency of applied electric field of composite with 0.7CFO-0.3BT content added to LCMO apprise presence of non-Debye relaxation process. The impedance spectroscopy analysis indicated the dielectric relaxation to be of the poly-dispersive non-Debye type with dominant grain boundary contribution in the composite, Z′ and Z″ plot with frequency reveals frequency-dependent behavior of impedance for synthesized composites.