Electrical and magnetic properties of (SbLi)1/2(Fe2/3Mo1/3)O3 multiferroic material

Synthesis and characterization of lithium and molybdenum modified antimony ferrite (SbLi)1/2(Fe2/3Mo1/3)O3 were carried out using solid-state reaction techniques. The preparation conditions and mass loss of the homogeneous mixture of required ingredients were decided based on thermal analysis (TGA). The formation of single-phase compound was confirmed by preliminary structural analysis using X-ray diffraction data. Electric properties of the material were studied in a wide temperature range (30-500 °C) at different frequencies (100 Hz-1 MHz) using impedance spectroscopy technique. The dc conductivity was found to obey Arrhenius relation suggesting the material to be of NTCR type. The activation energy calculated from the dc conductivity curve for grain and grain boundary effect is 0.60 and 0.47 eV respectively. The Jonscher's universal power law governs the nature of ac conductivity of the material. Remnant polarization was found to be 0.86 (μC/cm2). The magnetic measurements revealed weak remnant magnetization (0.01516 emu/g).