Abstract
Ba0.5Bi0.5Ti0.5Fe0.5Mn0.1O3, a Fe-based Mn-modified BFO-BT ceramic, is processed by solid-state reaction route, calcined at 950 °C temperature. Formation of single-phase orthorhombic structure is observed from room temperature XRD analysis. Dielectric behavior is investigated over a broad range of temperature (30 °C–500 °C) and frequency (0.1 kHz–10 MHz). Broadening of transition temperature is noticed at 460 °C, where the material undergoes a change from ferro- to paraelectric state. From dielectric plots the effect of Mn on capacitive behavior of the material is studied. The conductivity study exhibits negative temperature coefficient of resistance (NTCR) behavior showing semiconducting behavior of the material.
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