Abstract
Europium-ferrite perovskite EuFeO3 was synthesized basing on standard solid state reaction technique. X-ray diffraction analysis revealed the formation of single phase identified to be crystallizing in a Pbnm orthorhombic structure. X-ray peak broadening was conducted to evaluate the crystallite size and lattice strain. Scanning electron microscopy images showed an agglomerated distribution of grain with an average size ranging between 0.47 and 1.11 µm. The presence iron ions in octahedral environment is highlighted Fourier transform infrared (FT-IR) spectroscopy. Dielectric study was performed as a function of both frequencies (1 kHz–1 MHz) and temperatures (298–300 K). The frequency dependence of dielectric properties revealed a quasi-dc process behavior in the material, typical of carrier dominated systems. Two dielectric anomalies were observed, corresponding to the conduction relaxation dominated by the migration of oxygen vacancies. All observed phenomena were pointed by differential scanning calorimetry (DSC) analysis. Optical absorption studies imply the existence of a direct band gap in the sample.
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