Investigation on structural, electrical and magnetic properties of ErFeO3: Sintered at different temperature

Abstract

This investigation reports the effect, on structural, electrical, and magnetic properties of ErFeO3 orthoferrites, sintered at different temperatures: 800 °C, 1000 °C, and 1200 °C. XRD analysis confirms that all the samples exhibit a single-phase orthorhombic structure. Raman studies indicate no significant variation in the observed Raman modes with increasing sintering temperature, suggesting that, the absence of crystal symmetry changes. Field-FESEM images reveal that the porosity of the samples is influenced by the shape of the grains present within them. Specifically, the sample sintered at 1000 °C exhibits higher porosity, resulting in higher leakage current density (J-E) compared to the other samples. The dielectric and magnetization parameters show an increase for the samples sintered at 1000 °C, while a decrease is observed for the samples sintered at 1200 °C. These variations are attributed to the bond length and bond angle variation of the Fe–O in the studied samples. Overall, this investigation aims, to establish a relationship between the physical properties and microstructural parameters, provide valuable insights into the magnetic interactions present in the samples and the comprehensive behavior of ErFeO3 orthoferrites samples sintered at different sintering temperatures will be discussed in this paper.