Microwave combustion synthesis of La 1-x Gd x FeO 3 (x=0 to 0.25) nanoparticles: structural, magnetic, vibrational, morphology, and optical behavior

Abstract

Abstract La1 − xGdxFeO3 (x = 0 to 0.25) nanoparticles are prepared by microwave combustion process (MCP) with L-alanine as a fuel. The synthesized samples are confirmed by different instrumental characterization for evaluating the nanostructured materials such as XRD, TEM, SAED, XPS, FE-SEM, EDX, FTIR, DRS-UV and VSManalysis.XRD and FT-IR are confirmed that lanthanum ferrite was orthorhombic structure with average crystallite size ranged ̴ 57.8 to 37.9 nm. The energy gap values were estimated using UV-vis spectra and it is in the range between 2.17 and 2.43 eV. The elements like Gd, La, Fe and O are present in EDX and XPS analysis. FE-SEM images reveal aggregated spherical morphology. VSM analysis are shows strong ferro magnetic behavior of La1−xGdxFeO3 nanoparticles. The Ms and Mr values are in the range between1.06 to 1.71and 1.94 to 6.53 emu/g for La1−xGdxFeO3 respectively.