Abstract
Unusual magnetic properties of nanocrystalline orthoferrite, GdFeO3 , synthesize by conventional solid state reaction (SSR) route based on stoichiometric mixing of Fe2O3 and Gd2O3 is reported here. The structural characterization of these nanoparticles was carried out by using X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM) techniques. We observe that the GdFeO3 phase start to precipitate at 1173 K which is rather lower for a SSR route. XRD and HRTEM studies confirm the growth of highly crystalline single phase GdFeO3 nanoparticles. Magnetic behavior shows the coexistence of weak ferromagnetism along with antiferromagnetic interaction. The field dependence magnetization delineates hysteresis loop at room temperature which is better at lower temperature.
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