Multifunctional Properties of Biphasic DyFeO3 Perovskite/Dy3Fe5O12 Garnet Rare Earth Orthoferrite

Rare-earth orthoferrites are a group of compounds which exhibit improved magnetic, optical, and electrical characteristics throughout a wide range of temperatures. In present work, dysprosium based orthoferrite compound containing double phase of DyFeO3 perovskite/ Dy3Fe5O12 garnet was synthesized via co-precipitation technique. A mixed phase of orthoferrite, DyFeO3 perovskite and Dy3Fe5O12 garnet has been obtained. The X-ray diffraction (XRD) was carried out to explore the structural arrangements of atoms in the prepared material and clearly demonstrated the presence of both cubic phase of Dy3Fe5O12 (bcc) and orthorhombic phase of DyFeO3 in the powder sample. The nanoparticles surface morphological behaviour is explored with field emission scanning electron microscope (FE-SEM), which shows nearly spherical shape particles with little agglomeration. Using the UV-visible absorbance, band gap of the prepared sample was evaluated as 2.06 eV from Tauc plot. The magnetization behaviour was observed using a vibrating sample magnetometer (VSM), which revealed the Langevin component (ferromagnetic) at low field and as linear component (antiferromagnetic) at high field. The electric polarization (P-E loop) studies also revealed the typical induced ferroelectric behaviour.