LAUSR

Several multiferroic AMnO3 (A = Gd, Tb, Dy) particles were synthesized by microwave-assisted acrylamide gel route. The influence of A-site cation on the phase purity, surface morphologies, and optical and magnetic properties of the as-prepared multiferroic AMnO3 (A = Gd, Tb, Dy) particles was investigated. X-ray diffraction pattern, Fourier transform infrared spectroscopy, and Raman spectroscopy confirm the pure phase of the AMnO3 (A = Gd, Tb, Dy) particles exhibits an orthorhombic perovskite structure. Scanning electron microscopy (SEM) observation indicates that the surface morphology of AMnO3 (A = Gd, Tb, Dy) particles is significantly dependent on the A-site cation. The particle size of AMnO3 (A = Gd, Tb, Dy) particles increases with the increasing atomic number of A-site cation The optical band gap values of AMnO3 (A = Gd, Tb, Dy) particles decrease with an increase in the atomic number of A-site cation. Magnetization measurements show that these AMnO3 (A = Gd, Tb, Dy) particles exhibit magnetic ordering at low temperatures.