Abstract
The present work shines light on magnetic properties of zirconium-implemented ZnO nanoparticles. X-ray diffraction patterns indicate that all as prepared samples including the highest Zr (5 mol %) in the crystal lattice of ZnO have a pure phase with hexagonal wurtzite structure. Magnetization measurements on the same system reveal a ferromagnetic to paramagnetic transition temperature ≤300 K with a low-temperature transition. Hysteresis is clearly observed in magnetization versus field (M-H) curves at low temperature for all studied nanoparticles. The magnetization (M) and coercivity (Hc) value obtained for undoped ZnO and the Zr doped ZnO nanoparticles show significant changes in M–H loop on increasing Zr concentration. The M-T measurement analysis exhibited the undoped ZnO shown here maximum magnetization value. Both undoped and Zr doped ZnO nanoparticles exhibit a Curie transition temperature (Tc).
•ZnO nanoparticles exhibited room temperature ferromagnetic (RTFM).•TEM image shows the nanoparticles are in spherical in shape.•Arrott's plot shows the studied samples are ferromagnetic in nature.•Value of saturation magnetization (Ms) increases with the increase of Zr content in ZnO.•X-ray diffraction pattern shown the prepared samples are in single phase with wurtzite structure.