Characterization of crystal structure and magnetic properties of Zn_(1-x)Mn_xO (x = 0.086 and 0.090) nanoparticles synthesis results using coprecipitation method

Zn_(1-x)Mn_xO (x = 0.086 and 0.090) nanoparticles have been successfully synthesized. This research aims to make Zn_(1-x)Mn_xO nanoparticles and observe the effect of Mn²⁺ doping ion concentration in ZnO material by coprecipitation method, which is then followed by heat treatment at 350 °C for 3 h. Zn_(1-x)Mn_xO nanoparticles produced were then characterized using XRD, SEM, VSM and FTIR equipment. XRD data were generated using the Rietveld program. The XRD refinement results show that the substitution of Mn²⁺ ions into ZnO can change the behavior of the lattice parameters and atomic density. The shape and particle size of Zn_(1-x)Mn_xO nanoparticle samples change with the addition of Mn²⁺ ion doping. Likewise, there is a change in magnetic properties such as magnetic remanent (M_r) of Zn_(1-x)Mn_xO nanoparticles as a result of substitution with the addition of Mn²⁺ ions.