Sol-gel derived nanoparticles of Zn substituted lithium ferrite (Li0.32Zn0.36Fe2.32O4): magnetic and Mössbauer effect measurements and their theoretical analysis

► Nanoparticles of Li0.32Zn0.36Fe2.32O4 were prepared by sol-gel method. ► Average particle sizes of different annealed samples are in the range of 10-21 nm. ► The maximum magnetization of the sample annealed at 500 °C is quite high. ► The presence of superparamagnetic relaxations of nanoparticles was investigated. ► Observed data were successfully analyzed.