Abstract
The effect of the annealing temperature on the structural and magnetic properties of Mn0.15Mg0.15Cu0.2Zn0.5Fe2O4 ferrite nanoparticles was investigated. All samples were carefully characterized using different techniques. The structural results showed that the ferrite was annealed at temperatures above 750 °C, and its structure was a combination of cubic spinel and hematite phases. Moreover, the XPS analysis showed that the valence state of the surface-metal ions and the surface-oxygen species played an important role in the structural and magnetic changes of this ferrite, so the increase in the hematite phase with the annealing temperature can be explained by the evaporation of the zinc content and the formation of a magnesium-metal state. The imaginary susceptibility as a function of the temperature of the samples shows a broad peak at high temperatures related to the blocking temperature of the interacting superparamagnetic nanoparticles and a second sharp peak related to the insulating spin-glass temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
