Modified Brillouin function to explain the ferromagnetic behavior of surfactant-aided synthesized α-Fe2O3 nanostructures
محورهای موضوعی : Journal of Theoretical and Applied Physics
Zahra Alborzi Avanaki
1
(Department of Physics, Faculty of Science, Urmia University)
Ali Hassanzadeh
2
(Department of Chemistry, Faculty of Science, Urmia University;Nanotechnology Research Center, Urmia University)
کلید واژه: α, FeO nanoparticles, Ferromagnetic, Akulov law, Modified Brillouin function,
چکیده مقاله :
AbstractThe α-Fe2O3 nanoparticles have been synthesized using some surfactants in micro-emulsion method. Magnetization, M (H), of samples was measured at room temperature. Magnetic hysteresis loops were observed in all samples. A new magnetization function (H - A model) was offered to explain the field dependence of the magnetization behavior of α-Fe2O3. In this work, the magnetization curve of all samples was analyzed based on MBrillouin, MBrillouin-Akulov, and MBrillouin-(H - A) model. The experimental data have fitted with the MBrillouin-(H - A) model, and the best fitting parameters were analyzed.
