In this study, the pure manganese ferrite nanoparticles and those dispersed in silica were prepared by the sol-gel method. The average size of particles, which is estimated from Scherrer formula, is about 6 nm for pure sample and 5 nm for silica dispersed sample. The particles size values are in agreement with the TEM results. Results of magnetization measurements showed that these samples have zero coercivity and are superparamagnet at room temperature. Using the results of ac magnetic susceptibility measurements and analysis by different models, superparamagnetic behavior of magnetic nanoparticles was studied. The behavior of pure sample is interacting superparamagnet and in the silica dispersed sample, the interaction between nanoparticles decreases and the behavior of this sample is non-interacting superparamagnet. It seems that by dispersing the nanoparticles in silica, the distance of particles increases and interaction between ferrite nanoparticles decreases.
Aalaye,S. , Kameli,P. , Salamati,H. and Arabi,H. (2019). Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix. Iranian Journal of Physics Research, 12(4), 361-369.
MLA
Aalaye,S. , , Kameli,P. , , Salamati,H. , and Arabi,H. . "Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix", Iranian Journal of Physics Research, 12, 4, 2019, 361-369.
HARVARD
Aalaye S., Kameli P., Salamati H., Arabi H. (2019). 'Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix', Iranian Journal of Physics Research, 12(4), pp. 361-369.
CHICAGO
S. Aalaye, P. Kameli, H. Salamati and H. Arabi, "Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix," Iranian Journal of Physics Research, 12 4 (2019): 361-369,
VANCOUVER
Aalaye S., Kameli P., Salamati H., Arabi H. Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2019; 12(4): 361-369.
