The calcination temperature dependence of microstructural, vibrational spectra and magnetic properties of nanocrystalline Mn0.5Zn0.5Fe2O4

8th International Conference on Physics and its Applications

Indrayana, I.P.T.^1 ; Siregar, N.^1 ; Suharyadi, E.^1 ; Kato, T.^2 ; Iwata, S.^3

Department of Physics, Gadjah Mada University, Yogyakarta, Indonesia^1

Department of Electrical Engineering and Computer Science, Nagoya University, Japan^2

Institutes of Materials and Systems for Sustainability, Nagoya University, Japan^3

关键词: Calcination temperature;    Calcination treatment;    Coprecipitation method;    Cubic spinel structure;    Magnetic properties of nanoparticle;    Magnetization values;    Stretching vibrations;    Tetrahedral sites;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012021/pdf
DOI  :  10.1088/1742-6596/776/1/012021

来源: IOP

【 摘 要 】

Effect of calcination temperature on microstructural, vibrational, and magnetic properties of Mn0.5Zn0.5Fe2O4nanoparticles have been successfully investigated. The nanoparticles were synthesized via coprecipitation method and calcined at different temperatures varying from 400, 600, 800, and 1000°C. The X-ray diffraction (XRD) pattern confirmed the formation of cubic spinel structure Mn0.5Zn0.5Fe2O4with crystallite size ranging from 18.3 nm to 24.8 nm. The TEM micrograph showed the morphology of nanoparticles change from nearly spherical to cubic form after calcination. The FTIR spectra confirmed the existence of vibrations at 416.6 cm-1- 455.2 cm-1and 555.5 cm-1-578.6 cm-1which corresponds to the intrinsic stretching vibration of metal-oxygen at octahedral and tetrahedral sites, respectively. The maximum specific magnetization and coercivity increase with increasing calcination temperature. The maximum specific magnetization value of 54.7emu/gram was obtained for sample calcined at 1000°C. The results showed that calcination treatment will facilitate the tunability of microstructural and magnetic properties of nanoparticles for expanding the field of application.