Study of Various Site Interactions Using Maximum Entropy Method on Mechanically Alloyed Ni_0.5Zn_0.5Fe₂ O ₄ Nanoferrite Particles Sintered from 1100 to 1400 ^∘C

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• 作者：R. Saravanan ; Y. B. Kannan ; N. Srinivasan…
• 关键词：Mechanical alloying ; Sintering temperature ; Spinel ferrites ; XRD ; MEM ; Optical and magnetic properties
• 刊名：Journal of Superconductivity and Novel Magnetism
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：30
• 期：2
• 页码：407-419
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Strongly Correlated Systems, Superconductivity; Magnetism, Magnetic Materials; Condensed Matter Physics; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1557-1947
• 卷排序：30

文摘

In this article, numerical values of the bond strength between tetrahedral-tetrahedral, octahedral-octahedral, and tetrahedral-octahedral site interactions in ferrites are evaluated by using maximum entropy method (MEM) and compared with that of existing theoretical predictions for the Ni_0.5Zn_0.5Fe₂O₄ nanoferrite particles prepared by mechanical alloying via high-energy ball milling and sintered at different temperatures from 1100 to 1400 ∘C. Interestingly, octahedral-octahedral site interactions are found to have the weakest interaction in all the samples. The structural parameters of the prepared sample have been studied by employing the Rietveld refinement method, using JANA 2006 software. The magnetic properties and the optical band gap energy of the samples are determined using vibrating sample magnetometer and UV-VIS technique respectively.