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Magnetic, dielectric and structural properties of spinel ferrites synthesized by sol-gel method
Journal of Materials Research and Technology ( IF 6.4 ) Pub Date : 2020-12-29 , DOI: 10.1016/j.jmrt.2020.12.064
Abdul Hakeem , Thamraa Alshahrani , Ghulam Muhammad , M.H. Alhossainy , A. Laref , Abdul Rauf Khan , Irshad Ali , Hafiz Muhammad Tahir Farid , T. Ghrib , Syeda Rabia Ejaz , Rabia Yasmin Khosa

Sol-gel procedure was taken into consideration to produce ferrite series with chemical formula MnYbyFe2-yO4 with y = 0.00 to 0.10 (step = 0.025). Structural, electrical and magnetic aspects of ytterbium (Yb) switched Mn-ferrites were the main focus. Every sample exhibited cubic phase spinel assembly. Exchange of ytterbium with iron in the system produced enlargement in coercivity while abridgment in remanence and saturation magnetization. Involvement of Yb ion in the ferrite assembly led to reduction of both real and imaginary constituents of permittivity. The ytterbium introduction in the lattice enhanced the value of impedance. The examination of hysteresis loop was done under the range of -2K to +2KOe. Temperature dependent resistivity, activation energy and drift mobility were carried out by two probe method. The characterization outcomes recommended that the compounds are appropriate for microwave absorption usages.



中文翻译:

溶胶-凝胶法合成尖晶石铁氧体的磁性,介电和结构性能

考虑采用溶胶-凝胶法生产化学式为MnYb y Fe 2-y O 4的铁氧体系列y = 0.00至0.10(步长= 0.025)。switched(Yb)开关锰铁氧体的结构,电学和磁学方面是主要焦点。每个样品均显示立方相尖晶石组件。该体系中with与铁的交换产生了矫顽力的增大,而剩磁和饱和磁化强度的减小。Yb离子在铁氧体组件中的参与导致介电常数的实部和虚部均降低。将the引入晶格可增强阻抗值。磁滞回线的检查是在-2K至+ 2KOe的范围内进行的。温度依赖性电阻率,活化能和漂移迁移率通过两种探针法进行。表征结果建议该化合物适用于微波吸收用途。

更新日期:2021-01-19
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