Magnetic properties of Sn-substituted Ni-Zn ferrites synthesized from nano-sized powders of NiO, ZnO, Fe_2O_3, and SnO_2

查看全文 作　　者：M A [1]Ali;M M [1]Uddin;M N I [2]Khan;F U Z [1]Chowdhury;S M [2]Hoque;S I [2]Liba

机构地区：[1]Department of Physics, Chittagong University of Engineering and Technology (CUET);[2]Materials Science Division, Atomic Energy Center

出　　处：《Chinese Physics B》索引2017年第26卷第7期,共6页

基　　金：the Directorate of Research and Extension, Chittagong University of Engineering and Technology (CUET), Chittagong-4349, Bangladesh under grant number CUET/DRE/201415/PHY/002 摘　　要：A series of Ni_(0.6-x/2)Zn_(0.4-x/2)Sn_xFe_2O_4(x = 0.0, 0.05, 0.1, 0.15, 0.2, and 0.3)(NZSFO) ferrite composities have been synthesized from nano powders using a standard solid state reaction technique. The spinel cubic structure of the investigated samples has been confirmed by x-ray diffraction(XRD). The magnetic properties such as saturation magnetization(M_s),remanent magnetization(M_r), coercive field(H_c), and Bohr magneton(μ) are calculated from the hysteresis loops. The value of M_s is found to decrease with increasing Sn content in the samples. This change is successfully explained by the variation of A-B interaction strength due to Sn substitution in different sites. The compositional stability and quality of the prepared ferrite composites have also been endorsed by the fairly constant initial permeability(μ') over a wide range of frequency. The decreasing trend of μ' with increasing Sn content has been observed. Curie temperature TChas been found to increase with the increase in Sn content. A wide spread frequency utility zone indicates that the NZSFO can be considered as a good candidate for use in broadband pulse transformers and wide band read-write heads for video recording. The composition of x = 0.05 shows unusual results and the possible reason is also mentioned with the established formalism. 关键词：粉体合成纳米粉体铁氧体锡含量 NIO 宽带脉冲变压器氧化锌磁性

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Magnetic properties of Sn-substituted Ni-Zn ferrites synthesized from nano-sized powders of NiO, ZnO, Fe_2O_3, and SnO_2

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