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首页> 外文期刊>Physica, B. Condensed Matter >Investigation on the structural, magnetic, dielectric and impedance analysis of Mg0.3-xBaxCu0.2Zn0.5Fe2O4 nanoparticles
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Investigation on the structural, magnetic, dielectric and impedance analysis of Mg0.3-xBaxCu0.2Zn0.5Fe2O4 nanoparticles

机译：Mg0.3-XbaxCu0.2Zn0.5Fe2O4纳米粒子结构，磁，电介质和阻抗分析的研究

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摘要

An exhaustive study of the structural, magnetic, and impedance analysis on Mg0.3-xBaxCu0.2Zn0.5Fe2O4 (x = 0.00-0.30, in steps of 0.05) ferrites were performed. The crystallographic structure was studied by X-ray diffraction experiments and Rietveld refinement revealed that all samples crystallize in a cubic spinel structure with the Fd (3) over barm space group. The non-monotonic behavior of the saturation magnetization can be explained according to Neel's model and the variation of the lattice parameter. An improvement in dielectric properties has also observed in the Ba-substituted Mg-Cu-Zn ferrite so that sample x = 0.05 has the best structural, magnetic and dielectric properties. The obtained results demonstrate that the conduction in the Ba-substituted Mg-Cu-Zn ferrite is due to the short-range translation hopping assisted by a small polaron hopping mechanism.
机译：进行了Mg0.3-XbaxCu0.2Zn0.5Fe2O4（x = 0.00-0.30的结构，磁性和阻抗分析的详尽研究，进行了铁氧体。 通过X射线衍射实验研究了晶体结构，并征求化细化显示所有样品在立方尖晶石结构中结晶，用FD（3）通过BARM空间组。 饱和磁化的非单调行为可以根据Neel的模型和晶格参数的变化来解释。 在BA取代的Mg-Cu-Zn铁素体中也观察到介电性质的改善，使得样品X = 0.05具有最佳的结构，磁性和介电性能。 所得结果表明，BA取代的Mg-Cu-Zn铁素体中的传导是由于小极化子跳跃机构辅助的短距离转换。

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