Magnetic and Electrical Properties of Low La-doped NiCuZnFe Nanocrystalline Ferrite Films

被引：0

作者：

Yang Hangfu ^{[1
]}

Zhang Pengyue ^{[1
]}

Wu Qiong ^{[1
]}

Cui Yujian ^{[1
]}

Tang Peisong ^{[2
]}

Ge Hongliang ^{[1
]}

机构：

[1] China Jiliang Univ, Hangzhou 310018, Zhejiang, Peoples R China

[2] Huzhou Teachers Coll, Huzhou 313000, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷

关键词：

ferrite; sol-gel method; permeability; AUTO-COMBUSTION METHOD; ZINC FERRITE; ZN FERRITE; THIN-FILMS; SOL-GEL; SUBSTITUTION; NANOPARTICLES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Owing to the high-electrical resistivity and low loss, NiZn ferrites have been one of the most widely used soft magnetic materials for high-frequency applications. The low La-doped Ni0.5Zn0.4Cu0.1Fe2-xLaO3 (x= 0 similar to 0.05) nanocrystalline ferrite films were synthesized through nitrate-citrate sol-gel method. The influence of La3+ content on the nanocrystalline microstructure, magnetic and electrical properties of these ferrite films were studied by X-ray diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Precision Impedance Analyzer, respectively. The results show that with the increase of La3+ content, saturation magnetization M-s and coercivity H-c of the ferrites decrease gradually. Furthermore, the frequency dependence of the real part of permeability (mu), useable frequency as a function of the La3+ content of the toroidal specimens was investigated. For the La-doped samples, owing to magnetic dilution and impurity phases, the real part of permeability mu' of the toroidal specimens increased firstly, followed by decreasing.

引用

页码：515 / 518

页数：4

共 21 条

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