中国物理B ›› 2022, Vol. 31 ›› Issue (4): 47502-047502.doi: 10.1088/1674-1056/ac3399
Enhancement of magnetic and dielectric properties of low temperature sintered NiCuZn ferrite by Bi2O3-CuO additives
Jie Li(李颉)1,†, Bing Lu(卢冰)1, Ying Zhang(张颖)1, Jian Wu(武剑)1, Yan Yang(杨燕)1,2, Xue-Ning Han(韩雪宁)1, Dan-Dan Wen(文丹丹)3, Zheng Liang(梁峥)1, and Huai-Wu Zhang(张怀武)1
- 1 State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;
2 College of Communication Engineering, Chengdu University of Information Technology, Chengdu 610225, China;
3 Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
Enhancement of magnetic and dielectric properties of low temperature sintered NiCuZn ferrite by Bi2O3-CuO additives
Jie Li(李颉)1,†, Bing Lu(卢冰)1, Ying Zhang(张颖)1, Jian Wu(武剑)1, Yan Yang(杨燕)1,2, Xue-Ning Han(韩雪宁)1, Dan-Dan Wen(文丹丹)3, Zheng Liang(梁峥)1, and Huai-Wu Zhang(张怀武)1
- 1 State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;
2 College of Communication Engineering, Chengdu University of Information Technology, Chengdu 610225, China;
3 Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem, Chongqing University of Post and Telecommunications, Chongqing 400065, China
摘要： With a series of 1.0 wt%Bi$_{2}$O$_{3}$-$x$ wt% CuO ($x =0.0$, 0.2, 0.4, 0.6, and 0.8) serving as sintering additives, Ni$_{0.23}$Cu$_{0.32}$Zn$_{0.45}$Fe$_{2}$O$_{4}$ ferrites are successfully synthesized at a low temperature (900 $^\circ$C) by using the solid state reaction method. The effects of the additives on the phase formation, magnetic and dielectric properties as well as the structural and gyromagnetic properties are investigated. The x-ray diffraction (XRD) results indicate that the added Bi$_{2}$O$_{3}$-CuO can lower the synthesis temperature significantly without the appearing of the second phase. The scanning electron microscope (SEM) images confirm that Bi$_{2}$O$_{3}$ is an important factor that determines the sintering behaviors, while CuO affects the grain size and densification. With CuO content $x=0.4$ or 0.6, the sample shows high saturation magnetization, low coercivity, high real part of magnetic permeability, dielectric permittivity, and small ferromagnetic resonance linewidth ($\Delta H$). The NiCuZn ferrites are a promising new generation of high-performance microwave devices, such as phase shifters and isolators.
中图分类号: (Ferrimagnetics)
- 75.50.Gg