中国物理B ›› 2022, Vol. 31 ›› Issue (4): 47502-047502.doi: 10.1088/1674-1056/ac3399
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
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
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)