Enhancement of magnetic and dielectric properties of low temperature sintered NiCuZn ferrite by Bi_(2)O_(3)-CuO additives  

作　　者：Jie Li Bing Lu Ying Zhang Jian Wu Yan Yang Xue-Ning Han Dan-Dan Wen Zheng Liang Huai-Wu Zhang 李劼;卢冰;张颖;武剑;杨燕;韩雪宁;文丹丹;梁峥;张怀武(State Key Laboratory of Electronic Thin Film and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China;College of Communication Engineering,Chengdu University of Information Technology,Chengdu 610225,China;Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem,Chongqing University of Post and Telecommunications,Chongqing 400065,China)

机构地区：[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

出　　处：《Chinese Physics B》2022年第4期660-666,共7页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2018YFE0115500);the National Natural Science Foundation of China(Grant Nos.52003256 and 51902037);the Natural Science Foundation of Shanxi Province,China(Grant No.201901D211259)。

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)Ee_(2)O_(4)ferrites are successfully synthesized at a low temperature(900℃)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(ΔH).The NiCuZn ferrites are a promising new generation of high-performance microwave devices,such as phase shifters and isolators.

关 键 词：NiCuZn ferrite Bi_(2)O_(3)-CuO additive magnetic properties dielectric properties ferromagnetic resonance(FMR)linewidth 

分 类 号：O469[理学—凝聚态物理] TM271[理学—电子物理学]