Magnetic and microwave absorption properties of Ni_(1-x)Zn_xFe_2O_4 nanocrystalline synthesized by sol-gel method

作     者：ZHANG Min LIU QiangChun ZI ZhenFa DAI YuQiang ZHU XueBin SUN YuPing DAI JianMing 

作者机构：Key Laboratory of Materials PhysicsInstitute of Solid State PhysicsChinese Academy of Sciences School of Physics and Electronics InformationHuaibei Normal University 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2013年第56卷第1期

页      面：13-19页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.10874051,51002156,and 11104098) the Natural Science Major Foundation of Anhui Provincial Higher Education Institutions of China (Grant No. KJ2012ZD14) 

主　　题：Ni-Zn ferrite magnetic measurement microwave absorption properties 

摘      要：Ni1-xZnxFe2O4(0≤x≤1,in steps of 0.1) nanocrystallines were synthesized by sol-gel *** doping effects of zinc on structural,magnetic and microwave absorption properties were investigated in detail.X-ray diffraction(XRD) results show that all the samples are single-phase spinel *** magnetic and microwave absorption properties are strongly dependent on the zinc content,which can be understood in terms of the cations redistribution in spinel tetrahedral and octahedral sites with the increase of zinc *** magnetic measurement shows the antiferromagnetic nature of the samples for x=0.9 and x=*** saturation magnetization reaches the maximum of 3.35μB/*** x=*** optimal reflection loss(RL) of-29.6 dB is found at 6.5 GHz for an absorber thickness of 5 *** RL values exceeding 10 dB are obtained for the absorber in the range of 3.9-8.9 *** Ni1-xZnxFe2O4 nanocrystallines may be attractive candidates for electromagnetic wave absorption materials.