Microstructural,magnetic and dielectric performance of rare earth ion(Sm^(3+))-doped MgCd ferrites  

作　　者：Dandan Wen Xia Chen Dasen Luo Yi Lu Yixin Chen Renpu Li Wei Cui 文丹丹;陈霞;骆大森;卢毅;陈一鑫;黎人溥;崔巍(Doctoral Research Station of Chongqing Key Laboratory of Optoelectronic Information Sensing and Transmission Technology,Chongqing University of Post and Telecommunications,Chongqing 400065,China;State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China;Chongqing Key Laboratory of Autonomous Navigation and Microsystem,Chongqing University of Post and Telecommunications,Chongqing 400065,China)

机构地区：[1]Doctoral Research Station of Chongqing Key Laboratory of Optoelectronic Information Sensing and Transmission Technology,Chongqing University of Post and Telecommunications,Chongqing 400065,China [2]State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China [3]Chongqing Key Laboratory of Autonomous Navigation and Microsystem,Chongqing University of Post and Telecommunications,Chongqing 400065,China

出　　处：《Chinese Physics B》2022年第7期643-647,共5页中国物理B（英文版）

基　　金：the National Key Research and Development Program of China(Grant No.2018YFE0115500);the National Natural Science Foundation of China(Grant Nos.51902037 and 62005033);the Open Foundation of State Key Laboratory of Electronic Thin Films and Integrated Devices(Grant No.KFJJ201912);the Science and Technology Project Affiliated to the Education Department of Chongqing Municipality(Grant No.KJQN201900615);the Nature Science Foundation of Chongqing(Grant No.cstc2019jcyjmsxm X0696)。

摘　　要：The combined effects of Sm^(3+)substitution together with the addition of 3 wt%Bi_(2)O_(3)endow Mg Cd ferrites with excellent magnetic permeability and dielectric permittivity.Various concentrations of Sm^(3+)(x=0,0.03,0.06,0.09,0.12and 0.15)were employed to modify the permeability(μ)and permittivity(ε)of the Mg Cd ferrites.X-ray diffraction,scanning electron microscopy(SEM),vibrating sample magnetometry and vector network analysis techniques were used to characterize the samples.The measurement results reveal that the ferrites processed a saturation magnetization of up to 36.8 emu/g and coercivity of up to 29.2 Oe via the conventional solid-state reaction method.The surface morphology SEM confirms that with increasing Sm^(3+)concentration,the grain shape changes from a polygon to a circle.Moreover,the dielectric permittivity can reach a value of 23.The excellent properties obtained in Sm^(3+)-substituted Mg ferrites suggest that they could be promising candidates for modern high-frequency antenna substrates or multilayer devices.

关 键 词：ferrites Sm^(3+)ions SUBSTITUTION magnetic permeability dielectric permittivity 

分 类 号：TB34[一般工业技术—材料科学与工程]