Sn^(4+)-Cu^(2+)共掺杂对YIG陶瓷结构和磁性能的影响  

Effect of Sna-Cu^(2+)co-doping on the microstructure and magnetic properties of YIG ceramics

作　　者：周孝媛 吴燕辉 郑辉 ZHOU Xiao-yuan;WU Yan-hui;ZHENG Hui(School of Electronics and Information Engineering,Hangzhou Dianzi University,Hangzhou 310018,China;Ninth Institute,China Electronics Technology Group,Mianyang 621000,China)

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018 [2]中国电子科技集团第九研究所,四川绵阳621000

出　　处：《磁性材料及器件》2023年第6期56-60,共5页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(51702075);中国电子科技集团公司第九研究所“揭榜挂帅”项目(2022SK-009)。

摘　　要：采用固相反应法制备了Sn^(^(4+))-Cu^(2+)共掺杂的钇铁石榴石铁氧体Y_(3)Fe_(5-2x)Cu_(x)Sn_(x)O_(12)(x=0,0.05,0.10,0.15)陶瓷。利用X射线衍射仪、拉曼光谱仪、扫描电子显微镜、振动样品磁强计等仪器探究了Sn^(^(4+))-Cu^(2+)离子掺杂浓度对于钇铁石榴石微观形貌、晶体结构、饱和磁化强度以及铁磁共振线宽等方面的综合影响。结果表明,Sn^(^(4+))-Cu^(2+)离子有效进入八面体a位,促进晶粒的生长并获得致密的显微结构;提升激活能,降低氧空位浓度;当掺杂量为x=0.10时,YIG陶瓷的饱和磁化强度具有最大值29.29 emu/g,铁磁共振线宽具有最低值29Oe,优异的电磁特性使其可望在微波器件获得应用。Sn^(4+)-Cu^(2+)co-doped yttrium iron garnet ferrite Y_(3)Fe_(5-2x)Cu_(x)Sn_(x)O_(2)(x=0,0.05,0.10,0.15)ceramics were prepared by solid phase reaction method.By means of X-ray diffractometer,Raman spectrometer,scanning electron microscope and vibrating sample magnetometer,the comprehensive effects of Sn^(4+)-Cu^(2+)ion doping concentration on the microstructure,crystal structure,saturation magnetization and ferromagnetic resonance linewidth of ytrium iron garnet were investigated.The results show that the effective incorporation of Sn^(4+)-Cu^(2+)ions into the octahedral a site which promotes the growth of grain and obtains the compact microstructure,increases activation energy and reduces oxygen vacancy concentration.It obtains the highest saturation magnetization of 29.29 emu/g and lowest ferromagnetic resonance linewidth value of 29 Oe at the doping concentration of x-0.10,reflects excellent electromagnetic characteristics and shows an important application prospect in microwave devices.

关 键 词：钇铁石榴石 掺杂 饱和磁化强度 铁磁共振线宽 

分 类 号：TM277.3[一般工业技术—材料科学与工程]