Zn^(2+)、Sn^(4+)共取代对YIG铁氧体性能的影响  

Influence of Zn^(2+) and Sn^(4+) Substitution on Properties of YIG Ferrites

作　　者：张宁宁[1] 苏桦[1] 荆玉兰[1] 张怀武[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《压电与声光》2015年第3期450-452,455,共4页Piezoelectrics & Acoustooptics

基　　金：四川省科技支撑基金资助项目(2013GZX0144;2014GZ0015)

摘　　要：该文通过1 400℃固相烧结制备出Zn2+和Sn4+共取代的Y3Fe5-2xZnxSnxO12(x=0~0.35)铁氧体材料,详细研究了离子取代量对钇铁石榴石铁氧体微观结构及磁性能的影响。研究表明,Zn2+、Sn4+都进入了钇铁石榴石铁氧体的晶格中。随着离子取代量的增加,钇铁石榴石铁氧体的密度与饱和磁化强度先增大后减小;其磁损耗则先减小后增大,在x=0.25时磁损耗取得最小值。该研究进一步说明了Zn2+和Sn4+取代在一定范围内可有效降低材料的磁损耗及控制材料的饱和磁化强度。The Y3Fe5-2xZnxSnxO12（x=0-0.35） ferrites with Znz＋ and Sn4＋ sustitution were prepared at 1 400 ℃ by the solid state method. The effects of Zn and Sn substitution content on the mierostrueture and magnet- ic properties of yttrium iron garnet ferrites were investigated. The results show that Zn2＋ and Sn4＋ entered into the crystal lattice of yttrium iron garnet ferrites. Moreover, with the increase of substitution content, the density and saturation magnetization of the yttrium iron garnet ferrites first increased, reached a maximum and then decreased. On the other hand, the magnetic loss of specimens first decreased, reached a minimum value at x=0.25 and then in- creased. As a result, it could effectively reduce the magnetic loss of yttrium iron garnet ferrite and control saturation magnetization of materials with a certain substitution content.

关 键 词：钇铁石榴石铁氧体 Zn和Sn离子取代 铁磁共振线宽 饱和磁化强度 

分 类 号：TM277.3[一般工业技术—材料科学与工程]