掺Gd^(3+)、Sn^(4+)的YIG微波铁氧体高功率特性  

High Power Research of YIG Microwave Ferrite With Gd^(3+)、Sn^(4+) Ions

作　　者：洪向东[1] 许启明[1] 郝利军[1] 

机构地区：[1]西安建筑科技大学材料科学与工程学院,陕西西安710055

出　　处：《材料科学与工程学报》2008年第3期446-448,共3页Journal of Materials Science and Engineering

摘　　要：宽温度稳定性,大功率一直是微波铁氧体材料研究的重点。本文根据器件对材料的要求,采用陶瓷工艺,通过研究Gd3+、Sn4+离子对YIG的c位Y3+、a位Fe3+离子的取代,得出在适当工艺条件下,当x=0.7、y=0.3时,材料具有良好的温度稳定性,Ms=75×10-4T、ΔHk=1.1 kA/m。材料很好地满足了宽温度稳定性、高功率用x波段旋磁器件的要求。The wide temperature stability and high power are the important properties of microwave ferrite＇s research all the time, According to the request of components to materials, the material is prepared by ceramics process and the ions of Gd^3＋ ,Sn^4＋ substituting for the YIG. The material has good temperature stability, Ms= 75 × 10^-4 T, AHk = 1. 1 kA/m at the appropriate process when x=0.7 and y=0.3, which meets well to the x wave band microwave garnet ferrites with the wide temperature stability and high power.

关 键 词：微波铁氧体 自旋波线宽 铁磁共振线宽 

分 类 号：TN277.3[电子电信—物理电子学]