Ag保护层对TbFeCo磁光薄膜光学性质的影响  

Influence of Ag Protective Layers on the Optical Property of TbFeCo Magneto-optical Films

作　　者：余平[1] 任雪勇[1] 梁艳[1] 曾武贤[1] 张晋敏[1] 

机构地区：[1]贵州大学电子科学与信息技术学院,贵州贵阳550025

出　　处：《磁性材料及器件》2007年第3期24-26,共3页Journal of Magnetic Materials and Devices

基　　金：贵州省教育厅大学生创业基金项目(701059101);贵州省科技厅自然科学基金资助项目(20033059);贵州省教育厅自然科学基金资助项目(2003315)

摘　　要：用直流磁控溅射法制备出Ag/TbFeCo/Si(100)磁光薄膜。利用可变入射角椭圆偏振光谱仪测量了其可见光区的光学常数,给出薄膜介电函数实部和虚部随入射光子能量的变化规律,结果与经典的Drude模型相一致。同时把Ag/Si、Ag/TbFeCo/Si和TbFeCo/Si的光谱进行了比较,结果表明,由于Ag的高反射率,Ag/TbFeCo/Si的光谱更接近Ag。Ag/TbFeCo/Si（100） magneto-optical films were prepared by DC-magnetron sputtering. The dielectric constants of the Ag/TbFeCo/Si were measured by alterable angle ellipsometry. The results are consistent to Drude model. Besides, we compared the spectrum of Ag/Si Ag/TbFeCo/Si and TbFeCo/Si. The results of experiment indicated that the spectrum of Ag/TbFeCo/Si is much more close to that of Ag for its high refiectivity.

关 键 词：Ag/TbFeCo/Si(100)磁光薄膜 椭偏光谱 磁控溅射 

分 类 号：O484.41[理学—固体物理]