PtCo合金的光学、热学结构优化设计  

Optimized Design of the Optical and Thermal Structure for PtCo Alloy

作　　者：周健[1] 荀坤[1] 沈德芳[1] 浦天延[2] 

机构地区：[1]中国科学院上海冶金研究所,上海200050 [2]新加坡国立大学电子工程系,新加坡119620

出　　处：《中国激光》1999年第11期997-1002,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金!No.69777016

摘　　要：成功地制备了以PtCo合金膜为磁光层的四层膜结构。基于该结构研究了各层厚度对克尔转角、反射率及品质因子的影响，给出了多层膜结构的光学优化结构。通过热学优化，给出了适应于该体系磁光记录的可能最佳结构。比较发现，在考虑反射率的条件下，克尔转角的增强是以牺牲反射率为代价的，因此，选择各层优化厚度必须综合考虑磁光层温度、反射率、克尔转角等热、光学因素。最后，给出了可能的热、光学综合优化结构。A Quadrilayer with PtCo alloy as a MO layer was suecessfully prepared. Based on the quadrilayer,the effect of the thickness of each layer upon Keer rotation, reflectivity and figure of merit was studied and an optimum optical structure was shown. For the thermal design, an optimum structure suitable for thermo-magnetic recording was obtained.When considering the effect of the reflectivity, the Keer rotation can be enhenced by decreasing the reflectivity. Therefore, the structure design shoud be carried out by considering reflectivity, Keer rotation and temperature of the MO layer at the same time.An optimum thermal and optical structure was given.

关 键 词：PtCo合金 结构优化设计 光学 热学 激光材料 

分 类 号：TN244[电子电信—物理电子学]