旋轨耦合作用对Ti^(3+):Al_2O_3能级分裂的贡献  

The contribution of SO coupling to energy level splitting in Ti^(3+): A1_2O_3 crystal

作　　者：马健[1] 杜懋陆[1] 陈庆汉[2] 

机构地区：[1]西南民族大学电气信息工程学院,成都610041 [2]西南技术物理研究所,成都610041

出　　处：《西南民族大学学报（自然科学版）》2005年第5期736-738,共3页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(19774045)

摘　　要：运用晶体场理论对钛宝石能级分裂的精细结构进行了计算,结果说明,在不计Jahn-Teller效应的情况下,考虑晶场和自旋-轨道耦合的共同作用能很好的解释其基态能级分裂,解决了Macfarlane认为不能用晶体场理论进行计算的困难.理论数据与实验结果符合得很好.In this paper, the energy level splitting in Ti^3＋： Al2O3 crystal is calculated with crystal field theory considering the SO coupling. Our result is in agreement with the Far infrared spectra which reflects the splitting of the ground state ^2T2g. Our calculation does not consider the dynamic Jahn-Teller effect reported by Macfarlane, who thought that for both ground and excited state＇s splitting, the dynamic JT effect plays a major role in determining those energies. Our calculation shows that dynamic JT effect is not the main reason for ground＇s splitting.

关 键 词：自旋-轨道耦合 晶体场理论 Ti^3+:Al2O3晶体 能级分裂 

分 类 号：O657.3[理学—分析化学]