YGG:Cr^(3+)低温常压下的能谱和g因子的理论计算  

Theoretical calculation of the optical spectra and g factors for YGG :Cr^(3+)at low temperature and normal pressure

作　　者：杨阔[1,2] 张纪平[1] 

机构地区：[1]四川大学物理科学与技术学院,成都610064 [2]阿坝师范高等专科学校物理系,成都610000

出　　处：《原子与分子物理学报》2009年第2期378-382,共5页Journal of Atomic and Molecular Physics

摘　　要：采用对角化由强场方案和无耦合的三角基建立的三角畸变八面体场中的d^3离子完全能量矩阵,对YGG:Cr^(3+)在低温常压下的能谱及波函数进行了拟合计算,并分析了各参数对部分能级的影响,定量地显示了能级分裂的影响因素.同时,使用对角化完全能量矩阵所获得的基态波函数,进一步计算了YGG:Cr^(3+)的基态g因子.各项计算结果均与实验符合很好.By diagonalizing the complete energy matrix based on the strong-field scheme and non-coupling trigonal bases for d^3 ions in a trigonally-distorted octahedron-field,the energy spectra and wave functions of YGG:Cr^(3+)at low temperature and normal pressure are calculated.In addition,the influences of various adjustable parameters to the energy levels are also studied.Furthermore,the g factors are evaluated in terms of the ground-state wave functions.All the calculated results are in good agreement with experimental data.

关 键 词：晶体场 能谱 G因子 完全能量矩阵 

分 类 号：O482.53[理学—固体物理]