摘要
本文在SCCF模型的基础上,构造了d^5系在O_k对称晶场下四重态的完全能量矩阵。求出了KMgF_3:Mn^(2+)中Mn^(2+)的d-d跃迁(△S=1)能级。理论计算与观测结果的一致性表明:~4A_(1g)(G)和~4E_R(G)态的分裂只能起因于自旋相关效应;38715cm^(-1)、40650cm^(-1)、43860cm^(-1)带有了相应的跃迁指定。解释了SCCF模型未能指定的~4T_(1R)(G)、~4T_(2R)(G)、~4T_(2R)(D)、~4E_R(D)和~4T_(1R)(P)能级的分裂。
On the basis or the SCCF model, the complete energy matrices of O_h double group for spin quartet states of d^s system have been formulated. The energy levels of d-d transistion of Mn^(2+) in KMgF_3: Mn^(2+) are calculated with these matrices. Calculted resultes are good agree- ment with experment observation. The splitting of energy level between ~4A_(1?) (G) and ~4E_g(G) is orginated from spin-correlation effection; three absorption bands (38715cm^(-1), 40650cm^(-1), 43860cm^(-1)) can be assigned in our model; some bands which can't be explained by the SCCF model have been explained with our calculated results.
