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用双ＳＯ耦合模型推导了立方晶场中３ｄ４／３ｄ６离子５Ｄ态的哈密顿矩阵公式（２５×２５阶）．用该公式计算了晶体ＺｎＳｅ∶Ｆｅ２＋的基态精细结构分裂，研究了在外磁砀为０—３０Ｔ范围以及在［１００］和［１１１］方向的Ｚｅｍａｎ分裂、Ｒａｍａｎ移动和磁化强度．理论计算与实验符合很好．
The Hamiltonian matrix formula (25 × 25 order) of the 3d4 / 3d6 ion 5D state in the cubic crystal field is deduced by the dual SO coupled model. Using this formula, the ground-state fine structure splitting of crystalline ZnSe:Fe2 + was calculated. The Zeman splitting, Raman shift and magnetization in the range of 0-30T and the [100] and [111] directions were investigated. The theoretical calculation is in good agreement with the experiment.