镨离子基态分裂的晶场模拟  

Crystalline Electric Field Simulation of Pr^(3+) Ground State Splitting

作　　者：王帅[1] 李涛[2] 

机构地区：[1]菏泽学院物理系,山东菏泽274015 [2]郑州轻工业学院技术物理系,河南郑州450002

出　　处：《菏泽学院学报》2007年第5期48-50,共3页Journal of Heze University

基　　金：河南省教育厅自然科学基金资助项目(200510482003)

摘　　要：通过对A.Szytula小组测量的稀土化合物PrAg2Ge2磁化率倒数-温度曲线的晶场模拟,得到了PrAg2Ge2的分裂能和相应波函数.并从理论上分析了晶场效应对Pr3+基态的影响,计算结果与实验吻合较好.计算表明:非Kramer离子Pr3+的九重简并基态在四方晶场的影响下分裂为五个单态和两个双态.We simulate the temperature dependence of the inverse magnetic susceptibility of rare earth compound - PrAg2Ge2 measured by A. Szytula group by taking into account of the crystalline electric field （CEF）. Through this calculation, we obtain the CEF splitting levels and the corresponding wave functions of PrAgaGe2. The CEF scheme suggests that the calculated results are in good agreement with the experimental data. The CEF analysis shows that the nine - fold ground state of non - Kramer ion Pr^3 ＋ becomes five singlets and two doublets with the tetragonal CEF.

关 键 词：镨离子基态 磁化率 晶场效应 

分 类 号：O482.54[一般工业技术—材料科学与工程]