The superposition model of crystal fields
The superposition model of crystal fields
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DOI：
10.1088/0034-4885/52/6/002
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发表时间：
1989-06
影响因子：
18.1
通讯作者：
D. Newman;B. Ng
中科院分区：
文献类型：
--
作者：
D. Newman;B. Ng
叠加模型最初是为了分离晶体场参数中的几何信息和物理信息而发展起来的。它在分析镧系元素谱方面的成功与相关的角重叠模型在分析d电子谱方面的成功是并行的。讨论了叠加模型的基本思想、应用方法和可靠性，并阐明了其与角叠加模型的关系。所描述的发展是将叠加模型应用于d5和f7离子的地面（L=0）多重分裂、轨道-晶格相互作用、跃迁强度和相关晶体场。特别注意的工作已被声称支持或反驳模型的假设。
The superposition model was originally developed to separate the geometrical and physical information in crystal field parameters. Its success in the analysis of lanthanide spectra has been paralleled by the success of the related angular overlap model in the analysis of d-electron spectra. The basic ideas, method of application and reliability of the superposition model are discussed and its relationship with the angular overlap model is clarified. Developments described are the application of the superposition model to the ground (L=0) multiplet splittings of d5 and f7 ions, orbit-lattice interactions, transition intensities and correlation crystal fields. Special attention is paid to work which has been claimed to support or disprove the postulates of the model.