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本文在资料[2]计算镧系金属结合能的基础上,分析了镧系“双峰效应”的本质,指出: (1)出现“双峰”(或“双谷”)的根本原因在于Eu、Yb的“碱土性”; (2)峰(谷)值的高低与Hund法则的强烈作用有关。
Based on the calculation of lanthanide metal binding energy in [2], this paper analyzes the essence of lanthanide “bimodal effect” and points out that: (1) The fundamental reason for the appearance of “doublet” (or “doublet” , Yb “alkaline earth”; (2) The peak (valley) value is related to the strong effect of Hund’s law.