多电子原子和离子的等电子系参数的研究 (Ⅰ) k系数的引入与节点数的校正  

A STUDY ON PARAMETERS OF THE ISOELECTRONIC SEQUENCE OF MANY-ELECTRON ATOMS AND IONS ( I ) INTRODUCTION OF k COEFFICIENT AND ADJUSTMENT OF THE NUMBER OF NODES

作　　者：郑能武[1] 李国胜[1] 

机构地区：[1]中国科学技术大学应用化学系,合肥,230026

出　　处：《物理学报》1993年第5期727-734,共8页Acta Physica Sinica

基　　金：国家自然科学基金资助的课题

摘　　要：从分析比较标准量子亏损理论与最弱受约束电子势模型理论中能量的不同表征方式出发,试引入可以反映原子(离子)体系中屏蔽效应的k校正系数。不同方次的平均值及其它计算结果表明,引入的k系数,不但使直接使用有关等电子系参数进行里德伯系性质的描述很准确,而且在一定程度上反映了这两种系列之间的区别和联系。关于价电子轨道波函数节点数的校正,亦是本文的核心内容之一。From comparing the energy expression within the quantum defect theory (QDT) and the theory of the weakest bound electron potential model (WBEPM), we try to introduce a ad-justing coefficient k which can reflect the screening effects in the real atomic or ionic system. The calculation of expectation values of the radius and others shows that the coefficient k in-troduced not only makes accurate the describing of Rydbery series when using the parameters of isoelectronic series ; but also reveals the difference and relation between these two series. Another main content of this paper is about the adjustment of the number of nodes in eigen-functions of the valence electrons for atoms.

关 键 词：等电子原子 浓函数 节点 校正 

分 类 号：O562.1[理学—原子与分子物理]