Interesting Features of n^2D Rydberg Series Fine-Structure Splittings along the Sodium-Like Isoelectronic Sequence  

作　　者：王晓路 刘凌涛 高翔 沈纯 李家明 

机构地区：[1]Department of Physics, Shanghai Key Laboratory for Laser Fabrication and Material Science, Shanghai Jiaotong University, Shanghai 200240 [2]The Key Laboratory of Atomic and Molecular Nanosciences of the Ministry of Education, Department of Physics Tsinghua University, Beijing 100084

出　　处：《Chinese Physics Letters》2008年第12期4244-4247,共4页中国物理快报（英文版）

基　　金：Supported by the Ministry of ＇Science and Technology and Ministry of Education of China, the Key Grant Project of Chinese Ministry of Education （No 306020）, the National Natural Science Foundation of China under Grant No 10734040, the National High-Tech ICF Committee in China and the Yin-He Super-computer Center, Institute of Applied Physics and Mathematics, Beijing, China, and the National Basic Research Programme of China under Grant No 2006CB921408.

摘　　要：Using a simplified multi-configuration Dirac-Fock （SMCDF） scheme based on the multi-configuration Dirac-Fock （MCDF） theory, we study the systematic variations of the fine-structure splittings of n^2 D3/2,5/2 Rydberg series along the sodium-like isoelectronic sequence, i.e. the fine-structure orderings vary with increasing atomic number Z. The competition between the spin-orbit interactions and the exchange interactions due to relativistic effects of the nd orbital wavefunctions well explain such variations. Furthermore, the effect of Breit interactions which plays the secondary role is studied.Using a simplified multi-configuration Dirac-Fock （SMCDF） scheme based on the multi-configuration Dirac-Fock （MCDF） theory, we study the systematic variations of the fine-structure splittings of n^2 D3/2,5/2 Rydberg series along the sodium-like isoelectronic sequence, i.e. the fine-structure orderings vary with increasing atomic number Z. The competition between the spin-orbit interactions and the exchange interactions due to relativistic effects of the nd orbital wavefunctions well explain such variations. Furthermore, the effect of Breit interactions which plays the secondary role is studied.

关 键 词：field emission molybdenum dioxide enhancement factor 

分 类 号：O412.1[理学—理论物理]