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Fine-Structure Splittings of Nitrogen Isoelectronic Sequence: Competitions among Spin-Orbit Interactions, Breit Interactions and Electron Correlations
引用本文:王晓路 陈少豪 韩晓英 李家明. Fine-Structure Splittings of Nitrogen Isoelectronic Sequence: Competitions among Spin-Orbit Interactions, Breit Interactions and Electron Correlations[J]. 中国物理快报, 2008, 25(3): 903-906
作者姓名:王晓路 陈少豪 韩晓英 李家明
作者单位:[1]Department or Physics, Shanghai Key Laboratory for Laser Fabrication and Material Science, Shanghai Jiaotong University, Shanghai 200240 [2]The Key Laboratory or Atomic and Molecular Nanosciences or the Ministry or Education, Department or Physics, Tsinghua University, Beijing 100084
基金项目:Supported by the Key Project of the Ministry of Education of China under Grant No 306020, the National Natural Science Foundation of China, 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 the multi-configuration Dirac-Fock self-consistent field method and the relativistic configuration interaction method with quantum-electrodynamics corrections performed by the GRASP code, we calculate the fine-structure energy levels of the ground-state configuration (1s^22s^22p^3) of the nitrogen isoelectronic sequence, according to the L-S coupling scheme with atomic number Z up to 22. Based on the calculated results, we elucidate the mechanism of the orderings of fine-structure energy levels of 2^ D3/2,5/2 and 2^P1/2,3/2 respectively, i.e. for 2^D3/2,5/2 orderings, the competition between the spin-orbit interactions and the Breit interactions; for 2^P1/2,3/2 orderings, the electron correlations, especially the electron correlations owing to the 2p^5 configuration interactions.

关 键 词:等电子序列  自旋轨道  电子运动  物理学
收稿时间:2007-12-09

Fine-Structure Splittings of Nitrogen Isoelectronic Sequence: Competitions among Spin--Orbit Interactions, Breit Interactions and Electron Correlations
WANG Xiao-Lu,CHEN Shao-Hao,HAN Xiao-Ying,LI Jia-Ming. Fine-Structure Splittings of Nitrogen Isoelectronic Sequence: Competitions among Spin--Orbit Interactions, Breit Interactions and Electron Correlations[J]. Chinese Physics Letters, 2008, 25(3): 903-906
Authors:WANG Xiao-Lu  CHEN Shao-Hao  HAN Xiao-Ying  LI Jia-Ming
Affiliation:Department of Physics, Shanghai Key Laboratory for Laser Fabrication and Material Science, Shanghai Jiaotong University, Shanghai 200240The Key Laboratory of Atomic and Molecular Nanosciences of the Ministry of Education, Department of Physics, Tsinghua University, Beijing 100084
Abstract:Using the multi-configuration Dirac--Fock self-consistent field method and the relativistic configuration interaction method with quantum-electrodynamicscorrections performed by the GRASP code, we calculate the fine-structure energy levels of the ground-state configuration (1s22s22p3) of the nitrogen isoelectronic sequence, according to the L-S coupling scheme with atomic number Z up to 22. Based on the calculated results, we elucidate the mechanism of the orderings of fine-structure energy levels of 2D3/2,5/2 and2P1/2,3/2 respectively, i.e. for 2D3/2,5/2 orderings, the competition between the spin--orbit interactions and the Breit interactions; for 2P1/2,3/2 orderings, the electron correlations, especially the electron correlations owing to the2p5 configuration interactions.
Keywords:31.25.-v  31.30.Jv  32.10.Fn
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