Chin. Phys. Lett.  2008, Vol. 25 Issue (12): 4244-4247    DOI:
Original Articles |
Interesting Features of n2D Rydberg Series Fine-Structure Splittings along the Sodium-Like Isoelectronic Sequence
WANG Xiao-Lu1, LIU Ling-Tao1, GAO Xiang1, SHEN Chun1, LI Jia-Ming 1,2
1Department of Physics, Shanghai Key Laboratory for Laser Fabrication and Material Science, Shanghai Jiaotong University, Shanghai 2002402The Key Laboratory of Atomic and Molecular Nanosciences of the Ministry of Education, Department of Physics, Tsinghua University, Beijing 100084
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WANG Xiao-Lu, LIU Ling-Tao, GAO Xiang et al  2008 Chin. Phys. Lett. 25 4244-4247
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Abstract 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 n2D3/2,5/2 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.
Keywords: 31.30.Jv      32.10.Fn     
Received: 01 September 2008      Published: 27 November 2008
PACS:  31.30.Jv  
  32.10.Fn (Fine and hyperfine structure)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I12/04244
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WANG Xiao-Lu
LIU Ling-Tao
GAO Xiang
SHEN Chun
LI Jia-Ming
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