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Correlation effects on the fine-structure splitting within the 3d9 ground configuration in highly-charged Co-like ions |
| Xue-Ling Guo(郭学玲)1,2, Min Huang(黄敏)1,2, Jun Yan(颜君)3,4, Shuang Li(李双)1,2,Kai Wang(王凯)3,4,5, Ran Si(司然)1,2, Chong-Yang Chen(陈重阳)1,2 |
1. Applied Ion Beam Physics Laboratory of Key Laboratory of the Ministry of Education, Fudan University, Shanghai 200433, China;
2. Shanghai EBIT Lab, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai 200433, China;
3. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
4. Center for Applied Physics and Technology, Peking University, Beijing 100871, China;
5. Hebei Key Lab of Optic-electronic Information and Materials, the College of Physics Science and Technology, Hebei University, Baoding 071002, China |
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Abstract A comprehensive theoretical study of correlation effects on the fine-structure splitting within the ground configuration 3d9 of the Co-like Hf45+, Ta46+, W47+, and Au52+ ions is performed by employing the multi-configuration Dirac-Hartree-Fock method in the active space approximation. It shows that the core-valence correlation with the inner-core 2p electron is more significant than with the outer 3p and 3s electrons, and the correlation with the 2s electron is also noticeable. The core-core correlation seems to be small and can be ignored. The calculated 2 D3/2,5/2 splitting energies agree with the recent electron-beam ion-trap measurements [Phys. Rev. A 83 032517 (2011), Eur. Phys. J. D 66 286 (2012)] to within the experimental uncertainties.
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Received: 24 July 2015
Revised: 31 August 2015
Accepted manuscript online:
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PACS:
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31.15.ag
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(Excitation energies and lifetimes; oscillator strengths)
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31.15.aj
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(Relativistic corrections, spin-orbit effects, fine structure; hyperfine structure)
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31.15.am
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(Relativistic configuration interaction (CI) and many-body perturbation calculations)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11076009 and 11374062), the Chinese Association of Atomic and Molecular Data, the Chinese National Fusion Project for ITER (Grant No. 2015GB117000), and the Leading Academic Discipline Project of Shanghai City, China (Grant No. B107). |
Corresponding Authors:
Chong-Yang Chen
E-mail: chychen@fudan.edu.cn
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Cite this article:
Xue-Ling Guo(郭学玲), Min Huang(黄敏), Jun Yan(颜君), Shuang Li(李双),Kai Wang(王凯), Ran Si(司然), Chong-Yang Chen(陈重阳) Correlation effects on the fine-structure splitting within the 3d9 ground configuration in highly-charged Co-like ions 2016 Chin. Phys. B 25 013101
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