Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ

doi:10.1088/1674-1056/27/8/083201

中国物理B ›› 2018, Vol. 27 ›› Issue (8): 83201-083201.doi: 10.1088/1674-1056/27/8/083201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ

Lu-You Xie(颉录有), Qian-Qian Man(满倩倩), Jian-Guo Wang(王建国), Yi-Zhi Qu(屈一至), Chen-Zhong Dong(董晨钟)

1 Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
2 Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
3 College of Material Sciences and Opto-electronic Technology, University of the Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2018-03-30 修回日期:2018-05-17 出版日期:2018-08-05 发布日期:2018-08-05
通讯作者: Lu-You Xie E-mail:xiely@nwnu.edu.cn
基金资助:
Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402300), the National Natural Science Foundation of China (Grant Nos. U1530142, 11474032, and 11774344), and the Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University (Grant No. NWNU-LKQN-15-3).

Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ

Lu-You Xie(颉录有)¹, Qian-Qian Man(满倩倩)¹, Jian-Guo Wang(王建国)², Yi-Zhi Qu(屈一至)³, Chen-Zhong Dong(董晨钟)¹

1 Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
2 Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
3 College of Material Sciences and Opto-electronic Technology, University of the Chinese Academy of Sciences, Beijing 100049, China

Received:2018-03-30 Revised:2018-05-17 Online:2018-08-05 Published:2018-08-05
Contact: Lu-You Xie E-mail:xiely@nwnu.edu.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402300), the National Natural Science Foundation of China (Grant Nos. U1530142, 11474032, and 11774344), and the Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University (Grant No. NWNU-LKQN-15-3).

摘要/Abstract

摘要： The photoionization cross section of the ground state 2s²2p 2P_1/2^o and the first excited state 2s²2p 2P_3/2^o of C Ⅱ ions are systematically calculated using the fully relativistic R-matrix code DARC. The detailed resonances are presented and identified for the photon energy ranging from threshold (24.38 eV) up to 41.5 eV where the L-shell (2p, 2s) photoionization process is dominant. In the calculations, the relativistic effect and electronic correlation effect are well considered. It is found that the relativistic effect is very important for the light atomic system CⅡ, which accounts for experimentally observed fine structure resonance peaks. A careful comparison is made between the present results and the experimental values, and also other theoretical data available in the literature, showing that good agreement is obtained for the resonance peaks.

关键词: photoionization cross section, relativistic R-matrix method, C Ⅱ

Abstract: The photoionization cross section of the ground state 2s²2p 2P_1/2^o and the first excited state 2s²2p 2P_3/2^o of C Ⅱ ions are systematically calculated using the fully relativistic R-matrix code DARC. The detailed resonances are presented and identified for the photon energy ranging from threshold (24.38 eV) up to 41.5 eV where the L-shell (2p, 2s) photoionization process is dominant. In the calculations, the relativistic effect and electronic correlation effect are well considered. It is found that the relativistic effect is very important for the light atomic system CⅡ, which accounts for experimentally observed fine structure resonance peaks. A careful comparison is made between the present results and the experimental values, and also other theoretical data available in the literature, showing that good agreement is obtained for the resonance peaks.

Key words: photoionization cross section, relativistic R-matrix method, C Ⅱ

中图分类号: (Photoionization and excitation)

32.80.-t

31.15.am (Relativistic configuration interaction (CI) and many-body perturbation calculations)

颉录有, 满倩倩, 王建国, 屈一至, 董晨钟. Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ[J]. 中国物理B, 2018, 27(8): 83201-083201.

Lu-You Xie(颉录有), Qian-Qian Man(满倩倩), Jian-Guo Wang(王建国), Yi-Zhi Qu(屈一至), Chen-Zhong Dong(董晨钟). Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ[J]. Chin. Phys. B, 2018, 27(8): 83201-083201.

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Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ

Relativistic R-matrix calculations for L-shell photoionization cross sections of C Ⅱ

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