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Chin. Phys. B, 2018, Vol. 27(8): 083201    DOI: 10.1088/1674-1056/27/8/083201

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
Abstract  The photoionization cross section of the ground state 2s22p 2P1/2o and the first excited state 2s22p 2P3/2o 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.
Keywords:  photoionization cross section      relativistic R-matrix method      C Ⅱ  
Received:  30 March 2018      Revised:  17 May 2018      Accepted manuscript online: 
PACS:  32.80.-t (Photoionization and excitation) (Relativistic configuration interaction (CI) and many-body perturbation calculations)  
Fund: 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).
Corresponding Authors:  Lu-You Xie     E-mail:

Cite this article: 

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 2018 Chin. Phys. B 27 083201

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