Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)

doi:10.1088/1674-1056/ab6c51

中国物理B ›› 2020, Vol. 29 ›› Issue (3): 33101-033101.doi: 10.1088/1674-1056/ab6c51

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇下一篇

Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)

Xiaobin Ding(丁晓彬), Cunqiang Wu(吴存强), Mingxin Cao(曹铭欣), Denghong Zhang(张登红), Mingwu Zhang(张明武), Yingli Xue(薛迎利), Deyang Yu(于得洋), Chenzhong Dong(董晨钟)

1 Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

收稿日期:2019-12-31 修回日期:2020-01-14 出版日期:2020-03-05 发布日期:2020-03-05
通讯作者: Xiaobin Ding E-mail:dingxb@nwnu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. U1832126 and 11874051) and the National Key Research and Development Program of China (Grant No. 2017YFA0402300).

Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)

Xiaobin Ding(丁晓彬)¹, Cunqiang Wu(吴存强)¹, Mingxin Cao(曹铭欣)¹, Denghong Zhang(张登红)¹, Mingwu Zhang(张明武)², Yingli Xue(薛迎利)², Deyang Yu(于得洋)², Chenzhong Dong(董晨钟)¹

1 Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Received:2019-12-31 Revised:2020-01-14 Online:2020-03-05 Published:2020-03-05
Contact: Xiaobin Ding E-mail:dingxb@nwnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. U1832126 and 11874051) and the National Key Research and Development Program of China (Grant No. 2017YFA0402300).

摘要/Abstract

摘要： The x-ray energies and transition rates associated with single and double electron radiative transitions from the double K hole state 2s2p to the 1s2s and 1s² configurations of 11 selected He-like ions (10≤Z≤47) are calculated using the fully relativistic multi-configuration Dirac-Fock method (MCDF). An appropriate electron correlation model is constructed with the aid of the active space method, which allows the electron correlation effects to be studied efficiently. The contributions of the electron correlation and the Breit interaction to the transition properties are analyzed in detail. It is found that the two-electron one-photon (TEOP) transition is correlation sensitive. The Breit interaction and electron correlation both contribute significantly to the radiative transition properties of the double K hole state of the He-like ions. Good agreement between the present calculation and previous work is achieved. The calculated data will be helpful to future investigations on double K hole decay processes of He-like ions.

关键词: electron correlation, multi-configuration Dirac-Fock method (MCDF), double K hole state, two-electron one-photon (TEOP) transition

Abstract: The x-ray energies and transition rates associated with single and double electron radiative transitions from the double K hole state 2s2p to the 1s2s and 1s² configurations of 11 selected He-like ions (10≤Z≤47) are calculated using the fully relativistic multi-configuration Dirac-Fock method (MCDF). An appropriate electron correlation model is constructed with the aid of the active space method, which allows the electron correlation effects to be studied efficiently. The contributions of the electron correlation and the Breit interaction to the transition properties are analyzed in detail. It is found that the two-electron one-photon (TEOP) transition is correlation sensitive. The Breit interaction and electron correlation both contribute significantly to the radiative transition properties of the double K hole state of the He-like ions. Good agreement between the present calculation and previous work is achieved. The calculated data will be helpful to future investigations on double K hole decay processes of He-like ions.

Key words: electron correlation, multi-configuration Dirac-Fock method (MCDF), double K hole state, two-electron one-photon (TEOP) transition

中图分类号: (Electron correlation calculations for atoms and ions: excited states)

31.15.vj

31.30.J- (Relativistic and quantum electrodynamic (QED) effects in atoms, molecules, and ions) 32.80.Aa (Inner-shell excitation and ionization)

丁晓彬, 吴存强, 曹铭欣, 张登红, 张明武, 薛迎利, 于得洋, 董晨钟. Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)[J]. 中国物理B, 2020, 29(3): 33101-033101.

Xiaobin Ding(丁晓彬), Cunqiang Wu(吴存强), Mingxin Cao(曹铭欣), Denghong Zhang(张登红), Mingwu Zhang(张明武), Yingli Xue(薛迎利), Deyang Yu(于得洋), Chenzhong Dong(董晨钟). Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)[J]. Chin. Phys. B, 2020, 29(3): 33101-033101.

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Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)

Effects of electron correlation and the Breit interaction on one- and two-electron one-photon transitions in double K hole states of He-like ions (10≤Z≤47)

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