Single and double Auger decay of 4f-ionized mercury including cascade and direct processes

doi:10.1088/1674-1056/27/6/063201

中国物理B ›› 2018, Vol. 27 ›› Issue (6): 63201-063201.doi: 10.1088/1674-1056/27/6/063201

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

Single and double Auger decay of 4f-ionized mercury including cascade and direct processes

Yu-Long Ma(马玉龙), Fu-Yang Zhou(周福阳), Zhen-Qi Liu(刘振旗), Yi-Zhi Qu(屈一至)

1 College of Material Sciences and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
2 Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

收稿日期:2018-03-05 修回日期:2018-04-03 出版日期:2018-06-05 发布日期:2018-06-05
通讯作者: Yi-Zhi Qu E-mail:yzqu@ucas.ac.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.11774344 and 11474033),and the Joint Foundation of the National Natural Science Foundation and the China Academy of Engineering Physics (Grant No.U1330117).

Single and double Auger decay of 4f-ionized mercury including cascade and direct processes

Yu-Long Ma(马玉龙)¹, Fu-Yang Zhou(周福阳)², Zhen-Qi Liu(刘振旗)¹, Yi-Zhi Qu(屈一至)¹

1 College of Material Sciences and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;
2 Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Received:2018-03-05 Revised:2018-04-03 Online:2018-06-05 Published:2018-06-05
Contact: Yi-Zhi Qu E-mail:yzqu@ucas.ac.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.11774344 and 11474033),and the Joint Foundation of the National Natural Science Foundation and the China Academy of Engineering Physics (Grant No.U1330117).

摘要/Abstract

摘要：

Single (SA) and double (DA) Auger decay including cascade and direct processes are investigated for Hg 4f^-1 with multiconfiguration Dirac-Fock method and two-step approaches, i.e., knockout and shakeoff mechanisms. Due to the computational effort, only the major transitions are considered to describe the SA and DA decays for the Hg⁺ ions with complex electronic configurations. In order to estimate the Auger transition energies and amplitudes, the reference configuration sets producing the configuration state functions are carefully chosen for balancing electron correlations among the successive singly, doubly and triply ionized mercury. The Auger rates and electron spectra, DA probabilities as well as the populations of the final Hg³⁺ states are obtained. Our results well explain the recent experimental data about the 4f hole states of Hg[Palaudoux J et al., Phys. Rev. A 91 012513 (2015)], and could provide guidance for further studies on complex atoms. Particularly for the DA decay, the contributions of the direct processes, which are neglected in their calculations, are found to be important, accounting for as high as about 38% and 34% of the total DA decays for the 4f_7/2^-1 and 4f_5/2^-1, respectively.

关键词: single Auger, cascade double Auger, direct double Auger, Hg 4f^-1

Abstract:

Key words: single Auger, cascade double Auger, direct double Auger, Hg 4f^-1

中图分类号: (Auger effect)

32.80.Hd

32.80.Zb (Autoionization) 31.15.vj (Electron correlation calculations for atoms and ions: excited states)

马玉龙, 周福阳, 刘振旗, 屈一至. Single and double Auger decay of 4f-ionized mercury including cascade and direct processes[J]. 中国物理B, 2018, 27(6): 63201-063201.

Yu-Long Ma(马玉龙), Fu-Yang Zhou(周福阳), Zhen-Qi Liu(刘振旗), Yi-Zhi Qu(屈一至). Single and double Auger decay of 4f-ionized mercury including cascade and direct processes[J]. Chin. Phys. B, 2018, 27(6): 63201-063201.

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Single and double Auger decay of 4f-ionized mercury including cascade and direct processes

Single and double Auger decay of 4f-ionized mercury including cascade and direct processes

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