Photoionization of the ground and first two metastable levels for ScIII: Configuration-interaction and relativistic effects

	Photoionization of the ground and first two metastable levels for ScIII: Configuration-interaction and relativistic effects
	Zeng, JL ; Zhao, G; Yuan, JM
刊名	PHYSICAL REVIEW A
	2003-08-01
卷号	68 期号:2
英文摘要	The photoionization cross section of the ground ([Ne]3s(2)3p(6)3d D-2(3/2)) and first two metastable ([Ne]3s(2)3p(6)3d D-2(5/2) and [Ne]3s(2)3p(6)4s S-2(1/2)) levels of potassiumlike Sc III have been studied using fully relativistic R-matrix method. To show the effects of configuration interaction on the cross section, we first perform a nonrelativistic R-matrix calculation. The detailed structures and resonances of the cross section obtained by the fully relativistic method in the region of 3p-->3d and 3p-->4s resonances are described and analyzed in some detail. The positions, autoionization widths, and oscillator strengths of some prominent resonances are determined. The calculated cross section is compared with a recent experiment [S. Schippers , Phys. Rev. Lett. 89, 193002 (2002)]. The resonance energies and intensities predicted by the fully relativistic calculations agree well with the experiment, especially for the 3p-->4s resonances in the region of lower photon energy, while it is not so satisfactory for the nonrelativistic calculations. Our results show that not only adequate configuration interaction, particularly the 3p(3)-->3d(3) core-valence correlations, but also relativistic effects should be carefully included in the calculation to obtain a good agreement with the experiment.
收录类别	SCI
语种	英语
WOS记录号	WOS:000185192100069
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6965]
专题	国家天文台_光学天文研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Natl Univ Defense Technol, Dept Appl Phys, Changsha 410073, Peoples R China
推荐引用方式 GB/T 7714	Zeng, JL,Zhao, G,Yuan, JM. Photoionization of the ground and first two metastable levels for ScIII: Configuration-interaction and relativistic effects[J]. PHYSICAL REVIEW A,2003,68(2).
APA	Zeng, JL,Zhao, G,&Yuan, JM.(2003).Photoionization of the ground and first two metastable levels for ScIII: Configuration-interaction and relativistic effects.PHYSICAL REVIEW A,68(2).
MLA	Zeng, JL,et al."Photoionization of the ground and first two metastable levels for ScIII: Configuration-interaction and relativistic effects".PHYSICAL REVIEW A 68.2(2003).