Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d 1P1

doi:10.1088/1674-1056/18/10/026

中国物理B ›› 2009, Vol. 18 ›› Issue (10): 4242-4250.doi: 10.1088/1674-1056/18/10/026

Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d ¹P₁

仲银鹏, 贾凤东, 钟志萍

Collage of Physics, Graduate University of Chinese Academy of Sciences, Beijng 100190, China

收稿日期:2008-11-11 修回日期:2009-05-26 出版日期:2009-10-20 发布日期:2009-10-20
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos 10574162 and 10774186), the Scientific Research Fund of Graduate University of the Chinese Academy of Sciences (Grant No 055101BM03).

Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d ¹P₁

Zhong Yin-Peng(仲银鹏), Jia Feng-Dong(贾凤东), and Zhong Zhi-Ping(钟志萍)^†

Collage of Physics, Graduate University of Chinese Academy of Sciences, Beijng 100190, China

Received:2008-11-11 Revised:2009-05-26 Online:2009-10-20 Published:2009-10-20
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos 10574162 and 10774186), the Scientific Research Fund of Graduate University of the Chinese Academy of Sciences (Grant No 055101BM03).

摘要/Abstract

摘要： In the framework of multi-channel quantum defect theory, eigenquantum defects μ_α and the transformation matrices U_iα of La⁺ are calculated from first principles by relativistic multi-channel theory, while the dipole matrix elements D_α are obtained by fitting with experimental data. Then the ionic autoionization spectra of lanthanum via the intermediate state [Xe]5d6d ¹P₁ in the energy region of 90213--91905~cm^-1 are obtained. Experimental peaks are classified and assigned by comparing with the corresponding calculated spectra. More specifically, four ionic autoionization Rydberg series converging to La²⁺ 5d_5/2²D_5/2 and several states converging to higher lying states of La²⁺ are found and assigned.

Abstract: In the framework of multi-channel quantum defect theory, eigenquantum defects $\mu_\alpha$ and the transformation matrices $U_{i\alpha}$ of La⁺ are calculated from first principles by relativistic multi-channel theory, while the dipole matrix elements $D_\alpha$ are obtained by fitting with experimental data. Then the ionic autoionization spectra of lanthanum via the intermediate state [Xe]5d6d ¹P₁ in the energy region of 90213--91905 cm^-1 are obtained. Experimental peaks are classified and assigned by comparing with the corresponding calculated spectra. More specifically, four ionic autoionization Rydberg series converging to La²⁺ 5d_5/2²D_5/2 and several states converging to higher lying states of La²⁺ are found and assigned.

Key words: configuration interaction, multi-channel quantum defect theory, relativistic multi-channel theory, autoionization Rydberg series

中图分类号: (Autoionization)

32.80.Zb

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

仲银鹏, 贾凤东, 钟志萍. Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d ¹P₁[J]. 中国物理B, 2009, 18(10): 4242-4250.

Zhong Yin-Peng(仲银鹏), Jia Feng-Dong(贾凤东), and Zhong Zhi-Ping(钟志萍). Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d ¹P₁[J]. Chin. Phys. B, 2009, 18(10): 4242-4250.

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Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d ¹P₁

Theoretical analysis of ionic autoionization spectra of lanthanum via an intermediate state [Xe]5d6d ¹P₁

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