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Chin. Phys. B, 2009, Vol. 18(10): 4251-4258    DOI: 10.1088/1674-1056/18/10/027
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Investigation of odd-parity Rydberg states of Eu I with autoionization detection

Xiao Ying(肖颖), Dai Chang-Jian(戴长建), and Qin Wen-Jie(秦文杰)
Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin 300191, China School of Science, Tianjin University of Technology, Tianjin 300384, China
Abstract  Isolated-core-excitation (ICE) scheme and autoionization detection are employed to study the bound Rydberg states of europium atom. The high-lying states with odd parity have been measured using the autoionization detection method with three different excitation paths via 4f76s6p[ 8P5/2], 4f76s6p[ 8P7/2] and 4f76s6p[ 8P9/2] intermediate states, respectively. In this paper the spectra of bound Rydberg states of Eu atom are reported, which cover the energy regions from 36000 cm-1 to 38250 cm-1 and from 38900 cm-1 to 39500 cm-1. The study provides the information about level energy, the possible J values and relative line intensity as well as the effective principal quantum number n* for these states. This work not only confirms the previous results of many states, but also discovers 11 new Rydberg states of Eu atom.
Keywords:  europium atom      isolated-core-excitation      bound Rydberg state      autoionization detection  
Received:  02 January 2009      Revised:  11 March 2009      Accepted manuscript online: 
PACS:  32.80.Zb (Autoionization)  
  32.30.Jc (Visible and ultraviolet spectra)  
  32.80.Fb (Photoionization of atoms and ions)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10574098, 10674102) and the Natural Science Foundation of Tianjin (Grant No 05YFJMJC05200).

Cite this article: 

Xiao Ying(肖颖), Dai Chang-Jian(戴长建), and Qin Wen-Jie(秦文杰) Investigation of odd-parity Rydberg states of Eu I with autoionization detection 2009 Chin. Phys. B 18 4251

[1] Experimental study of bound and autoionizing Rydberg states of the europium atom
Xiao Ying(肖颖), Dai Chang-Jian(戴长建), and Qin Wen-Jie(秦文杰). Chin. Phys. B, 2010, 19(6): 063202.
[2] Investigation of autoionization spectra of Sm atoms using an isolated-core excitation method
Qin Wen-Jie(秦文杰), Dai Chang-Jian(戴长建), Xiao Ying(肖颖), and Zhao Hong-Ying(赵洪英). Chin. Phys. B, 2009, 18(5): 1833-1837.
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