Investigation of odd-parity Rydberg states of Eu I with autoionization detection |
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| Authors: | Xiao Ying Dai Chang-Jian Qin Wen-Jie |
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| Affiliation: | Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin 300191, China School of Science, Tianjin University of Technology, Tianjin 300384, China |
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| Abstract: | Isolated-core-excitation (ICE) scheme and autoionization detectionare employed to study the bound Rydberg states of europium atom. Thehigh-lying states with odd parity have been measured using theautoionization detection method with three different excitationpaths via 4f76s6p[ 8P5/2], 4f76s6p[ 8P7/2]and 4f76s6p[ 8P9/2] intermediate states, respectively. Inthis paper the spectra of bound Rydberg states of Eu atom arereported, which cover the energy regions from 36000~cm-1 to38250~cm-1 and from 38900~cm-1 to 39500 cm-1.The study provides the information about level energy, the possibleJ values and relative line intensity as well as the effectiveprincipal quantum number n^* for these states. This work not onlyconfirms the previous results of many states, but also discovers 11new Rydberg states of Eu atom. |
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| Keywords: | europium atom isolated-core-excitation bound Rydberg state autoionization detection |
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