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Relativistic Multichannel Treatment of Ionic Rydberg States of Lanthanum |
| ZHANG Xin-Feng1;JIA Feng-Dong2;ZHONG Zhi-Ping2;XUE Ping1;XU Xiang-Yuan1,3;YAN Jun4 |
| 1The Key Laboratory of Atomic and Molecular Nanosciences of the Ministry o f Education, Department of Physics, Tsinghua University, Beijing 1000842College of Physical Sciences, Graduate University of the Chinese Academy of Sciences, PO Box 4588, Beijing 1000493Department of Physics, Capital Normal University, Beijing 1000374Institute of Applied Physics and Computational Mathematics, PO Box 8009, Beijing 100088 |
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| Cite this article: |
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ZHANG Xin-Feng, JIA Feng-Dong, ZHONG Zhi-Ping et al 2007 Chin. Phys. Lett. 24 2808-2811 |
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Abstract Ionic Rydberg energy levels of lanthanum are calculated from first principles by relativistic multichannel theory within the framework of multichannel quantum defect theory. The present calculated results are in better agreement with the experimental measurements than the previous calculations [J. Phys. B 34(2001)369] due to the consideration of dynamical polarizations. Moreover, in the experimental spectra achieved by a five-laser resonance excitation via the intermediate state 5d6d3 F2, a series of weak ionic Rydberg states and some of perturbing states are found and assigned in this work.
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| Keywords:
31.25.Jf
31.30.Jv
32.80.Dz
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Received: 28 May 2007
Published: 20 September 2007
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