Chinese Optics Letters, Vol. 5, Issue 8, 438 (2007)
Calculations of Rydberg energy levels for Ni XVIII using the weakest bound electron potential model theory
Chao Zhou*, Liang Liang, and Ling Zhang
- Department of Physics, Xi'an University of Architecture and Technology, Xi'an 710055
Martin expression about the quantum defect of single-valence atoms is extended to many-valence atoms by identifying the weakest bound electron (WBE) under the weakest bound electron potential model (WBEPM) theory. Six Rydberg series energy levels of 2p6np2Po_(1/2) (n>3), 2p6np2Po_(3/2) (n>3), 2p6nd2D_(3/2) (n>3), 2p6nd2D_(5/2) (n>3), 2p6nf2Fo_(5/2) (n>4), and 2p6nf2Fo_(7/2) (n>4) for Ni XVIII are calculated by this method. The calculated results are in good agreement with the experimental results.
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