Abstract The transition energies and the dipole oscillator strengths for the 1s22s--1s2np (2≤n≤9) and 1s22p--1s2nd (3≤n≤9) of lithium-like Sc18+ ion are calculated by using the full core plus correlation method. The fine structure splittings of 1s2np and 1s2nd (n ≤9) states are determined from the expectation values of spin-orbit and spin-other-orbit interaction operators. The quantum defects of these series, as function of principal quantum number n, are obtained. The agreement between the f-values obtained from three alternative formulae is excellent. Comparisons of our results with experimental data available in the literature are carried out.Combining the single-channel quantum defect theory with the discrete oscillator strengths obtained in this work, this paper obtains the behaviour of discrete oscillator strengths and oscillator strength densities corresponding to the bound-free transitions adjacent to ionization threshold.
Received: 23 February 2005
Revised: 18 March 2005
Accepted manuscript online:
(Calculations and mathematical techniques in atomic and molecular physics)
Fund: Project supported by the NationalNatural Science Foundation of China (Grand No 10474029).
Cite this article:
Wang Zhi-Wen (王治文), Yang Di (杨迪), Hu Mu-Hong (胡木宏), Han Qiu-Ju (韩秋菊), Li Jin-Ying (李金英) Transition energy and oscillator strength of Sc18+ ion 2005 Chinese Physics 14 1559
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.