TY - JOUR
T1 - A Modification of Atomic Orbital Theory and Its Application to $(1snl)^1L^{\pi}$ and $(nl^2)L^{\pi}$ Excited States of He-Like Ions
AU - I. Sakho
JO - Journal of Atomic and Molecular Sciences
VL - 2
SP - 103
EP - 117
PY - 2010
DA - 2010/01
SN - 1
DO - http://doi.org/10.4208/jams.022510.031010a
UR - https://global-sci.org/intro/article_detail/jams/8071.html
KW - atomic orbital theory, screening constant, semi-empirical calculations, excited states, helium-like ions.
AB - <p style="text-align: justify;">A modification of the Slater&#39;s atomic orbital theory (AOT) is 
presented in this paper and applied to the calculation of energies 
for (1$sns$)$^1S^e$, (1$snp$)$^1P^o$, (1$snd$)$^1D^e$ and 
($ns^2$)$^1S^e$, ($np^2$)$^1D^e$, ($nd^2$)$^1G^e$, ($nf^2$)$^1I^e$, 
($ng^2$)$^1K^e$, ($nh^2$)$^1M^e$ excited states of He-like ions up to 
$Z$ = 12. The inadequacy of Slater&#39;s AOT for excited states of the 
atomic systems is discussed. The results obtained in the present work 
are in good agreement with available experimental and theoretical results.</p>