Application of the relativistic randomphase approximation to atoms of the neon isoelectronic sequence
Abstract
The relativistic randomphase approximation is applied to the calculation of excitation energies and oscillator strengths for the 2p^{6} ^{1}S_{0}2p^{5}3s ^{1}P_{1}, ^{3}P_{1} and 2p^{6} ^{1}S_{0}2p^{5}3d ^{1}P_{1}, ^{3}P_{1}, ^{3}D_{1} transitions of elements of the neon isoelectronic sequence. The results are compared with those of other calculations and experiment. The variation of oscillator strength along the isoelectronic sequence is depicted for each of the transitions. Anomalous behavior occurs which is attributed to level crossings.
 Publication:

Physical Review A
 Pub Date:
 September 1979
 DOI:
 10.1103/PhysRevA.20.642
 Bibcode:
 1979PhRvA..20..642S