Abstract

The energy of Li-like states 1s2lnl' regarding to high Rydberg series (n = 2-10) were calculated for ions with a nuclear charge Z = 5-54 by using a perturbation theory method (Z-expansion). Relativistic effects were taken into account by the Breit-Pauli operators. The asymptotic dependence on n for the energy matrix of the 1s2lnl' states was discussed. The intermediate coupling coefficients obtained after diagonalization of energy matrices were studied. It was found that the values of these coefficients are in a strong dependence on the values of n and Z due to redistribution between the contribution of relativistic and correlation effects. It should be noted that the other atomic characteristics such as radiative and nonradiative transition probabilities, branching ratios have a non-monotonous behaviour regarding to the values of Z and n with maxima and minima. Auger and transition energies were compared with other theoretical results and experimental data concerning the 1s2lnl'LSJ (n = 2-7) states for different ions with Z = 6, 7, 8, 16, 17 and 18.

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