Abstract
The R-matrix method is used to calculate the total photoionization cross-sections from the ground 2s 22p 6 1 S e and the first three excited 2s 22p 53p 3,1 S e states of Al IV, for photon energies ranging from the first ionization threshold to just above the second threshold of the residual ion Al V. The two lowest LS terms of Al V − 2s 22p 5 2 P 0, 2s2p 6 2 S e, 2s2p 6 2 S e, represented by sophisticated configuration interaction wavefunctions, are included in the R-matrix calculation. The resulting cross-sections are affected by Rydberg series of resonances converging to the 2s2p 6 2 S e excited threshold.
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Mohan, M., Le Dourneuf, M., Hibbert, A. et al. Photoionization of Al IV (neon-type) from its ground 2s 22p 6 1 S e and excited 2s 22p 53p 3,1 P 0 3 S e states using the R-matrix method. Pramana - J Phys 53, 733–741 (1999). https://doi.org/10.1007/s12043-999-0108-6
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DOI: https://doi.org/10.1007/s12043-999-0108-6