Linda Hamonou and Alan Hibbert 2008 J. Phys. B: At. Mol. Opt. Phys. 41 245004 doi:10.1088/0953-4075/41/24/245004
Linda Hamonou1,2 and Alan Hibbert1
Show affiliationsIn the present study, we investigate the static and frequency-dependent dipole polarizabilities for the ground state of neutral Mg and four ions of the magnesium sequence: Al+, Si2+, P3+ and S4+. The wavefunctions are written in terms of configuration interaction (CI) expansions. Radial functions of orbitals up to n = 9 are used in the calculations, some optimized on the polarizability, some on the energies of low-lying states. We present a detailed study of the convergence of the results as the size of the CI expansions is increased. A very satisfactory degree of stability is achieved.
32.10.Dk Electric and magnetic moments, polarizabilities
31.15.ve Electron correlation calculations for atoms and ions: ground state
Issue 24 (28 December 2008)
Received 1 October 2008, in final form 9 November 2008
Published 5 December 2008
Linda Hamonou and Alan Hibbert 2008 J. Phys. B: At. Mol. Opt. Phys. 41 245004
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