期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 41, 期 24, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/41/24/245004
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资金
- European Social Fund
- STFC [PP/D00103X/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/D00103X/1] Funding Source: researchfish
In 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(+), Si(2+), P(3+) and S(4+). 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.
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