https://doi.org/10.1007/s100530050105
The hyperfine structure of the 1s2ns2S and 1s2np2P states (n = 2,3,4, and 5) for the lithium isoelectronic sequence
Institute of Atomic and Molecular Physics,
Jilin University,
Changchun 130023, P.R. China
Corresponding author: a Mailer-Daemon@mail.jlu.edu.cn
Received:
1
July
1997
Revised:
6
October
1997
Accepted:
29
January
1998
Published online: 15 April 1998
The non-relativistic hyperfine structure parameters, the Fermi contact, the spin-dipolar, the orbital and the electronic quadrupole terms, of the
lithium-like ground state and low-lying states,
and 
(n=2, 3, 4, and 5), are calculated with the full core plus
correlation (FCPC) wave functions. With the 794- and 1185-term Slater-type
expansions, the Fermi contact interactions of the 
and 
states in 
are determined to be 2.90313 a.u. and
-0.21359 a.u., respectively. By using the global identities, the
Fermi contact term is also given for the ground state in LiI.
The typical patterns of convergence of the expectation values of the
Fermi contact interaction for the
lithium 
and
states are analyzed. The contribution from the
core polarization is examined. The calculated results of the
lithium-like systems from LiI to NeVIII are compared with the
previous theoretical results obtained with other methods, and with the
experimental data available in the literature.
PACS: 31.15.Ar – Ab initio calculations / 31.30.Gs – Hyperfine interactions and isotope effects
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
