Theory of hyperfine interactions in lithiumlike systems

Journal Article · Tue Aug 15 04:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.40.1765· OSTI ID:6030406

Panigrahy, S N; Dougherty, R W; Das, T P; Andriessen, J

Using relativistic many-body perturbation theory, we have investigated the valence, exchange core polarization, and correlation contributions to the magnetic hyperfine constants in the ground states of the lithiumlike ions Be/sup +/, B/sup 2+/, C/sup 3+/, N/sup 4+/, O/sup 5+/, F/sup 6+/, Ne/sup 7+/, and Bi/sup 80+/. Radiative corrections have also been investigated. Both the exchange core polarization and the correlation contributions as fractions of the valence-electron contribution decrease rapidly as one goes to more highly charged ions, the decrease being more drastic for the correlation effect. The radiative effect, on the other hand, increases very rapidly with increasing charge, becoming of the same order of magnitude as the correlation effect in O/sup 5+/, F/sup 6+/, and Ne/sup 7+/. For Bi/sup 80+/ the radiative effect is larger than the correlation contribution, being about 0.3% of the hyperfine field from the valence 2/ital s/ electron. The significance of these results and trends will be discussed, and comparisons will be made between the net hyperfine fields obtained in the present work and available experimental results as well as with the results of earlier calculations.

• Research Organization: Department of Physics, State University of New York at Albany, Albany, New York 12222 (US); Technische Natuurkunde, Technische Hogeschool Delft, Delft, The Netherlands
• OSTI ID: 6030406
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 40:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CHARGED PARTICLES
CORRECTIONS
CORRELATIONS
ELECTRON CORRELATION
ENERGY LEVELS
GROUND STATES
HYPERFINE STRUCTURE
IONS
ISOELECTRONIC ATOMS
MULTICHARGED IONS
PARAMETRIC ANALYSIS
PERTURBATION THEORY
RADIATIVE CORRECTIONS
VALENCE