Designations of {ital ds}{sup 2}{ital p} energy levels in neutral zirconium, hafnium, and rutherfordium ({ital Z}=104)

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.53.1911· OSTI ID:279032

Martin, W C; Sugar, J ^[1]

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1. National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)

We have examined available data for the odd-parity energy-level structures in Zr and Hf, stimulated by the designations of four predicted 6{ital d}7{ital s}{sup 2}7{ital p} levels in the homologous atom rutherfordium (Rf, {ital Z}=104) by Eliav {ital et} {ital al}. [Phys. Rev. Lett. {bold 74}, 1079 (1995)]. We point out some errors and deficiencies in the Zr data and give the results of Hartree-Fock calculations for Hf 5{ital d}6{ital s}{sup 2}6{ital p} and Rf 6{ital d}7{ital s}{sup 2}7{ital p} levels. Configuration interactions within the ({ital d}+{ital s}){sup 3}{ital p} complexes were included. The resulting eigenvectors allow meaningful {ital LS}-coupling designations for most of the levels belonging mainly to Hf 5{ital d}6{ital s}{sup 2}6{ital p} and for most of the predicted Rf levels belonging mainly to 6{ital d}7{ital s}{sup 2}7{ital p}. Some changes in the designations assigned to these levels in the literature are suggested: in particular, the lowest level of both Hf 5{ital d}6{ital s}{sup 2}6{ital p} and Rf 6{ital d}7{ital s}{sup 2}7{ital p} is most appropriately designated {sup 3}F{sup {ital o}}{sub 2}. We point out the need for systematic whole-row studies of the low odd-parity configurations in 4{ital d}- and 5{ital d}-shell spectra. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279032
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 53; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
EIGENVECTORS
ENERGY LEVELS
HAFNIUM
HARTREE-FOCK METHOD
L-S COUPLING
P STATES
TRANSPLUTONIUM ELEMENTS
ZIRCONIUM