Possibility of formation of rare-earth negative ions by attachment of [ital f] electrons to the atomic ground state

Journal Article · Tue Jun 01 00:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.5198· OSTI ID:6461384

Datta, D; Beck, D R ^[1]

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1. Physics Department, Michigan Technological University, Houghton, Michigan 49931 (United States)

Some recent experiments indicate that certain rare-earth negative ions exist. Some local-density calculations indicate that attachment of [ital f] electrons is most favorable for Tm and Md. Here we investigate by means of relativistic configuration-interaction methods whether Tm[sup [minus]] 4[ital f][sup 14] and Md[sup [minus]] 5[ital f][sup 14] are bound. Our results strongly suggest that they are not, and that a different attachment process (perhaps that of a [ital p] electron, as recently proposed by Vosko and Chevary [Bull. Am. Phys. Soc. 37, 1089 (1992)]) must be contemplated.

• OSTI ID: 6461384
• Journal Information: Physical Review A; (United States), Vol. 47:6; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
MENDELEVIUM
ELECTRON ATTACHMENT
THULIUM
AFFINITY
ANIONS
ELECTRONIC STRUCTURE
F STATES
GROUND STATES
PERTURBATION THEORY
ACTINIDES
CHARGED PARTICLES
ELEMENTS
ENERGY LEVELS
IONS
METALS
RARE EARTHS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
664100* - Theory of Electronic Structure of Atoms & Molecules- (1992-)