Systematic analysis of the spectra of the lanthanides doped into single crystal LaF/sub 3/

Journal Article · Sat Apr 01 00:00:00 EST 1989 · J. Chem. Phys.; (United States)

OSTI ID:6418127

Carnall, W T; Goodman, G L; Rajnak, K; Rana, R S

The optical spectra of the lanthanides doped into single crystal LaF/sub 3/ have been interpreted in terms of transitions within 4f /sup N/ configurations. Energy matrices combining free-ion terms with a crystal field for an approximate model which assumes C/sub 2//sub v/ instead of the actual C/sub 2/ site symmetry were diagonalized. Excellent correlations were obtained between experimental transition energies and the computed level structures. We also report the results of previously unpublished experimental spectroscopic investigations of Nd/sup 3 +/ and Sm/sup 3 +/:LaF/sub 3/, as well as predicted energy levels for Pm/sup 3 +/:LaF/sub 3/. The spectroscopic data for each ion were independently interpreted using an effective-operator model, then the model parameters were intercompared. Systematic trends have been identified, and a comprehensive energy level diagram is presented.

• Research Organization: Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 6418127
• Journal Information: J. Chem. Phys.; (United States), Vol. 90:7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
74 ATOMIC AND MOLECULAR PHYSICS
LANTHANUM FLUORIDES
ABSORPTION SPECTRA
NEODYMIUM IONS
ENERGY LEVELS
PROMETHIUM IONS
SAMARIUM IONS
CRYSTAL FIELD
DOPED MATERIALS
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
MONOCRYSTALS
SYMMETRY
CHARGED PARTICLES
CRYSTALS
DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IONS
LANTHANUM COMPOUNDS
MATERIALS
NUMERICAL DATA
RARE EARTH COMPOUNDS
SPECTRA
360603* - Materials- Properties
640302 - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory