Spectroscopic studies and crystal-field analysis of Cm{sup 3+} and Gd{sup 3+} in LuPO{sub 4}

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.12668· OSTI ID:122310

Sytsma, J; Murdoch, K M; Edelstein, N M ^[1]; Boatner, L A; Abraham, M M ^[2]

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1. Chemical Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
2. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

Optical-absorption and laser-selective-excitation spectroscopy have been used to investigate the electronic energy level structures of the actinide ion Cm{sup 3+} and the lanthanide ion Gd{sup 3+} in host crystals of LuPO{sub 4}. Crystal-field levels have been determined up to 35 000 and 37 000 cm{sup {minus}1}, respectively, for the principal {ital D}{sub 2{ital d}} symmetry substitutional site. These have been analyzed in terms of a parametric Hamiltonian and the two systems compared. High-resolution fluorescence spectroscopy was used to resolve the ground-term splittings of Cm{sup 3+} and these are compared to the zero-field splittings measured in a previous EPR investigation. Some weaker fluorescence features also were observed, which are attributed to minor Cm{sup 3+} sites in the host lattice. Two-photon excitation was observed to the {sup 6}{ital P}{sub 5/2} and {sup 6}{ital P}{sub 7/2} multiplets of Gd{sup 3+}.

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098; AC05-84OR21400
• OSTI ID: 122310
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
CRYSTAL FIELD
CURIUM IONS
ELECTRONIC STRUCTURE
EXCITATION
FLUORESCENCE
GADOLINIUM IONS
LASER SPECTROSCOPY
LUTETIUM PHOSPHATES