Magnetic dipole transitions as standards for Judd--Ofelt parametrization in lanthanide spectra
- Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Heverlee (Leuven) (Belgium)
- Argonne National Laboratory, Argonne, Illinois (USA)
It is shown that the sum of the intensities for magnetic dipole transitions between crystal-field components of two free-ion levels in lanthanide spectra is almost independent of the symmetry of the environment. A mean theoretical sum value of 18{times}10{sup {minus}7}D{sup 2}, 94{times}10{sup {minus}7}D{sup 2}, and 9{times}10{sup {minus}7}D{sup 2} for, respectively, the {sup 5}{ital D}{sub 1}{l arrow}{sup 7}{ital F}{sub 0}, {sup 5}{ital D}{sub 0}{l arrow}{sup 7}{ital F}{sub 1}, and {sup 5}{ital D}{sub 2}{l arrow}{sup 7}{ital F}{sub 1} dipole strengths has been found. Experimental values of the dipole strength for Eu{sup 3+} in different lattices support within reasonable limits the theoretically derived sum rule. We therefore propose to use these magnetic dipole transitions in the Eu{sup 3+} spectrum as standards for further Judd--Ofelt parametrization.
- OSTI ID:
- 5481867
- Journal Information:
- Journal of Chemical Physics; (United States), Vol. 95:5; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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