COMPARISON OF DIRECT AND JUDD-OFELT-AXE CALCULATIONS OF ELECTRONIC RAMAN-SCATTERING INTENSITIES OF PR3+

A direct calculation is presented of the electronic Raman scattering i ntensities between the crystal field states of the lower multiplet ter ms of Pr3+ in Cs2NaPrCl6. The crystal field states of the intermediate configuration, restricted to 4f(1)5d(1), were employed. The agreement with the alternative calculation using Judd-Ofelt-Axe theory is good, but some discrepancies with experimental results occur for both calcu lations. The direct calculation provides an insight into the transitio n intensity mechanism. The effects on the transition intensities of ch anging the energies of intermediate states are reported. (C) 1997 Else vier Science B.V.