Abstract
The effects of the 4f25d configuration on the intraconfigurational electric dipole transitions of Nd3+ doped YPO4 are taken into account by a ‘direct’ calculation. A simple model is applied to analyze the opposite-parity4f25d configurationadmixing into 4f3 transitional states. The matrix elements of the odd-rank crystal-field interaction and theinterconfigurational electric dipole transition are directly expressed using a standard tensoroperator method. A set of selection rules for f–d mixing and f–f electric dipoletransitions is built up. The admixture effect is considered including both explicit4f25d configuration and other opposite-parity states such as the4f2n′g configuration which is treated by a closure procedure. Using this calculation method incombination with the experimental data from the absorption spectrum, a set of intensityparameters is obtained. The transition intensities originating from the high-lying2G9/2(2) level to the lower energy levels are then calculated, demonstrating a good agreement with theexperimental results. The new calculation method is suitable for the electric dipole transitions withinthe 4fN configurations of trivalent lanthanide ions with more than two f-electrons.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call