A simple model for $f\to d$ transition of heavy lanthanide and actinide ions in crystals

Details A simple model for $f\to d$ transition of heavy lanthanide and actinide ions in crystals A simple model for $f\to d$ transition of heavy lanthanide and actinide ions in crystals

2005-05-24

arxiv.org/abs/cond-mat/0505591v1

Physics

Condensed Matter

Materials Science

Presented on AMN-2, Queenstown, New Zealand Feb 6-11, 2005; Will appear on Current Applied Physics

Scientific paper

10.1016/j.cap.2005.11.019

The $f\to d$ transition model by Duan and co-workers [Phys. Rev. B {\bf 66}, 155108 (2002); J. Solid State Chem. {\bf 171}, 299 (2003)] has been very useful in interpreting the $f\to d$ absorption, emission and nonradiative relaxation of light lanthanide ions in crystals. However, based on the assumption that the $f^{N-1}$ core spin-orbit interaction is weak compared to $f\to d$ exchange interaction, this model, in the original form, is not applicable to interpretation of the $f\to d$ transitions of heavy lanthanide ions or actinide ions in crystals. In this work the model is extended to cover the cases of heavy lanthanides and actinides, where the spin-orbit interaction of $f$ orbitals may be stronger than the $f-d$ exchange nteraction. Keywords: lanthanide; f-d transition; model; spectrum; actinide; VUV;

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