Abstract
The 4d → 2p x-ray emission spectra (XES) of rare-earth compounds are calculated with an impurity Anderson model with the full multiplet couplings, following the formula of a coherent second order optical process. Recent experiments are well reproduced with this model by using a constant value for the 4d core hole lifetime damping Γ(4d) in light rare-earth compounds. On the other hand, in heavy rare-earth compounds it is necessary to take into account the term dependence of Γ(4d). The 4f → 4d XES of Dy2O3 is also investigated theoretically. The multiplet term dependence of the 4d core hole lifetime affects more drastically the spectral shape in the 4f → 4d XES than in the 4d → 2p XES. Some theoretical predictions are also given on the coincidence spectra between the 4d-XPS and 4f → 4d XES.
Original language | English |
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Pages (from-to) | 199-202 |
Number of pages | 4 |
Journal | Journal of Electron Spectroscopy and Related Phenomena |
Volume | 79 |
DOIs | |
Publication status | Published - May 1996 |
Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Radiation
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Spectroscopy
- Physical and Theoretical Chemistry