Interpretation of rare-earth ion yields using an effective potential approach
| Autor: | Sami Heinäsmäki, G Kutluk, T. Åberg |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Physics
Resonance Electron Photoionization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics 7. Clean energy 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas Ion Ionization Giant resonance 0103 physical sciences Atomic physics 010306 general physics Wave function Excitation |
| Zdroj: | Journal of Physics B: Atomic, Molecular and Optical Physics. 31:L775-L781 |
| ISSN: | 1361-6455 0953-4075 |
| DOI: | 10.1088/0953-4075/31/19/004 |
| Popis: | We use a simple potential well model to study the giant resonances in Ce, Sm, Eu and Gd. We show that photoionization of a d electron in a spherical potential well into a short-lived quasibound f state produces the observed asymmetric ion yield curves. In our approach a suitable normalization condition is applied to the final state wavefunction inside the well and it is assumed that the f electron escapes within a very short time from the well. We further show that our three-parameter model allows the resonance profiles to be parametrized according to the Fano profile of the photoionization cross section. |
| Databáze: | OpenAIRE |
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