A Fully Relativistic Approach to Photon Scattering and Photoionization of Alkali Atoms
| Autor: | Igor Bray, Robert McEachran, Adam Singor, Dmitry V. Fursa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
raman
Nuclear and High Energy Physics Dirac (software) alkali chemistry.chemical_element QC770-798 Photoionization 01 natural sciences Rubidium Cross section (physics) symbols.namesake Nuclear and particle physics. Atomic energy. Radioactivity 0103 physical sciences Physics::Atomic and Molecular Clusters Physics::Atomic Physics Rayleigh scattering 010306 general physics 010303 astronomy & astrophysics photoionization rayleigh Physics Scattering Condensed Matter Physics Atomic and Molecular Physics and Optics photon scattering chemistry symbols Lithium Atomic physics Relativistic quantum chemistry |
| Zdroj: | Atoms Volume 9 Issue 3 Atoms, Vol 9, Iss 42, p 42 (2021) |
| ISSN: | 2218-2004 |
| DOI: | 10.3390/atoms9030042 |
| Popis: | A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based B-spline R-matrix calculations of Zatsarinny and Tayal and recent experimental results. |
| Databáze: | OpenAIRE |
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