Correlation of selected core-level spectroscopies
| Autor: | T.K. Hatwar, D.R. Chopra, H.W. Axe |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Radiation
Chemistry Bremsstrahlung Condensed Matter Physics Atomic and Molecular Physics and Optics Spectral line Electronic Optical and Magnetic Materials Correlation Vacancy defect Core level Physical and Theoretical Chemistry Atomic physics Absorption (electromagnetic radiation) Spectroscopy Excitation |
| Zdroj: | Journal of Electron Spectroscopy and Related Phenomena. 33:141-152 |
| ISSN: | 0368-2048 |
| DOI: | 10.1016/0368-2048(84)80016-x |
| Popis: | Spectral characteristics representing the distribution of unoccupied conduction-band states in the 3 d transition-series metals Fe, Co, Ni and Cu, obtained using soft X-ray absorption (SXA), bremsstrahlung isochromat (BI) and characteristic isochromat (CI) methods, are related mathematically to those found in soft X-ray appearance-potential Spectroscopy (SXAPS) on the basis of the one-electron band approximation. These mathematical relationships are used to compute SXAPS spectra from reported experimental data obtained by the SXA, BI and CI methods. For the metals considered, the correlations between the computed and experimental SXAPS spectra are found to be good. The observed discrepancies are attributed to differences in the selection rules of the excitation processes, to the effect of the core vacancy on the final state, and to many-body phenomena which are not included in the simplified one-electron band model. |
| Databáze: | OpenAIRE |
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