Configuration mixing in Pr and Nd transition-metal compounds
| Autor: | Serguei L. Molodtsov, Günter Behr, M. Heber, M. Finken, Yu. Kucherenko, Clemens Laubschat |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
chemistry.chemical_classification
Quenching Radiation Chemistry Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Divalent Transition metal Valence band Condensed Matter::Strongly Correlated Electrons Physical and Theoretical Chemistry Atomic physics Degeneracy (mathematics) Anderson impurity model Spectroscopy Mixing (physics) |
| Zdroj: | Journal of Electron Spectroscopy and Related Phenomena. 128:45-50 |
| ISSN: | 0368-2048 |
| Popis: | Large energy splittings of several eV of the 4f-derived photoemission signals of Pr–Rh and Nd–Rh compounds are reported. The phenomena are described quantitatively in the framework of the single-impurity Anderson model. The splittings are explained by a hybridization-induced quenching of the energy degeneracy of the bare 4f n −1 configuration with the Rh 4d-derived valence band. Admixtures of several percent of divalent configurations to the trivalent ground-states are concluded. Consideration of such admixtures may be important for the understanding of magnetic anomalies in late transition-metal compounds of these rare-earth elements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect