Crystal-field states of UO2 probed by directional dependence of nonresonant inelastic x-ray scattering
Nonresonant inelastic x-ray scattering (NIXS) has been performed on single crystals of UO2 to study the directional dependence of higher-order-multipole scattering from the uranium O4,5 edges (90-110 eV). By comparing the experimental results with theoretical calculations the symmetry of the ground...
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| Autori principali: | , |
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| Natura: | Article (Journal) |
| Lingua: | inglese |
| Pubblicazione: |
5 November 2018
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| In: |
Physical review
Year: 2018, Volume: 98, Fascicolo: 20 |
| ISSN: | 2469-9969 |
| DOI: | 10.1103/PhysRevB.98.205108 |
| Accesso online: | Verlag, Volltext: https://doi.org/10.1103/PhysRevB.98.205108 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.98.205108 
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| Note sull'autore: | M. Sundermann, G. van der Laan, A. Severing, L. Simonelli, G. H. Lander, M. W. Haverkort, and R. Caciuffo |
| Riassunto: | Nonresonant inelastic x-ray scattering (NIXS) has been performed on single crystals of UO2 to study the directional dependence of higher-order-multipole scattering from the uranium O4,5 edges (90-110 eV). By comparing the experimental results with theoretical calculations the symmetry of the ground state is confirmed directly as the crystal-field (CF) Γ5 triplet state within the J=4 manifold. The results demonstrate that the directional dichroism of the NIXS spectra is sensitive to the CF strength and establish NIXS as a tool for probing CF interactions quantitatively. |
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| Descrizione del documento: | Die Ziffer 2 im Titel ist tiefgestellt Gesehen am 29.04.2019 |
| Descrizione fisica: | Online Resource |
| ISSN: | 2469-9969 |
| DOI: | 10.1103/PhysRevB.98.205108 |