Szczegóły publikacji
Opis bibliograficzny
Electronic states of $UNi_{2}$ from photoemission spectroscopy / R. ZALECKI, A. KOŁODZIEJCZYK, N.-T. H. Kim-Ngan, A. Kowalczyk, T. Toliński, M. Mihalik, A. Adamska // Acta Physica Polonica. A ; ISSN 0587-4246. — 2008 — vol. 113 no. 1, s. 407–412. — Bibliogr. s. 411–412. — Proceedings of the 13th Czech and Slovak conference on Magnetism : Košice, july 9–12, 2007 / eds. Mária Zentková, Marián Mihalik. — Warsaw : Polish Academy of Sciences. Institute of Physics, 2008
Autorzy (7)
- AGHZalecki Ryszard
- AGHKołodziejczyk Andrzej
- Kim-Ngan Nhu-Tarnawska Hoa
- Kowalczyk Andrzej
- Toliński Tomasz
- Mihalik Marián
- Adamska Anna M.
Dane bibliometryczne
| ID BaDAP | 43208 |
|---|---|
| Data dodania do BaDAP | 2009-02-04 |
| Tekst źródłowy | URL |
| Rok publikacji | 2008 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Acta Physica Polonica, A |
Abstract
We measured the angle-resolved ultraviolet and X-ray photoemission spectra of UNi2 single crystal. The valence band angle-resolved ultraviolet photoemission spectra were compared to the accessible band structure calculations. For UNi2 the lowest binding energy strong emission at about -0.1 eV comes from U 5f states and overlaps with the Fermi edge. A small feature at -0.6 eV was ascribed also to U 5f electrons with more localised character. The higher-energy two-peak structure at about -1.2 eV and -2.1 eV comes from Ni 3d states. X-ray photoemission spectroscopy shows the standard two-line spin-orbit splitting of the Ni 2p states and of the U 4f states. Some hybridisation of the Ni 3d and U 5f state was observed in the spectra. The pronounced satellites to the Ni 2p and 3p states, associated with the on-site Coulomb repulsion and other electron correlation energies, were observed.
