Photoemission insight into heavy-fermion behavior in YbRh2Si2
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
As shown by angle-resolved photoemission (PE), hybridization of bulk Yb 4f(2+) states with a shallow-lying valence band of the same symmetry leads in YbRh2Si2 to dispersion of a 4f PE signal in the region of the Kondo resonance with a Fermi-energy crossing close to (Gamma) over bar. Additionally, renormalization of the valence state results in the formation of a heavy band that disperses parallel to the 4f originating signal. The symmetry and character of the states are probed by circular dichroism and the photon-energy dependence of the PE cross sections.
Details
Originalsprache | Englisch |
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Aufsatznummer | 056402 |
Seitenumfang | 4 |
Fachzeitschrift | Physical review letters |
Jahrgang | 100 |
Ausgabenummer | 5 |
Publikationsstatus | Veröffentlicht - 8 Feb. 2008 |
Peer-Review-Status | Ja |
Externe IDs
PubMed | 18352399 |
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Scopus | 38949138525 |
Schlagworte
Schlagwörter
- Optically-active molecules, Circular-dichroism, Angular-distribution, Liquid behavior, Ce compounds, Electron, Photoelectrons, States, Photoionization, Metal