High-resolution angle-resolved photoemission study of UN and USb; Dual character of 5f electrons

T. Ito, H. Kumigashira, S. Souma, T. Takahashi, T. Suzuki

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy on UN and USb to study the electronic structure near the Fermi level (EF) and the nature of U 5f electrons. We found that the pnictogen (N and Sb) p bands are fully occupied in contrast with Ce monopnictides and shows a good qualitative agreement with the band calculation by treating the U 5f states as bands. On the other hand, we have not observed dispersive U 5f bands near EF predicted by the band calculation, instead we found two non-dispersive bands near EF, which are assigned as the 5f2-final-state multiplet indicative of localized U 5f states. The intensity of multiplet structure is stronger in USb than in UN. These results indicate the dual character of U 5f electrons and its difference between USb and UN.

Original languageEnglish
Pages (from-to)68-69
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume226-230
Issue numberPART I
DOIs
Publication statusPublished - 2001 Jan 1

Keywords

  • Actinide compounds
  • Band structure
  • Photoemission

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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