High-resolution angle-resolved photoemission study of CeSb and USb

T. Takahashi, H. Kumigashira, T. Ito, A. Ashihara, H. D. Kim, H. Aoki, A. Ochiai, T. Suzuki

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

High-resolution angle-resolved photoemission spectroscopy (HR-ARPES) has been performed on isostructural CeSb and USb to study the electronic structure near the Fermi level (EF). In CeSb, we observed the hole and electron pockets at the Brillouin-zone (BZ) center and boundary, respectively, as well as the systematic change of the volume upon the temperature-dependent magnetic phase transition (TN = 16 K). The experimental result suggests that the p-f mixing plays an essential role in characterizing the magnetic property of semimetallic CeSb. In USb, on the other hand, we found a large electron pocket at the BZ center consisting of U 6d states and two almost dispersionless U 5f bands just below EF. This illustrates a clear difference in the electronic structure between Ce and U monopnictides as well as the character between 4f and 5f electrons.

Original languageEnglish
Pages (from-to)65-69
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume92
Issue number1-3
DOIs
Publication statusPublished - 1998 May

Keywords

  • Angle-resolved photoemission
  • Ce and U compounds
  • Electronic structure
  • Fermi surface

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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