Band structure of UPd3 studied by ultrahigh-resolution angle-resolved photoemission spectroscopy

T. Ito, Hiroshi Kumigashira, Seigo Soma, Takashi Takahashi, Y. Haga, Y. Tokiwa, Y. Onuki

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12 Citations (Scopus)

Abstract

We have performed ultrahigh-resolution angle-resolved photoemission spectroscopy on UPd3 to study the band structure near the Fermi level (EF) and the Fermi surface. We found three Fermi surfaces (FS's): two hole pockets with a dominant Pd 4d character at the Γ (A) point and an electron pocket with a U 6d nature at the K (H) point. These FS's are qualitatively well reproduced in the band structure calculation based on the localized U-5f-electron model, while remarkable quantitative discrepancies are observed near EF. The U 5f states are located 0.4-1.0 eV below EF and do not contribute to the Fermi surface. These results indicate the strongly localized nature of U 5f electrons in UPd3.

Original languageEnglish
Article number245110
Pages (from-to)2451101-2451106
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number24
Publication statusPublished - 2002 Dec 15

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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