Photoemission study of an f-electron superconductor: CeRu2

J. S. Kang, C. G. Olson, M. Hedo, Y. Inada, E. Yamamoto, Y. Haga, Y. Onuki, S. K. Kwon, B. I. Min

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22 Citations (Scopus)

Abstract

Photoemission study has been performed for a high-quality single crystal of CeRu2, including resonant photoemission near the Ce 4d4f absorption edge and high-resolution photoemission at a low-photon energy. Resonant photoemission study provides evidence for the large hybridization between Ce 4f and conduction electrons, indicating mixed-valence in CeRu2. It is found that the line shape of the high-resolution spectrum near the Fermi level depends on the experimental conditions and the sample surface treatment. Comparison of photoemission data to the calculated density of states reveals that band calculations provide a reasonably good description of the electronic structure of CeRu2.

Original languageEnglish
Pages (from-to)5348-5353
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number8
DOIs
Publication statusPublished - Jan 1 1999
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Kang, J. S., Olson, C. G., Hedo, M., Inada, Y., Yamamoto, E., Haga, Y., Onuki, Y., Kwon, S. K., & Min, B. I. (1999). Photoemission study of an f-electron superconductor: CeRu2. Physical Review B - Condensed Matter and Materials Physics, 60(8), 5348-5353. https://doi.org/10.1103/PhysRevB.60.5348