High-resolution photoemission study of UNi2Al3 and URu2Si2

S. H. Yang, H. Kumigashira, T. Yokoya, A. Chainani, N. Sato, T. Komatsubara, S. J. Oh, T. Takahashi

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

High-resolution low-temperature photoemission spectroscopy was performed for UNi2Al3 and URu2Si2 to study the nature of 5f electrons in U-based heavy fermion materials. Photoemission spectra of both compounds have a sharp peak at EF and a large broad peak around 2 eV, while only UNi2Al3 exhibits an additional small broad feature at 0.6 eV. The two features in the vicinity of EF (the EF-peak and the small structure at 0.6 eV) were found to have a dominant U 5f character. Comparison with the band structure calculations and experimental results on UPd2Al3 suggests that the EF-peak is ascribed to itinerant U 5f electrons while the following broad feature at 0.6 eV represents localized f electrons.

原文English
頁(從 - 到)143-145
頁數3
期刊Journal of Electron Spectroscopy and Related Phenomena
78
DOIs
出版狀態Published - 1996 五月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 輻射
  • 原子與分子物理與光學
  • 凝聚態物理學
  • 光譜
  • 物理與理論化學

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