Electronic band structure of AlB2 studied by angle-resolved photoemission spectroscopy

S. Souma, T. Sato, T. Takahashi, N. Kimura, H. Aoki

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We have performed UV and X-ray angle-resolved photoemission spectroscopy (ARPES) on AlB2 which is a non-superconducting reference of MgB 2. We found that the \sigma-band is totally occupied in AlB 2 in contrast to the partially occupied \sigma-band in MgB 2, which suggests that the \sigma-band on the Fermi level is essential for the superconductivity. We also found an electron pocket centered at the Γ (A) point in the UVARPES spectrum as in MgB2, while it is absent in the X-ray ARPES spectra. This indicates that the electron pocket is of surface origin.

本文言語English
ページ(範囲)545-547
ページ数3
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
144-147
DOI
出版ステータスPublished - 2005 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 放射線
  • 原子分子物理学および光学
  • 凝縮系物理学
  • 分光学
  • 物理化学および理論化学

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