Photoemission study of electron correlation in M7X8 (M=Fe, Co; X=S, Se)

K. Shimada*, T. Mizokawa, A. Fujimori, M. Shirai, T. Kamimura

*この研究の対応する著者

研究成果: Article査読

5 被引用数 (Scopus)

抄録

The occupied and unoccupied states of ferrimagnetic metals Fe7S8 and Fe7Se8, and a paramagnetic metal Co7Se8 have been studied by photoemission and X-ray inverse photoemission spectroscopies. Compared with the density of states (DOS) given by the band-structure calculation, the photoemission spectra of Fe 3d and Co 3d are narrowed. While the Fe 3d photoemission spectrum has a strong intensity at the higher binding energy side, it is significantly suppressed near the Fermi level. Self-energy corrections to the DOS's have been done for Fe7Se8 and Co7Se8. Disagreements between experimental and theoretical spectra have become small, indicating the importance of electron correlation effect.

本文言語English
ページ(範囲)777-781
ページ数5
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
101-103
DOI
出版ステータスPublished - 1999
外部発表はい

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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