Spin-polarized and spin-integrated photoemission study of itinerant ferrimagnetic iron chalcogenides

K. Shimada*, T. Mizokawa, T. Saitoh, K. Mamiya, A. Fujimori, K. Ono, A. Kakizaki, T. Ishii, M. Shirai, T. Kamimura

*この研究の対応する著者

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Itinerant ferrimagnetic metals Fe7S8 and Fe7Se8 and antiferromagnetic semiconductor FeS have been studied by spin-polarized and spin-integrated photoemission and inverse-photoemission spectroscopy. Comparison with the density of states given by band-structure calculations indicates that the Fe 3d band is narrowed with spectral weight transfer towards higher binding energies and that the intensity at the Fermi level is suppressed. The band narrowing and the spectral weight transfer is reproduced by including the self-energy correction, suggesting the importance of electron correlation. Spin-polarized photoemission spectra of Fe7S8 and Fe7Se8 show negative spin-polarization near the Fermi level and spin-dependent correlation effect.

本文言語English
ページ(範囲)317-320
ページ数4
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
78
DOI
出版ステータスPublished - 1996 5
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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