Photoemission Study of the Itinerant Helimagnetic MnSi

Jin Young Son*, Kozo Okazaki, Takashi Mizokawa, Atsushi Fujimori, Takeshi Kanomata, Ryunosuke Note

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

We have studied the electronic structure of MnSi, which shows a helical spin ordering below 30 K, by ultraviolet photoemission spectroscopy. We have attempted to separate the spectra into surface and bulk components by considering the electron mean-free path and the thickness of the outermost atomic layer. The 'bulk' spectra thus obtained are compared with the density of states given by band-structure calculation corrected for model self-energies and reasonable agreement was obtained. This indicates that both band structure and electron correlation effects are important to understand the physical properties of MnSi. The spectra in the entire valence-band region do not show appreciable temperature dependence, but the spectral weight in the vicinity of the Fermi level is slightly decreased with decreasing temperature, which we tentatively attribute to the exchange splitting of the Mn 3d bands.

本文言語English
ページ(範囲)1728-1731
ページ数4
ジャーナルjournal of the physical society of japan
71
7
DOI
出版ステータスPublished - 2002 7 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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