Strong localization of doped holes in La1-x Srx FeO3 from angle-resolved photoemission spectra

H. Wadati, A. Chikamatsu, M. Takizawa, R. Hashimoto, H. Kumigashira, T. Yoshida, T. Mizokawa, A. Fujimori, M. Oshima, M. Lippmaa, M. Kawasaki, H. Koinuma

研究成果: Article査読

23 被引用数 (Scopus)

抄録

We have performed an angle-resolved photoemission spectroscopy study of La0.6 Sr0.4 FeO3 using in situ prepared thin films and determined its band structure. The experimental band dispersions could be well explained by an empirical band structure assuming the G -type antiferromagnetic state. However, the Fe 3d bands were found to be shifted downward relative to the Fermi level (EF) by ∼1 eV compared with the calculation and to form a gap of ∼1 eV at EF. We attribute this observation to a strong localization effect of doped holes due to polaron formation.

本文言語English
論文番号115114
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
74
11
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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