Photoemission and hartree-fock studies of oxygen-hole ordering in charge-disproportionated La1-xSrxFeO3

J. Matsuno, T. Mizokawa, A. Fujimori, K. Mamiya, Y. Takeda, S. Kawasaki, M. Takano

研究成果: Article査読

63 被引用数 (Scopus)

抄録

We have studied the “charge disproportionation” phenomenon in La1-xSrxFeO3 by photoemission spectroscopy and unrestricted Hartree-Fock band-structure calculations. We find a systematic decrease of the spectral intensity near Fermi level (EF) toward x=0.67, where the charge disproportion is most stabilized. The spectra for x=0.67 show the clearest temperature-dependent changes in the vicinity of EF across the transition corresponding to the charge ordering of “Fe3+”:“Fe5+”=2:1. The Hartree-Fock calculations indicate that ordering of oxygen holes indeed occurs in the charge disproportionated state.

本文言語English
ページ(範囲)4605-4608
ページ数4
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
60
7
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
  • 凝縮系物理学

フィンガープリント

「Photoemission and hartree-fock studies of oxygen-hole ordering in charge-disproportionated La<sub>1-x</sub>Sr<sub>x</sub>FeO<sub>3</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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