Electronic structure and magnetic states i studied by photoemission and x-ray-absorption spectroscopy

T. Saitoh, T. Mizokawa, A. Fujimori, M. Abbate

研究成果: Article査読

156 被引用数 (Scopus)

抄録

We have studied the effects of hole doping on the electronic structure of La(Formula presented)Sr(Formula presented)CoO(Formula presented) by photoemission and x-ray-absorption spectroscopy. The Co 2(Formula presented) core-level and the valence-band spectra show charge-transfer satellites, which have been more obviously observed in 3(Formula presented)-3(Formula presented) resonant-photoemission spectra. By Sr substitution for La in LaCoO(Formula presented), the valence-band spectra do not show rigid-band behavior but change systematically and reflect the semiconductor-to-metal transition which occurs with hole doping. Only small changes with (Formula presented) have been observed in the resonant-photoemission spectra. Combined with configuration-interaction cluster-model calculations, this observation suggests that the intermediate-spin state is realized in the ferromagnetic phase.

本文言語English
ページ(範囲)1290-1295
ページ数6
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
56
3
DOI
出版ステータスPublished - 1997 1 1
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

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