Co-L 3 X-ray absorption near-edge structure analysis of Pr 1-xCa xCoO 3-δ and Pr 1-xSr xCoO 3-δ

Tsuyoshi Yoshioka, Tomoyuki Yamamoto*, Akihiko Kitada

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The valence state of Co ions in Pr 1-xCa xCoO 3-δ and Pr 1-xSr xCoO 3-δ has been investigated by an analysis of the Co-L 3 X-ray absorption near-edge structure (XANES) profile. The observed intensity distributions of Co-L 3 XANES change continuously with increasing concentration of alkaline-earth ions. To investigate the origin of this change in the XANES profile, charge transfer multiplet calculations were carried out, which could successfully explain the change in the spectral profile; they also suggest that the valence state of Co ions in Pr 1-xCa xCoO 3-δ and Pr 1-xSr xCoO 3-δ is between 3 and 4 and increases gradually with the concentration of alkaline-earth ions.

本文言語English
ページ(範囲)4114-4116
ページ数3
ジャーナルPhysica B: Condensed Matter
407
21
DOI
出版ステータスPublished - 2012 11月 1

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
  • 電子工学および電気工学

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