Temperature-dependent valence-band photoemission spectra oMn

T. Saitoh, A. Sekiyama, K. Kobayashi, T. Mizokawa, A. Fujimori, D. Sarma

研究成果: Article査読

55 被引用数 (Scopus)

抄録

We have studied the temperature dependence of the photoemission spectra of La(Formula presented)Sr(Formula presented)MnO(Formula presented)=0.0, 0.2, and 0.4) and found that the spectral line shape dramatically changes in the entire valence-band region, particularly for (Formula presented)=0.2 and 0.4. By contrast, the spectra of La(Formula presented)Sr(Formula presented)CoO(Formula presented) show no significant temperature dependence. From comparison between the temperature- and composition-(Formula presented) dependent spectral changes and the temperature-composition phase diagram of La(Formula presented)Sr(Formula presented)MnO(Formula presented), we suggest that the changes are related to the degree of hole localization on oxygen (Formula presented) orbitals, which is influenced by electron-lattice coupling and magnetic correlations.

本文言語English
ページ(範囲)8836-8840
ページ数5
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
56
14
DOI
出版ステータスPublished - 1997
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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