Temperature-dependent valence-band photoemission spectra oMn

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

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)8836-8840
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number14
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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