Angle-resolved photoemission spectroscopy of perovskite-type transition-metal oxides and their analyses using tight-binding band structure

H. Wadati, T. Yoshida, A. Chikamatsu, H. Kumigashira, M. Oshima, H. Eisaki, Z. X. Shen, T. Mizokawa, A. Fujimori

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Nowadays it has become feasible to perform angle-resolved photoemission spectroscopy (ARPES) measurements of transition-metal oxides with three-dimensional perovskite structures owing to the availability of high-quality single crystals of bulk and epitaxial thin films. In this article, we review recent experimental results and interpretation of ARPES data using empirical tight-binding band-structure calculations. Results are presented for SrVO3 (SVO) bulk single crystals and La1-xSrxFeO3 (LSFO) and La1-xSrxMnO3 (LSMO) thin films. In the case of SVO, from comparison of the experimental results with calculated surface electronic structure, we concluded that the obtained band dispersions reflect the bulk electronic structure. The experimental band structures of LSFO and LSMO were analyzed assuming the G-type antiferromagnetic state and the ferromagnetic state, respectively. We also demonstrated that the intrinsic uncertainty of the electron momentum perpendicular to the crystal surface is important for the interpretation of the APRES results of three-dimensional materials.

Original languageEnglish
Pages (from-to)617-635
Number of pages19
JournalPhase Transitions
Volume79
Issue number8
DOIs
Publication statusPublished - 2006 Aug 1
Externally publishedYes

Keywords

  • Angle-resolved photoemission spectroscopy
  • Band-structure calculation
  • Thin films
  • Transition-metal oxides

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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