Unusual mass renormalization in FeSi studied by high-resolution photoemission

T. Saitoh, A. Sekiyama, T. Mizokawa, A. Fujimori, K. Ito, H. Nakamura, M. Shiga

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

We have studied the electronic structure of FeSi by high-resolution photoemission. At room temperature the spectra show no energy gap while a gap opening was observed below ∼150 K accompanied by the gradual paramagnetic-to-nonmagnetic transition. From analysis of the spectral lineshape using a model self-energy, we find that considerable band narrowing occurs near the band edge, probably due to electron correlation, giving a qualitative explanation to the unusual electronic and magnetic properties.

Original languageEnglish
Pages (from-to)307-311
Number of pages5
JournalSolid State Communications
Volume95
Issue number5
DOIs
Publication statusPublished - 1995 Aug
Externally publishedYes

Keywords

  • A. semiconductors
  • D. electron-electron interactions
  • E. photoelectron spectroscopies
  • electronic band structure

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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