Structure transition and charge competition on YFe2O4

Naoshi Ikeda, Ryosuke Mori, Shigeo Mori, Kay Kohn

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We report the low temperature charge ordered structure and magnetic relaxation in nearly stoichiometric YFe 2 O 4 in which the charge frustration effect is considered to be dominant. The superlattice reflections have revealed the presence of four different phases with a triple, double, quadruple and septuplex charge-superstructure in the temperature range from room temperature to 130 K. The observed successive transitions have been proposed by a previous X-ray powder diffraction study. A slow relaxation of the superstructure was found at 130 K. Time dependence of the magnetic moment was observed at about 240 K to suggest a similar relaxation.

Original languageEnglish
Pages (from-to)175-184
Number of pages10
JournalFerroelectrics
Volume286
DOIs
Publication statusPublished - Jun 1 2003
Externally publishedYes

Keywords

  • Charge frustration
  • Charge order
  • Competing interaction
  • Frustration
  • Iron oxide
  • RFeO
  • Triangular lattice
  • YFeO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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