Effect of oxygen vacancies on charge ordered structure in YFe 2O4-δ

Shigeo Mori, Satoshi Shinohara, Yoji Matsuo, Yoichi Horibe, Kenji Yoshii, Naoshi Ikeda

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effect of oxygen vacancies on the charge ordered structure at room temperature (RT) in YFe2O4-δ was investigated by transmission electron microscopy (TEM) and it was found that the charge ordered structure is sensitive to the amount of oxygen vacancies. Real-space images of the three-dimensional charge ordered structure revealed that the average size of charge ordered domains can be estimated to be 20nm. These nanosized charge ordered domains are responsible for the dielectric properties of YFe 2O4-δ. The charge ordering processes were also examined by in-situ TEM.

Original languageEnglish
Pages (from-to)7595-7598
Number of pages4
JournalJapanese journal of applied physics
Volume47
Issue number9 PART 2
DOIs
Publication statusPublished - Sep 19 2008

Keywords

  • Charge ordering
  • Multiferroic material
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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