Ferroelectricity from valence ordering in RFe2O4

Naoshi Ikeda, Shigeo Mori, Kenji Yoshii

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We report a polar ordering of electrons in RFe2O4, which consistently explains the ferroelectric property of this material. Pyroelectric current measurement, low frequency AC dielectric constants, resonant X-ray scattering diffraction experiment and the consideration for the charge frustration, consistently lead the presence of ferroelectricity originated from the ordering of Fe3+ and Fe2+. The ferroelectric material originated from the polar electron distribution and free from the ionic displacement may potentially have great possibilities in future applications and fundamental researches.

Original languageEnglish
Title of host publicationFerroelectrics
Pages38-47
Number of pages10
Volume348
DOIs
Publication statusPublished - 2007
Event8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan
Duration: May 15 2006May 19 2006

Other

Other8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8
CountryJapan
CityTsukuba
Period5/15/065/19/06

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Keywords

  • Charge frustration
  • Charge ordering
  • Dielectric dispersion
  • Frustrated system
  • RFeO
  • Spontaneous polarization
  • Triangular lattice
  • Verwey transition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Ikeda, N., Mori, S., & Yoshii, K. (2007). Ferroelectricity from valence ordering in RFe2O4. In Ferroelectrics (Vol. 348, pp. 38-47) https://doi.org/10.1080/00150190701196112