Possibility of magnetoelectric effect in antiferromagnetic rfe2o4

Naoshi Ikeda, Kazuhiro Saito, Kay Kohn

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We report the magnetoelectric effect of a polycrystalline sample of a triangular Ising antiferromagnet ErFe2O4-8, in which the existence of short range charge ordering was inferred from the neutron and dielectric studies. The sign of the magnetoelectric signal was reversed at 77 K, when the electric or magnetic field was applied in the opposite directions during cooling the specimen down to 77 K. The sign of the signal was independent of the direction of the static bias magnetic field in the range above 150 K. The signal was maximum at 183 K. We suggest a relation between the origin of the magnetoelectric effect and the dielectric relaxation due to an electron hopping between Fe3+ and Fe2+ sites.

Original languageEnglish
Pages (from-to)111-115
Number of pages5
JournalFerroelectrics
Volume161
Issue number1
DOIs
Publication statusPublished - Jan 1994
Externally publishedYes

Keywords

  • ErFe2o4
  • RFe2o4
  • charge order
  • dielectric relaxation
  • electron hopping
  • magnetoelectric effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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