Spin and charge frustration in magneto-dielectric material

S. Ishihara, Makoto Naka, J. Nasu

Research output: Contribution to journalArticle

Abstract

Electronic, dielectric and magnetic properties in exotic dielectrics, RFe2O4 (R: rare-earth metal ion), are investigated. By analyzing the effective Hamiltonian for Fe 3d electrons, spin and charge correlation functions and electric polarization are calculated by the Monte-Carlo technique. Electric polarization is strongly reinforced below magnetic ordering temperature and is controlled by applying magnetic field. Observed unique magneto-dielectric phenomena are attributed to frustration in a spin-charge coupled system.

Original languageEnglish
Article number012073
JournalJournal of Physics: Conference Series
Volume145
Issue number1
DOIs
Publication statusPublished - 2009
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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