Spin and charge frustration in magneto-dielectric material

S. Ishihara, M. Naka, J. Nasu

Research output: Contribution to journalConference articlepeer-review


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
Issue number1
Publication statusPublished - 2009
Event4th International Conference on Highly Frustrated Magnetism 2008, HFM 2008 - Braunschweig, Germany
Duration: 2008 Sept 72008 Sept 12


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