TY - JOUR
T1 - Spin and charge frustration in magneto-dielectric material
AU - Ishihara, S.
AU - Naka, M.
AU - Nasu, J.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/145/1/012073
DO - 10.1088/1742-6596/145/1/012073
M3 - Conference article
AN - SCOPUS:84885650723
SN - 1742-6588
VL - 145
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012073
T2 - 4th International Conference on Highly Frustrated Magnetism 2008, HFM 2008
Y2 - 7 September 2008 through 12 September 2008
ER -