[13p-2M-1~14] New approach to the next-generation device using multinary compounds -- novel fields of solar cells, thermoelectric materials, magnetic-dielectric materials --

[13p-2M-8] Possible Application of Charge Order Iron Compound for Solar Cell

〇Naoshi Ikeda¹, Kosuke Fujiwara¹, Tatsuo Fujii¹, Jun Kano¹ (1.Grad. Sch., Okayama Univ.)

Keywords:RFe2O4

We will report the physical properties of rare-earth ferrite RFe2O4 which has the ordering of Fe2+ and Fe3+ at room temperature. The ordering is considered to emerge from the competing interactions between spin, charge and orbital of iron d-electron on triangular lattice. As the ordering is robust till 500K, it is considered that weak stimulation can easily disarrange the charge ordering. We report out trial to utilize this `sensitive ordered electrons` to optical devices.