Conduction characteristics of charge ordering type ferroelectrics,YFe 2O4

Ken Imamura, Yoichi Horibe, Takeshi Yoshimura, Norifumi Fujimura, Shigeo Mori, Naoshi Ikeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electrical conduction properties of YFe2O4, which is expected to be charge ordering type ferroelectrics, were investigated. YFe 2O4 was synthesized in reduced atmosphere at 1200°C Oxygen partial pressure of the reduced atmosphere was controlled by the equilibrium state of CO and CO2. YFe2O4 is paramagnetic at room temperature and has Néel temperature around 250K. The Néel temperature was decreased with increasing the amount of oxygen deficiency. Moreover, YFe2O4 showed ohmic conduction from 260 to 100 K. From the complex impedance measurements, the equivalent circuits of YFe2O4 with different oxygen deficiency were determined at various temperatures.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages210-216
Number of pages7
Volume966
Publication statusPublished - 2006
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Dec 1 2006

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/27/0612/1/06

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Imamura, K., Horibe, Y., Yoshimura, T., Fujimura, N., Mori, S., & Ikeda, N. (2006). Conduction characteristics of charge ordering type ferroelectrics,YFe 2O4. In Materials Research Society Symposium Proceedings (Vol. 966, pp. 210-216)