Conduction characteristics of charge ordering type ferroelectrics,YFe 2O4

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

doi:10.1557/proc-0966-t07-27

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 proceeding › Conference 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 language	English
Title of host publication	Ferroelectrics and Multiferroics
Publisher	Materials Research Society
Pages	210-216
Number of pages	7
ISBN (Print)	9781604234183
DOIs	https://doi.org/10.1557/proc-0966-t07-27
Publication status	Published - Jan 1 2006
Event	2006 MRS Fall Meeting - Boston, MA, United States Duration: Nov 27 2006 → Dec 1 2006

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	966
ISSN (Print)	0272-9172

Other

Other	2006 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	11/27/06 → 12/1/06

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/proc-0966-t07-27

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 Ferroelectrics and Multiferroics. Materials Research Society Symposium Proceedings, vol. 966, Materials Research Society, pp. 210-216, 2006 MRS Fall Meeting, Boston, MA, United States, 11/27/06. https://doi.org/10.1557/proc-0966-t07-27

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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 N{\'e}el temperature around 250K. The N{\'e}el 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.",

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AU - Imamura, Ken

AU - Horibe, Yoichi

AU - Yoshimura, Takeshi

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AU - Mori, Shigeo

AU - Ikeda, Naoshi

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N2 - 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.

AB - 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.

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