• help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Return to the previous page

Electronic ferroelectricity from charge ordering in RFe$$_{2}$$O$$_{4}$$

Ikeda, Naoshi*; Matsuo, Yoji*; Mori, Shigeo*; Yoshii, Kenji  

We report our recent discovery of novel ferroelectricity arising from the polar ordering of Fe$$^{3+}$$ and Fe$$^{2+}$$ in a mixed valence triangular lattice oxide LuFe$$_{2}$$O$$_{4}$$, where the electric polarization is not a result of ionic displacement. The polar ordering of Fe$$^{3+}$$ and Fe$$^{2+}$$ was confirmed with a resonant X-ray scattering study in SPring-8. The origin of such ordering is the competitive interaction between Fe$$^{3+}$$ and Fe$$^{2+}$$ in the triangular lattice, i.e., the charge frustration. The polar superlattice of Fe$$^{3+}$$ and Fe$$^{2+}$$ develops below 350 K, where the electric polarization appears. The ferroelectricity arising from the polar charge ordering or the polar electron distribution may have great potential for the future application of ferroelectrics.

Language

 :

English

Journal

 :

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control

Volume

 :

55

Number

 :

5

Pages

 :

p.1043 - 1045

Publication Year/Month

 :

2008/05

Meeting title

 :

Held date

 :

Location (city)

 :

Location (country)

 :

Patent information

 :

PDF

 :


Paper URL

 :

DOI for research data

 :

Keywords

 :

no keyword

Research Facility

 :

Press Release

 :

Article of JAEA R&D Review

 :

Cooperating Institute

 :

Accesses

 :

- Accesses

InCites™

 :

Altmetrics

 :

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.

Return to the previous page