Ferroelectricity from Ordering of Fe Valences in the Rare-Earth Iron Oxides RFe2O4 (R=Y, Ho-Lu)
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- YOSHII Kenji
- Japan Atomic Energy Agency
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- IKEDA Naoshi
- Dept. Phys. Okayama University
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- MATSUO Yoji
- Osaka Prefecture University, Department of Physical Science
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- MORI Shigeo
- Osaka Prefecture University
Bibliographic Information
- Other Title
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- 希土類‐鉄酸化物ＲＦｅ２Ｏ４の示す新規な強誘電性（Ｒ＝Ｙ，Ｈｏ‐Ｌｕ）
- 希土類-鉄酸化物RFe2O4の示す新規な強誘電性(R=Y,Ho-Lu)
- キドルイ テツ サンカブツ RFe2O4 ノ シメス シンキ ナ キョウ ユウデンセイ R Y Ho Lu
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Abstract
The rare-earth iron oxides RFe2O4 (R = Y, Ho-Lu) have a rhombohedral crystal structure, consisting of an alternating stacking of triangular lattices of R, Fe and O ions. Recently, we have proposed that this system shows a new mechanism of ferroelectricity ; the ferroelectric state originates from a polar charge-ordered structure of Fe2+ and Fe3+ on a triangular lattice. In this article, a review is given on the details of this ferroelectricity, which were revealed by measurements of synchrotron X-ray diffraction and dielectric properties of one of the RFe2O4 oxides, LuFe2O4.
Journal
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- Nihon Kessho Gakkaishi
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Nihon Kessho Gakkaishi 51 (2), 162-168, 2009
The Crystallographic Society of Japan
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Details 詳細情報について
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- CRID
- 1390001204086888192
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- NII Article ID
- 10024820703
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- NII Book ID
- AN00188364
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- COI
- 1:CAS:528:DC%2BD1MXms1ynu70%3D
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- ISSN
- 18845576
- 03694585
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- NDL BIB ID
- 10301449
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
