Charge Ordering in the Geometrically Frustrated Spinel AlV2O4.
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- Matsuno Ken-ichiro
- Department of Advanced Materials Science, University of Tokyo, Tokyo 113-8656
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- Katsufuji Takuro
- Department of Advanced Materials Science, University of Tokyo, Tokyo 113-8656 Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation
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- Mori Shigeo
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551
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- Moritomo Yutaka
- Center for Integrated Research in Science and Engineering (CIRSE), Nagoya University, Nagoya 464-8601
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- Machida Akihiko
- Department of Crystalline Materials Science, Nagoya University, Nagoya 464-8603
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- Nishibori Eiji
- Department of Applied Physics, Nagoya University, Nagoya 464-8603
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- Takata Masaki
- Department of Applied Physics, Nagoya University, Nagoya 464-8603
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- Sakata Makoto
- Department of Applied Physics, Nagoya University, Nagoya 464-8603
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- Yamamoto Naoki
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551
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- Takagi Hidenori
- Department of Advanced Materials Science, University of Tokyo, Tokyo 113-8656 Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation
Bibliographic Information
- Other Title
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- Charge Ordering in the Geometrically Frustrated Spinel AlV<sub>2</sub>O<sub>4</sub>
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Abstract
We have found that spinel AlV2O4 shows a phase transition at ∼700 K with anomalies of transport and magnetic properties. It is clarified that this corresponds to a charge-ordering transition, where the V2.5+ ions are separated into three V2.5-δ ions and one V2.5+3δ ion. This three-one type of charge ordering, which is coupled with rhombohedral distortion along the (111) axis, reduces the high degeneracy of ground states inherent in this spinel structure, and thus can be understood in terms of “charge frustration.”
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 70 (6), 1456-1459, 2001
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204181958784
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- NII Article ID
- 210000103074
- 110001979021
- 130004537826
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- NII Book ID
- AA00704814
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- BIBCODE
- 2001JPSJ...70.1456M
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 5829792
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed