Neutron Scattering Study of the Charge Ordering and the Spin Ordering of the Magnetically Frustrated Spinel Antierromagnet
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- Oohara Yasuaki
- Neutron Scattering Laboratory, Institute for Solid State Physics, University of Tokyo, Shirakata 106–1, Tokai 319–1106
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- Sugiyama Jun
- Department of Physics, Nagoya University, Furoh–cho, Chikusa–ku, Nagoya 464–0814
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- Kontani Masaaki
- Department of Physics, Nagoya University, Furoh–cho, Chikusa–ku, Nagoya 464–0814
書誌事項
- タイトル別名
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- Neutron Scattering Study of the Charge Ordering and the Spin Ordering of the Magnetically Frustrated Spinel Antiferromagnet.
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説明
Neutron scattering measurements of an antiferromagnet spinel LiMn2O4 were performed using a polycrystalline sample. A bump signal peaked at 1.4, Å-1 appears below 100, K, though the line width of the magnetic diffraction pattern remains broad even at 8, K. Additionally, Mn spins freeze below 60, K. In LiMn2O4, magnetic ions, i.e., Mn3+ and Mn4+, form a network of corner-shared-tetrahedra. The observed magnetic pattern is explained by the following charge and the magnetic ordering. Two Mn3+ ions and two Mn4+ ions randomly distribute on four corners of each tetrahedron. The antiferromagnetic correlation exists only in the arrangements of Mn3+--Mn3+ and Mn4+--Mn4+ and no correlation in Mn3+--Mn4+; this is due to the frustration of spins between the arrangements of Mn3+--Mn3+ and Mn4+--Mn4+.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 68 (1), 242-246, 1999
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390001204181966848
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- NII論文ID
- 110001955223
- 210000101750
- 210000101738
- 130004536776
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1999JPSJ...68..242O
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 4647066
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- 本文言語コード
- en
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