Valence-Bond Crystal and Anisotropic Excitation Spectrum on 3-Dimensionally Frustrated Pyrochlore.
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- Isoda Makoto
- Department of Physics, Fukuyama University, Fukuyama 729–0292
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- Mori Shigeyoshi
- Department of Physics, Fukuyama University, Fukuyama 729–0292
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説明
The valence-bond crystal is proposed as a ground state of spin-1/2 Heisenberg antiferromagnet on 3-dimensional fully frustrated pyrochlore by the bond-operator theory. This crystal, formed as a set of RVB-like tetrahedral singlet states, has lower energy than the state consisting of two dimers in a tetrahedron. The spectra of triplet excitation have a finite gap and a symmetry lower than that of the lattice. The comparison with Y(Sc)Mn2 is discussed.
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 67 (12), 4022-4025, 1998
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
- 1390001204182573184
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- NII論文ID
- 210000101305
- 110001970730
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1998JPSJ...67.4022I
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 1523410
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可