Magnetization Curve and Correlation Function of Haldane-Gap Antiferromagnet in Strong Magnetic Field
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- Takahashi Minoru
- Institute for Solid State Physics, University of Tokyo
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- Sakai Tôru
- Institute for Solid State Physics, University of Tokyo
書誌事項
- タイトル別名
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- Magnetization Curve and Correlation Fun
- 公開日
- 1991
- DOI
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- 10.1143/jpsj.60.760
- 公開者
- 一般社団法人 日本物理学会
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説明
The shape of the magnetization curve of the S=1 Heisenberg antiferromagnet at zero temperature is discussed. It is found that the magnetization behaves as \sqrth−hc at the beginning of magnetization as a function of external field h. The transverse correlation function ⟨S0xSnx⟩=⟨S0ySny⟩ of this system decays algebraically at zero temperature when it is partially magnetized by the field to the z-direction (⟨S0xSnx⟩\simeq(−1)nn−η). The exponent η is 0.3∼0.5. This exponent can be calculated by the Luttinger liquid assumption and diagonalization results of finite chains. This is in contrast to the exponential decay of this chain in zero field.
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 60 (3), 760-763, 1991
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
- 1390282679154897152
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- NII論文ID
- 110001977175
- 130003740912
- 210000096557
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1991JPSJ...60..760T
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 3714553
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- 本文言語コード
- en
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- NDLサーチ
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