First-Order Phase Transition in the<b><i><i>S</i></i>=1</b>Quantum Spin Chain with Partial Integrability
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- Sato Ryutaro
- Department of Physics, Faculty of Science, Osaka University, Toyonaka, Osaka 560
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- Akutsu Yasuhiro
- Department of Physics, Faculty of Science, Osaka University, Toyonaka, Osaka 560
書誌事項
- タイトル別名
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- First-Order Phase Transition in the S = 1 Quantum Spin Chain with Partial Integrability.
- First-Order Phase Transition in the S 1
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The zero-temperature magnetization curve of the S=1 antiferromagnetic XXZ chain with partial integrability is studied by the Bethe ansatz, combined with a numerical renormalization-group method. We find a magnetic first-order phase transition; the magnetization curve shows a discontinuity at a critical field h_c. Due to the partial integrability, the low-field curve and the high-field curve each correspond to a part of the magnetization curve of the S=\frac12XXZ chain. We conclude that the obtained magnetization curve is exact in the whole range of the magnetic 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 65 (7), 1885-1887, 1996
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
- 1390282679156813184
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- NII論文ID
- 110001977836
- 130004535730
- 210000099400
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1996JPSJ...65.1885S
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- ISSN
- 13474073
- 00319015
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- MRID
- 1410957
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- NDL書誌ID
- 4014387
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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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