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Magnetization plateau of the S=2 antiferromagnetic Heisenberg chain with anisotropies
https://repo.qst.go.jp/records/79100
https://repo.qst.go.jp/records/7910090db5ea9-054c-439d-81be-0976510f9671
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-03-01 | |||||
タイトル | ||||||
タイトル | Magnetization plateau of the S=2 antiferromagnetic Heisenberg chain with anisotropies | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sakai, Toru
× Sakai, Toru× Okamoto, Kiyomi× Tonegawa, Takashi× Toru, Sakai |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigate the S=2 antiferromagnetic quantum spin chain with the exchange and single-ion anisotropies in a magnetic field, using the numerical exact diagonalization of finite-size clusters and the level spectroscopy analysis. It is found that a magnetization plateau possibly appears at half of the saturation magnetization for some suitable anisotropy parameters. The level spectroscopy analysis indicates that the 1/2 magnetization plateau is formed by two different mechanisms, depending on the anisotropy parameters. The phase diagram of the 1/2 plateau states and some typical magnetization curves are also presented. In addition, the biquadratic interaction is revealed to enhance the plateau induced by the Haldane mechanism. | |||||
書誌情報 |
Physical Review B 巻 100, p. 054407-1-054407-6, 発行日 2019-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1098-0121 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1103/PhysRevB.100.054407 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.054407 |