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Quantum paramagnetic states in the spin-1/2 distorted honeycomb-lattice Heisenberg antiferromagnet: Application to Cu2(pymca)3(ClO4)
https://oist.repo.nii.ac.jp/records/2823
https://oist.repo.nii.ac.jp/records/2823f09d27b6-fe29-434e-88da-ec04ebb919eb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Shimokawa-2022-Quantum paramagnetic states in (2.5 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2022-10-17 | |||||
| タイトル | ||||||
| タイトル | Quantum paramagnetic states in the spin-1/2 distorted honeycomb-lattice Heisenberg antiferromagnet: Application to Cu2(pymca)3(ClO4) | |||||
| 言語 | en | |||||
| 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 | |||||
| 著者（英） |
Shimokawa, Tokuro
× Shimokawa, Tokuro× Takano, Ken'ichi× Honda, Zentaro× Okutani, Akira× Hagiwara, Masayuki |
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| 書誌情報 |
en : Physical Review B 巻 106, 号 13, p. 134410, 発行日 2022-10-12 |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | We investigate the ground-state phase diagram of a spin-1/2 honeycomb-lattice antiferromagnetic (AF) Heisenberg model with three exchange interactions, J A , J B , and J C , that is realized in a distorted honeycomb-lattice antiferromagnet Cu 2 ( pymca ) 3 ( ClO 4 ) . We remeasured the magnetic susceptibility of its polycrystalline sample with special care and determined the exchange parameters of this material through the comparison with numerical results based on a quantum Monte Carlo (QMC) method. The QMC method also provides a ground-state phase diagram in the J A / J C − J B / J C plane. The phase diagram consists of a small N ˊ e el phase and a gapped quantum paramagnetic phase surrounding the N ˊ e el phase. The latter includes six regimes of hexagonal-singlet-type states and dimer-singlet-type states alternatingly without boundaries closing the spin gap. We further calculate the equal-time spin structure factor in each phase using the QMC method. The computed spin dynamics by the exact diagonalization method exhibits continua near and in the AF phase. Characteristic four energy band structures in the state with strong hexagonal-singlet-type correlations are informative to clarify the ground state of Cu 2 ( pymca ) 3 ( ClO 4 ) by future neutron scattering measurements. | |||||
| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9950 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9969 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1103/PhysRevB.106.134410 | |||||
| 権利 | ||||||
| 権利情報 | © 2022 American Physical Society | |||||
| 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.106.134410 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
