A novel Kagome uud-ddu spin order in Heisenberg spin-1/2 Clinoatacamite Cu$_4$(OH)$_6$Cl$_2$, the parent compound of Herbertsmithite
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909376114065408 |
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| author | Zheng, X. G. Hagihala, M. Yamauchi, I. Nishibori, E. Honda, T. Yuasa, T. Xu, C. -N. |
| author_facet | Zheng, X. G. Hagihala, M. Yamauchi, I. Nishibori, E. Honda, T. Yuasa, T. Xu, C. -N. |
| contents | The newly identified field-induced up-up-down order in Ba$_3$CoSb$_2$O$_9$ etc. renewed attention on exotic phases in spin-1/2 triangular-lattice antiferromagnets. Here, we report a unique zero-field noncoplanar up,up,down, down,down,up Kagome spin order in spin-1/2 antiferromagnet Clinoatacamite, Cu$_4$(OH)$_6$Cl$_2$, which consists of weakly-coupled Kagome layers and was known as the parent compound for the most researched spin liquid candidate Herbertsmithite ZnCu$_3$(OH)$_6$Cl$_2$. The two-dimensional uud-ddu Kagome order develops below T$_{N1}$ = 18.1 K in Clinoatacamite before a further transition into a three-dimensional magnetic order at low temperatures below T$_{N2}$ ~ 6.4 K with persistent spin fluctuations. The present work reveals a new unpredicted Kagome order in a readily accessible temperature range in the parent compound of a well-studied spin liquid. In addition, it has also solved a puzzling issue for a mysterious magnetic phase. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_01277 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A novel Kagome uud-ddu spin order in Heisenberg spin-1/2 Clinoatacamite Cu$_4$(OH)$_6$Cl$_2$, the parent compound of Herbertsmithite Zheng, X. G. Hagihala, M. Yamauchi, I. Nishibori, E. Honda, T. Yuasa, T. Xu, C. -N. Strongly Correlated Electrons Quantum Physics The newly identified field-induced up-up-down order in Ba$_3$CoSb$_2$O$_9$ etc. renewed attention on exotic phases in spin-1/2 triangular-lattice antiferromagnets. Here, we report a unique zero-field noncoplanar up,up,down, down,down,up Kagome spin order in spin-1/2 antiferromagnet Clinoatacamite, Cu$_4$(OH)$_6$Cl$_2$, which consists of weakly-coupled Kagome layers and was known as the parent compound for the most researched spin liquid candidate Herbertsmithite ZnCu$_3$(OH)$_6$Cl$_2$. The two-dimensional uud-ddu Kagome order develops below T$_{N1}$ = 18.1 K in Clinoatacamite before a further transition into a three-dimensional magnetic order at low temperatures below T$_{N2}$ ~ 6.4 K with persistent spin fluctuations. The present work reveals a new unpredicted Kagome order in a readily accessible temperature range in the parent compound of a well-studied spin liquid. In addition, it has also solved a puzzling issue for a mysterious magnetic phase. |
| title | A novel Kagome uud-ddu spin order in Heisenberg spin-1/2 Clinoatacamite Cu$_4$(OH)$_6$Cl$_2$, the parent compound of Herbertsmithite |
| topic | Strongly Correlated Electrons Quantum Physics |
| url | https://arxiv.org/abs/2411.01277 |