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| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.03212 |
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| _version_ | 1866909472259047424 |
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| author | Jiang, Xinyi Qiu, Qingzheng Peng, Cheng Jang, Hoyoung Chen, Wenjie Jin, Xianghong Yue, Li Lee, Byungjune Park, Sang-Youn Kim, Minseok Kim, Hyeong-Do Cai, Xinqiang Li, Qizhi Dong, Tao Wang, Nanlin Turner, Joshua J. Li, Yuan Wang, Yao Peng, Yingying |
| author_facet | Jiang, Xinyi Qiu, Qingzheng Peng, Cheng Jang, Hoyoung Chen, Wenjie Jin, Xianghong Yue, Li Lee, Byungjune Park, Sang-Youn Kim, Minseok Kim, Hyeong-Do Cai, Xinqiang Li, Qizhi Dong, Tao Wang, Nanlin Turner, Joshua J. Li, Yuan Wang, Yao Peng, Yingying |
| contents | Materials potentially hosting Kitaev spin-liquid states are considered crucial for realizing topological quantum computing. However, the intricate nature of spin interactions within these materials complicates the precise measurement of low-energy spin excitations indicative of fractionalized excitations. Using Na$_{2}$Co$_2$TeO$_{6}$ as an example, we study these low-energy spin excitations using the time-resolved resonant elastic x-ray scattering (tr-REXS). Our observations unveil remarkably slow spin dynamics at the magnetic peak, whose recovery timescale is several nanoseconds. This timescale aligns with the extrapolated spin gap of $\sim$ 1 $μ$eV, obtained by density matrix renormalization group (DMRG) simulations in the thermodynamic limit. The consistency demonstrates the efficacy of tr-REXS in discerning low-energy spin gaps inaccessible to conventional spectroscopic techniques. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_03212 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Using magnetic dynamics to measure the spin gap in a candidate Kitaev material Jiang, Xinyi Qiu, Qingzheng Peng, Cheng Jang, Hoyoung Chen, Wenjie Jin, Xianghong Yue, Li Lee, Byungjune Park, Sang-Youn Kim, Minseok Kim, Hyeong-Do Cai, Xinqiang Li, Qizhi Dong, Tao Wang, Nanlin Turner, Joshua J. Li, Yuan Wang, Yao Peng, Yingying Strongly Correlated Electrons Materials potentially hosting Kitaev spin-liquid states are considered crucial for realizing topological quantum computing. However, the intricate nature of spin interactions within these materials complicates the precise measurement of low-energy spin excitations indicative of fractionalized excitations. Using Na$_{2}$Co$_2$TeO$_{6}$ as an example, we study these low-energy spin excitations using the time-resolved resonant elastic x-ray scattering (tr-REXS). Our observations unveil remarkably slow spin dynamics at the magnetic peak, whose recovery timescale is several nanoseconds. This timescale aligns with the extrapolated spin gap of $\sim$ 1 $μ$eV, obtained by density matrix renormalization group (DMRG) simulations in the thermodynamic limit. The consistency demonstrates the efficacy of tr-REXS in discerning low-energy spin gaps inaccessible to conventional spectroscopic techniques. |
| title | Using magnetic dynamics to measure the spin gap in a candidate Kitaev material |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2405.03212 |