Evidence for field induced quantum spin liquid behavior in a spin-1/2 honeycomb magnet
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arXiv
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2024
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| author | Lin, Gaoting Shu, Mingfang Zhao, Qirong Li, Gang Ma, Yinina Jiao, Jinlong Li, Yuting Duan, Guijing Huang, Qing Sheng, Jieming Kolesnikov, Alexander I. Li, Lu Wu, Liusuo Chen, Hongwei Yu, Rong Wang, Xiaoqun Liu, Zhengxin Zhou, Haidong Ma, Jie |
| author_facet | Lin, Gaoting Shu, Mingfang Zhao, Qirong Li, Gang Ma, Yinina Jiao, Jinlong Li, Yuting Duan, Guijing Huang, Qing Sheng, Jieming Kolesnikov, Alexander I. Li, Lu Wu, Liusuo Chen, Hongwei Yu, Rong Wang, Xiaoqun Liu, Zhengxin Zhou, Haidong Ma, Jie |
| contents | One of the most important issues in modern condensed matter physics is the realization of fractionalized excitations, such as the Majorana excitations in the Kitaev quantum spin liquid. To this aim, the 3d-based Kitaev material Na2Co2TeO6 is a promising candidate whose magnetic phase diagram of B // a* contains a field-induced intermediate magnetically disordered phase within 7.5 T < |B| < 10 T. The experimental observations, including the restoration of the crystalline point group symmetry in the angle-dependent torque and the coexisting magnon excitations and spinon-continuum in the inelastic neutron scattering spectrum, provide strong evidence that this disordered phase is a field induced quantum spin liquid with partially polarized spins. Our variational Monte Carlo simulation with the effective K-J1-Γ-Γ'-J3 model reproduces the experimental data and further supports this conclusion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_07959 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Evidence for field induced quantum spin liquid behavior in a spin-1/2 honeycomb magnet Lin, Gaoting Shu, Mingfang Zhao, Qirong Li, Gang Ma, Yinina Jiao, Jinlong Li, Yuting Duan, Guijing Huang, Qing Sheng, Jieming Kolesnikov, Alexander I. Li, Lu Wu, Liusuo Chen, Hongwei Yu, Rong Wang, Xiaoqun Liu, Zhengxin Zhou, Haidong Ma, Jie Strongly Correlated Electrons One of the most important issues in modern condensed matter physics is the realization of fractionalized excitations, such as the Majorana excitations in the Kitaev quantum spin liquid. To this aim, the 3d-based Kitaev material Na2Co2TeO6 is a promising candidate whose magnetic phase diagram of B // a* contains a field-induced intermediate magnetically disordered phase within 7.5 T < |B| < 10 T. The experimental observations, including the restoration of the crystalline point group symmetry in the angle-dependent torque and the coexisting magnon excitations and spinon-continuum in the inelastic neutron scattering spectrum, provide strong evidence that this disordered phase is a field induced quantum spin liquid with partially polarized spins. Our variational Monte Carlo simulation with the effective K-J1-Γ-Γ'-J3 model reproduces the experimental data and further supports this conclusion. |
| title | Evidence for field induced quantum spin liquid behavior in a spin-1/2 honeycomb magnet |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2409.07959 |