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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2309.10335 |
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| _version_ | 1866914815732088832 |
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| author | Yue, Lei Lu, Ziyou Yan, Kun Wang, Le Guo, Shu Guo, Ruixin Chen, Peng Chen, Xiaobin Mei, Jia-Wei |
| author_facet | Yue, Lei Lu, Ziyou Yan, Kun Wang, Le Guo, Shu Guo, Ruixin Chen, Peng Chen, Xiaobin Mei, Jia-Wei |
| contents | In our study, we conduct magnetization and heat capacity measurements to investigate field induced magnetic phase transitions within the newly synthesized compound K2Ni2(SeO3)3, a spin-1 dimer system arranged on a triangular lattice. From our first-principles simulations, we determine that the spin system in K2Ni2(SeO3)3 can be represented as a two-dimensional triangular-lattice spin-1 dimer model, including an intra-dimer exchange of J1 = 0.32 meV, an inter-dimer exchange of J2 = 0.79 meV, and an easy-axis anisotropy of D = 0.14 meV. The presence of easy-axis magnetic anisotropy explains the distinct magnetic phase diagrams observed under c-axis directional and in-plane magnetic fields. Notably, our investigation unveils a two-step phase transition with the magnetic field aligned with the c direction. Our findings yield valuable insights into the magnetic phase transitions inherent to geometrically frustrated magnetic systems featuring dimer structures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_10335 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Magnetic phase transitions in the triangular-lattice spin-1 dimer compound K2Ni2(SeO3)3 Yue, Lei Lu, Ziyou Yan, Kun Wang, Le Guo, Shu Guo, Ruixin Chen, Peng Chen, Xiaobin Mei, Jia-Wei Strongly Correlated Electrons In our study, we conduct magnetization and heat capacity measurements to investigate field induced magnetic phase transitions within the newly synthesized compound K2Ni2(SeO3)3, a spin-1 dimer system arranged on a triangular lattice. From our first-principles simulations, we determine that the spin system in K2Ni2(SeO3)3 can be represented as a two-dimensional triangular-lattice spin-1 dimer model, including an intra-dimer exchange of J1 = 0.32 meV, an inter-dimer exchange of J2 = 0.79 meV, and an easy-axis anisotropy of D = 0.14 meV. The presence of easy-axis magnetic anisotropy explains the distinct magnetic phase diagrams observed under c-axis directional and in-plane magnetic fields. Notably, our investigation unveils a two-step phase transition with the magnetic field aligned with the c direction. Our findings yield valuable insights into the magnetic phase transitions inherent to geometrically frustrated magnetic systems featuring dimer structures. |
| title | Magnetic phase transitions in the triangular-lattice spin-1 dimer compound K2Ni2(SeO3)3 |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2309.10335 |