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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2403.11490 |
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| _version_ | 1866916337990762496 |
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| author | Mashiko, Tohru Okubo, Tsuyoshi |
| author_facet | Mashiko, Tohru Okubo, Tsuyoshi |
| contents | Besides the exactly solvable spin-1/2 Kitaev model, higher spin-$S$ ones, not exactly solvable, are promising playgrounds for researches on the quantum spin liquid as well. One of the main interests in higher spin-S cases is the interplay between the Kitaev spin liquid (KSL) and spin nematics. We probe this interplay in a spin-1 model on the honeycomb lattice with competing bilinear-biquadratic and Kitaev interactions. Utilizing the 2D infinite projected entangled-pair state (iPEPS), we map out the phase diagram for the ferro-biquadratic interaction. In the phase diagram, we discover the direct KSL--spin-nematics transitions in the vicinity of pure Kitaev limits. It has been revealed that the ferro KSL exhibits robustness against perturbations from ferro-quadrupolar interactions. Also, the spin-nematic phase is extended to the parameter region near the antiferro-Kitaev limit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_11490 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum phase transition between spin liquid and spin nematics in spin-1 Kitaev honeycomb model Mashiko, Tohru Okubo, Tsuyoshi Statistical Mechanics Besides the exactly solvable spin-1/2 Kitaev model, higher spin-$S$ ones, not exactly solvable, are promising playgrounds for researches on the quantum spin liquid as well. One of the main interests in higher spin-S cases is the interplay between the Kitaev spin liquid (KSL) and spin nematics. We probe this interplay in a spin-1 model on the honeycomb lattice with competing bilinear-biquadratic and Kitaev interactions. Utilizing the 2D infinite projected entangled-pair state (iPEPS), we map out the phase diagram for the ferro-biquadratic interaction. In the phase diagram, we discover the direct KSL--spin-nematics transitions in the vicinity of pure Kitaev limits. It has been revealed that the ferro KSL exhibits robustness against perturbations from ferro-quadrupolar interactions. Also, the spin-nematic phase is extended to the parameter region near the antiferro-Kitaev limit. |
| title | Quantum phase transition between spin liquid and spin nematics in spin-1 Kitaev honeycomb model |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2403.11490 |