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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2112.03516 |
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| _version_ | 1866917802575659008 |
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| author | Furuchi, Rito Nakano, Hiroki Todoroki, Norikazu Sakai, Toru |
| author_facet | Furuchi, Rito Nakano, Hiroki Todoroki, Norikazu Sakai, Toru |
| contents | We study the S=1/2 Heisenberg antiferromagnet on the floret pentagonal lattice by numerical diagonalization method. This system shows various behaviours that are different from that of the Cairo-pentagonal-lattice antiferromagnet. The ground-state energy without magnetic field and the magnetization process of this system are reported. Magnetization plateaux appear at one-ninth height of the saturation magnetization, at one-third height, and at seven-ninth height. The magnetization plateaux at one-third and seven-ninth heights come from interactions linking the sixfold-coordinated spin sites. A magnetization jump appears from the plateau at one-ninth height to the plateau at one-third height. Another magnetization jump is observed between the heights corresponding to the one-third and seven-ninth plateaux; however the jump is away from the two plateaux, namely, the jump is not accompanied with any magnetization plateaux. The jump is a peculiar phenomenon that has not been reported. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2112_03516 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Magnetization process of the S=1/2 Heisenberg antiferromagnet on the floret pentagonal lattice Furuchi, Rito Nakano, Hiroki Todoroki, Norikazu Sakai, Toru Strongly Correlated Electrons Materials Science Statistical Mechanics We study the S=1/2 Heisenberg antiferromagnet on the floret pentagonal lattice by numerical diagonalization method. This system shows various behaviours that are different from that of the Cairo-pentagonal-lattice antiferromagnet. The ground-state energy without magnetic field and the magnetization process of this system are reported. Magnetization plateaux appear at one-ninth height of the saturation magnetization, at one-third height, and at seven-ninth height. The magnetization plateaux at one-third and seven-ninth heights come from interactions linking the sixfold-coordinated spin sites. A magnetization jump appears from the plateau at one-ninth height to the plateau at one-third height. Another magnetization jump is observed between the heights corresponding to the one-third and seven-ninth plateaux; however the jump is away from the two plateaux, namely, the jump is not accompanied with any magnetization plateaux. The jump is a peculiar phenomenon that has not been reported. |
| title | Magnetization process of the S=1/2 Heisenberg antiferromagnet on the floret pentagonal lattice |
| topic | Strongly Correlated Electrons Materials Science Statistical Mechanics |
| url | https://arxiv.org/abs/2112.03516 |