The ideal limit of rhombohedral graphene: Interaction-induced layer-skyrmion lattices and their collective excitations
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908641302413312 |
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| author | Tan, Tixuan Ledwith, Patrick J. Devakul, Trithep |
| author_facet | Tan, Tixuan Ledwith, Patrick J. Devakul, Trithep |
| contents | We introduce an ideal limit of rhombohedral graphene multilayers. In this limit, we show analytically how short-range repulsion stabilizes a layer-pseudospin skyrmion lattice, which generates an effective magnetic field and gives rise to a Chern band. This establishes the real-space origin of interaction-driven topology in moiré rhombohedral graphene. The resulting interaction-induced skyrmion lattice is physically analogous to magnetic skyrmion crystals and hosts a hierarchy of collective excitations naturally described within the framework of skyrmion-lattice dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_07402 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The ideal limit of rhombohedral graphene: Interaction-induced layer-skyrmion lattices and their collective excitations Tan, Tixuan Ledwith, Patrick J. Devakul, Trithep Mesoscale and Nanoscale Physics Strongly Correlated Electrons We introduce an ideal limit of rhombohedral graphene multilayers. In this limit, we show analytically how short-range repulsion stabilizes a layer-pseudospin skyrmion lattice, which generates an effective magnetic field and gives rise to a Chern band. This establishes the real-space origin of interaction-driven topology in moiré rhombohedral graphene. The resulting interaction-induced skyrmion lattice is physically analogous to magnetic skyrmion crystals and hosts a hierarchy of collective excitations naturally described within the framework of skyrmion-lattice dynamics. |
| title | The ideal limit of rhombohedral graphene: Interaction-induced layer-skyrmion lattices and their collective excitations |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2511.07402 |