Multicomponent magneto-orbital order and magneto-orbitons in monolayer VCl3
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866909534935580672 |
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| author | Camerano, Luigi Fumega, Adolfo O. Profeta, Gianni Lado, Jose L. |
| author_facet | Camerano, Luigi Fumega, Adolfo O. Profeta, Gianni Lado, Jose L. |
| contents | Van der Waals monolayers featuring magnetic states provide a fundamental building block for artificial quantum matter. Here, we establish the emergence of a multicomponent ground state featuring magneto-orbital excitations of the 3d2-transition metal trihalide VCl3 monolayer. We show that monolayer VCl3 realizes a ground state with simultaneous magnetic and orbital ordering using density functional theory. Using first-principles methods we derive an effective Hamiltonian with intertwined spin and orbital degree of freedom, which we demonstrate can be tuned by strain. We show that magneto-orbitons appear as the collective modes of this complex order, and arise from coupled orbiton magnon excitations due to the magneto-orbital coupling in the system. Our results establish VCl3 as a promising 2D material to observe emergent magneto-orbital excitations and provide a platform for multicomponent symmetry breaking. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_05056 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multicomponent magneto-orbital order and magneto-orbitons in monolayer VCl3 Camerano, Luigi Fumega, Adolfo O. Profeta, Gianni Lado, Jose L. Strongly Correlated Electrons Materials Science Van der Waals monolayers featuring magnetic states provide a fundamental building block for artificial quantum matter. Here, we establish the emergence of a multicomponent ground state featuring magneto-orbital excitations of the 3d2-transition metal trihalide VCl3 monolayer. We show that monolayer VCl3 realizes a ground state with simultaneous magnetic and orbital ordering using density functional theory. Using first-principles methods we derive an effective Hamiltonian with intertwined spin and orbital degree of freedom, which we demonstrate can be tuned by strain. We show that magneto-orbitons appear as the collective modes of this complex order, and arise from coupled orbiton magnon excitations due to the magneto-orbital coupling in the system. Our results establish VCl3 as a promising 2D material to observe emergent magneto-orbital excitations and provide a platform for multicomponent symmetry breaking. |
| title | Multicomponent magneto-orbital order and magneto-orbitons in monolayer VCl3 |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2409.05056 |