Controllable Weyl Nodes and Fermi Arcs from Floquet Engineering Triple Fermions
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916408134205440 |
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| author | Huang, Shengpu Zhan, Fangyang Ding, Xianyong Xu, Dong-Hui Ma, Da-Shuai Wang, Rui |
| author_facet | Huang, Shengpu Zhan, Fangyang Ding, Xianyong Xu, Dong-Hui Ma, Da-Shuai Wang, Rui |
| contents | Floquet engineering with periodic driving as a powerful tool for designing desirable topological states has been the subject of intense recent studies. Here, we present the application of Floquet engineering to investigate evolution of topological triple fermions under irradiation of circularly polarized light (CPL), a phenomenon that currently remains a mystery. By using first-principles calculations and Floquet theorem, we demonstrate that WC-type TiO and its analogues are promising candidates for Floquet engineering of triple fermions. The symmetry analysis reveals that the electric field of CPL can break the specific symmetries, such as the time-reversal symmetry and its combination of spatial symmetries, inducing a transition to a flexibly controllable Weyl semimetallic phase. The survived spatial symmetry, controlled by light, guarantees that the Weyl nodes are located along the high-symmetry line or in high-symmetry planes in momentum space. Our findings focusing on Floquet engineering in realistic materials featured by triple fermions would facilitate both theoretical and experimental interest. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_05413 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Controllable Weyl Nodes and Fermi Arcs from Floquet Engineering Triple Fermions Huang, Shengpu Zhan, Fangyang Ding, Xianyong Xu, Dong-Hui Ma, Da-Shuai Wang, Rui Materials Science Mesoscale and Nanoscale Physics Floquet engineering with periodic driving as a powerful tool for designing desirable topological states has been the subject of intense recent studies. Here, we present the application of Floquet engineering to investigate evolution of topological triple fermions under irradiation of circularly polarized light (CPL), a phenomenon that currently remains a mystery. By using first-principles calculations and Floquet theorem, we demonstrate that WC-type TiO and its analogues are promising candidates for Floquet engineering of triple fermions. The symmetry analysis reveals that the electric field of CPL can break the specific symmetries, such as the time-reversal symmetry and its combination of spatial symmetries, inducing a transition to a flexibly controllable Weyl semimetallic phase. The survived spatial symmetry, controlled by light, guarantees that the Weyl nodes are located along the high-symmetry line or in high-symmetry planes in momentum space. Our findings focusing on Floquet engineering in realistic materials featured by triple fermions would facilitate both theoretical and experimental interest. |
| title | Controllable Weyl Nodes and Fermi Arcs from Floquet Engineering Triple Fermions |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2408.05413 |