ArticleNature materials2026
Observation of Floquet-induced gap in graphene.
Article in Nature materials, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Role of Ultrafast Electron-Thermal-Phonon Interactions in High Harmonic Generation and Dephasing from Graphene.The journal of physical chemistry letters · 2026Article
- Floquet topological state induced by light-driven band inversion in SnTe.Nature physics · 2026Article
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Authors and funding
11 authors.
Funding
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Abstract
Floquet engineering provides a powerful pathway for creating non-equilibrium phases of matter with tailored electronic structures and properties through time-periodic driving. As the original theoretical prototype, graphene established the framework in which the Floquet topological insulator with the light-induced anomalous Hall effect was proposed. However, the defining spectroscopic signature of Floquet engineering in graphene, light-induced hybridization (avoided-crossing) gap at Floquet band crossings, has remained experimentally elusive. Here we report the direct observation of a Floquet-induced hybridization gap in monolayer graphene under resonant driving by a strong light field. Time- and angle-resolved photoemission spectroscopy reveals a gap opening at Floquet band crossings, accompanied by coherent Floquet sidebands. The gap exhibits pronounced momentum anisotropy, featuring two Dirac nodes protected by spatiotemporal symmetry and tunable by light polarization. These results provide the long-sought experimental demonstration of Floquet band engineering in graphene, opening up opportunities for light-field-engineered quantum phases in graphene and related materials.
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41872300What OpenQuestion holds
Registered trials
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