A Floquet gap finally opens in graphene

Subjects Electronic properties and materialsOptical properties and devicesTopological insulators Time- and angle-resolved photoemission spectroscopy now resolves the long-sought avoided crossing in light-driven graphene, establishing a practical recipe for Floquet band engineering and sharpening prospects for light-induced topology in quantum materials. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution Access options Access through your institution Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any time Learn more Subscribe to this journal Receive 12 print issues and online access $259.00 per year only $21.58 per issue Learn more Rent or buy this article Prices vary by article type from$1.95 to$39.95 Learn more Prices may be subject to local taxes which are calculated during checkout Fig. 1: trARPES can now resolve Floquet energy gaps in monolayer graphene. ReferencesOka, T. & Aoki, H. Phys. Rev. B 79, 081406 (2009).Article Google Scholar Wang, F. et al. Nat. Mater. https://doi.org/10.1038/s41563-026-02549-y (2026).Article PubMed Google Scholar Aeschlimann, S. et al. Nano Lett. 21, 5028–5035 (2021).Article PubMed PubMed Central CAS Google Scholar Zhou, S. et al. Nature 614, 75–80 (2023).Article PubMed CAS Google Scholar Fragkos, S. et al. Nat. Commun. 16, 5799 (2025).Article PubMed PubMed Central Google Scholar Merboldt, M. et al. Nat. Phys. 21, 1093–1099 (2025).Article PubMed PubMed Central CAS Google Scholar Choi, D. et al. Nat. Phys. 21, 1100–1105 (2025).Article CAS Google Scholar Lindner, N. H., Refael, G. & Galitski, V. Nat. Phys. 7, 490–495 (2011).Article CAS Google Scholar McIver, J. W. et al. Nat. Phys. 16, 38–41 (2020).Article PubMed CAS Google Scholar Schüler, M. et al. Phys. Rev. X 10, 041013 (2020).

Google Scholar Download referencesAuthor informationAuthors and AffiliationsInstitute for Theoretical Physics and Bremen Center for Computational Materials Science, University of Bremen, Bremen, GermanyMichael A. SentefMax Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Hamburg, GermanyMichael A. SentefDepartment of Physics, Philipps-Universität Marburg, Marburg, GermanyMarcel Reutzelmar.quest — Marburg Center for Quantum Materials and Sustainable Technologies, Marburg, GermanyMarcel ReutzelAuthorsMichael A. SentefView author publicationsSearch author on:PubMed Google ScholarMarcel ReutzelView author publicationsSearch author on:PubMed Google ScholarCorresponding authorCorrespondence to Michael A. Sentef.Ethics declarations Competing interests The authors declare no competing interests. Rights and permissionsReprints and permissionsAbout this articleCite this articleSentef, M.A., Reutzel, M. A Floquet gap finally opens in graphene. Nat. Mater. (2026). https://doi.org/10.1038/s41563-026-02548-zDownload citationPublished: 23 March 2026Version of record: 23 March 2026DOI: https://doi.org/10.1038/s41563-026-02548-zShare this articleAnyone you share the following link with will be able to read this content:Get shareable linkSorry, a shareable link is not currently available for this article.Copy shareable link to clipboard Provided by the Springer Nature SharedIt content-sharing initiative Observation of Floquet-induced gap in graphene Fei WangXuanxi CaiShuyun Zhou Nature Materials Article 23 Mar 2026