Quadrupolar excitons in MoSe2 bilayers
Abstract The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterostructures. Among the unconventional excitonic states, quadrupolar excitons—a superposition of two dipolar excito...
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| Format: | Article |
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Nature Portfolio
2025-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56586-3 |
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| author | Jakub Jasiński Joakim Hagel Samuel Brem Edith Wietek Takashi Taniguchi Kenji Watanabe Alexey Chernikov Nicolas Bruyant Mateusz Dyksik Alessandro Surrente Michał Baranowski Duncan K. Maude Ermin Malic Paulina Plochocka |
| author_facet | Jakub Jasiński Joakim Hagel Samuel Brem Edith Wietek Takashi Taniguchi Kenji Watanabe Alexey Chernikov Nicolas Bruyant Mateusz Dyksik Alessandro Surrente Michał Baranowski Duncan K. Maude Ermin Malic Paulina Plochocka |
| author_sort | Jakub Jasiński |
| collection | DOAJ |
| description | Abstract The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterostructures. Among the unconventional excitonic states, quadrupolar excitons—a superposition of two dipolar excitons with anti-aligned dipole moments—are of great interest for applications in quantum simulations and for the investigation of many-body physics. Here, we unambiguously demonstrate the emergence of quadrupolar excitons in natural MoSe2 homobilayers, whose energy shifts quadratically in electric field. In contrast to trilayer systems, MoSe2 homobilayers have many advantages, which include a larger coupling between dipolar excitons. Our experimental observations are complemented by many-particle theory calculations offering microscopic insights in the formation of quadrupolar excitons. Our results suggest TMD homobilayers as ideal platform for the engineering of excitonic states and their interaction with light and thus candidate for carrying out on-chip quantum simulations. |
| format | Article |
| id | doaj-art-2a12b45811374e9bb67efb16fac80f78 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-2a12b45811374e9bb67efb16fac80f782025-02-09T12:44:39ZengNature PortfolioNature Communications2041-17232025-02-011611810.1038/s41467-025-56586-3Quadrupolar excitons in MoSe2 bilayersJakub Jasiński0Joakim Hagel1Samuel Brem2Edith Wietek3Takashi Taniguchi4Kenji Watanabe5Alexey Chernikov6Nicolas Bruyant7Mateusz Dyksik8Alessandro Surrente9Michał Baranowski10Duncan K. Maude11Ermin Malic12Paulina Plochocka13Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and TechnologyDepartment of Physics, Chalmers University of TechnologyDepartment of Physics, Philipps-Universität MarburgInstitute of Applied Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität DresdenResearch Center for Materials Nanoarchitectonics, National Institute for Materials ScienceResearch Center for Electronic and Optical Materials, National Institute for Materials ScienceInstitute of Applied Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, Technische Universität DresdenLaboratoire National des Champs Magnétiques Intenses, EMFL, CNRS UPR 3228, Université Grenoble Alpes, Université ToulouseDepartment of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and TechnologyDepartment of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and TechnologyDepartment of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and TechnologyLaboratoire National des Champs Magnétiques Intenses, EMFL, CNRS UPR 3228, Université Grenoble Alpes, Université ToulouseDepartment of Physics, Philipps-Universität MarburgDepartment of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and TechnologyAbstract The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterostructures. Among the unconventional excitonic states, quadrupolar excitons—a superposition of two dipolar excitons with anti-aligned dipole moments—are of great interest for applications in quantum simulations and for the investigation of many-body physics. Here, we unambiguously demonstrate the emergence of quadrupolar excitons in natural MoSe2 homobilayers, whose energy shifts quadratically in electric field. In contrast to trilayer systems, MoSe2 homobilayers have many advantages, which include a larger coupling between dipolar excitons. Our experimental observations are complemented by many-particle theory calculations offering microscopic insights in the formation of quadrupolar excitons. Our results suggest TMD homobilayers as ideal platform for the engineering of excitonic states and their interaction with light and thus candidate for carrying out on-chip quantum simulations.https://doi.org/10.1038/s41467-025-56586-3 |
| spellingShingle | Jakub Jasiński Joakim Hagel Samuel Brem Edith Wietek Takashi Taniguchi Kenji Watanabe Alexey Chernikov Nicolas Bruyant Mateusz Dyksik Alessandro Surrente Michał Baranowski Duncan K. Maude Ermin Malic Paulina Plochocka Quadrupolar excitons in MoSe2 bilayers Nature Communications |
| title | Quadrupolar excitons in MoSe2 bilayers |
| title_full | Quadrupolar excitons in MoSe2 bilayers |
| title_fullStr | Quadrupolar excitons in MoSe2 bilayers |
| title_full_unstemmed | Quadrupolar excitons in MoSe2 bilayers |
| title_short | Quadrupolar excitons in MoSe2 bilayers |
| title_sort | quadrupolar excitons in mose2 bilayers |
| url | https://doi.org/10.1038/s41467-025-56586-3 |
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