Naturally occurring 2D semiconductor with antiferromagnetic ground state
Abstract The natural clay mineral vermiculite has been overlooked as a promising candidate for scalable production of large aspect ratio 2D wide band-gap semiconductors. We combine here efficient methods for vermiculite delamination, which provides single nanosheets of ~1 nm thickness. It is demonst...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-05-01
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| Series: | npj 2D Materials and Applications |
| Online Access: | https://doi.org/10.1038/s41699-025-00561-5 |
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| author | Barbara Pacakova Bera Lahtinen-Dahl Alexsandro Kirch Hanna Demchenko Veslemoy Osmundsen Chloe A. Fuller Dmitry Chernyshov Dominika Zakutna Caetano R. Miranda Steinar Raaen Jon Otto Fossum |
| author_facet | Barbara Pacakova Bera Lahtinen-Dahl Alexsandro Kirch Hanna Demchenko Veslemoy Osmundsen Chloe A. Fuller Dmitry Chernyshov Dominika Zakutna Caetano R. Miranda Steinar Raaen Jon Otto Fossum |
| author_sort | Barbara Pacakova |
| collection | DOAJ |
| description | Abstract The natural clay mineral vermiculite has been overlooked as a promising candidate for scalable production of large aspect ratio 2D wide band-gap semiconductors. We combine here efficient methods for vermiculite delamination, which provides single nanosheets of ~1 nm thickness. It is demonstrated by experiments and simulations that delaminated vermiculite nanosheets act as semiconductors with a wide band-gap energy of 3.3–3.9 eV depending on the elemental composition, and with an antiferromagnetic ground state, which is crucial for creating advanced 2D devices operating at high frequencies or voltages. This study advances the understanding of vermiculite. With its natural abundance, affordability, non-toxicity, and ability to form high-quality nanosheets, vermiculite is a valuable and sustainable resource for future electronic, spintronic and photonics devices. |
| format | Article |
| id | doaj-art-d7a9c61082754cd2a84a18574d2af5fd |
| institution | Kabale University |
| issn | 2397-7132 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj 2D Materials and Applications |
| spelling | doaj-art-d7a9c61082754cd2a84a18574d2af5fd2025-08-20T03:48:02ZengNature Portfolionpj 2D Materials and Applications2397-71322025-05-01911810.1038/s41699-025-00561-5Naturally occurring 2D semiconductor with antiferromagnetic ground stateBarbara Pacakova0Bera Lahtinen-Dahl1Alexsandro Kirch2Hanna Demchenko3Veslemoy Osmundsen4Chloe A. Fuller5Dmitry Chernyshov6Dominika Zakutna7Caetano R. Miranda8Steinar Raaen9Jon Otto Fossum10Department of Physics, Norwegian University of Science and Technology – NTNUDepartment of Physics, Norwegian University of Science and Technology – NTNUInstute of Physics, University of Sao Paulo – USPDepartment of Physics, Norwegian University of Science and Technology – NTNUDepartment of Physics, Norwegian University of Science and Technology – NTNUSwiss Norwegian Beamlines at European Synchrotron Radiation FacilitySwiss Norwegian Beamlines at European Synchrotron Radiation FacilityDepartment of Inorganic Chemistry, Faculty of Science, Charles UniversityInstute of Physics, University of Sao Paulo – USPDepartment of Physics, Norwegian University of Science and Technology – NTNUDepartment of Physics, Norwegian University of Science and Technology – NTNUAbstract The natural clay mineral vermiculite has been overlooked as a promising candidate for scalable production of large aspect ratio 2D wide band-gap semiconductors. We combine here efficient methods for vermiculite delamination, which provides single nanosheets of ~1 nm thickness. It is demonstrated by experiments and simulations that delaminated vermiculite nanosheets act as semiconductors with a wide band-gap energy of 3.3–3.9 eV depending on the elemental composition, and with an antiferromagnetic ground state, which is crucial for creating advanced 2D devices operating at high frequencies or voltages. This study advances the understanding of vermiculite. With its natural abundance, affordability, non-toxicity, and ability to form high-quality nanosheets, vermiculite is a valuable and sustainable resource for future electronic, spintronic and photonics devices.https://doi.org/10.1038/s41699-025-00561-5 |
| spellingShingle | Barbara Pacakova Bera Lahtinen-Dahl Alexsandro Kirch Hanna Demchenko Veslemoy Osmundsen Chloe A. Fuller Dmitry Chernyshov Dominika Zakutna Caetano R. Miranda Steinar Raaen Jon Otto Fossum Naturally occurring 2D semiconductor with antiferromagnetic ground state npj 2D Materials and Applications |
| title | Naturally occurring 2D semiconductor with antiferromagnetic ground state |
| title_full | Naturally occurring 2D semiconductor with antiferromagnetic ground state |
| title_fullStr | Naturally occurring 2D semiconductor with antiferromagnetic ground state |
| title_full_unstemmed | Naturally occurring 2D semiconductor with antiferromagnetic ground state |
| title_short | Naturally occurring 2D semiconductor with antiferromagnetic ground state |
| title_sort | naturally occurring 2d semiconductor with antiferromagnetic ground state |
| url | https://doi.org/10.1038/s41699-025-00561-5 |
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