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Orbital-symmetry effects on magnetic exchange in open-shell nanographenes
Open-shell nanographenes appear as promising candidates for future applications in spintronics and quantum technologies. A critical aspect to realize this potential is to design and control the magnetic exchange. Here, we reveal the effects of frontier orbital symmetries on the magnetic coupling in...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10412602/ https://www.ncbi.nlm.nih.gov/pubmed/37558678 http://dx.doi.org/10.1038/s41467-023-40542-0 |
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author | Du, Qingyang Su, Xuelei Liu, Yufeng Jiang, Yashi Li, Can Yan, KaKing Ortiz, Ricardo Frederiksen, Thomas Wang, Shiyong Yu, Ping |
author_facet | Du, Qingyang Su, Xuelei Liu, Yufeng Jiang, Yashi Li, Can Yan, KaKing Ortiz, Ricardo Frederiksen, Thomas Wang, Shiyong Yu, Ping |
author_sort | Du, Qingyang |
collection | PubMed |
description | Open-shell nanographenes appear as promising candidates for future applications in spintronics and quantum technologies. A critical aspect to realize this potential is to design and control the magnetic exchange. Here, we reveal the effects of frontier orbital symmetries on the magnetic coupling in diradical nanographenes through scanning probe microscope measurements and different levels of theoretical calculations. In these open-shell nanographenes, the exchange energy exhibits a remarkable variation between 20 and 160 meV. Theoretical calculations reveal that frontier orbital symmetries play a key role in affecting the magnetic coupling on such a large scale. Moreover, a triradical nanographene is demonstrated for investigating the magnetic interaction among three unpaired electrons with unequal magnetic exchange, in agreement with Heisenberg spin model calculations. Our results provide insights into both theoretical design and experimental realization of nanographene materials with different exchange interactions through tuning the orbital symmetry, potentially useful for realizing magnetically operable graphene-based nanomaterials. |
format | Online Article Text |
id | pubmed-10412602 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-104126022023-08-11 Orbital-symmetry effects on magnetic exchange in open-shell nanographenes Du, Qingyang Su, Xuelei Liu, Yufeng Jiang, Yashi Li, Can Yan, KaKing Ortiz, Ricardo Frederiksen, Thomas Wang, Shiyong Yu, Ping Nat Commun Article Open-shell nanographenes appear as promising candidates for future applications in spintronics and quantum technologies. A critical aspect to realize this potential is to design and control the magnetic exchange. Here, we reveal the effects of frontier orbital symmetries on the magnetic coupling in diradical nanographenes through scanning probe microscope measurements and different levels of theoretical calculations. In these open-shell nanographenes, the exchange energy exhibits a remarkable variation between 20 and 160 meV. Theoretical calculations reveal that frontier orbital symmetries play a key role in affecting the magnetic coupling on such a large scale. Moreover, a triradical nanographene is demonstrated for investigating the magnetic interaction among three unpaired electrons with unequal magnetic exchange, in agreement with Heisenberg spin model calculations. Our results provide insights into both theoretical design and experimental realization of nanographene materials with different exchange interactions through tuning the orbital symmetry, potentially useful for realizing magnetically operable graphene-based nanomaterials. Nature Publishing Group UK 2023-08-09 /pmc/articles/PMC10412602/ /pubmed/37558678 http://dx.doi.org/10.1038/s41467-023-40542-0 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Du, Qingyang Su, Xuelei Liu, Yufeng Jiang, Yashi Li, Can Yan, KaKing Ortiz, Ricardo Frederiksen, Thomas Wang, Shiyong Yu, Ping Orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
title | Orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
title_full | Orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
title_fullStr | Orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
title_full_unstemmed | Orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
title_short | Orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
title_sort | orbital-symmetry effects on magnetic exchange in open-shell nanographenes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10412602/ https://www.ncbi.nlm.nih.gov/pubmed/37558678 http://dx.doi.org/10.1038/s41467-023-40542-0 |
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