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Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons
We report on the construction and magnetic characterization of a fully functional hybrid molecular system composed of a single magnetic porphyrin molecule bonded to graphene nanoribbons with atomically precise contacts. We use on-surface synthesis to direct the hybrid creation by combining two molec...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5815864/ https://www.ncbi.nlm.nih.gov/pubmed/29464209 http://dx.doi.org/10.1126/sciadv.aaq0582 |
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author | Li, Jingcheng Merino-Díez, Nestor Carbonell-Sanromà, Eduard Vilas-Varela, Manuel de Oteyza, Dimas G. Peña, Diego Corso, Martina Pascual, Jose Ignacio |
author_facet | Li, Jingcheng Merino-Díez, Nestor Carbonell-Sanromà, Eduard Vilas-Varela, Manuel de Oteyza, Dimas G. Peña, Diego Corso, Martina Pascual, Jose Ignacio |
author_sort | Li, Jingcheng |
collection | PubMed |
description | We report on the construction and magnetic characterization of a fully functional hybrid molecular system composed of a single magnetic porphyrin molecule bonded to graphene nanoribbons with atomically precise contacts. We use on-surface synthesis to direct the hybrid creation by combining two molecular precursors on a gold surface. High-resolution imaging with a scanning tunneling microscope finds that the porphyrin core fuses into the graphene nanoribbons through the formation of new carbon rings at chemically predefined positions. These ensure the stability of the hybrid and the extension of the conjugated character of the ribbon into the molecule. By means of inelastic tunneling spectroscopy, we prove the survival of the magnetic functionality of the contacted porphyrin. The molecular spin appears unaffected by the graphenoid electrodes, and we simply observe that the magnetic anisotropy appears modified depending on the precise structure of the contacts. |
format | Online Article Text |
id | pubmed-5815864 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-58158642018-02-20 Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons Li, Jingcheng Merino-Díez, Nestor Carbonell-Sanromà, Eduard Vilas-Varela, Manuel de Oteyza, Dimas G. Peña, Diego Corso, Martina Pascual, Jose Ignacio Sci Adv Research Articles We report on the construction and magnetic characterization of a fully functional hybrid molecular system composed of a single magnetic porphyrin molecule bonded to graphene nanoribbons with atomically precise contacts. We use on-surface synthesis to direct the hybrid creation by combining two molecular precursors on a gold surface. High-resolution imaging with a scanning tunneling microscope finds that the porphyrin core fuses into the graphene nanoribbons through the formation of new carbon rings at chemically predefined positions. These ensure the stability of the hybrid and the extension of the conjugated character of the ribbon into the molecule. By means of inelastic tunneling spectroscopy, we prove the survival of the magnetic functionality of the contacted porphyrin. The molecular spin appears unaffected by the graphenoid electrodes, and we simply observe that the magnetic anisotropy appears modified depending on the precise structure of the contacts. American Association for the Advancement of Science 2018-02-16 /pmc/articles/PMC5815864/ /pubmed/29464209 http://dx.doi.org/10.1126/sciadv.aaq0582 Text en Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Li, Jingcheng Merino-Díez, Nestor Carbonell-Sanromà, Eduard Vilas-Varela, Manuel de Oteyza, Dimas G. Peña, Diego Corso, Martina Pascual, Jose Ignacio Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
title | Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
title_full | Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
title_fullStr | Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
title_full_unstemmed | Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
title_short | Survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
title_sort | survival of spin state in magnetic porphyrins contacted by graphene nanoribbons |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5815864/ https://www.ncbi.nlm.nih.gov/pubmed/29464209 http://dx.doi.org/10.1126/sciadv.aaq0582 |
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