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Artificial relativistic molecules
We fabricate artificial molecules composed of heavy atom lead on a van der Waals crystal. Pb atoms templated on a honeycomb charge-order superstructure of IrTe(2) form clusters ranging from dimers to heptamers including benzene-shaped ring hexamers. Tunneling spectroscopy and electronic structure ca...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010783/ https://www.ncbi.nlm.nih.gov/pubmed/32041955 http://dx.doi.org/10.1038/s41467-020-14635-z |
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author | Park, Jae Whan Kim, Hyo Sung Brumme, Thomas Heine, Thomas Yeom, Han Woong |
author_facet | Park, Jae Whan Kim, Hyo Sung Brumme, Thomas Heine, Thomas Yeom, Han Woong |
author_sort | Park, Jae Whan |
collection | PubMed |
description | We fabricate artificial molecules composed of heavy atom lead on a van der Waals crystal. Pb atoms templated on a honeycomb charge-order superstructure of IrTe(2) form clusters ranging from dimers to heptamers including benzene-shaped ring hexamers. Tunneling spectroscopy and electronic structure calculations reveal the formation of unusual relativistic molecular orbitals within the clusters. The spin–orbit coupling is essential both in forming such Dirac electronic states and stabilizing the artificial molecules by reducing the adatom–substrate interaction. Lead atoms are found to be ideally suited for a maximized relativistic effect. This work initiates the use of novel two-dimensional orderings to guide the fabrication of artificial molecules of unprecedented properties. |
format | Online Article Text |
id | pubmed-7010783 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-70107832020-02-12 Artificial relativistic molecules Park, Jae Whan Kim, Hyo Sung Brumme, Thomas Heine, Thomas Yeom, Han Woong Nat Commun Article We fabricate artificial molecules composed of heavy atom lead on a van der Waals crystal. Pb atoms templated on a honeycomb charge-order superstructure of IrTe(2) form clusters ranging from dimers to heptamers including benzene-shaped ring hexamers. Tunneling spectroscopy and electronic structure calculations reveal the formation of unusual relativistic molecular orbitals within the clusters. The spin–orbit coupling is essential both in forming such Dirac electronic states and stabilizing the artificial molecules by reducing the adatom–substrate interaction. Lead atoms are found to be ideally suited for a maximized relativistic effect. This work initiates the use of novel two-dimensional orderings to guide the fabrication of artificial molecules of unprecedented properties. Nature Publishing Group UK 2020-02-10 /pmc/articles/PMC7010783/ /pubmed/32041955 http://dx.doi.org/10.1038/s41467-020-14635-z Text en © The Author(s) 2020 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Park, Jae Whan Kim, Hyo Sung Brumme, Thomas Heine, Thomas Yeom, Han Woong Artificial relativistic molecules |
title | Artificial relativistic molecules |
title_full | Artificial relativistic molecules |
title_fullStr | Artificial relativistic molecules |
title_full_unstemmed | Artificial relativistic molecules |
title_short | Artificial relativistic molecules |
title_sort | artificial relativistic molecules |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010783/ https://www.ncbi.nlm.nih.gov/pubmed/32041955 http://dx.doi.org/10.1038/s41467-020-14635-z |
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