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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...

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Autores principales: Park, Jae Whan, Kim, Hyo Sung, Brumme, Thomas, Heine, Thomas, Yeom, Han Woong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
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.
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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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