Anionic character of the conduction band of sodium chloride

The alkali halides are ionic compounds. Each alkali atom donates an electron to a halogen atom, leading to ions with full shells. The valence band is mainly located on halogen atoms, while, in a traditional picture, the conduction band is mainly located on alkali atoms. Scanning tunnelling microscop...

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Autores principales: Leon, Christopher C., Grewal, Abhishek, Kuhnke, Klaus, Kern, Klaus, Gunnarsson, Olle
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8861091/
https://www.ncbi.nlm.nih.gov/pubmed/35190545
http://dx.doi.org/10.1038/s41467-022-28392-8
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author Leon, Christopher C.
Grewal, Abhishek
Kuhnke, Klaus
Kern, Klaus
Gunnarsson, Olle
author_facet Leon, Christopher C.
Grewal, Abhishek
Kuhnke, Klaus
Kern, Klaus
Gunnarsson, Olle
author_sort Leon, Christopher C.
collection PubMed
description The alkali halides are ionic compounds. Each alkali atom donates an electron to a halogen atom, leading to ions with full shells. The valence band is mainly located on halogen atoms, while, in a traditional picture, the conduction band is mainly located on alkali atoms. Scanning tunnelling microscopy of NaCl at 4 K actually shows that the conduction band is located on Cl(−) because the strong Madelung potential reverses the order of the Na(+) 3s and Cl(−) 4s levels. We verify this reversal is true for both atomically thin and bulk NaCl, and discuss implications for II-VI and I-VII compounds.
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spelling pubmed-88610912022-03-17 Anionic character of the conduction band of sodium chloride Leon, Christopher C. Grewal, Abhishek Kuhnke, Klaus Kern, Klaus Gunnarsson, Olle Nat Commun Article The alkali halides are ionic compounds. Each alkali atom donates an electron to a halogen atom, leading to ions with full shells. The valence band is mainly located on halogen atoms, while, in a traditional picture, the conduction band is mainly located on alkali atoms. Scanning tunnelling microscopy of NaCl at 4 K actually shows that the conduction band is located on Cl(−) because the strong Madelung potential reverses the order of the Na(+) 3s and Cl(−) 4s levels. We verify this reversal is true for both atomically thin and bulk NaCl, and discuss implications for II-VI and I-VII compounds. Nature Publishing Group UK 2022-02-21 /pmc/articles/PMC8861091/ /pubmed/35190545 http://dx.doi.org/10.1038/s41467-022-28392-8 Text en © The Author(s) 2022 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 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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Leon, Christopher C.
Grewal, Abhishek
Kuhnke, Klaus
Kern, Klaus
Gunnarsson, Olle
Anionic character of the conduction band of sodium chloride
title Anionic character of the conduction band of sodium chloride
title_full Anionic character of the conduction band of sodium chloride
title_fullStr Anionic character of the conduction band of sodium chloride
title_full_unstemmed Anionic character of the conduction band of sodium chloride
title_short Anionic character of the conduction band of sodium chloride
title_sort anionic character of the conduction band of sodium chloride
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8861091/
https://www.ncbi.nlm.nih.gov/pubmed/35190545
http://dx.doi.org/10.1038/s41467-022-28392-8
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