In-gap corner states in core-shell polygonal quantum rings
We study Coulomb interacting electrons confined in polygonal quantum rings. We focus on the interplay of localization at the polygon corners and Coulomb repulsion. Remarkably, the Coulomb repulsion allows the formation of in-gap states, i.e., corner-localized states of electron pairs or clusters shi...
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Online Access: | http://hdl.handle.net/10261/173517 https://doi.org/10.1038/srep40197 |
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ftcsic:oai:digital.csic.es:10261/173517 2024-02-11T10:05:04+01:00 In-gap corner states in core-shell polygonal quantum rings Sitek, Anna Ţolea, Mugurel Niţă, Marian Serra, Llorenç Gudmundsson, Vidar Manolescu, Andrei University of Iceland Icelandic Research Fund 2017-01-10 http://hdl.handle.net/10261/173517 https://doi.org/10.1038/srep40197 en eng Springer Nature Publisher's version https://doi.org/10.1038/srep40197 Sí Scientific Reports 7: 40197 (2017) http://hdl.handle.net/10261/173517 doi:10.1038/srep40197 2045-2322 28071750 open artículo http://purl.org/coar/resource_type/c_6501 2017 ftcsic https://doi.org/10.1038/srep40197 2024-01-16T10:34:44Z We study Coulomb interacting electrons confined in polygonal quantum rings. We focus on the interplay of localization at the polygon corners and Coulomb repulsion. Remarkably, the Coulomb repulsion allows the formation of in-gap states, i.e., corner-localized states of electron pairs or clusters shifted to energies that were forbidden for non-interacting electrons, but below the energies of corner-side-localized states. We specify conditions allowing optical excitation to those states. This work was financed by the Research Fund of the University of Iceland and the Icelandic Research Fund. Peer reviewed Article in Journal/Newspaper Iceland Digital.CSIC (Spanish National Research Council) Scientific Reports 7 1 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
language |
English |
description |
We study Coulomb interacting electrons confined in polygonal quantum rings. We focus on the interplay of localization at the polygon corners and Coulomb repulsion. Remarkably, the Coulomb repulsion allows the formation of in-gap states, i.e., corner-localized states of electron pairs or clusters shifted to energies that were forbidden for non-interacting electrons, but below the energies of corner-side-localized states. We specify conditions allowing optical excitation to those states. This work was financed by the Research Fund of the University of Iceland and the Icelandic Research Fund. Peer reviewed |
author2 |
University of Iceland Icelandic Research Fund |
format |
Article in Journal/Newspaper |
author |
Sitek, Anna Ţolea, Mugurel Niţă, Marian Serra, Llorenç Gudmundsson, Vidar Manolescu, Andrei |
spellingShingle |
Sitek, Anna Ţolea, Mugurel Niţă, Marian Serra, Llorenç Gudmundsson, Vidar Manolescu, Andrei In-gap corner states in core-shell polygonal quantum rings |
author_facet |
Sitek, Anna Ţolea, Mugurel Niţă, Marian Serra, Llorenç Gudmundsson, Vidar Manolescu, Andrei |
author_sort |
Sitek, Anna |
title |
In-gap corner states in core-shell polygonal quantum rings |
title_short |
In-gap corner states in core-shell polygonal quantum rings |
title_full |
In-gap corner states in core-shell polygonal quantum rings |
title_fullStr |
In-gap corner states in core-shell polygonal quantum rings |
title_full_unstemmed |
In-gap corner states in core-shell polygonal quantum rings |
title_sort |
in-gap corner states in core-shell polygonal quantum rings |
publisher |
Springer Nature |
publishDate |
2017 |
url |
http://hdl.handle.net/10261/173517 https://doi.org/10.1038/srep40197 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Publisher's version https://doi.org/10.1038/srep40197 Sí Scientific Reports 7: 40197 (2017) http://hdl.handle.net/10261/173517 doi:10.1038/srep40197 2045-2322 28071750 |
op_rights |
open |
op_doi |
https://doi.org/10.1038/srep40197 |
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Scientific Reports |
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7 |
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1 |
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1790601916503293952 |