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In-gap corner states in core-shell polygonal quantum rings
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| Titill: | In-gap corner states in core-shell polygonal quantum rings |
| Höfundur: |
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| Útgáfa: | 2017-01-10 |
| Tungumál: | Enska |
| Umfang: | 40197 |
| Háskóli/Stofnun: | Háskóli Íslands University of Iceland Háskólinn í Reykjavík Reykjavik University |
| Svið: | Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Tækni- og verkfræðideild (HR) School of Science and Engineering (RU) |
| Deild: | Raunvísindastofnun (HÍ) Science Institute (UI) |
| Birtist í: | Scientific Reports;7 |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/srep40197 |
| Efnisorð: | Condensed matter physics; Theoretical physics; Eðlisfræði; Kenningar |
| URI: | https://hdl.handle.net/20.500.11815/296 |
Tilvitnun:Sitek, A. et al. In-gap corner states in core-shell polygonal quantum rings. Sci. Rep. 7, 40197; doi: 10.1038/srep40197 (2017).
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Útdráttur: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.
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Leyfi:This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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