In-gap corner states in core-shell polygonal quantum rings

Sitek, Anna; Ţolea, Mugurel; Niţă, Marian; Serra, Llorenç; Gudmundsson, Vidar; Manolescu, Andrei

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dc.contributor	Háskóli Íslands
dc.contributor	University of Iceland
dc.contributor	Háskólinn í Reykjavík
dc.contributor	Reykjavik University
dc.contributor.author	orcid.org/0000-0002-0602-1959 Sitek, Anna
dc.contributor.author	Ţolea, Mugurel
dc.contributor.author	Niţă, Marian
dc.contributor.author	Serra, Llorenç
dc.contributor.author	orcid.org/0000-0001-8939-3522 Gudmundsson, Vidar
dc.contributor.author	orcid.org/0000-0002-0713-4664 Manolescu, Andrei
dc.date.accessioned	2017-06-09T15:40:56Z
dc.date.available	2017-06-09T15:40:56Z
dc.date.issued	2017-01-10
dc.identifier.citation	Sitek, A. et al. In-gap corner states in core-shell polygonal quantum rings. Sci. Rep. 7, 40197; doi: 10.1038/srep40197 (2017).
dc.identifier.issn	2045-2322
dc.identifier.uri	https://hdl.handle.net/20.500.11815/296
dc.description.abstract	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.
dc.description.sponsorship	This work was financed by the Research Fund of the University of Iceland and the Icelandic Research Fund
dc.format.extent	40197
dc.language.iso	en
dc.publisher	Springer Nature
dc.relation.ispartofseries	Scientific Reports;7
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Condensed matter physics
dc.subject	Theoretical physics
dc.subject	Eðlisfræði
dc.subject	Kenningar
dc.title	In-gap corner states in core-shell polygonal quantum rings
dc.type	info:eu-repo/semantics/article
dcterms.license	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/
dc.description.version	Peer Reviewed
dc.identifier.journal	Scientific Reports
dc.identifier.doi	10.1038/srep40197
dc.relation.url	https://www.nature.com/articles/srep40197
dc.contributor.department	Raunvísindastofnun (HÍ)
dc.contributor.department	Science Institute (UI)
dc.contributor.school	Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school	School of Engineering and Natural Sciences (UI)
dc.contributor.school	Tækni- og verkfræðideild (HR)
dc.contributor.school	School of Science and Engineering (RU)