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Stability of vortex structures in quantum dots

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Saarikoski, H.
dc.contributor.author Reimann, S. M.
dc.contributor.author Räsänen, E.
dc.contributor.author Harju, A.
dc.contributor.author Puska, Martti J.
dc.date.accessioned 2015-09-18T09:01:28Z
dc.date.available 2015-09-18T09:01:28Z
dc.date.issued 2005
dc.identifier.citation Saarikoski, H. & Reimann, S. M. & Räsänen, E. & Harju, A. & Puska, Martti J. 2005. Stability of vortex structures in quantum dots. Physical Review B. Volume 71, Issue 3. 035421/1-7. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.71.035421. en
dc.identifier.issn 1550-235X (electronic)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/17800
dc.description.abstract We study the stability and structure of vortices emerging in two-dimensional quantum dots in high magnetic fields. Our results obtained with exact diagonalization and density-functional calculations show that vortex structures can be found in various confining potentials. In nonsymmetric external potentials we find off-electron vortices that are localized giving rise to charge deficiency or holes in the electron density with rotating currents around them. We discuss the role of quantum fluctuations and show that vortex formation is observable in the energetics of the system. Our findings suggest that vortices can be used to characterize the solutions in high magnetic fields, giving insight into the underlying internal structure of the electronic wave function. en
dc.format.extent 035421/1-7
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 71, Issue 3
dc.rights © 2005 American Physical Society (APS). This is the accepted version of the following article: Saarikoski, H. & Reimann, S. M. & Räsänen, E. & Harju, A. & Puska, Martti J. 2005. Stability of vortex structures in quantum dots. Physical Review B. Volume 71, Issue 3. 035421/1-7. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.71.035421, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.71.035421. en
dc.subject.other Physics en
dc.title Stability of vortex structures in quantum dots en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword quantum dot en
dc.subject.keyword vortex en
dc.subject.keyword density-functional en
dc.subject.keyword exact diagonalization en
dc.identifier.urn URN:NBN:fi:aalto-201509174294
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physrevb.71.035421
dc.type.version Final published version en


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