Atomic ordering and bond relaxation in optical spectra of self-organized InP/GaInP2 Wigner molecule structures

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dc.contributor.author Mintairov, A. M.
dc.contributor.author Lebedev, D. V.
dc.contributor.author Bert, N.
dc.contributor.author Belyaev, K. G.
dc.contributor.author Nevedomskiy, V. N.
dc.contributor.author Rakhlin, M. V.
dc.contributor.author Toropov, A. A.
dc.contributor.author Vlasov, A. S.
dc.contributor.author Gocalinska, Agnieszka
dc.contributor.author Juska, Gediminas
dc.contributor.author Pelucchi, Emanuele
dc.contributor.author Arredondo, M. A.
dc.contributor.author Naden, A. B.
dc.contributor.author Shelaev, A. V.
dc.contributor.author Bykov, V. A.
dc.date.accessioned 2019-12-09T12:13:35Z
dc.date.available 2019-12-09T12:13:35Z
dc.date.issued 2019-11-12
dc.identifier.citation Mintairov, A. M., Lebedev, D. V., Bert, N., Belyaev, K. G., Nevedomskiy, V. N., Rakhlin, M. V., Toropov, A. A., Vlasov, A. S., Gocalinska, A., Juska, G., Pelucchi, E., Arredondo, M. A., Naden, A. B., Shelaev, A. V. and Bykov, V. A. (2019) 'Atomic ordering and bond relaxation in optical spectra of self-organized InP/GaInP2 Wigner molecule structures', Applied Physics Letters, 115(20), 202104. (6pp.) doi: 10.1063/1.5126527 en
dc.identifier.volume 115 en
dc.identifier.issued 20 en
dc.identifier.startpage 1 en
dc.identifier.endpage 6 en
dc.identifier.issn 0003-6951
dc.identifier.uri http://hdl.handle.net/10468/9363
dc.identifier.doi 10.1063/1.5126527 en
dc.description.abstract We used transmission electron microscopy, Raman, and photoluminescence spectroscopy to identify the effect of CuPt-type GaP-InP atomic ordering (AO) on the structural and emission properties of self-organized (SO) InP/GaInP2 Wigner molecule (WM) quantum dot (QD) structures. We found that the correlation of AO and SO growth results in the formation of InP/GaInP2 QD/AO-domain (QD/AOD) core-shell composites. This observation shows that intrinsic WMs in this system emerge due to a strong piezoelectric field generated by AODs, which induces QD doping and a built-in magnetic field. We found that the bond relaxation of AODs leads to a decrease in the emission energy of WMs of 80 meV. The photoluminescence spectra of single WMs having an emission energy ∼1.53 eV are presented here, the lowest one reported for this system. en
dc.description.sponsorship Russian Science Foundation (Grant No. 19-19-00246); Russian Foundation for Basic Research (Project No. 18-02-01212); Science Foundation Ireland (Grant Nos. 15/IA/2864. 12/RC/2276-P2, and 18/US/3512); Northern Ireland Department for the Economy (Grant No. USI-140) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Institute of Physics Inc. en
dc.rights ©2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http:// creativecommons.org/licenses/by/4.0/ en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject Atomic ordering en
dc.subject Bond relaxation en
dc.subject Optical spectra en
dc.subject InP/GaInP2 en
dc.subject Wigner molecule structures en
dc.title Atomic ordering and bond relaxation in optical spectra of self-organized InP/GaInP2 Wigner molecule structures en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Agnieszka Gocalinska, Tyndall National Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email:agnieszka.gocalinska@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder Российский Фонд Фундаментальных Исследований (РФФИ) en
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Northern Ireland Department for the Economy en
dc.contributor.funder Engineering and Physical Sciences Research Council en
dc.contributor.funder Russian Science Foundation en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Applied Physics Letters en
dc.internal.IRISemailaddress agnieszka.gocalinska@tyndall.ie en
dc.identifier.articleid 202104 en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/ en
dc.relation.project info:eu-repo/grantAgreement/RCUK/EPSRC/EP/R023751/1/GB/Electron Microscopy for the Characterisation and Manipulation of Advanced Functional Materials and their Interfaces at the Nanoscale/ en
dc.identifier.eissn 1077-3118


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©2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http:// creativecommons.org/licenses/by/4.0/ Except where otherwise noted, this item's license is described as ©2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http:// creativecommons.org/licenses/by/4.0/
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