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dc.contributor.authorCilibrizzi, P.
dc.contributor.authorSigurdsson, H.
dc.contributor.authorLiew, T. C. H.
dc.contributor.authorOhadi, H.
dc.contributor.authorAskitopoulos, A.
dc.contributor.authorBrodbeck, S.
dc.contributor.authorSchneider, C.
dc.contributor.authorShelykh, I. A.
dc.contributor.authorHöfling, Sven
dc.contributor.authorRuostekoski, J.
dc.contributor.authorLagoudakis, P.
dc.identifier.citationCilibrizzi , P , Sigurdsson , H , Liew , T C H , Ohadi , H , Askitopoulos , A , Brodbeck , S , Schneider , C , Shelykh , I A , Höfling , S , Ruostekoski , J & Lagoudakis , P 2016 , ' Half-skyrmion spin textures in polariton microcavities ' , Physical Review. B, Condensed matter and materials physics , vol. 94 , no. 4 , 045315 .
dc.identifier.otherPURE: 243730067
dc.identifier.otherPURE UUID: dc870db3-16b5-4da2-8a30-3f6b8dcd47fe
dc.identifier.otherScopus: 84980376556
dc.identifier.otherWOS: 000381484500009
dc.descriptionP.C., S.H. and P.L. acknowledge support by the Engineering and Physical Sciences Research Council of UK through the \Hybrid Polaritonics" Program Grant (Project EP/M025330/1). H.S. and I.A.S acknowledge the support from Rannis projects BOFEHYSS and Singaporean Ministry of Education under AcRF Tier 2 grant MOE2015-T2-1-055. I.A.S. thanks 5-100 program of Russian Federal Government.en
dc.description.abstractWe study the polarization dynamics of a spatially expanding polariton condensate under nonresonant linearly polarized optical excitation. The spatially and temporally resolved polariton emission reveals the formation of non-trivial spin textures in the form of a quadruplet polarization pattern both in the linear and circular Stokes parameters, and an octuplet in the diagonal Stokes parameter. The continuous rotation of the polariton pseudospin vector through the condensate due to TE-TM splitting exhibits an ordered pattern of half-skyrmions associated with a half-integer topological number. A theoretical model based on a driven-dissipative Gross-Pitaevskii equation coupled with an exciton reservoir describes the dynamics of the nontrivial spin textures through the optical spin-Hall effect.
dc.relation.ispartofPhysical Review. B, Condensed matter and materials physicsen
dc.rights© 2016 American Physical Society. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQC Physicsen
dc.titleHalf-skyrmion spin textures in polariton microcavitiesen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.description.statusPeer revieweden

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