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Spin polarized semimagnetic exciton-polariton condensate in magnetic field

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cris.lastimport.scopus2024-02-12T19:48:34Z
dc.abstract.enOwing to their integer spin, exciton-polaritons in microcavities can be used for observation of non-equilibrium Bose-Einstein condensation in solid state. However, spin-related phenomena of such condensates are difficult to explore due to the relatively small Zeeman effect of standard semiconductor microcavity systems and the strong tendency to sustain an equal population of two spin components, which precludes the observation of condensates with a well defined spin projection along the axis of the system. The enhancement of the Zeeman splitting can be achieved by introducing magnetic ions to the quantum wells, and consequently forming semimagnetic polaritons. In this system, increasing magnetic field can induce polariton condensation at constant excitation power. Here we evidence the spin polarization of a semimagnetic polaritons condensate exhibiting a circularly polarized emission over 95\% even in a moderate magnetic field of about 3 T. Furthermore, we show that unlike nonmagnetic polaritons, an increase on excitation power results in an increase of the semimagnetic polaritons condensate spin polarization. These properties open new possibilities for testing theoretically predicted phenomena of spin polarized condensate.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPiętka, Barbara
dc.contributor.authorPacuski, Wojciech
dc.contributor.authorMirek, Rafał
dc.contributor.authorStephan, Daniel
dc.contributor.authorKról, Mateusz
dc.contributor.authorSzczytko, Jacek
dc.contributor.authorLekenta, Katarzyna
dc.contributor.authorNawrocki, Michał
dc.contributor.authorRousset, Jean-Guy
dc.contributor.authorMatuszewski, Michał
dc.date.accessioned2024-01-26T07:57:01Z
dc.date.available2024-01-26T07:57:01Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.volume8
dc.identifier.doi10.1038/S41598-018-25018-2
dc.identifier.issn2045-2322
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/120391
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofScientific Reports
dc.relation.pages6694-1 - 7
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleSpin polarized semimagnetic exciton-polariton condensate in magnetic field
dc.typeJournalArticle
dspace.entity.typePublication