Highly‐polarized emission provided by giant optical orientation of exciton spins in lead halide perovskite crystals

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dc.contributor.authorKopteva, Nataliia E.
dc.contributor.authorYakovlev, Dmitri R.
dc.contributor.authorYalcin, Eyüp
dc.contributor.authorAkimov, Ilya A.
dc.contributor.authorNestoklon, Mikhail O.
dc.contributor.authorGlazov, Mikhail M.
dc.contributor.authorKotur, Mladen
dc.contributor.authorKudlacik, Dennis
dc.contributor.authorZhukov, Evgeny A.
dc.contributor.authorKirstein, Erik
dc.contributor.authorHordiichuk, Oleh
dc.contributor.authorDirin, Dmitry N.
dc.contributor.authorKovalenko, Makysm V.
dc.contributor.authorBayer, Manfred
dc.date.accessioned2025-07-01T12:57:13Z
dc.date.available2025-07-01T12:57:13Z
dc.date.issued2024-06-17
dc.description.abstractQuantum technologic and spintronic applications require reliable material platforms that enable significant and long-living spin polarization of excitations, the ability to manipulate it optically in external fields, and the possibility to implement quantum correlations between spins, i.e., entanglement. Here it is demonstrated that these conditions are met in bulk crystals of lead halide perovskites. A giant optical orientation of 85% of excitons, approaching the ultimate limit of unity, in FA0.9Cs0.1PbI2.8Br0.2 crystals is reported. The exciton spin orientation is maintained during the exciton lifetime of 55 ps resulting in high circular polarization of the exciton emission. The optical orientation is robust to detuning of the excitation energy up to 0.3 eV above the exciton resonance and remains larger than 20% up to detunings of 0.9 eV. It evidences pure chiral selection rules and suppressed spin relaxation of electrons and holes, even with large kinetic energies. The exciton and electron–hole recombinations are distinguished by means of the spin dynamics detected via coherent spin quantum beats in magnetic field. Further, electron–hole spin correlations are demonstrated through linear polarization beats after circularly polarized excitation. These findings are supported by atomistic calculations. All-in-all, the results establish lead halide perovskite semiconductors as suitable platform for quantum technologies.en
dc.identifier.urihttp://hdl.handle.net/2003/43782
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-25556
dc.language.isoen
dc.relation.ispartofseriesAdvanced science; 11(31)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectexcitonsen
dc.subjectlead halide perovskitesen
dc.subjectmagneto-photoluminescenceen
dc.subjectoptical spin orientationen
dc.subjectspintronicsen
dc.subjecttime-resolved photoluminescenceen
dc.subject.ddc530
dc.titleHighly‐polarized emission provided by giant optical orientation of exciton spins in lead halide perovskite crystalsen
dc.typeText
dc.type.publicationtypeResearchArticle
dcterms.accessRightsopen access
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationN. E. Kopteva, D. R. Yakovlev, E. Yalcin, I. A. Akimov, M. O. Nestoklon, M. M. Glazov, M. Kotur, D. Kudlacik, E. A. Zhukov, E. Kirstein, O. Hordiichuk, D. N. Dirin, M. V. Kovalenko, M. Bayer, Highly-Polarized Emission Provided by Giant Optical Orientation of Exciton Spins in Lead Halide Perovskite Crystals. Adv. Sci. 2024, 11, 2403691. https://doi.org/10.1002/advs.202403691
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/advs.202403691

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