Anomalous circular polarization of magneto-photoluminescence from individual CdSe nanocrystals

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dc.creatorHtoon, H.
dc.creatorCrooker, S. A.
dc.creatorFuris, M.
dc.creatorJeong, S.
dc.creatorEfros, Al. L.
dc.creatorKlimov, V. I.
dc.date2008-09-05
dc.date.accessioned2026-07-07T12:48:23Z
dc.date.available2026-07-07T12:48:23Z
dc.descriptionWe study the low-temperature magneto-photoluminescence (PL) from individual CdSe nanocrystals. Nanocrystals having a small "bright" exciton fine structure splitting ($<$0.5 meV) exhibit a conventional left- and right-circularly polarized Zeeman PL doublet in applied magnetic fields. In contrast, nanocrystals with large fine structure splitting ($>$1 meV) show an anomalous magneto-PL polarization, wherein the lower-energy peak becomes circularly polarized with increasing field, while the higher-energy peak remains linearly polarized. This unusual behavior arises from strong mixing between the absorbing and emitting bright exciton levels due to strong anisotropic exchange interactions.
dc.description15 pages, 3 figures; submitted
dc.identifierhttps://arxiv.org/abs/0809.1116
dc.identifierhttp://arxiv.org/abs/0809.1116
dc.identifierPhysical Review Letters 102, 017402 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.017402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222037
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleAnomalous circular polarization of magneto-photoluminescence from individual CdSe nanocrystals
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