Unambiguous symmetry assignment for the top valence band of ZnO by magneto-optical studies of the free A-exciton state

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dc.creatorDing, Lu
dc.creatorYang, Chunlei
dc.creatorHe, Hongtao
dc.creatorJiang, Fengyi
dc.creatorWang, Jiannong
dc.creatorTang, Zikang
dc.creatorForeman, Bradley A.
dc.creatorGe, Weikun
dc.date2007-06-27
dc.date.accessioned2026-07-07T08:12:38Z
dc.date.available2026-07-07T08:12:38Z
dc.descriptionWe studied the circular polarization and angular dependences of the magneto-photoluminescence spectra of the free A-exciton 1S state in wurtzite ZnO at T = 5 K. The circular polarization properties of the spectra clearly indicate that the top valence band has Gamma_7 symmetry. The out-of-plane component of the magnetic field, which is parallel to the sample's c axis, leads to linear Zeeman splitting of both the dipole-allowed Gamma_5 exciton state and the weakly allowed Gamma_1/Gamma_2 exciton states. The in-plane field, which is perpendicular to the c axis, increases the oscillator strength of the weak Gamma_1/Gamma_2 states by forming a mixed exciton state.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0706.3965
dc.identifierhttp://arxiv.org/abs/0706.3965
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132521
dc.subjectMaterials Science
dc.titleUnambiguous symmetry assignment for the top valence band of ZnO by magneto-optical studies of the free A-exciton state
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