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Photoluminescence of ZnMnTe quantum-well structures in a magnetic field |
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| Authors: | V N Kats V P Kochereshko V F Agekyan L Besombes G Karczewski |
| Institution: | 1.St. Petersburg State University,St. Petersburg,Russia;2.Ioffe Physicotechnical Institute,Russian Academy of Sciences,St. Petersburg,Russia;3.Fock Institute of Physics,St. Petersburg State University,St. Petersburg, Petrodvorets,Russia;4.Laboratoire de Spectrométrie Physique,Université Fourier de Grenoble,Grenoble,France;5.Institute of Physics,Polish Academy of Sciences,Warsaw,Poland |
| Abstract: | Photoluminescence spectra of strained structures Zn1 ? x Mn x Te/Zn1 ? y Mg y Te with magnetic quantum wells and nonmagnetic barriers are studied. The Zeeman splitting of the heavy exciton is found to follow an unusual behavior: both spin components shift down in energy. The heavy-exciton photoluminescence Zeeman components are observed to be inversely distributed in intensity, with the higher energy component being stronger than the lower energy component. The Zeeman splitting of the exciton in a magnetic field is calculated. The data obtained permit refinement of some parameters of the energy spectrum and magnetic properties of these structures. |
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