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2011 | 120 | 6 | 1056-1060
Article title

Band Edge Energies Pinning in Magnetic Field in Semimagnetic Cd_{0.7}Mn_{0.3}Te

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EN
Abstracts
EN
Results of Cd_{0.7}Mn_{0.3}Te magneto-photoluminescence investigations are analyzed. Photoluminescence was measured in a Voigt geometry at the temperature of 1.6 K. Two models describing radiative transition energy are compared with the experimental results of Cd_{0.7}Mn_{0.3}Te luminescence. The energy of recombination transition, employing the complete form of band states splitting description (term due to the Landau splitting included), shows deviation from experiment at B > 2 T. Two possible reasons of discrepancies from the experiment - exchange interaction constants dependence on magnetic field or band edge energies pinning in magnetic field - are discussed. Band edge energies pinning in magnetic field is related to the hybridization of Mn 3 d^{5} levels with the band states of the host. We determine the corrected values of exchange interaction constants (N_0 α -N_0 β/3) at magnetic fields B < 5 T.
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Contributors
  • Center of Physical Sciences and Technology, A. Goštauto 11, 01108 Vilnius, Lithuania
author
  • Center of Physical Sciences and Technology, A. Goštauto 11, 01108 Vilnius, Lithuania
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv120n613kz
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