Cr2+(3d4) absorption in GaAs |
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| Authors: | B. Clerjaud A.M. Hennel G. Martinez |
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| Affiliation: | Laboratoire de Luminescence II, équipe de recherche associée au CNRS, Université Pierre et Marie Curie, 4, place Jussieu, 75230 Paris Cedex 05, France;Laboratoire de Physique des Solides associé au CNRS, Université Pierre et Marie Curie, 4, place Jussieu, 75230 Paris Cedex 05, France |
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| Abstract: | We report the observation of the zero-phonon structure of the 0.9 eV absorption in GaAs: Cr, which correspond to intracenter Cr2+ transition. This result and the existence of the stable Cr2+ state in our n-type GaAs: Cr samples, allow to consider that Cr2+ is the dominant chromium state in these crystals. |
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