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The effect of ferromagnetic Mn-delta-doped layer on the emission properties of GaAsSb/GaAs and InGaAs/GaAsSb/GaAs heterostructures

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Abstract

We have studied the emission characteristics and circularly polarized electroluminescence of light-emitting diodes based on heterostructures with a single (GaAs/GaAsSb/GaAs) or two-layer (GaAs/InGaAs/GaAsSb/GaAs) quantum well (QW) and a Mn-delta-doped layer in the GaAs barrier. The ferromagnetic effect of the delta-layer of Mn on the spin polarization of carriers in QWs based on type-II heterostructures has been observed and studied for the first time. The observed phenomena are described using a model of the exchange interaction of Mn ions in the barrier and holes in the QW.

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Correspondence to M. V. Dorokhin.

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Original Russian Text © O.V. Vikhrova, M.V. Dorokhin, P.B. Demina, B.N. Zvonkov, A.V. Zdoroveishchev, Yu.A. Danilov, I.L. Kalentyeva, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 20, pp. 96–103.

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Vikhrova, O.V., Dorokhin, M.V., Demina, P.B. et al. The effect of ferromagnetic Mn-delta-doped layer on the emission properties of GaAsSb/GaAs and InGaAs/GaAsSb/GaAs heterostructures. Tech. Phys. Lett. 40, 930–933 (2014). https://doi.org/10.1134/S1063785014100290

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  • DOI: https://doi.org/10.1134/S1063785014100290

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