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Type: Artigo de periódico
Title: Effects Of A Nearby Mn Delta Layer On The Optical Properties Of An Ingaas/gaas Quantum Well
Author: Balanta M.A.G.
Brasil M.J.S.P.
Iikawa F.
Brum J.A.
Mendes U.C.
Danilov Yu.A.
Dorokhin M.V.
Vikhrova O.V.
Zvonkov B.N.
Abstract: We investigated the effects of nearby Mn ions on the confined states of a InGaAs/GaAs quantum well through circularly polarized and magneto-optical measurements. The addition of a Mn delta-doping layer at the barrier close to the well gives rise to surprisingly narrow absorption peaks in the photoluminescence excitation spectra. The peaks become increasingly stronger for decreasing spacer-layer thicknesses between the quantum well and the Mn layer. Most of the peaks were identified based on self-consistent calculations; however, we observed additional peaks that cannot be identified with quantum well transitions, which origin we attribute to an enhanced exciton-phonon coupling. Finally, we discuss possible effects related to the exciton magneto-polaron complex in the reinforcement of the photoluminescence excitation peaks.
Editor: American Institute of Physics Inc.
Citation: Journal Of Applied Physics. American Institute Of Physics Inc., v. 116, n. 20, p. - , 2014.
Rights: aberto
Identifier DOI: 10.1063/1.4902857
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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