Abstract
Exciton-polaron formation in GaGdN/AlGaN multiquantum wells was inferredfrom the lower energy of the photoluminescence peak observed for the GaGdNquantum wells (QWs) compared with GaN QWs. The rather low value of theexcitonic transition energy is attributed to exciton-polarons bound to the Gdions. Exciton-polarons are most likely to occur due to the lattice distortionaround the substituted Gd ions in addition to the exchange interaction betweenGd3 + magnetic ions and the strongly confined charge carrier spins in GaGdN QWs. Themechanism of exciton-polaron formation is discussed. The magnetic behavior is brieflypresented.
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Schedule a callMore From: Journal of physics. Condensed matter : an Institute of Physics journal
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