Excitonic properties of Cd1-xMnxTe quantum wells grown by molecular beam epitaxy

Time-resolved photoluminescence has been studied in molecular beam epitaxy grown Cd1-xMnxTe/Cd1-yMgyTe and CdTe/Cd1-xMnxTe single and multiple quantum wells. The excitonic properties were investigated at several temperatures and magnetic fields. The dynamics of the exciton magnetic polaron are great ly influenced by the quantum confinement of the excitons in the single quan tum wells. The formation of a spin superlattice structure was realized in C d0.95Mn0.05Te/Cd0.95Mg0.05Te multi-quantum wells under an external magnetic field. (C) 2001 Elsevier Science B.V. All rights reserved.