4.1 Article Proceedings Paper

Spin relaxation processes in quantum well structures of Cd1-xMnxTe/Cd1-xMgxTe

Journal

ACTA PHYSICA POLONICA A
Volume 102, Issue 4-5, Pages 643-648

Publisher

POLISH ACAD SCIENCES INST PHYSICS
DOI: 10.12693/APhysPolA.102.643

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Fast spin relaxation of Mn2+ ions in a magnetic quantum well of CdMnTe with 1% Mn fraction is related to a very efficient spin-flip interaction between Mn ions and free carriers. This mechanism of spin relaxation becomes dominant at increased excitation densities. The observed response of the photoluminescence bands to the Mn2+ magnetic resonance indicates that free carriers. are heated at the magnetic resonance conditions. A decrease in formation /recombination rates of free and trion excitons is observed. Donor bound exciton photoluminescence is enhanced, which we relate to delocalization of free excitons, caused by interaction with microwave heated free carriers.

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