Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 272, Issue -, Pages 2016-2017Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2003.12.546
Keywords
magnetic alloy semiconductor; quantum well; spin dynamics
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We have studied quantum size effect and spin dynamics in single quantum wells consisting of III-V magnetic alloy semiconductor with different well width. A blue-shift of the broad negative peak observed in magnetic circular dichroism spectra indicates the formation of quantized states in (Ga,Mn)As well layers. Time-resolved Kerr rotation measurements were employed for ferromagnetic SQW to study the influence of lifting the degeneracy between hole sub-bands on the spin dynamics. Significant enhancement in the magnitude of Mn spin rotation was observed. (C) 2003 Elsevier B.V. All rights reserved.
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