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Publication
Surface Science
Paper
Magnetic observations of carrier quantization and dimensional crossover in diluted magnetic semiconductor superlattices
Abstract
Diluted magnetic semiconductors have been shown to be excellent hosts in which to study the fundamental exchange interaction of a carrier with localized fluctuating magnetic spins. New low-temperature optical spectroscopy techniques using integrated DC SQUIDs have allowed sensitive magnetization studies in Cd1-x MnxTe superlattices as the magnetic layer thickness was systematically reduced towards the two-dimensional limit. Static and picosecond measurements reveal the magnetic manifestations of carrier localization in these electronic quantum wells. © 1990.