Coherent spin dynamics of electrons and excitons in nanostructures (a review) |
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Authors: | M M Glazov |
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Institution: | 1.Ioffe Physical-Technical Institute,Russian Academy of Sciences,St. Petersburg,Russia |
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Abstract: | The studies of spin phenomena in semiconductor low-dimensional systems have grown into the rapidly developing area of the
condensed matter physics: spintronics. The most urgent problems in this area, both fundamental and applied, are the creation
of charge carrier spin polarization and its detection, as well as electron spin control by nonmagnetic methods. Here, we present
a review of recent achievements in the studies of spin dynamics of electrons, holes, and their complexes in the pump-probe
method. The microscopic mechanisms of spin orientation of charge carriers and their complexes by short circularly polarized
optical pulses and the formation processes of the spin signals of Faraday and Kerr rotation of the probe pulse polarization
plane as well as induced ellipticity are discussed. A special attention is paid to the comparison of theoretical concepts
with experimental data obtained on the n-type quantum well and quantum dot array samples. |
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