Coherent spin dynamics of electrons and excitons in nanostructures
arXiv:1201.0604 · doi:10.1134/S1063783412010143
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.
Review, 25 pages, 18 figures; Physics of the Solid State 54, 1 (2012)
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- Exciton Valley Dynamics probed by Kerr Rotation in WSe2 Monolayers
- Coherent spin dynamics of electrons and holes in CsPbBr perovskite crystals
- Room-temperature chiral charge pumping in Dirac semimetals
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