Optical properties of the two-dimensional magnetoexcitons under the influence of the Rashba spin-orbit coupling
Proceedings of SPIE - The International Society for Optical Engineering
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/28415
The influence of the Rashba spin-orbit coupling on the two-dimensional (2D) electrons and holes in a strong perpendicular magnetic field leads to different results of the Landau quantization in different spin projections. In Landau gauge the unidimensional wave vector describing the free motion in one in-plane direction is the same for both spin projections, whereas the numbers of the Landau quantization levels are different. For electron in s-type conduction band they differ by one, as was established earlier by Rashba1, whereas for heavy holes in p-type valence band influenced by the 2D symmetry of the layer they differ by three. There are two lowest spin-splitted Landau levels for electrons as well as two lowest for holes. They give rise to four lowest energy levels of the 2D magnetoexcitons. It is shown that two of them are dipole-active in band-to-band quantum transitions, one is quadrupole-active and the fourth is forbidden. The optical orientation under the influence of the circularly polarized light leads to optical alignment of the magnetoexcitons with different orbital momentum projections on the direction of the external magnetic field. © 2011 SPIE.
Showing items related by title, author, creator and subject.
Systematic spatial and stoichiometric screening towards understanding the surface of ultrasmall oxygenated silicon nanocrystal Niaz, S.; Zdetsis, A. D.; Koukaras, E. N.; Gülseren, O.; Sadiq, I. (Elsevier, 2016-11)In most of the realistic ab initio and model calculations which have appeared on the emission of light from silicon nanocrystals, the role of surface oxygen has been usually ignored, underestimated or completely ruled out. ...
Landau quantization of two-dimensional heavy holes, energy spectrum of magnetoexcitons and Auger-recombination lines Podlesny I.V.; Moskalenko, S.A.; Hakioǧlu, T.; Kiselyov, A.A.; Gherciu L. (2013)The Landau quantization of the two-dimensional (2D) heavy holes, its influence on the energy spectrum of 2D magnetoexcitons, as well as their optical orientation are studied. The Hamiltonian of the heavy holes is written ...
Salihoglu O.; Hostut, M.; Tansel, T.; Kutluer, K.; Kilic, A.; Alyoruk, M.; Sevik, C.; Turan, R.; Ergun, Y.; Aydinli, A. (Elsevier, 2013)We report on the development of a new structure for type II superlattice photodiodes that we call the "N" design. In this new design, we insert an electron barrier between InAs and GaSb in the growth direction. The barrier ...