Abstract.
Spin-dependent Floquet scattering theory is developed to investigate the photon-assisted spin-polarized electron transport through a semiconductor heterostructure in the presence of an external electric field. Spin-dependent Fano resonances and spin-polarized electron transport through a laser irradiated time-periodic non-magnetic heterostructure in the presence of Dresselhaus spin-orbit interaction and a gate-controlled Rashba spin-orbit interaction are investigated. The electric field due to laser along with the spin-orbit interactions help to get spin-dependent Fano resonances in the conductance, whereas the external bias can be appropriately adjusted to get a near 80% spin-polarized electron transmission through heterostructures. The resultant nature of the Floquet scattering depends on the relative strength of these two electric fields.
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Gnanasekar, K., Navaneethakrishnan, K. Spin-polarized transport through a time-periodic non-magnetic semiconductor heterostructure. Eur. Phys. J. B 53, 455–461 (2006). https://doi.org/10.1140/epjb/e2006-00404-6
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DOI: https://doi.org/10.1140/epjb/e2006-00404-6