Abstract
Spin polarization in an InAs quantum dot subjected to terahertz (THz) irradiation and external magnetic fields is theoretically discussed. Spin-polarized oscillations and spin polarization plateaus are obtained, depending on the relative magnitude between the external magnetic field strength and the THz photon energy. Furthermore, we show that the oscillation of spin polarization is also related to the THz irradiation amplitude. These features may be beneficial for low magnetic field detectors, ultrasensitive THz detectors or spin-selective applications.
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