The Effect of Intense Terahertz Laser Radiation on Magnetization of Semiconductor Quantum Ring

In this paper the combined effect of intense terahertz laser radiation and external homogeneous magnetic field on electron states and magnetization of GaAs quantum ring is investigated theoretically. The effect of laser field is calculated using the dipole approximation and Kramers–Henneberger unitary transformation. The temperature effect on magnetization of the system is also considered. It is shown that with the increase of laser field parameter the unusual Aharonov–Bohm oscillations can be observed in the ring. For constant values of magnetic field, the magnetization can be as increasing, as well as decreasing function of temperature. There are some resonant values of magnetic field, for which the magnetization of the ring remains almost constant with the increase of temperature.