Programme

P.57 -- Poster, VCTP-45

Date: Tuesday, 13 October 2020

Time: 08:30 - 10:00

Rectangular Quantum Wire with an Infinite potential GaAs/AlGaAs: Quantum theory of Acoustomagnetoelectric effect in the presence of Electromagnetic wave

Nguyễn Thu Hương, Nguyễn Văn Nghĩa, Nguyễn Quyết Thắng, Nguyễn Quang Báu

Đồng tác giả

The effect of Acoustomagnetoelectric in an GaAs/Al:GaAs infinite potential rectangular quantum wire (RQW) is investigated under the influence of ElectromagneticWave (EMW) in term of using quantum kinetic equation method. We obtain the electron distribution function in the reaction with internal and external phonon. By solving the electron distribution inhomogeneous differential equation, the current density J and the acoustomagnetoelectric field EAME are obtained in the dependence on the EMW amplitude, external acoustic wave frequency, the system temperature and the RQW parameter (the quantum wire length). The results are numerically evaluated for GaAs/Al:GaAs quantum wire. Comparison it to the results which is obtained in case of the bulk semiconductors and others lowdimension system in order to show the difference and the novelty of the results. The EAME depends non-linearly on the Wire Length Lz and exhibits an oscillatory behavior as the function of wire length, although the stability period in long wire length condition. Moreover, we survey the impact of EMW on EAME with the dependence on the external acoustic wave frequency wq. The result also indicates that the current density J increases as the temperature goes up with a exponential curved.

Presenter: Nguyễn Quyết Thắng

Presentation file: