Program

P.4 -- Poster, NCTP-40

Date: Monday, 27 July 2015

Time: 14h00 - 15h30

Calculating the current density of the radioelectrical effect in parabolic cylindrical quantum wires

Hoang Van Ngoc (1), Nguyen Vu Nhan (2), Nguyen Quang Bau (1)

(1) Faculty of Physics, Hanoi University of Sciences, Vietnam National University; (2) Air Defence - Air Force Academy

The density of the current of the radioelectrical effect associated with the drag of the charge carriers in a parabolic cylindrical quantum wire by a linearly polarized electromagnetic wave, a dc electric field, a laser radiation is calculated. By using the quantum kinetic equation for electrons interacting with acoustic phonon at low temperatures, the dependence of the current density on the temperature, the frequency of the laser radiation, the frequency of the linearly polarized electromagnetic wave, the frequency of the parabolic potential is obtained. The analytic expression of current density is numerically evaluated and plotted for a specific quantum wires, GaAs/AlGaAs, to show clearly the dependence of the current density of charge carriers on above parameters. The results of current density in this case are compared with bulk semiconductors to show the difference.

Presenter: Hoang Van Ngoc