Programme

P.63 -- Poster, NCTP-43

Date: Wednesday, 1 August 2018

Time: 08:30 - 10:00

The influence of confined phonons on Ettingshausen effect in Quantum well with parabolic potential in the present of electromagnetic wave

Nguyen Quang Bau* , Nguyen Thi Lam Quynh, Nguyen Ba Duc

Faculty of Physics, Hanoi University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam

By using the quantum kinetic equation for electrons with the present of invariable electromagnetic field and electromagnetic wave (EMW), we have carefully calculated and obtained the analytic expression for Ettingshausen coefficient (EC) in the Quantum Well (QW) with parabolic potential (QWPP) when considering the con- finement of both electrons and phonons. In addition, we are interested in the interaction between electrons and acoustics phonons. Expressions show that EC depends in a com- plicated way on the temperature, the magnetic field, characteristic quantities of EMW and the m-quantum number being specific to the confined phonons. These dependen-cies are clearly displayed when we apply numberial method for GaAs/GaAsAl QW. Especially, if the detention index of the phonon is set to zero, we will achieve results which are suitable for the published research about the magneto-thermoelectric effect in the same QW without phonon confinement. Finally, the results we get are new and not found in the previous research.

Presenter: Nguyen Quang Bau