Programme

P.40 -- Poster, NCTP-43

Date: Wednesday, 1 August 2018

Time: 08:30 - 10:00

Analytical results for the different confined phonon models in parabolic quantum wells

Nguyen Dinh Hien (1), Le Dinh (2), Tran Cong Phong (3)

(1) Nha Trang national ethnic minority Pre-university, 46 Nguyen Thien Thuat Street, Nha Trang City, Viet Nam; (2) Center for Theoretical & Computational Physics, Hue University’s College of Education, 34 Le Loi Street, Hue City, Viet Nam; (3) Vietnam Institute of Educational Sciences,101 Tran Hung Dao Street, Ha Noi City, Viet Nam.

We present analytical results for the matrix element for electron-confined phonon interaction in the extreme quantum limits with different confined phonon models in parabolic quantum wells described by the Fuchs-Kliewer slab, Ridley’s guided, and Huang-Zhu models. The obtained analytical results for the parabolic quantum wells show that when phonons are confined the only even modes in the Huang-Zhu model, odd modes in the Fuchs-Kliewer slab model and even modes in the Ridley’s guided model contribute to intra-subband transitions. But, for inter-subband transitions, the only odd modes in the Huang-Zhu model, even modes in the Fuchs-Kliewer slab model and odd modes in the Ridley’s guided model make contribution. These results are consistent with previous works for the different confined phonon models in square quantum wells.

Presenter: Nguyen Dinh Hien