Abstract:
The theory of phonon-drag thermopower resulting from a temperature gradient in the plane of a two-dimensional electron gas layer in a parabolic quantum well is developed. The interaction mechanisms between electrons and acoustic phonons are considered, taking into account potential screening of the interaction. It is found that the effect of electron drag by phonons makes a significant contribution to the thermopower of the two-dimensional electron gas. It is shown that the consideration of screening has a significant effect on the drag thermopower. For the temperature dependence of the thermopower in a parabolic GaAs/AlGaAs quantum well in the temperature range of 1–10 K, good agreement between the obtained theoretical results and experiments is shown.
Citation:
Kh. A. Hasanov, J. И. Huseynov, V. V. Dadashova, F. F. Aliev, “Effect of phonon drag on the thermopower in a parabolic quantum well”, Fizika i Tekhnika Poluprovodnikov, 50:3 (2016), 298–301; Semiconductors, 50:3 (2016), 295–298
Saren Gaowa, Yan-Bo Geng, Zhao-Hua Ding, Jing-Lin Xiao, “The influences of parabolic potential and magnetism on strongly coupled polaron characteristics within asymmetric Gaussian quantum wells”, Mod. Phys. Lett. B, 35:36 (2021)
Yan-Bo Geng, Zhao-Hua Ding, Jing-Lin Xiao, “The effect of a parabolic potential on the properties of a strongly coupled polaron in an asymmetric Gaussian quantum well”, J. Korean Phys. Soc., 79:1 (2021), 30
I. I. Abbasov, Kh. A. Hasanov, J. I. Huseynov, “Phonon Drag Thermopower in Quantum Wire with Parabolic Confinement Potential”, Metallofiz. Noveishie Tekhnol., 39:9 (2017), 1165