Effect of Phonon Drag on the Thermopower in a Parabolic Quantum Well
- Azerbaijan State Pedagogical University (Azerbaijan)
- Baku State University (Azerbaijan)
- National Academy of Sciences of Azerbaijan, Abdullaev Institute of Physics (Azerbaijan)
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.
- OSTI ID:
- 22645603
- Journal Information:
- Semiconductors, Vol. 50, Issue 3; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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