Moldavian Journal of the Physical Sciences (Dec 2010)

Phonon drag thermopower of 2d electron gas in quantum well with parabolic confinement potential

  • Hashimzade, F.,
  • Babayev, M.,
  • Mehdiyev, B.,
  • Hasanov, Kh.

Journal volume & issue
Vol. 9, no. 3-4
pp. 299 – 303

Abstract

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We developed a quantitative theory of the phonon-drag thermopower for the 2D electron gas in a quantum well with parabolic confinement potential. The temperature gradient is directed across the confinement direction, i.e., along the plane of a two-dimensional electron gas. Our theoretical results are in a good agreement with experimental data [1] in a range of 1-10 K. In this temperature interval, the main contribution to the thermopower comes from phonon-drag.