Phonon Drag Thermopower in Quantum Wire with Parabolic Confinement Potential

I. I. Abbasov$^{1}$, Kh. A. Hasanov$^{2}$, J. I. Huseynov$^{2}$

$^{1}$Azerbaijan State Oil and Industrial University, 20 Azadliq, Baku, Azerbaijan
$^{2}$Azerbaijan State Pedagogical University, 34 U. Hajibayov Str., Baku, Azerbaijan

Received: 05.08.2017. Download: PDF

The quantitative theory of phonon drag thermopower for the one-dimensional electron gas in a quantum wire with a parabolic confinement potential is developed. The temperature gradient is directed along the axis of a quantum wire. As assumed, the Fermi level is located between the zero and first levels of a size quantization. Using the Boltzmann kinetic equation, the phonon and electronic parts of a thermoelectric power are calculated. For comparison, numerical calculations of the temperature and concentration dependences of the phonon and diffusion parts of a thermoelectric power are carried out. As shown, the phonon drag makes a main contribution in thermopower within the temperature interval 2–20 K.

Key words: quantum wire, phonon drag, parabolic potential, energy spectrum, thermoelectric effects, diffusion thermopower, phonon thermopower.



PACS: 63.20.K-, 72.15.Jf, 72.15.Nj, 72.20.Pa, 73.21.Hb, 73.63.Nm, 85.80.Fi

Citation: I. I. Abbasov, Kh. A. Hasanov, and J. I. Huseynov, Phonon Drag Thermopower in Quantum Wire with Parabolic Confinement Potential, Metallofiz. Noveishie Tekhnol., 39, No. 9: 1165—1171 (2017)

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