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.
URL: http://mfint.imp.kiev.ua/en/abstract/v39/i09/1165.html
DOI: https://doi.org/10.15407/mfint.39.09.1165
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)