Calculation of the Ettingshausen coefficient in quantum wells with parabolic potential in the presence of electromagnetic wave (for electron-confined acoustic phonons scattering)
DOI:
https://doi.org/10.51453/2354-1431/2018/180Keywords:
quantum wells, Ettingshausen efffect, magneto – thermoelectric effect, quantum kinetic equation, confined acoustic phonons.Abstract
By using the quantum kinetic equation for the distribution function of electrons, the expression for Ettingshausen coefficient (EC) in quantum wells with parabolic potential (QWPP) in the presence of electromagnetic wave (EMW) is obtained for electrons - confined acoustic phonons scattering. The analytic results have shown that EC depends on temperature, magnetic field, characteristic quantities of EMW and m - quantum number which is specific the confined phonons in a complicated way. The numerical results for GaAs/GaAsAl quantum wells (QW) have displayed these dependence explicitly. In particular, when m is set to zero, we achieve results for magneto – thermoelectric effect in the same QW without the confinement of acoustic phonons.
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