Theoretical Study of the Magneto-Thermoelectric Effect in Doped Semiconductor Superlattices under the Influence of an Electromagnetic Wave by Using a Quantum Kinetic Equation

Abstract:

By using a quantum kinetic equation for electrons, we studied magneto - thermoelectric effects in the doped semiconductor superlattice (DSSL) under the influence of electromagnetic waves (EMW). In case of the electron - acoustic phonon interaction, we have also figured out analytical expressions of the Ettingshausen coefficient (EC) in DSSL. These expressions are quite different from those which were obtained in the case of bulk semiconductors. The results are numerically calculated for the GaAs:Be/ GaAs:Si DSSL; we found that the EC depends on the characteristic parameters of EMW, temperature and the characteristic parameters of DSSL. The results are consistent with recently experimental observations but the EC is different from that in the bulk semiconductors or bismuth. In addition, the impact of the EMW on the Ettingshausen effect was also discovered. These are latest results which have been studied in terms of Ettingshausen effect in DSSL.

• Periodical: Key Engineering Materials (Volume 783)
• Pages: 93-102
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.783.93
• Online since: October 2018
• Authors: Dao Thu Hang, Nguyen Vu Nhan*, Nguyen Quang Bau
• Keywords: Acoustomagnetoelectric Field, Doped Superlattices, Kinetic Equation Method, Semiconductor Superlattices

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