Browsing by Subject Ettingshausen effect

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  • Magneto – thermoelectric Effects in Compositional Superlattice in the Presence of Electromagnetic Wave.pdf.jpg
  • Article


  • Authors: Dao, Thu Hang; Nguyen, Thi Hoa; Nguyen, Thi Thanh Nhan; Nguyen, Quang Bau (2019)

  • Ettingshausen coefficient (EC) in the compositional semiconductor superlattice (CSSL) under the influence of electromagnetic wave (EMW) is surveyed by using the quantum kinetic equation for electrons. The analytical expressions of the Ettingshausen coefficient are numerically calculated for the GaAs/AlGaAs compositional semiconductor superlattice. It have been showed that the appearance of EMW has changed the EC’s value and the EC decreases nonlinearly when the temperature increases. Studying the dependence of EC on the magnetic field, we discovered that the superlattice period strongly affects the quantum magneto - thermoelectric effect. When the superlattice period is small, the q...

  • 4400-97-9287-1-10-20191218.pdf.jpg
  • Article


  • Authors: Nguyen, Quang Bau; Doan, Minh Quang; Tran, Hai Hung (2019)

  • Based on the quantum kinetic equation for electrons, we have theoretically studied the influence of a Strong Electromagnetic Wave (EMW) on the Magneto-Thermoelectric Effects in a cylindrical quantum wire with an infinite potential (CQWIP) (for electron - optical phonon scattering) under the influence of electric field E1=(0,0,E1), magnetic field B=(0,B,0) and a strong EMW (laser radiation) E= (0,0,E0sinΩt) (where and are amplitude and frequency of EMW, respectively). We obtain the analytic expressions for the kinetic tensors sik, bik, gik, xik and the Ettingshausen coefficient (EC) in the CQWIP with the dependence on the frequency, the amplitude of EMW, the Quantum Wire (CQWIP) para...

  • 4338-97-8857-1-10-20190621.pdf.jpg
  • Article


  • Authors: Nguyen, Thi Lam Quynh; Cao, Thi Vi Ba; Nguyen, Quang Bau (2019)

  • In this paper, we have used the method of quantum kinetic equation to calculate the analytic expression for Ettingshausen coefficient (EC) under the influence of confined phonon. We considered a quantum well in the presence of constant electric field, magnetic field and electromagnetic wave (EMW) with assumption that electron – confined optical phonon (OP) scattering is essential. The EC obtained depends on many quantities in a complicated way such as temperature, magnetic field, frequency or amplitude of EMW and m - quantum number which specify confined OP. Numerical results for GaAs/GaAsAl quantum well (QW) have displayed clearly the differences in comparison with both cases of bulk...

Browsing by Subject Ettingshausen effect

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 2 to 4 of 4
  • Magneto – thermoelectric Effects in Compositional Superlattice in the Presence of Electromagnetic Wave.pdf.jpg
  • Article


  • Authors: Dao, Thu Hang; Nguyen, Thi Hoa; Nguyen, Thi Thanh Nhan; Nguyen, Quang Bau (2019)

  • Ettingshausen coefficient (EC) in the compositional semiconductor superlattice (CSSL) under the influence of electromagnetic wave (EMW) is surveyed by using the quantum kinetic equation for electrons. The analytical expressions of the Ettingshausen coefficient are numerically calculated for the GaAs/AlGaAs compositional semiconductor superlattice. It have been showed that the appearance of EMW has changed the EC’s value and the EC decreases nonlinearly when the temperature increases. Studying the dependence of EC on the magnetic field, we discovered that the superlattice period strongly affects the quantum magneto - thermoelectric effect. When the superlattice period is small, the q...

  • 4400-97-9287-1-10-20191218.pdf.jpg
  • Article


  • Authors: Nguyen, Quang Bau; Doan, Minh Quang; Tran, Hai Hung (2019)

  • Based on the quantum kinetic equation for electrons, we have theoretically studied the influence of a Strong Electromagnetic Wave (EMW) on the Magneto-Thermoelectric Effects in a cylindrical quantum wire with an infinite potential (CQWIP) (for electron - optical phonon scattering) under the influence of electric field E1=(0,0,E1), magnetic field B=(0,B,0) and a strong EMW (laser radiation) E= (0,0,E0sinΩt) (where and are amplitude and frequency of EMW, respectively). We obtain the analytic expressions for the kinetic tensors sik, bik, gik, xik and the Ettingshausen coefficient (EC) in the CQWIP with the dependence on the frequency, the amplitude of EMW, the Quantum Wire (CQWIP) para...

  • 4338-97-8857-1-10-20190621.pdf.jpg
  • Article


  • Authors: Nguyen, Thi Lam Quynh; Cao, Thi Vi Ba; Nguyen, Quang Bau (2019)

  • In this paper, we have used the method of quantum kinetic equation to calculate the analytic expression for Ettingshausen coefficient (EC) under the influence of confined phonon. We considered a quantum well in the presence of constant electric field, magnetic field and electromagnetic wave (EMW) with assumption that electron – confined optical phonon (OP) scattering is essential. The EC obtained depends on many quantities in a complicated way such as temperature, magnetic field, frequency or amplitude of EMW and m - quantum number which specify confined OP. Numerical results for GaAs/GaAsAl quantum well (QW) have displayed clearly the differences in comparison with both cases of bulk...