Inelastic acoustic phonon scattering in nonparabolic semiconductors under longitudinal quantizing magnetic field

1977 ◽  
Vol 79 (2) ◽  
pp. K157-K160 ◽  
Author(s):  
C. K. Sarkar ◽  
P. K. Basu
Keyword(s):  
Magnetic Field ◽  
Acoustic Phonon ◽  
Phonon Scattering ◽  
Quantizing Magnetic Field

One-dimensional cylindrical quantum wire: The theoretical study of photo-stimulated Ettingshausen effect

2021 ◽  
Author(s):  
Hoang Van Ngoc ◽  
Nguyen Quang Bau ◽  
Doan Minh Quang ◽  
Tran Hai Hung
Keyword(s):  
Magnetic Field ◽  
Optical Phonon ◽  
Quantum Wire ◽  
Acoustic Phonon ◽  
Phonon Scattering ◽  
Resonance Effect ◽  
One Dimensional ◽  
Ettingshausen Effect ◽  
Electron Acoustic ◽  
The Impact

Based on the quantum kinetic equation (QKE) for electron, we have theoretically studied the theory of photo-stimulated Ettingshausen effect in a one-dimensional cylindrical quantum wire (CQW). The strong electromagnetic wave (EMW) [Formula: see text] plays a role as photo-stimulation source. We obtain the analytic expressions for the kinetic tensors [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and the Ettingshausen coefficient (EC) in the CQW with the dependence on the amplitude and the energy of EMW, the CQW radius, the magnetic field and the temperature for two cases: optical phonon and acoustic phonon. The results are numerically evaluated and graphed for GaAs/AlGaAs CQW model. It is shown that we observe the cyclotron resonance and magneto-phonon resonance effect while surveying EC in terms of magnetic field (with and without EMW) and EMW energy, considered the electron-optical phonon scattering. In case of electron-acoustic phonon scattering, the oscillation of EC is obtained with the transition between low Landau levels (LLs). We also clarify the impact of quantum size effect (QSE) on EC by surveying the influence of EC on the radius of CQW.

Sign in / Sign up

Export Citation Format

Share Document