Interference of impurity and phonon scattering in the magneto-transport of two-dimensional electron systems

1992 ◽  
Vol 12 (3) ◽  
pp. 313-315
Author(s):  
C.E. Leal ◽  
I.C. da Cunha Lima ◽  
A. Troper
Keyword(s):  
Phonon Scattering ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Two Dimensional Electron Systems

CALCULATION OF THE INTENSITY-DEPENDENT ABSORPTION SPECTRUM IN TWO-DIMENSIONAL ELECTRON SYSTEMS

2011 ◽  
Vol 25 (11) ◽  
pp. 863-872
Author(s):  
TRAN CONG PHONG ◽  
VO THANH LAM ◽  
LUONG VAN TUNG
Keyword(s):  
Phonon Scattering ◽  
Two Dimensional ◽  
Electron Systems ◽  
Quantum Kinetic Equation ◽  
Dimensional Electron ◽  
Semiconductor Superlattice ◽  
Optical Phonon Scattering ◽  
Dependent Absorption ◽  
Analytic Expression ◽  
Two Dimensional Electron Systems

General analytic expression for the intensity-dependent absorption coefficient (IDAC) of an intense electromagnetic wave (IEMW) in two-dimensional electron systems (2DES) is obtained by using the quantum kinetic equation (QKE) for electrons in the case of electron–optical phonon scattering in a doped semiconductor superlattice (DSSL). The dependence of IDAC on the amplitude E0 and the photon energy ℏΩ of an IEMW, the energy ℏωp and the temperature for a specific n-i-p-i superlattice of GaAs : Si / GaAs : Be is achieved due to a numerical method. The computational results show that not only the dependence of IDAC on ℏΩ but also the dependence of IDAC on ℏωp can be applied to optically detect the electric subbands in a DSSL.

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