scholarly journals The non-linear terahertz response of hot electrons in low-dimensional semiconductor superlattices: Suppression of the polar-optical phonon scattering

2017 ◽  
Vol 122 (13) ◽  
pp. 135703 ◽  
Author(s):  
Anatoly A. Ignatov
Keyword(s):  
Optical Phonon ◽  
Phonon Scattering ◽  
Hot Electrons ◽  
Polar Optical Phonon ◽  
Semiconductor Superlattices ◽  
Optical Phonon Scattering ◽  
Non Linear ◽  
Low Dimensional

Collisional broadening effect in vacuum emission of hot electrons from SiO2: The role of non-polar optical phonon scattering

1996 ◽  
Vol 194 (2) ◽  
pp. 667-671 ◽  
Author(s):  
L. Reggiani ◽  
H.-J. Fitting ◽  
Th. Hingst ◽  
J. Köhn ◽  
S. Beauvivre ◽  
...  
Keyword(s):  
Optical Phonon ◽  
Phonon Scattering ◽  
Hot Electrons ◽  
Polar Optical Phonon ◽  
Collisional Broadening ◽  
Optical Phonon Scattering

Polar Optical Phonon Instability and Intervalley Transfer in Gallium Nitride

1998 ◽  
Vol 512 ◽  
Author(s):  
B. E. Foutz ◽  
S. K. O'leary ◽  
M. S. Shur ◽  
L. F. Eastman ◽  
B. L. Gelmont ◽  
...  
Keyword(s):  
Gallium Nitride ◽  
Analytical Model ◽  
Optical Phonon ◽  
Room Temperature ◽  
Phonon Scattering ◽  
Polar Optical Phonon ◽  
Scattering Mechanism ◽  
Loss Mechanism ◽  
One Dimensional ◽  
Optical Phonon Scattering

ABSTRACTWe develop a simple, one-dimensional, analytical model, which describes electron transport in gallium nitride. We focus on the polar optical phonon scattering mechanism, as this is the dominant energy loss mechanism at room temperature. Equating the power gained from the field with that lost through scattering, we demonstrate that beyond a critical electric field, 114 kV/cm at T = 300 K, the power gained from the field exceeds that lost due to polar optical phonon scattering. This polar optical phonon instability leads to a dramatic increase in the electron energy, this being responsible for the onset of intervalley transitions. The predictions of our analytical model are compared with those of Monte Carlo simulations, and are found to be in satisfactory agreement.

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