Transmitted-acoustic-phonon drag between two-dimensional electron gases in GaAs/AlxGa1−xAs systems at low temperatures: Monte Carlo study

1995 ◽  
Vol 52 (8) ◽  
pp. 5830-5842 ◽  
Author(s):  
Martin Moško ◽  
Jean-Luc Pelouard ◽  
Fabrice Pardo
Keyword(s):  
Monte Carlo ◽  
Low Temperatures ◽  
Acoustic Phonon ◽  
Monte Carlo Study ◽  
Two Dimensional ◽  
Phonon Drag ◽  
Dimensional Electron ◽  
Electron Gases

Monte Carlo study of two-dimensional electron gas transport in Si-MOS devices

1985 ◽  
Vol 28 (8) ◽  
pp. 733-740 ◽  
Author(s):  
Chu-Hao ◽  
J. Zimmermann ◽  
M. Charef ◽  
R. Fauquembergue ◽  
E. Constant
Keyword(s):  
Monte Carlo ◽  
Gas Transport ◽  
Electron Gas ◽  
Monte Carlo Study ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Mos Devices ◽  
Dimensional Electron Gas

Electrical Generation of Spontaneous Optical Emission in Electrically Modulated Two-Dimensional Electron Gases at Low-Temperatures

1998 ◽  
Vol 12 (05) ◽  
pp. 579-590
Author(s):  
W. Xu ◽  
C. Zhang
Keyword(s):  
Electromagnetic Radiation ◽  
Low Temperatures ◽  
Low Frequency ◽  
Optical Emission ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Gases ◽  
Radiation Emission ◽  
Electrical Generation ◽  
Electrically Modulated

A detailed theoretical study is presented for spontaneous optical emission from a two-dimensional electron gas (2DEG) in the presence of a unidirectional spatially periodic modulation at low temperatures. The momentum- and energy-balance equations for electron–photon interactions in the device system are solved self-consistently using the Boltzmann equation, from which we can obtain the frequency and the intensity of the electromagnetic radiation generated. The results obtained indicate that: (1) in an electrically modulated 2DEG at low temperatures, a strong electromagnetic radiation emission up to W/cm2 can be generated by applying a small d.c. electric field; (2) the radiation emission is generated indirectly in the occupied subbands through electronic transitions around the Fermi level; (3) the frequency of the radiation generated is at about 0.1 THz; (4) in the low frequency regime, spontaneous multiphoton emissions can be observed; and (5) this type of optical emission depends strongly on the sample parameters such as the electron density of the 2DEG and the modulation length.

Sign in / Sign up

Export Citation Format

Share Document