Linear temperature dependence of the mobility in two-dimensional electron gases: many-body and spin-polarization effects

2002 ◽  
Vol 15 (2) ◽  
pp. 217-223 ◽  
Author(s):  
A Gold
Keyword(s):  
Temperature Dependence ◽  
Spin Polarization ◽  
Linear Temperature Dependence ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Many Body ◽  
Electron Gases ◽  
Linear Temperature ◽  
Polarization Effects ◽  
Spin Polarization Effects

MANY-BODY EFFECTS IN FRICTIONAL DRAG BETWEEN COUPLED TWO-DIMENSIONAL ELECTRON SYSTEMS

1999 ◽  
Vol 13 (05n06) ◽  
pp. 469-478
Author(s):  
BEN YU-KUANG HU
Keyword(s):  
Quantum Wells ◽  
Quantitative Measure ◽  
Voltage Response ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Many Body ◽  
Frictional Drag ◽  
Electron Gases ◽  
Coupled Quantum Wells ◽  
Many Body Effects

Independently contacted coupled quantum wells separated by barriers which allow significant interlayer interactions but no tunneling have been fabricated. When current is passed through one layer, the interlayer interactions drag carriers in the second layer, resulting in a voltage response (for open circuits). The magnitude of the response gives a quantitative measure of the effective interlayer interactions and response functions of the system, and hence this is an excellent laboratory for the study of many-body phenomena in two-dimensional electron gases. We review the Boltzmann and Kubo formalisms for the theory of drag effects in coupled quantum wells and discuss three specific cases where many-body effects significantly affect the drag: (1) acoustic phonon-mediated drag, (2) large enhancements due to coupled plasmon modes, and (3) interplay of screening and Landau levels in large magnetic fields.

Electronic structure of two-dimensional electron gases at differently prepared indium arsenide surfaces

2021 ◽  
Vol 555 ◽  
pp. 149516
Author(s):  
Jacek J. Kolodziej ◽  
Dawid Wutke ◽  
Jakub Lis ◽  
Natalia Olszowska
Keyword(s):  
Electronic Structure ◽  
Indium Arsenide ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Gases

Temperature studies of the tunnelling between parallel two-dimensional electron gases

1996 ◽  
Vol 40 (1-8) ◽  
pp. 413-415 ◽  
Author(s):  
N Turner ◽  
J.T Nicholls ◽  
E.H Linfield ◽  
K.M Brown ◽  
M Pepper ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Gases

Interface roughness governed negative magnetoresistances in two-dimensional electron gases in AlGaN/GaN heterostructures

2021 ◽  
Vol 5 (6) ◽  
Author(s):  
Ting-Ting Wang ◽  
Sining Dong ◽  
Zhi-Li Xiao ◽  
Chong Li ◽  
Wen-Cheng Yue ◽  
...  
Keyword(s):  
Interface Roughness ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Gases

scholarly journals Relevance of weak and strong classical scattering for the giant negative magnetoresistance in two-dimensional electron gases

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
B. Horn-Cosfeld ◽  
J. Schluck ◽  
J. Lammert ◽  
M. Cerchez ◽  
T. Heinzel ◽  
...  
Keyword(s):  
Negative Magnetoresistance ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Gases
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