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Effects of screening on the two-dimensional electron transport properties in modulation doped heterostructures
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Date
1998-06-01
Author
Sen, O
Beşikci, Cengiz
Tanatar, B
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The effects of screening on the polar optical phonon scattering rates and on the transport properties of the two-dimensional electron gas in AlGaAs/GaAs modulation doped heterostructures have been investigated through Monte Carlo simulations incorporating the three valleys of the conduction band, size quantization in the Gamma valley and the lowest three subbands in the quantum-well. At typical sheet densities observed in modulation doped field-effect transistors, screening considerably affects the electron transport properties under moderately large fields and at low temperatures, by lowering the intrasubband polar-optical phonon scattering rates especially in the first subband. The results show that screening, which is usually ignored in device Monte Carlo simulations, should be included in the simulation in order to be able to predict the device performance correctly.
Subject Keywords
Electrical and Electronic Engineering
,
Materials Chemistry
,
Electronic, Optical and Magnetic Materials
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/35877
Journal
SOLID-STATE ELECTRONICS
DOI
https://doi.org/10.1016/s0038-1101(98)00098-7
Collections
Department of Electrical and Electronics Engineering, Article
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O. Sen, C. Beşikci, and B. Tanatar, “Effects of screening on the two-dimensional electron transport properties in modulation doped heterostructures,”
SOLID-STATE ELECTRONICS
, pp. 987–991, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35877.