TY - JOUR
T1 - Electron mobility in heterostructures
AU - Hsu, L.
AU - Walukiewicz, W.
PY - 1997
Y1 - 1997
N2 - Theoretical electron mobility limits of a two-dimensional electron gas (2DEG) confined near the interface of a (Formula presented) heterostructure are computed. The electronic structure of the 2DEG is calculated self-consistently to obtain the best analytic solution for the wave functions, and the results are used to compute the mobilities. All standard scattering mechanisms, including scattering by acoustic and optical phonons, remote and background impurities, and alloy disorder have been included in our calculations. Depending on the exact composition of the heterostructure, the low-temperature mobility may be limited by either Coulomb or alloy disorder scattering. Strategies for optimizing the mobility for various remote doping concentrations and spacer widths are discussed. Intrinsic mobilities in excess of (Formula presented) are predicted for optimized heterostructures at low temperatures.
AB - Theoretical electron mobility limits of a two-dimensional electron gas (2DEG) confined near the interface of a (Formula presented) heterostructure are computed. The electronic structure of the 2DEG is calculated self-consistently to obtain the best analytic solution for the wave functions, and the results are used to compute the mobilities. All standard scattering mechanisms, including scattering by acoustic and optical phonons, remote and background impurities, and alloy disorder have been included in our calculations. Depending on the exact composition of the heterostructure, the low-temperature mobility may be limited by either Coulomb or alloy disorder scattering. Strategies for optimizing the mobility for various remote doping concentrations and spacer widths are discussed. Intrinsic mobilities in excess of (Formula presented) are predicted for optimized heterostructures at low temperatures.
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U2 - 10.1103/PhysRevB.56.1520
DO - 10.1103/PhysRevB.56.1520
M3 - Article
AN - SCOPUS:0000896703
SN - 1098-0121
VL - 56
SP - 1520
EP - 1528
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 3
ER -