TY - JOUR
T1 - Electronic structure of short-period n-p GaAs doping superlattices
AU - Choquette, Kent D.
AU - Misemer, D. K.
AU - McCaughan, Leon
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1991
Y1 - 1991
N2 - We present the electronic structure of compensated, noncompensated, and nonequilibrium uniformly doped short-period GaAs doping superlattices. Self-consistent calculations are described, which include miniband dispersion, and can be applied to arbitrarily shaped superlattice potentials. For n-p superlattices with periods less than 200, we find significant dispersion in the first conduction subband and weak confinement of electrons to the donor layers. Band filling is shown to be the major contribution to the tunability of the electronic structure in these superlattices under excitation, while for periods greater than 200, carrier screening of the superlattice potential dominates the variation. The calculated carrier-recombination lifetimes in short-period doping superlattices are comparable to bulk GaAs.
AB - We present the electronic structure of compensated, noncompensated, and nonequilibrium uniformly doped short-period GaAs doping superlattices. Self-consistent calculations are described, which include miniband dispersion, and can be applied to arbitrarily shaped superlattice potentials. For n-p superlattices with periods less than 200, we find significant dispersion in the first conduction subband and weak confinement of electrons to the donor layers. Band filling is shown to be the major contribution to the tunability of the electronic structure in these superlattices under excitation, while for periods greater than 200, carrier screening of the superlattice potential dominates the variation. The calculated carrier-recombination lifetimes in short-period doping superlattices are comparable to bulk GaAs.
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U2 - 10.1103/PhysRevB.43.7040
DO - 10.1103/PhysRevB.43.7040
M3 - Article
AN - SCOPUS:35949010169
VL - 43
SP - 7040
EP - 7045
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 9
ER -