Journal of Crystal Growth, Vol.512, 74-77, 2019
Sublattice reversal in GaAs/Ge/GaAs and AlAs/Ge/AlAs heterostructures grown on (113)A and (113)B GaAs substrates
GaAs/Ge/GaAs and AlAs/Ge/AlAs heterostructures were grown both on (1 1 3)B and (1 1 3)A GaAs substrates by molecular beam epitaxy. Sublattice reversal in these heterostructures were identified by comparing the anisotropic etching profile of the epitaxy sample with that for reference (1 1 3)B and (1 1 3)A GaAs substrates. Sublattice reversal in GaAs/Ge/GaAs heterostructures was achieved on (1 1 3)B GaAs substrate. On the other hand, sublattice reversal on (1 1 3)A GaAs substrate was obtained by using AlAs/Ge/AlAs heterostructures.
Keywords:Molecular beam epitaxy;Sublattice reversal;GaAs/Ge/GaAs;AlAs/Ge/AlAs;Heterostructures;(113)A and (113)B GaAs