Mr. Fahy et al., REFLECTION HIGH-ENERGY ELECTRON-DIFFRACTION INTENSITY OSCILLATIONS DURING THE GROWTH BY MOLECULAR-BEAM EPITAXY OF GAAS (111)A, Applied physics letters, 64(2), 1994, pp. 190-192
We have made a study of reflection high-energy electron diffraction in
tensity oscillations during the growth of GaAs on singular GaAs (111)A
substrates by molecular beam epitaxy. The behavior is quite different
from growth of GaAs on (001) orientated substrates in that the oscill
ation period is growth temperature and AS(4):Ga flux ratio dependent.
We speculate that this is due to the (110)-like configuration of the (
111)A 2x2 reconstructed surface, which requires direct interaction of
a Ga and an As atom for growth to occur.