The adsorption and migration characteristics of Al atoms on (100) surfaces were investigated by using reflection high-energy electron diffraction and the alternate

deposition of Al and As4 onto the growing surface. All of the results were attributed to the existence of differing migration velocities for various atoms.

Y.Horikoshi, H.Yamaguchi, M.Kawashima. Japanese Journal of Applied Physics, 1989, 28[8], 1307-11