Joseph A. Stroscio, D.M. Newns, et al.
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
We report scanning tunneling microscope images of isolated oxygen atoms adsorbed on the GaAs(110) surface. The images display a dramatic voltage dependence, which arises from the energy dependence of the local state density, and provides a signature of an adsorbed electronegative atoms. At low oxygen coverages, a long-range screening of the adsorbed atoms is observed in the surrounding bare surface region, with a characteristic screening length scale of <>50 Ai<>.. AE © 1987 The American Physical Society.
Joseph A. Stroscio, D.M. Newns, et al.
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
J.R. Kirtley, R.M. Feenstra, et al.
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
R.J. Hauenstein, T.C. McGill, et al.
Physical Review B
R.M. Feenstra, E.T. Yu, et al.
Applied Physics Letters