The (4x2) is like GaAs (001) the metal richest surfaces found on InAs (001). But the surface structure is supposed to be different from GaAs: Two dimers are in the lower layer and only one in the upper [Ohkouchi94]:
Model for the InAs (001) (4x2) from STM-measurements [Ohkouchi94]
Any contribution is welcome.
last change: 4.3.1996