MULTIPLE INITIAL CHEMISORPTION SITES - AL ON GAAS(110)
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In simulations of the initial stages of chemisorption on semiconductor surfaces, we find that atoms which are very electronegative (e.g., O) tend to bond to the cation and those which are very electropositive (e.g., Li) to the anion. However, atoms which are intermediate in electronegativity can bond to either, and we find a multiplicity of initial chemisorption sites. For example, Al has been observed to bond at six distinct initial sites. 1988, American Vacuum Society. All rights reserved.