Wb. Yu et D. Stroud, MOLECULAR-DYNAMICS STUDY OF SURFACE SEGREGATION IN LIQUID SEMICONDUCTOR ALLOYS, Physical review. B, Condensed matter, 56(19), 1997, pp. 12243-12249
We report the results of a molecular-dynamics study of the surface ten
sion and surface profile of liquid Si and Ge (l-Si and l-Ge) and their
alloys using empirical Stillinger-Weber potentials. The calculations
are carried out at two temperatures slightly above the melting tempera
tures of Si and Ge and the alloys Si0.8Ge0.2 and Si0.2Ge0.8. They show
clear evidence of surface segregation by Ge, the component with the l
ower surface tension.