We report the results of self-consistent quantum Monte Carlo simulations of
the structure of the liquid-vapor interface of the alloy Sn0.09Ga0.81. Our
calculations are in very good agreement with the experimental results repo
rted by Lei, Huang and Rice [J. Chem. Phys. 107, 4051 (1997)]. In particula
r, our calculations confirm the experimentally inferred existence of a part
ial second layer of Sn below the complete outermost layer of Sn in the stra
tified liquid-vapor interface of this alloy. (C) 1999 American Institute of
Physics. [S0021-9606(99)70228-X].