R. Mcgraw et A. Laaksonen, SCALING PROPERTIES OF THE CRITICAL NUCLEUS IN CLASSICAL AND MOLECULAR-BASED THEORIES OF VAPOR-LIQUID NUCLEATION, Physical review letters, 76(15), 1996, pp. 2754-2757
Scaling relations are developed for the number g of molecules in the
critical nucleus and the nucleation barrier height W. Density functio
nal (DF) calculations for vapor-liquid nucleation confirm these relati
ons and show systematic departure of the ratio W/g*Delta mu from its
classical value of 1/2 with increasing difference Delta mu in the chem
ical potential between the supersaturated vapor and bulk condensed pha
se. Discrepancies between classical and DF nucleation theories and bet
ween the classical theory and experiment are interpreted using these r
esults.