Nucleation theory versus cluster aggregation
- 7 August 1993
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 26 (15) , L655-L659
- https://doi.org/10.1088/0305-4470/26/15/007
Abstract
According to classical nucleation theory (CNT), clusters are produced with the help of a reversible gain of single molecules, with no cluster-cluster aggregation. Simulations at T equivalent to Tc seem to disagree. The author shows that, when a growing embryo cluster aggregates with clusters of any size d>or=1, the dominant contribution is of d=1 (single molecules). Production of the biggest clusters obeys, therefore, CNT. Production of other clusters, however, is modified by their slow rate determining aggregation with the biggest. The theory fits excellently the simulations and for the first time combines aggregation with CNT.Keywords
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