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Publication
Physical Review B
Paper
Nucleation and growth in systems with two stable phases
Abstract
We study nucleation and growth in systems with two distinct stable phases for both homogeneous and heterogeneous nucleation. Mean-field theories are developed that predict the fraction of material in each of the two stable phases as a function of time in any dimension d. Exact solutions for homogeneous and heterogeneous nucleation for d=1 are obtained and compared with the mean-field results. In the case of homogeneous nucleation in one dimension, we find an anomalous power-law correction to the leading-order asymptotic behavior for large times. The power-law exponent is a continuously varying function of the nucleation rates. Finally, Monte Carlo simulations show that the mean-field theories are surprisingly accurate for d=2. © 1989 The American Physical Society.