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Modulation of the Nucleation Rate Preexponential in a Low-Temperature Ising System

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Shneidman, V. A. and Nita, G. M

Editorial: PHYSICAL REVIEW LETTERS, 89, p.5701S, 2002.


A metastable lattice gas with nearest-neighbor interactions and continuous-time dynamics is studied using a generalized Becker-Döring approach in the multidimensional space of cluster configurations. The preexponential of the metastable-state lifetime (inverse of nucleation rate) is found to exhibit distinct peaks at integer values of the inverse supersaturation. Peaks are unobservable (infinitely narrow) in the strict limit T→0, but become detectable and eventually dominate at higher temperatures.

Cuvinte cheie: nucleation theory, Ising model