title: Modulation of the nucleation rate preexponential in a low-temperature Ising system.
abstract: 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.
authors.affiliation: Department of Physics, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
authors.forename: Vitaly A
authors.initials: VA
authors.lastname: Shneidman
authors.forename: Gelu M
authors.initials: GM
authors.lastname: Nita