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