Nucleation in systems with elastic forces.

摘要: Systems with long-range interactions when quenched into a metastable state near the pseudospinodal exhibit nucleation processes that differ from classical seen coexistence curve. In systems elastic forces description of process can be quite subtle due to presence bulk and surface compatibility constraints. We analyze in simple 2D model show generates critical droplets different structure than stable phase. This has implications for many crystal-crystal transitions, specifically martensites shape memory alloys, final state.