Growth kinetics in the $\Phi^6$ N-component model. Non conserved order parameter.
F. Corberi e U.Marini Bettolo Marconi
Modern Physics Letters B, 8, 1115 (1994).
The dynamics of a system with non conserved $N$-component order parameter described by a Landau-Ginzburg free energy functional containing a sixth order non-linearity is discussed in the spherical limit. The model displays a richer behavior than the well studied $\Phi^4$ case. In particular it shows interesting prperties regarding metastability, a feature which is absent in the spherical $\Phi^4$ model.