Polarization Switching in Ferroelectric Thin Films Undergoing First-Order Phase Transitions
Figure 7
Dependence of the switching, 1/τ(in units of ), from the first stable ferroelectric state to the second stable ferroelectric state (or from the first metastable state to the second one) for the 2D system undergoing a first-order phase transition at on dimensionless temperature . The number of dipoles . The initial conditions describe the nucleus of the ferroelectric phase inside the domain with polarization of the opposite direction. The results are given for the values of and corresponding to those for (, , curve 1) and for , (curve 2). The large value of the coefficient of the interaction between nearest neighbours results in the smoothing out of the maximum. At small value of the maximum appears.
