Polarization Switching in Ferroelectric Thin Films Undergoing First-Order Phase Transitions
Figure 8
Dependence of the pyroelectric coefficient on the dimensionless temperature for systems undergoing first- and second-order phase transitions. The curve 1 describes the behavior of the pyroelectric coefficient for the second-order phase transition. There is a singularity in the vicinity of of the order of . The pyroelectric coefficient for systems with the first-order phase transition is described by curve 2. There is a discontinuity of the dependence in the vicinity of .
