Relaxational polarization dynamics in soft ferroelectrics

Investigations of the frequency dependence of the P–E (polarization versus field) and e–E (strain versus field) behavior have been performed on soft 0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3 polycrystalline ferroelectrics at various maximum field strengths below and above that of the coercive field (Ec). For Eremanence, however at higher frequencies near-linear P–E behavior was found.