Quasistatic switching currents in a vinylidene fluoride/trifluoroethylene copolymer

When a copolymer of vinylidene fluoride and trifluoroethylene is poled at high temperature, subsequent reversal of the polarization occurs at fields which are much greater than the normal coercive field. As the polarization is repeatedly reversed, the difference between positive and negative reversal fields is reduced. The results are consistent with models involving stabilisation of the dipole polarisation by injected space charge.