A novel mechanism to reduce coercive field of ferroelectric materials via {1 1 1} twin engineering

A novel thermomechanical treatment technique was developed to introduce {1 1 1} nanotwins into the films with different twin densities.

The experimental results show that the coercive field is 32% lower in the high twin density samples than that in the low twin density ones. The conducted phase field simulations qualitatively confirmed the experimental results. Furthermore, the magnitude of the apparent saturation polarization is 72% higher in the high twin density samples than that in the low twin density samples.