Monte Carlo study of the polarization and depolarization properties of order–disorder ferroelectrics

The spontaneous polarization and depolarization in order–disorder ferroelectrics are studied using a Monte Carlo computer simulation method. Our study has been developed in a framework of the transverse field Ising model with the nearest-neighbor interaction. Two effects of tunneling frequency and external electrical field on the polarization and depolarization are taken into consideration. From our simulation results, the polarization of order–disorder ferroelectrics decreases significantly with the increase in tunneling frequency. The remnant polarization and the saturation coercive force of these ferroelectrics are also calculated, and a good agreement with previous theoretical and experimental results is obtained.