Electromechanical properties of ferroelectric polymers: Finsler geometry modeling and a Monte Carlo study

Polyvinylidene difluoride (PVDF) is a ferroelectric polymer characterized by negative strain along the direction of the applied electric field. However, the electromechanical response mechanism of PVDF remains unclear due to the complexity of the hierarchical structure across the length scales. In this letter, we employ the Finsler geometry model as a new solution to the aforementioned problem and demonstrate that the deformations observed through Monte Carlo simulations on 3D tetrahedral lattices are nearly identical to those of real PVDF. Specifically, the simulated mechanical deformation and polarization are similar to those observed experimentally. (C) 2021 The Author(s). Published by Elsevier B.V.

Automated summary

PVDF is a ferroelectric polymer with negative strain along the direction of the applied electric field. The Finsler geometry model is used to explain the electromechanical response of PVDF. Simulated mechanical deformation and polarization closely match experimental observations.