论文标题
铁电聚合物的机电特性:Finsler几何建模和蒙特卡洛研究
Electromechanical properties of ferroelectric polymers: Finsler geometry modeling and a Monte Carlo study
论文作者
论文摘要
聚偏二氟化物(PVDF)是一种铁电聚合物,其特征在于沿施加的电场方向负应变。但是,由于长度尺度上的层次结构的复杂性,PVDF的机电响应机制尚不清楚。如本信中所述,我们采用Finsler几何模型作为上述问题的新解决方案,并证明了通过蒙特卡洛模拟在3D四面体晶格上观察到的变形几乎与真实PVDF的变形几乎相同。具体而言,模拟的机械变形和极化与实验观察到的相似。
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. As described 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.