Magnetically-controlled and elastically-coupled multistable pendula are shown to serve as versatile structural analogs of ferroelectric crystals, mimicking atomic-level phenomena of domain patterning, domain nucleation, and Allen–Cahn-type domain wall motion under an applied bias, as found, e.g., in ferroelectric switching. We demonstrate the quantitative analogy with material-level transitions via a homogenized continuum description, including structural-level realizations of temperature and lattice defects. Existing photonic, phononic, and topological metamaterials are thus complemented by a new mechanical analog of the nonlinear dissipative kinetics of structural transformations.

磁控和弹性耦合的多稳态钟摆被证明可以作为铁电晶体的通用结构类似物，在施加偏压下模拟畴图案化、畴成核和 Allen-Cahn 型畴壁运动的原子级现象，如发现的那样，例如，在铁电开关中。我们通过均质连续体描述证明了与材料级转变的定量类比，包括温度和晶格缺陷的结构级实现。因此，现有的光子、声子和拓扑超材料得到了结构转换的非线性耗散动力学的新机械模拟的补充。