Abstract In this work, in the framework of the Ginzburg-Landau phenomenological theory for phase transitions it was found that the structure of the main state of a nanoscale ferroelastic plate below the phase transition temperature can be heterogeneous and is “domain-like.” By the numerical solution of a nonlinear system of differential equations for the order parameter in the framework of elasticity theory, it is shown that in the low-temperature phase of a mechanically fixed ferroelastic plate with a size starting from a certain thickness (), an inhomogeneous domain-like state is realized. “Domains” do not have clear boundaries, but have a various signs of the order parameter, and their number depends on the proximity of the temperature to the phase transition temperature and the plate thickness.

中文翻译：

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纳米铁弹性板的畴结构

摘要 在这项工作中，在金茨堡-朗道相变现象学理论的框架内，发现低于相变温度的纳米级铁弹性板的主态结构可以是异质的，并且是“域状”。通过弹性理论框架下阶参数非线性微分方程组的数值解，表明在机械固定的铁弹性板的低温阶段，尺寸从一定厚度（ ）开始，实现了非均匀域状状态。“域”没有明确的界限，但有各种有序参数的符号，它们的数量取决于温度与相变温度的接近程度和板厚。