ABSTRACT The classical explanation of the shielding charges at the surface of a ferroelectric was looked back at first. Then based on the non-equilibrium (or irreversible) thermodynamic description of ferroelectric phase transitions, a new explanation of that was given out. They agree with each other. In particular, the former is a special case of the latter.

中文翻译：

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讨论：为什么自由的屏蔽电荷确实存在于铁电体表面？

摘要 首先回顾了铁电体表面屏蔽电荷的经典解释。然后基于铁电相变的非平衡（或不可逆）热力学描述，给出了对此的新解释。他们彼此同意。特别是前者是后者的特例。