Abstract The motion of domain walls and phase fronts in ferroelectric and ferroelastic materials displays discrete, impulsive jumps, i.e. jerks, as indicators of avalanches on a broad range of scales. Several experimental techniques used to characterise these avalanches show that they are power law distributed and share some statistical similarities with the avalanches observed during the compression of porous materials. Simulations attribute their origin to kinks and needle domains pinned by junctions between domain walls and show their evolution with the amplitude of the driving field. Recent studies on conductive and polar domain walls prove promising for the development of domain wall engineering.

中文翻译：

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铁电、铁弹性和共弹性材料中的雪崩：相变、畴切换和传播

摘要 铁电和铁弹性材料中畴壁和相前沿的运动显示出离散的、脉冲的跳跃，即跳动，作为大范围范围内雪崩的指标。用于表征这些雪崩的几种实验技术表明，它们是幂律分布的，并且与多孔材料压缩过程中观察到的雪崩具有一些统计相似性。模拟将它们的起源归因于由畴壁之间的连接点固定的扭结和针状畴，并显示了它们随驱动场幅度的演变。最近对导电和极性畴壁的研究证明对畴壁工程的发展很有希望。