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首页> 外文期刊>Annual Review of Materials Research >Mesoscale Domains and Nature of the Relaxor State by Piezoresponse Force Microscopy
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Mesoscale Domains and Nature of the Relaxor State by Piezoresponse Force Microscopy

机译:中尺度域和弛豫状态的性质由压电响应力显微镜

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Ferroelectric relaxors continue to be one of the most mysterious solid-state materials. Since their discovery by Smolenskii and coworkers, there have been many attempts to understand the properties of these materials, which are exotic, yet useful for applications. On the basis of the numerous experimental data, several theories have been established, but none of them can explain all the properties of relaxors. The recent advent of piezoresponse force microscopy (PFM) has allowed for polarization mapping on the surface of relaxors with subnanometer resolution. This development thus leads to the question of whether the polar nanoregions that contribute to diffuse X-ray scattering and a range of macroscopic properties can be visualized. This review summarizes recent advancements in the application of PFM to a number of ferroelectric relaxors and provides a tentative explanation of the peculiar polarization distributions related to the intriguing physical phenomena in these materials.
机译:铁电弛豫器仍然是最神秘的固态材料之一。自从Smolenskii及其同事发现它们以来,已经进行了许多尝试来理解这些材料的特性,这些特性是奇特的,但对应用程序很有用。基于大量的实验数据,建立了几种理论,但是没有一个理论可以解释松弛剂的所有特性。压电响应力显微镜(PFM)的最新出现允许在亚纳米分辨率下在弛豫器表面进行极化映射。因此,这种发展引起了这样的问题,即是否可以看到有助于扩散X射线散射的极性纳米区域和一系列宏观性能。这篇综述总结了PFM在许多铁电弛豫器中应用的最新进展,并对与这些材料中有趣的物理现象有关的特殊极化分布提供了初步的解释。

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