挠曲电
材料科学
电介质
纳米技术
极化(电化学)
纳米尺度
联轴节(管道)
凝聚态物理
复合材料
光电子学
物理
化学
物理化学
作者
Gang Shen,Renhong Liang,Zhiguo Wang,Zhiyong Liu,Longlong Shu
标识
DOI:10.1142/s2010135x23300013
摘要
Flexoelectric effect describes the electromechanical coupling between the strain gradient and its internal polarization in all dielectrics. Despite this universality, the resulting flexoelectric field remains small at the macroscopic level. However, in nanosystems, the size-dependent effect of flexoelectricity becomes increasingly significant, leading to a notable flexoelectric field that can strongly influence the material’s physical properties. This review aims to explore the flexoelectric effect specifically at the nanoscale. We achieve this by examining strain gradients generated through two distinct methods: internal inhomogeneous strain and external stimulation. In addition, advanced synthesis techniques are utilized to enhance the properties and functionalities associated with flexoelectricity. Furthermore, we delve into other coupled phenomena observed in thin films, including the coupling and utilization of flexomagnetic and flexophotovoltaic effects. This review presents the latest advancements in these areas and highlights their role in driving further breakthroughs in the field of flexoelectricity.
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