Journal of Advanced Dielectrics, Volume. 14, Issue 1, 2330001(2024)
Flexoelectricity in oxide thin films
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.
Get Citation
Copy Citation Text
Guoyang Shen, Renhong Liang, Zhiguo Wang, Zhiyong Liu, Longlong Shu. Flexoelectricity in oxide thin films[J]. Journal of Advanced Dielectrics, 2024, 14(1): 2330001
Category: Research Articles
Received: Aug. 5, 2023
Accepted: Oct. 27, 2023
Published Online: Mar. 25, 2024
The Author Email: Wang Zhiguo (zgwang@ncu.edu.cn), Shu Longlong (llshu@ncu.edu.cn)