Flexopiezoelectricity at ferroelastic domain walls in WO3 films

Observation of a strain-gradient-induced piezoresponse at domain walls remains a challenge. Here, the authors find the piezoelectric response to be enhanced in the ferroelastic domain walls of centrosymmetric tungsten trioxide thin films due to a large strain gradient over a wide width of the wall.

Bibliographic Details
Main Authors: Shinhee Yun, Kyung Song, Kanghyun Chu, Soo-Yoon Hwang, Gi-Yeop Kim, Jeongdae Seo, Chang-Su Woo, Si-Young Choi, Chan-Ho Yang
Format: Article
Language:English
Published: Nature Publishing Group 2020-09-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-18644-w