Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/137328
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Formation of Head/Tail-to-Body Charged Domain Walls by Mechanical Stress
Author: Huang, Q.
Yang, J.
Chen, Z.
Chen, Y.
Cabral, M.J.
Luo, H.
Li, F.
Zhang, S.
Li, Y.
Xie, Z.
Huang, H.
Mai, Y.-W.
Ringer, S.P.
Liu, S.
Liao, X.
Citation: ACS Applied Materials and Interfaces, 2022; 15(1):2313-2318
Publisher: American Chemical Society
Issue Date: 2022
ISSN: 1944-8244
1944-8252
Statement of
Responsibility: 
Qianwei Huang, Jiyuan Yang, Zibin Chen, Yujie Chen, Matthew J. Cabral, Haosu Luo, Fei Li, Shujun Zhang, Yulan Li, Zonghan Xie, Houbing Huang, Yiu-Wing Mai, Simon P. Ringer, Shi Liu, and Xiaozhou Liao
Abstract: Domain walls (DWs) in ferroelectric materials are interfaces that separate domains with different polarizations. Charged domain walls (CDWs) and neutral domain walls are commonly classified depending on the charge state at the DWs. CDWs are particularly attractive as they are configurable elements, which can enhance field susceptibility and enable functionalities such as conductance control. However, it is difficult to achieve CDWs in practice. Here, we demonstrate that applying mechanical stress is a robust and reproducible approach to generate CDWs. By mechanical compression, CDWs with a head/tail-to-body configuration were introduced in ultrathin BaTiO3, which was revealed by in-situ transmission electron microscopy. Finite element analysis shows strong strain fluctuation in ultrathin BaTiO3 under compressive mechanical stress. Molecular dynamics simulations suggest that the strain fluctuation is a critical factor in forming CDWs. This study provides insight into ferroelectric DWs and opens a pathway to creating CDWs in ferroelectric materials.
Keywords: ferroelectric
charged domain walls
strain gradient
transmission electron microscopy
domain switching
Rights: © 2022 American Chemical Society
DOI: 10.1021/acsami.2c14598
Grant ID: http://purl.org/au-research/grants/arc/DP190101155
Published version: http://dx.doi.org/10.1021/acsami.2c14598
Appears in Collections:Electrical and Electronic Engineering publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.