期刊
NATURE MATERIALS
卷 17, 期 9, 页码 814-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41563-018-0116-3
关键词
-
类别
资金
- Danscatt
- ERC [291321]
- Independent Research Fund Denmark [DFF-4093-00296, DFF-6111-00440]
- Swiss National Science Foundation [200021-159603]
- ARC [DP120103968, DP130100415]
- Swiss National Science Foundation (SNF) [200021_159603] Funding Source: Swiss National Science Foundation (SNF)
- European Research Council (ERC) [291321] Funding Source: European Research Council (ERC)
The characteristic functionality of ferroelectric materials is due to the symmetry of their crystalline structure. As such, ferroelectrics lend themselves to design approaches that manipulate this structural symmetry by introducing extrinsic strain. Using in situ dark-field X-ray microscopy to map lattice distortions around deeply embedded domain walls and grain boundaries in BaTiO3, we reveal that symmetry-breaking strain fields extend up to several micrometres from domain walls. As this exceeds the average domain width, no part of the material is elastically relaxed, and symmetry is universally broken. Such extrinsic strains are pivotal in defining the local properties and self-organization of embedded domain walls, and must be accounted for by emerging computational approaches to material design.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据