期刊
ADVANCED MATERIALS
卷 24, 期 4, 页码 523-+出版社
WILEY-BLACKWELL
DOI: 10.1002/adma.201103717
关键词
ferroelastic domain boudaries; ferrielectricity; CaTiO3; quantitative aberration-corrected transmission electron microscopy; atomic displacements
类别
资金
- Fund for Scientific Research-Flanders [G.0064.10N, G.0393.11N]
- Flemish Hercules 3 programme for large infrastructure
- European Research Council [246791-COUNTATOMS]
High-resolution aberration-corrected transmission electron microscopy aided by statistical parameter estimation theory is used to quantify localized displacements at a (110) twin boundary in orthorhombic CaTiO(3). The displacements are 3-6 pm for the Ti atoms and confined to a thin layer. This is the first direct observation of the generation of ferroelectricity by interfaces inside this material which opens the door for domain boundary engineering.
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