Direct Observation of Ferrielectricity at Ferroelastic Domain Boundaries in CaTiO3 by Electron Microscopy
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Abstract
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 CaTiO3. 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.
Details
| Original language | English |
|---|---|
| Pages (from-to) | 523-527 |
| Journal | Advanced materials |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 24 Jan 2012 |
Keywords
- ferroelastic domain boudaries, ferrielectricity, CaTiO3, quantitative aberration-corrected transmission electron microscopy, atomic displacements
ID: 118045