Abstract
The domain structure in a ferroelectric with well-defined crystallography and negligible ferroelastic distortion [Formula presented] is reported. In contrast to prototypical ferroelectrics in which long-range elastic strain dictates the domain structure, in [Formula presented] the elastic term is insignificant, allowing dipole-dipole interactions and domain wall energies to dominate in determining the domain structure. Electron microscopy reveals ferroelectric domains that are irregularly shaped and highly curved. Out-of-phase boundary defects are shown to be weakly correlated with 90° ferroelectric domain structure.
| Original language | English |
|---|---|
| Pages (from-to) | 4 |
| Number of pages | 1 |
| Journal | Physical Review Letters |
| Volume | 88 |
| Issue number | 10 |
| DOIs | |
| State | Published - 2002 |
| Externally published | Yes |