Abstract
We have studied the stability of domains and domain walls in multiferroic BiFeO3 thin films using a combination of piezoelectric force microscopy and phase-field simulations. We have discovered that a film-substrate misfit strain may result in a drastically different thermodynamic stability of two parallel domain walls with the same orientation. A fundamental understanding of the underlying physics, the stress distribution in a domain structure, leads to a novel approach to control the ferroelastic domain stability in the multiferroic BiFeO3 system.
Original language | English (US) |
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Article number | 217601 |
Journal | Physical review letters |
Volume | 99 |
Issue number | 21 |
DOIs | |
State | Published - Nov 20 2007 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy