Abstract
The dynamics of 90° domain formation during a ferroelectric phase transition is studied using a computer simulation model based on time-dependent Ginzburg-Landau (TDGL) equations. This model does not make a priori assumptions on the domain morphologies and their evolution path, and takes into account simultaneously the non-local elastic and electric dipole-dipole interactions, and the local interactions resulting in the domain-wall energy. A two-dimensional system is considered. The domain structure is described by a vector polarization field whose temporal and spatial equation is obtained by numerically solving the TDGL equations in Fourier space. It is shown that both the non-local elastic and electric dipole-dipole interactions are critical in order to explain the experimental observation which demonstrated that tail-to-head or head-to-tail arrangement of dipoles at twin boundaries.
Original language | English (US) |
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Pages (from-to) | 182-191 |
Number of pages | 10 |
Journal | Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing |
Volume | 238 |
Issue number | 1 |
DOIs | |
State | Published - Oct 30 1997 |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering