Dislocation Multiplication in the Flexoelectric Distortion Grid with an Increase in Electric Field Amplitude
| Autor: | S. A. Pikin, B. A. Umanskii |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Condensed matter physics Plane (geometry) Nucleation General Chemistry Condensed Matter Physics 01 natural sciences Instability 010305 fluids & plasmas Liquid crystal Distortion Electric field 0103 physical sciences General Materials Science Boundary value problem Dislocation 010306 general physics |
| Zdroj: | Crystallography Reports. 63:641-645 |
| ISSN: | 1562-689X 1063-7745 |
| DOI: | 10.1134/s1063774518040211 |
| Popis: | It is shown that a plane one-dimensional flexoelectric grid well simulates the processes of the nucleation of defects (dislocations) and an increase in their number in crystals under increasing mechanical stresses in the crystal lattice. The latter rise with an increase in electric field above the instability threshold and the corresponding growth of the modulations of the flexoelectric-grid spatial structure. Parameters of these modulations are obtained for various boundary conditions at the surface of a nematic film oriented in one direction. The previous data on the dislocation patterns in strong fields are explained. The applicability of the dislocation theory to the planar one-dimensional grid is shown. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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