Observation of Edge Dislocations in Smectic Liquid Crystals
- 13 November 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 41 (20), 1393-1395
- https://doi.org/10.1103/physrevlett.41.1393
Abstract
Isolated single-layer edge dislocations in smectic liquid crystals are observed by polarization microscopy. The modification of the smectic-—smectic- transition temperature by the strain field of the dislocations is used to make them visible. Observations of periodic arrays in thin samples, by various polarization-contrast mechanisms, and the measurement of the Burgers vector confirm the nature of the defects observed.
Keywords
This publication has 10 references indexed in Scilit:
- Dislocation Effects on the Viscoelastic Properties of a Smectic A Liquid CrystalMolecular Crystals and Liquid Crystals, 1977
- Defect structures in lyotropic smectic phases revealed by freeze-fracture electron microscopyPhilosophical Magazine, 1977
- Configuration-seniority spectral distributions in Ni62Journal de Physique Lettres, 1976
- Dislocation and impurity effects in smectic-A liquid crystalsJournal of Applied Physics, 1975
- DISLOCATIONS, GRAIN BOUNDARIES AND FOCAL CONICS IN SMECTICS ALe Journal de Physique Colloques, 1975
- Dislocation effects in smectic-A liquid crystalsJournal of Applied Physics, 1974
- Compression induced smectic-A to smectic-C phase change in a liquid crystalJournal de Physique Lettres, 1974
- Observation of edge dislocation lines in an a-phase smecticJournal de Physique Lettres, 1974
- Linear theory of dislocations in a smetic AJournal de Physique, 1974
- Strain-induced instability of monodomain smectic A and cholesteric liquid crystalsApplied Physics Letters, 1973