Journal
OPTO-ELECTRONICS REVIEW
Volume 14, Issue 4, Pages 293-297Publisher
ELSEVIER SCIENCE BV
DOI: 10.2478/s11772-006-0039-4
Keywords
liquid crystal; easy axis; gliding; drift of easy axis; photoalignment
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We describe the experiments on a magnetically-induced drift of the easy axis on a soft surface of photoaligning material fluoro-polyvinyl-cinnamate. We found unexpected partial relaxation of the drift of the easy axis after switching the magnetic field off. This relaxation cannot be explained in a framework of the existing models and requires additional assumptions about the drift process. We propose a model that explains the experimental data suggesting elastic-like behaviour of the polymer fragments during the drift of the easy axis.
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