Formation and dynamics of easy orientation axis in magnetic field on PVCN-F surface Auteur(s): Buluy O., Reznikov Y., Slyusarenko Kostyantyn, Nobili M., Reshetnyak V. (Article) Publié: Opto-Electronics Review, vol. 14 p.293-297 (2006) Résumé: 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. Commentaires: 1230-3402 |