20.500.12556/RUL-152839 Running streams of a ferroelectric nematic liquid crystal on a lithium niobate surface Sessile droplets of a ferroelectric nematic liquid crystalline material were exposed to surface electric fields produced by pyroelectric and photogalvanic (photovoltaic) effects in X-cut iron-doped lithium niobate crystals. The resulting dynamic processes were monitored by polarisation optical (video)microscopy (POM). During heating/cooling cycles, at first, the droplets change their shape from spherical to extended ellipsoidal. Then, they start to move rapidly along the surface electric field, i.e. along the crystal’s polar axis (c-axis). During this motion, several droplets merge into running streams (tendrils) extending towards the edges of the top surface area. Finally, practically all liquid crystalline material is transported from the top surface to the side surfaces of the crystal. At stabilised temperatures, laser illumination of the assembly causes dynamic processes that are localised to the illuminated area. Also, in this case, the LC droplets merge into several tendril-like formations that are preferentially oriented along the c-axis of the crystal. The pattern of tendrils fluctuates with time, but it persists as long as the illumination is present. In this case, the LC material is transported between the central and the edge regions of the illuminated area. condensed matter physics ferroelectric nematic liquid crystals electric field liquid crystals ferroelectric nematic phase interaction with the electric field dynamic phenomena fizika kondenzirane snovi feroelektrični nematski tekoči kristali električno polje true false true Angleški jezik Slovenski jezik Članek v reviji 2023-12-08 13:42:33 2023-12-08 13:42:34 2023-12-09 03:49:42 0000-00-00 00:00:00 2023 0 0 Str. 1478–1485 no. 7/10 Vol. 50 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 538.9 0267-8292 10.1080/02678292.2022.2161018 136331779 Running_streams_of_a_ferroelectric_nematic_liquid_crystal_on_a_lithium_niobate_surface.pdf Running_streams_of_a_ferroelectric_nematic_liquid_crystal_on_a_lithium_niobate_surface.pdf 1 4E6F0E25CD3778D93C269BB5E12AD50D 0f66a57042664b943119e759cbd592e6036c9c3a4f5943a6d8d091da5855b705 963547a7-95c7-11ee-9c20-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178525 https://www.tandfonline.com/doi/full/10.1080/02678292.2022.2161018 0 661e3237-95c7-11ee-9c20-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178524 Fakulteta za matematiko in fiziko 0 0 0