20.500.12556/RUL-117365 Charge-, salt- and flexoelectricity-driven anchoring effects in nematics We investigate the effects of electric double layers and flexoelectricity on the surface anchoring in general nematic fluids. Within a simplified model, we demonstrate for a nematic electrolyte how the surface anchoring strength can be affected by the surface charge, bulk ion concentration and/or flexoelectricity, effectively changing not only the magnitude of the anchoring but also the anchoring type, such as from planar to tilted. In particular, we envisage possible tuning of the anchoring strength by the salt concentration in the regime where sufficiently strong electrostatic anchoring, as controlled by the (screened) surface charge, can compete with the non-electrostatic anchoring. This effect is driven by the competing energetic-torque couplings between nematic director and the emergent electrostatic potential, due to surface charge, ions and flexoelectricity. Our findings propose a way of influencing surface anchoring by using electrostatic effects, which could be used in various aspects, including in the self-assembly of colloidal particles in nematic fluids, optical and display patterns, and sensing. nematic fluids electrostatics electric double layer flexoelectricity surface anchoring nematske tekočine elektrostatika električna dvojna plast fleksoelektričnost površinsko sidranje true false false Angleški jezik Slovenski jezik Neznano 2020-07-08 12:36:06 2020-07-08 12:36:07 2022-08-29 03:42:56 0000-00-00 00:00:00 2021 0 0 Str. 423-435 iss. 3 Vol. 48 2021 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2021-07-07 544.6/.7 0267-8292 10.1080/02678292.2020.1786176 21920003 1690628 RAZ_Everts_Jeffrey_Christopher_2020.pdf RAZ_Everts_Jeffrey_Christopher_2020.pdf 1 372A48840CDA63B14AEC1C47F80AA0D4 52cd355089384f39e7e4fa714a624afde822f373daa7ac952746f6788986487e 2a237cb5-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131226 https://www.tandfonline.com/doi/full/10.1080/02678292.2020.1786176 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=141298 Fakulteta za matematiko in fiziko 0 0 0