20.500.12556/RUL-117812 Topological-defect-induced surface charge heterogeneities in nematic electrolytes We show that topological defects in an ion-doped nematic liquid crystal can be used to manipulate the surface charge distribution on chemically homogeneous, charge-regulating external surfaces, using a minimal theoretical model. In particular, the location and type of the defect encodes the precise distribution of surface charges and the effect is enhanced when the liquid crystal is flexoelectric. We demonstrate the principle for patterned surfaces and charged colloidal spheres. More generally, our results indicate an interesting approach to control surface charges on external surfaces without changing the surface chemistry. nematic liquid crystals topological defects flexoelectricity dielectric properties electrostatics nematski tekoči kristali topološki defekti fleksoelektričnost dielektričnost elektrostatika true false false Angleški jezik Slovenski jezik Neznano 2020-07-27 14:40:55 2020-07-27 14:40:56 2022-08-30 04:00:23 0000-00-00 00:00:00 2020 0 0 Str. 037801-1-037801-7 iss. 3 Vol. 125 2020 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 538.9 0031-9007 10.1103/PhysRevLett.125.037801 23706371 1282575 RAZ_Ravnik_Miha_2020.pdf RAZ_Ravnik_Miha_2020.pdf 1 4132195F55F53B6C23A50EA8CEC90BBE 4032a8ce0b370cabd33f598e44576d5f6fca46900e4db21646b365edd76c65c6 44a7a8ba-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131715 RAZ_Ravnik_Miha_2020.pdf RAZ_Ravnik_Miha_2020.pdf 1 3286C3E7EC556A721AB6FBBCB0DBEBD7 52c4eeb77afb6684062477f2c4ff6a38e67f51279916458a29550f15ae39bbe9 45319ee3-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131724 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.037801 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=141299 Fakulteta za matematiko in fiziko 0 0 0