Lens shape liquid crystals in electric fields

摘要: Abstract Experimental studies of the structure plano-convex lens shaped liquid crystal droplets subjected to electric fields are presented. Similar previous observations by Salamon et al (Phys. Rev. Res. 2, 023261(2020)) in DC magnetic fields, we found formation an inversion wall normal AC fields. While at low frequencies direction is stationary, higher it turns toward external field. In both cases, defect also swept periphery drop, where eventually disappears. The linear displacement field-induced could be described exponential time dependence without any fitting parameter. This combined with threshold for director deformation enable determine bend elastic constant and rotational viscosity using much less substance than existing techniques. rotation high a result antiparallel orientation effective moment vector field due lower dielectric conductivity those rest droplet. Uniform generation, movement walls unique phenomenon soft matters.