Abstract
Abstract Based on Landau-de Gennes theory, electric field-induced structure transition of negative nematic liquid crystals in submicron-confined cylinder cells was investigated. The easy orientation of the weak anchoring conditions on the cylindrical side surface was prescribed along the radial direction. When we kept the cell gap d unchanged and gradually increased the voltage U, system showed an unexpected structure transition. At a critical value of U = Uc, two-dimensional (2D) local order reconstruction occurred in the system. Meanwhile, when we kept the ratio of U/d unchanged and gradually decreased the d, biaxiality layer gradually moved from the central axis to the cylindrical side surface and disappeared when d is under nanoscale. Furthermore, Uc decreased when the anchoring energy on the side surface increased.
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