Correction for 'Surface induced smectic order in ionic liquids - an X-ray reflectivity study of [CCim][NTf]' by Julian Mars et al., Phys. Chem. Chem. Phys., 2017, 19, 26651-26661.
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Interdisciplinary Laboratory for Advanced Materials (LIMAV), Materials Science and Engineering Graduate Program (PPGCM), Federal University of Piauí (UFPI), Teresina, PI, Brazil.
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University of Luxembourg, Department of Physics & Materials Science, Luxembourg.
The layered structure of smectic liquid crystals cannot develop unobstructed when confined to spherical shells with layers extending in the radial direction, since the available cross section area increases from the inside to the outside of the shell yet the number and thickness of layers must be constant. For smectic-A (SmA) liquid crystals, with the layer normal parallel to the director , the frustration breaks up the texture into spherical lune domains with twist deformations of alternating sense, overlaid with a herringbone-like secondary modulation and mediated localized bend regions where the boundary conditions are violated. The SmC phase has more degrees of freedom to resolve the frustration thanks to its non-zero tilt angle between and , but its response to tangential shell confinement was never studied.
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