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X-ray scattering of nematic liquid crystal nanodispersion with negative dielectric anisotropy [Invited]

Alexander Lorenz, Natalie Zimmermann, Satyendra Kumar, Dean R. Evans, Gary Cook, Manuel Fernández Martínez, and Heinz-S. Kitzerow

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Abstract

A nematic liquid crystal (LC) mixture was doped with harvested ferroelectric BaTiO3 nanoparticles and investigated with wide- and small-angle x-ray scattering upon heating from the nematic to the isotropic phase. At moderate temperatures, colloidal crystallites were observed. LC test cells with homeotropic anchoring were placed in the x-ray beam and the realignment of the LC director was investigated upon applying an electric field.

© 2013 Optical Society of America

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