X-ray scattering, nematic liquid crystals, negative dialectric anisotropy
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.
Lorenz, A.; Zimmermann, N.; Kumar, Satyendra; Evans, S. R.; Cook, G.; Martinez, M. F.; and Kitzerow, H. S. (2013). X-ray scattering of a nematic liquid crystal nano-dispersion with negative dielectric anisotropy. Applied Optics 52(22), E1-E5. Retrieved from http://digitalcommons.kent.edu/phypubs/95