Doping the nematic liquid crystal 5CB with milled BaTiO<mml:math xmlns:mml="http://www..org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow /><mml:mn>3</mml:mn></mml:msub></mml:math>nanoparticles
A. Lorenz, N. Zimmermann, S. Kumar, D.R. Evans, G. Cook, H.-S. Kitzerow, Physical Review E 86 (2012).