抄録
Time-resolved deuterium NMR spectroscopy has been employed to investigate the dynamic director alignment processes following the application or removal of an electric field for a low molar mass nematic (5CB-d_2). The probability distribution function for finding the director at an angle was considered as an initial director distribution in order to explore the mechanism of uniform- and non-uniform director alignments observed in the deuterium NMR spectra during the alignment process. It has been found that a spontaneous director distribution and fluctuation in a steady state is essential to understand the director dynamics under the condition of orthogonal external fields.
