抄録
When the gap between two windows is thin enough, FLC in the Sc* phase put between the substrates may interact with them and form two stable states (surface-stabilized FLC). However switching mechanism of FLCs at the molecular level is very complicated and a number of important phenomena are still not fully comprehended. Orientation of FLCs has been studied by using IR spectroscopy, and much attention has been paid to the elucidation of its dynamics. We measured polarization dependences of FT-IR spectra of a ferroelectric liquid crystal containing a δ-lactone ring with large spontaneous polarization to investigate voltage dependences of its orientation in two stable states. The present results show that the origin of spontaneous polarization mainly comes from the C=O group of δ-lactone ring and the deviation of its distribution differs from those of any other parts of the molecule and further that the orientation varies with each electric fields.
