Abstract
We have observed the absorbance vs polarizer rotation angle for the carbonyl and phenyl ring stretching peaks in an antiferroelectric liquid crystal, 4-(1-methylheptyloxycarbonyl)phenyl 4′-octyloxybiphenyl-4- carboxylate (MHPOBC), and found that the carbonyl group near the chiral center rather lies on the tilt plane in antiferroelectric Sm- while it takes a considerably upright position in ferroelectric Sm-. The spontaneous polarization exists at smectic layer boundaries and its importance to stabilize Sm- has been discussed.
- Received 19 June 1995
DOI:https://doi.org/10.1103/PhysRevE.52.R2153
©1995 American Physical Society