P. Jagemalm et al., Optic, electrooptic and dielectric properties of novel antiferroelectric liquid crystal compounds, FERROELECTR, 244(1-4), 2000, pp. 447-457
The optic, electrooptic and dielectric spectroscopy characterisation of nov
el four-ring thiophene-based chiral eaters comprising suitably 5,5'-disubst
ituted 2,2'-bithiophene (antiferroelectrics) is reported. The two compounds
exhibit interesting hysterises in their phase sequences, and we show that
even whole phases (e.g. their relatively wide ferri-phases) may be suppress
ed by the surface interactions in thin cells.