S. Pfeiffer et al., FERROELECTRICITY IN A LANGMUIR-BLODGETT MULTILAYER FILM OF A LIQUID-CRYSTALLINE SIDE-CHAIN POLYMER, Applied physics letters, 63(9), 1993, pp. 1285-1287
The observation of ferroelectric behavior in a Langmuir-Blodgett (LB)
film of a liquid crystalline polymer is reported. It is established th
at a 30-layer film exhibits spontaneous polarization and electro-optic
switching. The magnitude of the polarization of the LB film is found
to be similar to that of the bulk material. The polarization current i
n the LB film follows the applied triangular wave field to higher freq
uencies as compared to the same material in a surface stabilized (sand
wich) cell.