Physical Review E
We report a piezolectric effect in cholesteric liquid crystalline elastomer gels. When we apply a shear stress to a cholesteric elastomer gel in the direction perpendicular to its helical axis, a polarization can be induced in the direction perpendicular to both the stress and the helix. This experimental observation agrees with the theory proposed by Pelcovits and Meyer [J. Phys. II France 5, 877 (1995)].
Chang, C. C.; Chien, Liang-Chy; and Meyer, R. B. (1997). Piezoelectric Effects in Cholesteric Elastomer Gels. Physical Review E 55(1), 534-537. Retrieved from http://digitalcommons.kent.edu/cpippubs/38