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)].
Physical Review E
Copyright 1997 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.55.534.
Chang, C. C.; Chien, Liang-Chy; Meyer, R. B. (1997). Piezoelectric Effects in Cholesteric Elastomer Gels. Physical Review E 55(1) 534-537. Retrieved from https://oaks.kent.edu/cpippubs/38