Mr. Delafuente et al., LOW AND HIGH-FREQUENCY RELAXATIONS OF A FERROELECTRIC LIQUID-CRYSTAL, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 259, 1995, pp. 1-12
Broadband dielectric measurements on a ferroelectric liquid crystal ha
ve been carried out. The alignment was planar and the cell and sample
holder were the same in the whole frequency range. Five different rela
xations have been obtained and characterized: soft mode, Goldstone mod
e, molecular reorientation around the transversal axis, molecular reor
ientation around the longitudinal axis and a ferroelectric domain mode
. Strengths and frequencies of these modes have been obtained in the d
ifferent phases for different bias fields.