LOW AND HIGH-FREQUENCY RELAXATIONS OF A FERROELECTRIC LIQUID-CRYSTAL

Citation
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
Citations number
30
Categorie Soggetti
Crystallography
ISSN journal
1058725X
Volume
259
Year of publication
1995
Pages
1 - 12
Database
ISI
SICI code
1058-725X(1995)259:<1:LAHROA>2.0.ZU;2-1
Abstract
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.